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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 77a8d1bcbc9c79e76e64b5fd50aeda23d4d9a0ca42299f0f7a72f8da032fcc54. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry


Efimer


Vendor detections: 11


Intelligence 11 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 77a8d1bcbc9c79e76e64b5fd50aeda23d4d9a0ca42299f0f7a72f8da032fcc54
SHA3-384 hash: c7ddd1781cf6b4af5321ff2b85b9ef0b1deb8debfdaf1beb259babafb9327889ae518390c909bef639d87807040d8901
SHA1 hash: 7749c4f833ed400b43cb2188de2e45420a06d441
MD5 hash: 3860c03927290688db2f7769140103e4
humanhash: aspen-finch-nineteen-north
File name:composer.php
Download: download sample
Signature Efimer
Create hunting rule
File size:415'744 bytes
First seen:2026-10-07 01:52:13 UTC
Last seen:Never
File type:Executable exe
MIME type:application/vnd.microsoft.portable-executable
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (49'249 x AgentTesla, 20'537 x Formbook, 12'383 x SnakeKeylogger)
ssdeep 6144:H+F9Xh6cTwSSkHv7B0+N1KfoUk7ZmRP0iol6BbCecNZbYQuTQnfaKYt6/Hwz6:ecXy0+jzmsOBGecN0QnfaKYt6/Hwz6
TLSH T19D947D9DAE7CADEFD6AFC0B9C4948E9597416036131AA7438103E0EA9D0CE92DD305F7
TrID 73.9% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
6.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
6.6% (.EXE) Win64 Executable (generic) (6522/11/2)
4.5% (.EXE) Win32 Executable (generic) (4504/4/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Magika pebin
Reporter aachum
Tags:ClickFix Efimer exe


Avatar
iamaachum
https://kanrigroup.com/composer.php

Intelligence

File Origin
# of uploads :
1
# of downloads :
204
Origin country :
ES ES
Vendor Threat Intelligence
Malware configuration found for:
ConfuserEx
Details
Link:
https://research.acce.ciphertechsolutions.com/results/985033d8-7ba3-4859-9632-35447a2d1f20/
Malware family:
n/a
ID:
1
File name:
exe
Verdict:
Malicious activity
Analysis date:
2026-10-07 02:03:28 UTC
Tags:
confuser
Link:
https://app.any.run/tasks/2b76c15d-bae2-4e8e-ae64-915ee3dea373

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/90915/
Detection(s):
SecuriteInfo.com.Win32.MalwareX-gen.62318865.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a window
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
cmd confuser confuserex confuserex confuserex corrupted evasive installer-heuristic lolbin masquerade obfuscated obfuscated packed packed reconnaissance
Link:
https://www.filescan.io/uploads/6ac5a5d1f0ea67d2a423e9ac/reports/bb1dcfad-400d-40d7-bfd9-e9f45fa86a6e/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/77a8d1bcbc9c79e76e64b5fd50aeda23d4d9a0ca42299f0f7a72f8da032fcc54
Verdict:
Malicious
File Type:
exe x32
First seen:
2026-10-06T23:15:00Z UTC
Last seen:
2026-10-06T23:54:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/77a8d1bcbc9c79e76e64b5fd50aeda23d4d9a0ca42299f0f7a72f8da032fcc54/results?tab=lookup
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/726de507-3719-458f-917b-889763b182a8
Gathering data
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/77a8d1bcbc9c79e76e64b5fd50aeda23d4d9a0ca42299f0f7a72f8da032fcc54
Verdict:
inconclusive
YARA:
14 match(es)
Tags:
.Net Executable Managed .NET PE (Portable Executable) PE File Layout SOS: 0.99 Win 32 Exe x86
Link:
https://app.malva.re/file/3860c03927290688db2f7769140103e4
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/77a8d1bcbc9c79e76e64b5fd50aeda23d4d9a0ca42299f0f7a72f8da032fcc54/
Threat name:
Win32.Trojan.Generic
Create hunting rule
Status:
Suspicious
First seen:
2026-10-07 01:53:16 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
14 of 24 (58.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=o6undpf4tr46o3tewx6vblw2epkntigkiiuz6d32ol4nuazpzrka._file
Result
Malware family:
n/a
Score:
  8/10
Tags:
execution
Link:
https://tria.ge/reports/261007-cahyjazzes/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates connected drives
Command and Scripting Interpreter: PowerShell
Unpacked files
SH256 hash:
77a8d1bcbc9c79e76e64b5fd50aeda23d4d9a0ca42299f0f7a72f8da032fcc54
MD5 hash:
3860c03927290688db2f7769140103e4
SHA1 hash:
7749c4f833ed400b43cb2188de2e45420a06d441
Detections:
INDICATOR_EXE_Packed_ConfuserEx
Create hunting rule
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/bec7c8a4-6a82-4429-a1c5-0629db534ac2/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/77a8d1bcbc9c79e76e64b5fd50aeda23d4d9a0ca42299f0f7a72f8da032fcc54

YARA Signatures

MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:INDICATOR_EXE_Packed_ConfuserEx
Create hunting rule
Author:ditekSHen
Description:Detects executables packed with ConfuserEx Mod
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:WIN_Sample_Unique_69354b41
Create hunting rule
Author:Marjoriefort
Description:Specimen unique (soumission Bazaar) - strings distinctifs propres au sample
Reference:69354b41e10daf03d3f3af881b32d5c0fec56b1cfe96629fd4c5263413a42854.exe

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Web download

Efimer

Executable exe 77a8d1bcbc9c79e76e64b5fd50aeda23d4d9a0ca42299f0f7a72f8da032fcc54

(this sample)

  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/90915/

Comments