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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 6d1b04896d809b3b8041f6faef0aab7622ed84c01667e4570d630c4eae103b5d. 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: 12


Intelligence 12 IOCs YARA 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 6d1b04896d809b3b8041f6faef0aab7622ed84c01667e4570d630c4eae103b5d
SHA3-384 hash: 92dda00c1b7b1d6c7ed664f2a6e54492506061876aff3c7e700a6026532438e1945fbc3358d09df7c3debdc2726b4799
SHA1 hash: ce9e2940bb150428f107616cc6cdb25825a7824d
MD5 hash: 99bfc6045b556d1aef17f894090008b4
humanhash: queen-william-floor-white
File name:default.dat
Download: download sample
Signature Efimer
Create hunting rule
File size:14'325'778 bytes
First seen:2026-07-09 11:52:10 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash dcaf48c1f10b0efa0a4472200f3850ed (716 x Efimer, 60 x BlankGrabber, 23 x SalatStealer)
ssdeep 393216:b+KfBnYRkRZrfkJIIdFcYkCo1rpZXMCHWUjXTcuI3/PGTAI:b3KR4wKIdFctdr3XMb8XQH/O7
TLSH T1F8E6330CBAD452DEE9B3C03DDDE19A61E566B07A0B73C6CF45E987A0AE130D0853D25B
TrID 37.0% (.EXE) Win64 Executable (generic) (6522/11/2)
28.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
11.5% (.EXE) OS/2 Executable (generic) (2029/13)
11.3% (.EXE) Generic Win/DOS Executable (2002/3)
11.3% (.EXE) DOS Executable (generic) (2000/1)
Magika pebin
dhash icon d4f8d1f0e0e971b2 (8 x Efimer)
Reporter aachum
Tags:ClickFix Efimer exe


Avatar
iamaachum
https://tuasesoriadigital.es/default.dat

Intelligence

File Origin
# of uploads :
1
# of downloads :
144
Origin country :
ES ES
Vendor Threat Intelligence
Malware configuration found for:
PyInstaller
Details
Link:
https://research.acce.ciphertechsolutions.com/results/a22836d7-884e-4a42-93d6-2141345a156f/
Malware family:
n/a
ID:
1
File name:
default.exe
Verdict:
No threats detected
Analysis date:
2026-07-09 11:45:18 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/560aeacb-982c-4664-a451-93738be5d9c4

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/74062/
Detection(s):
SecuriteInfo.com.Variant.Dropper.354.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
91.7%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6a4f89c413f68731ed6afa9f
Tags:
installer shell sage
Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a file in the %temp% subdirectories
Restart of the analyzed sample
Creating a window
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
anti-debug expand installer-heuristic lolbin masquerade microsoft_visual_cc overlay packed packed packed pyinstaller reconnaissance
Link:
https://www.filescan.io/uploads/6a4f8b9021754d35e8d60881/reports/89b6d99e-a7e8-4898-b9b1-fc6fe0610b0b/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_70%
Link:
https://www.hybrid-analysis.com/sample/6d1b04896d809b3b8041f6faef0aab7622ed84c01667e4570d630c4eae103b5d
Verdict:
Malicious
File Type:
exe x64
First seen:
2026-07-09T08:49:00Z UTC
Last seen:
2026-07-10T19:27:00Z UTC
Hits:
~10
Detections:
HEUR:Trojan.Python.Agent.gen HEUR:Trojan-PSW.Python.Agent.gen Trojan-PSW.Win32.Coins.sb Trojan-PSW.MSIL.Stealer.sb
Link:
https://opentip.kaspersky.com/6d1b04896d809b3b8041f6faef0aab7622ed84c01667e4570d630c4eae103b5d/results?tab=lookup
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/459378da-58cb-490b-b170-94c364828b72
Result
Threat name:
n/a
Detection:
malicious
Classification:
evad
Score:
72 / 100
Link:
https://www.joesandbox.com/analysis/1939853
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: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Suspicious Script Execution From Temp Folder
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1939853 Sample: default.dat.exe Startdate: 09/07/2026 Architecture: WINDOWS Score: 72 56 Multi AV Scanner detection for submitted file 2->56 58 Joe Sandbox ML detected suspicious sample 2->58 60 Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet 2->60 62 Sigma detected: Suspicious Script Execution From Temp Folder 2->62 9 default.dat.exe 31 2->9         started        process3 file4 46 C:\Users\user\AppData\...\unicodedata.pyd, PE32+ 9->46 dropped 48 C:\Users\user\AppData\Local\...\select.pyd, PE32+ 9->48 dropped 50 C:\Users\user\AppData\Local\...\python313.dll, PE32+ 9->50 dropped 52 15 other files (none is malicious) 9->52 dropped 66 Adds a directory exclusion to Windows Defender 9->66 68 Found pyInstaller with non standard icon 9->68 13 default.dat.exe 1 9->13         started        signatures5 process6 signatures7 70 Adds a directory exclusion to Windows Defender 13->70 16 cmd.exe 1 13->16         started        19 cmd.exe 1 13->19         started        21 cmd.exe 1 13->21         started        23 9 other processes 13->23 process8 signatures9 54 Adds a directory exclusion to Windows Defender 16->54 25 powershell.exe 23 16->25         started        28 conhost.exe 16->28         started        30 powershell.exe 23 19->30         started        32 conhost.exe 19->32         started        34 powershell.exe 23 21->34         started        36 conhost.exe 21->36         started        38 powershell.exe 23->38         started        40 powershell.exe 23->40         started        42 16 other processes 23->42 process10 signatures11 64 Loading BitLocker PowerShell Module 25->64 44 conhost.exe 28->44         started        process12
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/6d1b04896d809b3b8041f6faef0aab7622ed84c01667e4570d630c4eae103b5d
Gathering data
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/6d1b04896d809b3b8041f6faef0aab7622ed84c01667e4570d630c4eae103b5d/
Verdict:
Malicious
Threat:
Trojan.Python.Agent
Link:
https://tip.neiki.dev/file/6d1b04896d809b3b8041f6faef0aab7622ed84c01667e4570d630c4eae103b5d
Threat name:
Win64.Trojan.Egairtigado
Create hunting rule
Status:
Malicious
First seen:
2026-07-09 11:45:32 UTC
File Type:
PE+ (Exe)
Extracted files:
482
AV detection:
17 of 38 (44.74%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=nunqjclnqcntxacb635o6cvloyro3bgaczt6ivynmmge5lqqhnoq._file
Result
Malware family:
n/a
Score:
  8/10
Tags:
execution pyarmor pyinstaller
Link:
https://tria.ge/reports/260709-n15qrshw3p/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Loads dropped DLL
Command and Scripting Interpreter: PowerShell
Unpacked files
SH256 hash:
6d1b04896d809b3b8041f6faef0aab7622ed84c01667e4570d630c4eae103b5d
MD5 hash:
99bfc6045b556d1aef17f894090008b4
SHA1 hash:
ce9e2940bb150428f107616cc6cdb25825a7824d
Link:
https://www.unpac.me/results/4a72d46a-a606-4130-b555-66a97dfbf9ac/
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/6d1b04896d809b3b8041f6faef0aab7622ed84c01667e4570d630c4eae103b5d

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:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
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: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 6d1b04896d809b3b8041f6faef0aab7622ed84c01667e4570d630c4eae103b5d

(this sample)

  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/74062/

Comments