MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c9a5e2967baa8cd313f6f069632aeeea9cf53af387cdd9269f591bde86abec2e. 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: c9a5e2967baa8cd313f6f069632aeeea9cf53af387cdd9269f591bde86abec2e
SHA3-384 hash: 4ca65a4fc9416b4f22033531720c2c58110acc0f22ddf5e92e5ed7681779e94bd17c20a32866a99717d709b4ee8964d9
SHA1 hash: 50645511c07f1a4701a9258df7df446b80feb25e
MD5 hash: cf49802b81b27e363e2d9bc67c238f4a
humanhash: music-delaware-beryllium-vermont
File name:default.dat
Download: download sample
Signature Efimer
Create hunting rule
File size:14'322'589 bytes
First seen:2026-07-05 18:52:17 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash dcaf48c1f10b0efa0a4472200f3850ed (644 x Efimer, 60 x BlankGrabber, 23 x SalatStealer)
ssdeep 393216:a4zSQqCZVOrpwptkClIpXMCHWUjXbcuI3/PGTAI:aOqccrpwpTlgXMb8XYH/O7
TLSH T166E633485AD011FDFA73013EDEE1A2D1E550B8A25B32CAEB476057E1DE172E08E3D627
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 71f0e4c4c4e4f070 (4 x Efimer)
Reporter aachum
Tags:ClickFix Efimer exe


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

Intelligence

File Origin
# of uploads :
1
# of downloads :
150
Origin country :
ES ES
Vendor Threat Intelligence
Malware configuration found for:
PyInstaller
Details
Link:
https://research.acce.ciphertechsolutions.com/results/e2599a6a-fe16-48b9-a0a8-63fc661f1573/
Malware family:
n/a
ID:
1
File name:
exe
Verdict:
No threats detected
Analysis date:
2026-07-05 18:52:56 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/3e7aa983-a5aa-479c-a1ab-a0f0e36bdc1c

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/73022/
Detection(s):
SecuriteInfo.com.Variant.Dropper.354.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
92.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6a4aa7f4762b0b26f3d0535f
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/6a4aa7eddeaf8cb224181208/reports/5a74e919-38ea-4609-a832-1f8c5ac4262f/overview
Verdict:
Malicious
Labled as:
Yogi.Generic
Link:
https://www.hybrid-analysis.com/sample/c9a5e2967baa8cd313f6f069632aeeea9cf53af387cdd9269f591bde86abec2e
Verdict:
Malicious
File Type:
exe x64
First seen:
2026-07-05T16:02:00Z UTC
Last seen:
2026-07-07T04:53:00Z 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/c9a5e2967baa8cd313f6f069632aeeea9cf53af387cdd9269f591bde86abec2e/results?tab=lookup
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/76ff8fe7-36c0-4dea-8346-def8dcd07d73
Result
Threat name:
n/a
Detection:
malicious
Classification:
evad
Score:
76 / 100
Link:
https://www.joesandbox.com/analysis/1937604
Signature
Adds a directory exclusion to Windows Defender
Contains functionality to infect the boot sector
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 dnsIp2 2 Behavior Graph ID: 1937604 Sample: default.dat.exe Startdate: 05/07/2026 Architecture: WINDOWS Score: 76 52 www.google.com 2->52 54 mobile-gtalk.l.google.com 2->54 56 android.l.google.com 2->56 60 Multi AV Scanner detection for submitted file 2->60 62 Joe Sandbox ML detected suspicious sample 2->62 64 Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet 2->64 66 Sigma detected: Suspicious Script Execution From Temp Folder 2->66 9 default.dat.exe 31 2->9         started        signatures3 process4 file5 44 C:\Users\user\AppData\...\unicodedata.pyd, PE32+ 9->44 dropped 46 C:\Users\user\AppData\Local\...\select.pyd, PE32+ 9->46 dropped 48 C:\Users\user\AppData\Local\...\python313.dll, PE32+ 9->48 dropped 50 15 other files (none is malicious) 9->50 dropped 70 Contains functionality to infect the boot sector 9->70 72 Adds a directory exclusion to Windows Defender 9->72 74 Found pyInstaller with non standard icon 9->74 13 default.dat.exe 1 9->13         started        signatures6 process7 signatures8 76 Adds a directory exclusion to Windows Defender 13->76 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 process9 signatures10 58 Adds a directory exclusion to Windows Defender 16->58 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 process11 signatures12 68 Loading BitLocker PowerShell Module 30->68
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/c9a5e2967baa8cd313f6f069632aeeea9cf53af387cdd9269f591bde86abec2e
Verdict:
inconclusive
YARA:
5 match(es)
Tags:
Executable PDB Path PE (Portable Executable) PE File Layout Win 64 Exe x64
Link:
https://app.malva.re/file/cf49802b81b27e363e2d9bc67c238f4a
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/c9a5e2967baa8cd313f6f069632aeeea9cf53af387cdd9269f591bde86abec2e/
Verdict:
Malicious
Threat:
Trojan.Python.Agent
Link:
https://tip.neiki.dev/file/c9a5e2967baa8cd313f6f069632aeeea9cf53af387cdd9269f591bde86abec2e
Threat name:
Win64.Trojan.Egairtigado
Create hunting rule
Status:
Malicious
First seen:
2026-07-05 18:53:49 UTC
File Type:
PE+ (Exe)
Extracted files:
482
AV detection:
16 of 38 (42.11%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=zgs6fft3vkgnge7w6buwgkxo5kopkoxtq7g5sju7len55bvl5qxa._file
Result
Malware family:
n/a
Score:
  8/10
Tags:
execution pyarmor pyinstaller
Link:
https://tria.ge/reports/260705-xjanqsax6q/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Loads dropped DLL
Command and Scripting Interpreter: PowerShell
Unpacked files
SH256 hash:
c9a5e2967baa8cd313f6f069632aeeea9cf53af387cdd9269f591bde86abec2e
MD5 hash:
cf49802b81b27e363e2d9bc67c238f4a
SHA1 hash:
50645511c07f1a4701a9258df7df446b80feb25e
Link:
https://www.unpac.me/results/afa61f99-f656-4f4d-be4a-8217313a4601/
SH256 hash:
36585912e5eaf83ba9fea0631534f690ccdc2d7ba91537166fe53e56c221e153
MD5 hash:
862f820c3251e4ca6fc0ac00e4092239
SHA1 hash:
ef96d84b253041b090c243594f90938e9a487a9a
Link:
https://www.unpac.me/results/afa61f99-f656-4f4d-be4a-8217313a4601/
SH256 hash:
7bc49bc267dfa72a139c58010152701141739992bce77fab872bf20177edc657
MD5 hash:
279f5d22dc4f6a4e185d4d3bea3d2dbd
SHA1 hash:
539a0fbcbe2abfb886a2bb6ec7318ba6f73d58f0
Link:
https://www.unpac.me/results/afa61f99-f656-4f4d-be4a-8217313a4601/
SH256 hash:
a5c6a329698490a035133433928d04368ce6285bb91a9d074fc285de4c9a32a4
MD5 hash:
16855ebef31c5b1ebe767f1c617645b3
SHA1 hash:
315521f3a748abfa35cd4d48e8dd09d0556d989b
Link:
https://www.unpac.me/results/afa61f99-f656-4f4d-be4a-8217313a4601/
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/c9a5e2967baa8cd313f6f069632aeeea9cf53af387cdd9269f591bde86abec2e

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 c9a5e2967baa8cd313f6f069632aeeea9cf53af387cdd9269f591bde86abec2e

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3864471/
Cape
Cape
https://www.capesandbox.com/analysis/73022/

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