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setup_efas_en.exe

The application setup_efas_en.exe has been detected as a potentially unwanted program by 23 anti-malware scanners. The program is a setup application that uses the Inno Setup installer, however the file is not signed with an authenticode signature from a trusted source. The file has been seen being downloaded from dl.kochialaetum.com.
MD5:
6abcc759996a827f967807ed941349ae

SHA-1:
71543a6ef1ca82bc98cfbaed595cdacca7eef159

SHA-256:
c5084411b81f1260dfbc99759c3a4c869a6d31c0320cce2904d569089a19454a

Scanner detections:
23 / 68

Status:
Potentially unwanted

Analysis date:
4/23/2025 1:43:22 AM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Gen:Variant.Mikey.26182
475

Avira AntiVirus
ADWARE/EoRezo.Gen
8.3.2.2

Arcabit
Adware.Eorezo.BZ
1.0.0.582

avast!
Win32:Adware-ASG [PUP]
2014.9-151018

AVG
Generic6
2016.0.2953

Baidu Antivirus
Adware.Win32.EoRezo
4.0.3.151018

Bitdefender
Gen:Variant.Mikey.26182
1.0.20.1455

Dr.Web
Adware.Downware.10601
9.0.1.0291

Emsisoft Anti-Malware
Gen:Variant.Mikey.26182
8.15.10.18.06

ESET NOD32
Win32/Adware.EoRezo.AJ (variant)
9.12413

Fortinet FortiGate
Adware/Eorezo
10/18/2015

F-Secure
Gen:Variant.Mikey.26182
11.2015-18-10_1

G Data
Gen:Variant.Mikey.26182
15.10.25

K7 AntiVirus
Riskware
13.210.17548

Malwarebytes
PUP.Optional.eFast
v2015.10.18.06

MicroWorld eScan
Gen:Variant.Mikey.26182
16.0.0.873

NANO AntiVirus
Riskware.Win32.Eorezo.dwryth
0.30.26.3947

nProtect
Adware.Eorezo.BZ
15.10.15.02

Panda Antivirus
Trj/CI.A
15.10.18.06

Quick Heal
PUA.AdwareEorezo.DC8
10.15.14.00

Sophos
Generic PUA HB (PUA)
4.98

SUPERAntiSpyware
Adware.EoRezo/Variant
9562

Vba32 AntiVirus
AdWare.Eorezo
3.12.26.4

File size:
1.8 MB (1,865,757 bytes)

File type:
Executable application (Win32 EXE)

Installer:
Inno Setup

Language:
Language Neutral

Common path:
C:\users\{user}\appdata\local\temp\{random}.tmp\setup_efas_en.exe

File PE Metadata
Compilation timestamp:
6/19/1992 6:22:17 PM

OS version:
1.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
49152:C9akuVR5P/eIayVHOUIGaUQiZJhngghwIfFbsqq:MakuVR5XekV3Q2hn75Fbsqq

Entry address:
0xA5F8

Entry point:
55, 8B, EC, 83, C4, C4, 53, 56, 57, 33, C0, 89, 45, F0, 89, 45, DC, E8, CE, 8A, FF, FF, E8, D5, 9C, FF, FF, E8, 64, 9F, FF, FF, E8, 07, A0, FF, FF, E8, A6, BF, FF, FF, E8, 11, E9, FF, FF, E8, 78, EA, FF, FF, 33, C0, 55, 68, C9, AC, 40, 00, 64, FF, 30, 64, 89, 20, 33, D2, 55, 68, 92, AC, 40, 00, 64, FF, 32, 64, 89, 22, A1, 14, C0, 40, 00, E8, 26, F5, FF, FF, E8, 11, F1, FF, FF, 80, 3D, 34, B2, 40, 00, 00, 74, 0C, E8, 23, F6, FF, FF, 33, C0, E8, C4, 97, FF, FF, 8D, 55, F0, 33, C0, E8, B6, C5, FF, FF, 8B, 55...
 
[+]

Entropy:
7.9932

Packer / compiler:
Inno Setup v5.x - Installer Maker

Code size:
39.5 KB (40,448 bytes)

The file setup_efas_en.exe has been seen being distributed by the following URL.

http://dl.kochialaetum.com/download/hq/p010/.../setup_efas_en.exe

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