MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1aadc733fea9ca54a2d34fbee60845b485f8e5741d211487f0f533889e6d0fdb. 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: 1aadc733fea9ca54a2d34fbee60845b485f8e5741d211487f0f533889e6d0fdb
SHA3-384 hash: 98ed477e42f67027d22f08833029353f1a90b891e703bff043ad4bb9bae3c47b33bdad87ddffa3bb702e3b05f9218e4c
SHA1 hash: 32db43405e06fe39cb26ac2cf3502c4555498e24
MD5 hash: f075a2451fe813e7eca812d5d14aaf97
humanhash: mike-november-fifteen-network
File name:default.dat
Download: download sample
Signature Efimer
Create hunting rule
File size:14'270'564 bytes
First seen:2026-07-06 18:52:12 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash dcaf48c1f10b0efa0a4472200f3850ed (164 x Efimer, 60 x BlankGrabber, 22 x NetSupport)
ssdeep 393216:gfJ9OcvbvA+wHbdKz+itMWPXZpXMCHWUjXRscuI3/PGTAI:gfeAb3wHbd47PJpXMb8XR5H/O7
TLSH T172E6335CD6E012E6F9B3903CB9A19289E8B734A64332C5DF4A985F678E571E14C3D30B
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 70f0d0f0f0e0f070 (2 x Efimer)
Reporter aachum
Tags:ClickFix Efimer exe


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

Intelligence

File Origin
# of uploads :
1
# of downloads :
138
Origin country :
ES ES
Vendor Threat Intelligence
Malware configuration found for:
PyInstaller
Details
Link:
https://research.acce.ciphertechsolutions.com/results/21f0a890-f361-4aab-961b-e65336183aca/
Malware family:
n/a
ID:
1
File name:
_1aadc733fea9ca54a2d34fbee60845b485f8e5741d211487f0f533889e6d0fdb.exe
Verdict:
No threats detected
Analysis date:
2026-07-06 18:55:59 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/f8e49688-bb68-4379-83e1-ea1dfa7bd2dc

