MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f5c604a206bb967b2657569f33d30a10d91b5ab2fbf4fe3e310cb3a8f8f8836d. 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: 14


Intelligence 14 IOCs YARA 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f5c604a206bb967b2657569f33d30a10d91b5ab2fbf4fe3e310cb3a8f8f8836d
SHA3-384 hash: 7b0486bb5002d1e42964b03c87327f4df6f897bda0f67b940ec1b14e093aba3ff7b94f39f19dd35dd8fd94f23a84ab22
SHA1 hash: c8a2ae628af0731f1545aae241727d0982c9ab62
MD5 hash: dfe4e71bcc58cd7ff3f088ba44464417
humanhash: sierra-fanta-uncle-six
File name:common.dat
Download: download sample
Signature Efimer
Create hunting rule
File size:13'825'030 bytes
First seen:2026-05-15 20:36:35 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash c5e49de42b1165b00bd79240b8cd617d (47 x Efimer)
ssdeep 393216:IZLvGQGiEiLFtMc3CcLXMCHWUjXwcuI3/PGTAI:IZ7G11iLFtMOLXMb8XlH/O7
TLSH T18ED6331D6FE192BFD7B6C0343AC512F5F878B86016746C2A6F94D7B1BC43190AA6C827
TrID 45.6% (.EXE) Microsoft Visual C++ compiled executable (generic) (16529/12/5)
18.0% (.EXE) Win64 Executable (generic) (6522/11/2)
13.9% (.EXE) Win16 NE executable (generic) (5038/12/1)
5.6% (.ICL) Windows Icons Library (generic) (2059/9)
5.6% (.EXE) OS/2 Executable (generic) (2029/13)
Magika pebin
dhash icon e8e864e0d8e8ec48 (1 x Efimer)
Reporter aachum
Tags:ClickFix Efimer exe


Avatar
iamaachum
https://dynga.pl/common.dat

Intelligence

File Origin
# of uploads :
1
# of downloads :
103
Origin country :
ES ES
Vendor Threat Intelligence
Malware configuration found for:
PyInstaller
Details
PyInstaller
a compiled assembly and a Python version
Link:
https://research.acce.ciphertechsolutions.com/results/c417151d-3310-473c-b4c3-b8f83c2b5ff0/
Malware family:
n/a
ID:
1
File name:
_f5c604a206bb967b2657569f33d30a10d91b5ab2fbf4fe3e310cb3a8f8f8836d.exe
Verdict:
Malicious activity
Analysis date:
2026-05-15 20:38:24 UTC
Tags:
python stealer
Link:
https://app.any.run/tasks/287a2174-4ab1-4af4-bbc6-b825848edbb2

