MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 0bc71f56b650c93a4f50e11ba41af659c46fba843cd019e2dbb152a536ed714f. 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: 7


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

SHA256 hash: 0bc71f56b650c93a4f50e11ba41af659c46fba843cd019e2dbb152a536ed714f
SHA3-384 hash: 29683aa05c183dfc484058933e60280c57827a3a61e841b1c5c7cbc52a47a2f3308864a16b06d336458d095b23228696
SHA1 hash: 904da862281f6a19155a5710c9bfb26f81485a26
MD5 hash: 0ff0126ed66be4858a161aa773cd9a76
humanhash: mockingbird-white-mango-leopard
File name:default.dat
Download: download sample
Signature Efimer
Create hunting rule
File size:14'322'878 bytes
First seen:2026-07-26 03:52:29 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash dcaf48c1f10b0efa0a4472200f3850ed (521 x Efimer, 60 x BlankGrabber, 23 x SalatStealer)
ssdeep 393216:1gp7tsvr/AAD9Jy9ap2OOXMCHWUjX0cuI3/PGTAI:1gxOz/dD9JyM4xXMb8XhH/O7
TLSH T15BE6331576E001FEDA730239EDE20659F9F1B4B68731C19B1BA88B756A231A0CD3D763
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 d4f8fcbc8cc47130 (5 x Efimer)
Reporter aachum
Tags:ClickFix Efimer exe


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

Intelligence

File Origin
# of uploads :
1
# of downloads :
177
Origin country :
ES ES
Vendor Threat Intelligence
Malware configuration found for:
PyInstaller
Details
Link:
https://research.acce.ciphertechsolutions.com/results/1812385d-4e1b-44a8-b514-aff9247ad6e9/
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/76204/
Detection(s):
SecuriteInfo.com.Variant.Dropper.354.UNOFFICIAL
Create hunting rule

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/6a6584bab58923e139066e14/reports/4b81dd0e-d389-44f4-9d65-786207fd1d4a/overview
Verdict:
Malicious
Labled as:
Yogi.Generic
Link:
https://www.hybrid-analysis.com/sample/0bc71f56b650c93a4f50e11ba41af659c46fba843cd019e2dbb152a536ed714f
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/d060e786-0df1-4473-8e39-97a93d8958cc
Gathering data
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/0bc71f56b650c93a4f50e11ba41af659c46fba843cd019e2dbb152a536ed714f
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/0ff0126ed66be4858a161aa773cd9a76
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/0bc71f56b650c93a4f50e11ba41af659c46fba843cd019e2dbb152a536ed714f/
Gathering data
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=bpdr6vvwkdetut2q4en2igxwlhcg7ouehtibtyw3wfjkknxnofhq._file
Result
Malware family:
n/a
Score:
  8/10
Tags:
execution pyarmor pyinstaller
Link:
https://tria.ge/reports/260726-efwspayvbs/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Executes a command shell one-liner
Loads dropped DLL
Command and Scripting Interpreter: PowerShell
Unpacked files
SH256 hash:
0bc71f56b650c93a4f50e11ba41af659c46fba843cd019e2dbb152a536ed714f
MD5 hash:
0ff0126ed66be4858a161aa773cd9a76
SHA1 hash:
904da862281f6a19155a5710c9bfb26f81485a26
Link:
https://www.unpac.me/results/6e7caf93-3460-434d-9dd6-597113b0e562/
SH256 hash:
36585912e5eaf83ba9fea0631534f690ccdc2d7ba91537166fe53e56c221e153
MD5 hash:
862f820c3251e4ca6fc0ac00e4092239
SHA1 hash:
ef96d84b253041b090c243594f90938e9a487a9a
Link:
https://www.unpac.me/results/6e7caf93-3460-434d-9dd6-597113b0e562/
SH256 hash:
442d5d7ecbd4bb396122aae139d3d05177c85d436e8ac0a8f6107de9d52330dd
MD5 hash:
bffbabf0b8d369688d80d7b959e98897
SHA1 hash:
5311f62238ee47f4a83bd6361df14bb86574a67f
Link:
https://www.unpac.me/results/6e7caf93-3460-434d-9dd6-597113b0e562/
SH256 hash:
a5c6a329698490a035133433928d04368ce6285bb91a9d074fc285de4c9a32a4
MD5 hash:
16855ebef31c5b1ebe767f1c617645b3
SHA1 hash:
315521f3a748abfa35cd4d48e8dd09d0556d989b
Link:
https://www.unpac.me/results/6e7caf93-3460-434d-9dd6-597113b0e562/
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/0bc71f56b650c93a4f50e11ba41af659c46fba843cd019e2dbb152a536ed714f

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 0bc71f56b650c93a4f50e11ba41af659c46fba843cd019e2dbb152a536ed714f

(this sample)

  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/76204/

Comments