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/73153/
Detection(s):
SecuriteInfo.com.Variant.Dropper.354.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
94.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6a4bf97c32952f8351d0a78f
Tags:
installer shell sage
Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a file in the %temp% subdirectories
Restart of the analyzed sample
Creating a window
Launching a service
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/6a4bf975b4cc16a49fa27a92/reports/cd2e33ed-3cf4-42c8-960c-ad246e7b9cc9/overview
Verdict:
Malicious
Labled as:
Yogi.Generic
Link:
https://www.hybrid-analysis.com/sample/1aadc733fea9ca54a2d34fbee60845b485f8e5741d211487f0f533889e6d0fdb
Verdict:
Malicious
File Type:
exe x64
First seen:
2026-07-06T16:13:00Z UTC
Last seen:
2026-07-08T08:47:00Z 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/1aadc733fea9ca54a2d34fbee60845b485f8e5741d211487f0f533889e6d0fdb/results?tab=lookup
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/84274492-5647-417e-942f-65edacb1d595
Result
Threat name:
n/a
Detection:
malicious
Classification:
evad
Score:
72 / 100
Link:
https://www.joesandbox.com/analysis/1938130
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: 1938130 Sample: default.dat.exe Startdate: 06/07/2026 Architecture: WINDOWS Score: 72 61 Multi AV Scanner detection for submitted file 2->61 63 Joe Sandbox ML detected suspicious sample 2->63 65 Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet 2->65 67 Sigma detected: Suspicious Script Execution From Temp Folder 2->67 9 default.dat.exe 31 2->9         started        13 svchost.exe 1 1 2->13         started        process3 dnsIp4 49 C:\Users\user\AppData\...\unicodedata.pyd, PE32+ 9->49 dropped 51 C:\Users\user\AppData\Local\...\select.pyd, PE32+ 9->51 dropped 53 C:\Users\user\AppData\Local\...\python313.dll, PE32+ 9->53 dropped 55 15 other files (none is malicious) 9->55 dropped 71 Adds a directory exclusion to Windows Defender 9->71 73 Found pyInstaller with non standard icon 9->73 16 default.dat.exe 1 9->16         started        57 127.0.0.1 unknown unknown 13->57 file5 signatures6 process7 signatures8 59 Adds a directory exclusion to Windows Defender 16->59 19 cmd.exe 1 16->19         started        22 cmd.exe 1 16->22         started        24 cmd.exe 1 16->24         started        26 9 other processes 16->26 process9 signatures10 69 Adds a directory exclusion to Windows Defender 19->69 28 powershell.exe 23 19->28         started        31 conhost.exe 19->31         started        33 powershell.exe 23 22->33         started        35 conhost.exe 22->35         started        37 powershell.exe 23 24->37         started        39 conhost.exe 24->39         started        41 powershell.exe 26->41         started        43 powershell.exe 26->43         started        45 16 other processes 26->45 process11 signatures12 75 Loading BitLocker PowerShell Module 28->75 47 conhost.exe 31->47         started        process13
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/1aadc733fea9ca54a2d34fbee60845b485f8e5741d211487f0f533889e6d0fdb
Gathering data
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/1aadc733fea9ca54a2d34fbee60845b485f8e5741d211487f0f533889e6d0fdb/
Verdict:
Malicious
Threat:
Trojan.Python.Agent
Link:
https://tip.neiki.dev/file/1aadc733fea9ca54a2d34fbee60845b485f8e5741d211487f0f533889e6d0fdb
Threat name:
Win64.Trojan.Egairtigado
Create hunting rule
Status:
Malicious
First seen:
2026-07-06 18:53:44 UTC
File Type:
PE+ (Exe)
Extracted files:
482
AV detection:
18 of 38 (47.37%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=dkw4om76vhffjiwtj67omccfwsc7rzluduqrjb7q6uzyrhtnb7nq._file
Result
Malware family:
n/a
Score:
  8/10
Tags:
adware execution persistence pyarmor pyinstaller spyware
Link:
https://tria.ge/reports/260706-xjdemafx4q/
Behaviour
Checks SCSI registry key(s)
Modifies Internet Explorer settings
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates connected drives
Loads dropped DLL
Boot or Logon Autostart Execution: Active Setup
Command and Scripting Interpreter: PowerShell
Unpacked files
SH256 hash:
1aadc733fea9ca54a2d34fbee60845b485f8e5741d211487f0f533889e6d0fdb
MD5 hash:
f075a2451fe813e7eca812d5d14aaf97
SHA1 hash:
32db43405e06fe39cb26ac2cf3502c4555498e24
Link:
https://www.unpac.me/results/df20c113-8235-4b28-a276-d29df98c0d91/
SH256 hash:
36585912e5eaf83ba9fea0631534f690ccdc2d7ba91537166fe53e56c221e153
MD5 hash:
862f820c3251e4ca6fc0ac00e4092239
SHA1 hash:
ef96d84b253041b090c243594f90938e9a487a9a
Link:
https://www.unpac.me/results/df20c113-8235-4b28-a276-d29df98c0d91/
SH256 hash:
a5c6a329698490a035133433928d04368ce6285bb91a9d074fc285de4c9a32a4
MD5 hash:
16855ebef31c5b1ebe767f1c617645b3
SHA1 hash:
315521f3a748abfa35cd4d48e8dd09d0556d989b
Link:
https://www.unpac.me/results/df20c113-8235-4b28-a276-d29df98c0d91/
SH256 hash:
e5ad43efc2c698228b9e9d4b5e1016020bd7033de5c4f81a8bfea7a6eda1ae50
MD5 hash:
c1f8e38c40cae899496ff8ce3642171c
SHA1 hash:
5b80f628cd4188e089132b9d1a53c8457667b93f
Link:
https://www.unpac.me/results/df20c113-8235-4b28-a276-d29df98c0d91/
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/1aadc733fea9ca54a2d34fbee60845b485f8e5741d211487f0f533889e6d0fdb

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 1aadc733fea9ca54a2d34fbee60845b485f8e5741d211487f0f533889e6d0fdb

(this sample)

  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/73153/
  
URLhaus
https://urlhaus.abuse.ch/url/3864471/

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