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/66067/
Detection(s):
SecuriteInfo.com.Variant.Ser.Tedy.8546.88191841.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
94.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6a078406953bbcef1c9096f6
Tags:
installer shell sage
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
anti-debug expand installer-heuristic lolbin masquerade overlay packed packed packed pyinstaller reconnaissance
Link:
https://www.filescan.io/uploads/6a07840478f38c56ac70d96a/reports/9f0a045b-12e7-4590-a1c6-67ae1cd969bb/overview
Verdict:
Malicious
Labled as:
Ser.Tedy.Generic
Link:
https://www.hybrid-analysis.com/sample/f5c604a206bb967b2657569f33d30a10d91b5ab2fbf4fe3e310cb3a8f8f8836d
Verdict:
Malicious
File Type:
exe x64
First seen:
2026-05-15T15:25:00Z UTC
Last seen:
2026-05-15T17:52:00Z UTC
Hits:
~10
Detections:
Trojan-PSW.Win32.Coins.sb Trojan-PSW.MSIL.Stealer.sb HEUR:Trojan.Python.Agent.gen HEUR:Trojan-PSW.Python.Agent.gen
Link:
https://opentip.kaspersky.com/f5c604a206bb967b2657569f33d30a10d91b5ab2fbf4fe3e310cb3a8f8f8836d/results?tab=lookup
Malware family:
Santastealer
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/7a8ff170-ca07-41fe-b11f-9ad4a02695ae
Result
Threat name:
Efimer Clipper
Create hunting rule
Detection:
malicious
Classification:
spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1914263
Signature
Adds a directory exclusion to Windows Defender
Found pyInstaller with non standard icon
Joe Sandbox ML detected suspicious sample
Loading BitLocker PowerShell Module
Multi AV Scanner detection for submitted file
Sigma detected: Execution from Suspicious Folder
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Script Interpreter Execution From Suspicious Folder
Sigma detected: Suspicious Program Location with Network Connections
Sigma detected: Suspicious Script Execution From Temp Folder
Sigma detected: WScript or CScript Dropper
Suspicious execution chain found
Tries to steal Crypto Currency Wallets
Uses schtasks.exe or at.exe to add and modify task schedules
Windows Scripting host queries suspicious COM object (likely to drop second stage)
WScript reads language and country specific registry keys (likely country aware script)
Yara detected Efimer Clipper
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1914263 Sample: common.dat.exe Startdate: 15/05/2026 Architecture: WINDOWS Score: 100 75 ipinfo.io 2->75 91 Multi AV Scanner detection for submitted file 2->91 93 Yara detected Efimer Clipper 2->93 95 Sigma detected: WScript or CScript Dropper 2->95 97 6 other signatures 2->97 9 common.dat.exe 31 2->9         started        13 wscript.exe 2->13         started        15 wscript.exe 2->15         started        signatures3 process4 file5 67 C:\Users\user\AppData\...\unicodedata.pyd, PE32+ 9->67 dropped 69 C:\Users\user\AppData\Local\...\select.pyd, PE32+ 9->69 dropped 71 C:\Users\user\AppData\Local\...\python313.dll, PE32+ 9->71 dropped 73 15 other files (none is malicious) 9->73 dropped 101 Uses schtasks.exe or at.exe to add and modify task schedules 9->101 103 Adds a directory exclusion to Windows Defender 9->103 105 Found pyInstaller with non standard icon 9->105 17 common.dat.exe 11 9->17         started        107 Windows Scripting host queries suspicious COM object (likely to drop second stage) 13->107 109 WScript reads language and country specific registry keys (likely country aware script) 13->109 21 ugate.exe 13->21         started        24 curl.exe 13->24         started        111 Suspicious execution chain found 15->111 signatures6 process7 dnsIp8 59 C:\Users\Public\Documents\ajoni\ugate.exe, PE32+ 17->59 dropped 61 C:\Users\Public\Documents\ajoni\emivu.xml, XML 17->61 dropped 63 C:\Users\Public\Documents\ajoni\emivu.js, ASCII 17->63 dropped 65 C:\Users\Public\Documents\ajoni\alovu.js, ASCII 17->65 dropped 87 Adds a directory exclusion to Windows Defender 17->87 89 Tries to steal Crypto Currency Wallets 17->89 26 cmd.exe 1 17->26         started        29 cmd.exe 1 17->29         started        31 cmd.exe 1 17->31         started        37 6 other processes 17->37 77 172.105.47.96, 9001 LINODE-APLinodeLLCUS United States 21->77 79 198.251.68.144, 9001 ONEANDONE-ASBrauerstrasse48DE United States 21->79 81 9 other IPs or domains 21->81 33 conhost.exe 21->33         started        35 conhost.exe 24->35         started        file9 signatures10 process11 dnsIp12 113 Adds a directory exclusion to Windows Defender 26->113 40 powershell.exe 23 26->40         started        43 conhost.exe 26->43         started        45 powershell.exe 23 29->45         started        47 conhost.exe 29->47         started        49 powershell.exe 23 31->49         started        51 conhost.exe 31->51         started        83 ipinfo.io 34.117.59.81, 443, 49699 GOOGLE-AS-APGoogleAsiaPacificPteLtdSG United States 37->83 85 127.0.0.1 unknown unknown 37->85 53 powershell.exe 37->53         started        55 powershell.exe 37->55         started        57 7 other processes 37->57 signatures13 process14 signatures15 99 Loading BitLocker PowerShell Module 40->99
Score:
92%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/f5c604a206bb967b2657569f33d30a10d91b5ab2fbf4fe3e310cb3a8f8f8836d
Verdict:
inconclusive
YARA:
5 match(es)
Tags:
Executable PE (Portable Executable) PE File Layout Win 64 Exe x64
Link:
https://app.malva.re/file/dfe4e71bcc58cd7ff3f088ba44464417
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f5c604a206bb967b2657569f33d30a10d91b5ab2fbf4fe3e310cb3a8f8f8836d/
Verdict:
Malicious
Threat:
Trojan-PSW.Win32.Coins
Link:
https://tip.neiki.dev/file/f5c604a206bb967b2657569f33d30a10d91b5ab2fbf4fe3e310cb3a8f8f8836d
Threat name:
Win64.Dropper.Generic
Create hunting rule
Status:
Suspicious
First seen:
2026-05-15 20:25:22 UTC
File Type:
PE+ (Exe)
Extracted files:
482
AV detection:
20 of 37 (54.05%)
Threat level:
  3/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=6xdajiqgxolhwjsxk2pthuykcdmrwwvs7p2p4prrbsz2r6hyqnwq._file
Gathering data
Unpacked files
SH256 hash:
f5c604a206bb967b2657569f33d30a10d91b5ab2fbf4fe3e310cb3a8f8f8836d
MD5 hash:
dfe4e71bcc58cd7ff3f088ba44464417
SHA1 hash:
c8a2ae628af0731f1545aae241727d0982c9ab62
Link:
https://www.unpac.me/results/124089a5-77f6-40a7-8f5f-10ec6a4af7a8/
SH256 hash:
36585912e5eaf83ba9fea0631534f690ccdc2d7ba91537166fe53e56c221e153
MD5 hash:
862f820c3251e4ca6fc0ac00e4092239
SHA1 hash:
ef96d84b253041b090c243594f90938e9a487a9a
Link:
https://www.unpac.me/results/124089a5-77f6-40a7-8f5f-10ec6a4af7a8/
SH256 hash:
4e5d5d20d6d31e72ab341c81e97b89e514326c4c861b48638243bdf0918cfa43
MD5 hash:
123ad0908c76ccba4789c084f7a6b8d0
SHA1 hash:
86de58289c8200ed8c1fc51d5f00e38e32c1aad5
Link:
https://www.unpac.me/results/124089a5-77f6-40a7-8f5f-10ec6a4af7a8/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/f5c604a206bb/report/overview.html
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/f5c604a206bb967b2657569f33d30a10d91b5ab2fbf4fe3e310cb3a8f8f8836d

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:DebuggerException__SetConsoleCtrl
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:Detect_PyInstaller
Create hunting rule
Author:Obscurity Labs LLC
Description:Detects PyInstaller compiled executables across platforms
Rule name:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:pe_detect_tls_callbacks
Create hunting rule
Rule name:PyInstaller
Create hunting rule
Author:@bartblaze
Description:Identifies executable converted using PyInstaller. This rule by itself does NOT necessarily mean the detected file is malicious.
Rule name:TH_AntiVM_MassHunt_Win_Malware_2026_CYFARE
Create hunting rule
Author:CYFARE
Description:Detects Windows malware employing anti-VM / anti-sandbox evasion techniques across VMware, VirtualBox, Hyper-V, QEMU, Xen, and generic sandbox environments
Reference:https://cyfare.net/
Rule name:upxHook
Create hunting rule
Author:@r3dbU7z
Description:Detect artifacts from 'upxHook' - modification of UPX packer
Reference:https://bazaar.abuse.ch/sample/6352be8aa5d8063673aa428c3807228c40505004320232a23d99ebd9ef48478a/

File information

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

Web download

Efimer

Executable exe f5c604a206bb967b2657569f33d30a10d91b5ab2fbf4fe3e310cb3a8f8f8836d

(this sample)

  
Link
https://tria.ge/260515-wjkm9sgx2q/behavioral2
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/66067/

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