MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8bfb283f8c52d7ff452c20957aaf939de6235b138771415cafc75851bc08ed7d. 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


OffLoader


Vendor detections: 13


Intelligence 13 IOCs YARA 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8bfb283f8c52d7ff452c20957aaf939de6235b138771415cafc75851bc08ed7d
SHA3-384 hash: 00371c1dc259bea2d6fe206f49365ee6cd4c1ebf9c009b56fa58467ed06fd9db2c553baa7d253768b995d6e0080951cc
SHA1 hash: 603dbe7c87e1f36628f8ebe232822eded37f972c
MD5 hash: c77e78da19a7322ed5c197779a638002
humanhash: monkey-april-iowa-finch
File name:file
Download: download sample
Signature OffLoader
Create hunting rule
File size:5'763'462 bytes
First seen:2026-03-30 22:27:18 UTC
Last seen:2026-03-31 06:21:10 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash ac4ded70f85ef621e5f8917b250855be (68 x OffLoader, 5 x Tofsee, 5 x Gh0stRAT)
ssdeep 98304:oN66UEKTfxPWCIYlzi5hxZWPjUvTYZveJl3JcZitqXsPC:MUEKjxPWCIWzirbWPjuTsGJl3MXr
Threatray 290 similar samples on MalwareBazaar
TLSH T101460233B24A633EE07E163B59B6A1605D3B7A21A51F8C5696E44C4CDF7E0A01E3F613
TrID 63.8% (.EXE) Inno Setup installer (107240/4/30)
24.7% (.EXE) Win32 EXE PECompact compressed (generic) (41569/9/9)
3.8% (.EXE) Win64 Executable (generic) (6522/11/2)
2.6% (.EXE) Win32 Executable (generic) (4504/4/1)
1.2% (.EXE) Win16/32 Executable Delphi generic (2072/23)
Magika pebin
dhash icon 00fee4dcdcd48091 (3 x OffLoader)
Reporter Bitsight
Tags:a dropped-by-gcleaner exe MIX3.file OffLoader


Avatar
Bitsight
url: http://158.94.209.95/service

Intelligence

File Origin
# of uploads :
8
# of downloads :
132
Origin country :
US US
Vendor Threat Intelligence
Gathering data
Malware family:
vidar
Create hunting rule
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2026-03-30 17:51:57 UTC
Tags:
gcleaner loader auto generic auto-startup salatstealer stealer vidar stealc inno installer anti-evasion delphi golang auto-reg rust upx susp-powershell telegram ms-smartcard sainbox rat api-base64 botnet kamasers udados auto-sch santastealer
Link:
https://app.any.run/tasks/ae765324-005d-4d4f-8c63-8b5b138c36c1

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/59813/
Verdict:
Malicious
Score:
97.4%
Link:
https://cyber-fortress.com/docs/result/index.php?id=69caf9083a18a6e1ddefe054
Tags:
injection dropper virus
Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a file in the %temp% subdirectories
Creating a window
Creating a process from a recently created file
Сreating synchronization primitives
Searching for synchronization primitives
DNS request
Using the Windows Management Instrumentation requests
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-debug embarcadero_delphi expand expired-cert fingerprint inno installer installer installer-heuristic invalid-signature lolbin packed signed soft-404
Link:
https://www.filescan.io/uploads/69caf9042346b9da57b1b2e5/reports/119017e2-2ccd-4d72-9c69-5922241adbdd/overview
Verdict:
Malicious
Labled as:
TrojanDldr.OffLoader.gen
Link:
https://www.hybrid-analysis.com/sample/8bfb283f8c52d7ff452c20957aaf939de6235b138771415cafc75851bc08ed7d
Verdict:
Malicious
File Type:
exe x32
First seen:
2026-04-01T07:57:00Z UTC
Last seen:
2026-04-01T15:53:00Z UTC
Hits:
~10
Detections:
Trojan-Dropper.Win32.Agent.tkdinv
Link:
https://opentip.kaspersky.com/8bfb283f8c52d7ff452c20957aaf939de6235b138771415cafc75851bc08ed7d/results?tab=lookup
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/40be490d-526e-430e-b73a-8b36d227cd71
Score:
58%
Verdict:
Susipicious
File Type:
PE
Link:
https://malprob.io/report/8bfb283f8c52d7ff452c20957aaf939de6235b138771415cafc75851bc08ed7d
Verdict:
inconclusive
YARA:
4 match(es)
Tags:
Executable PE (Portable Executable) PE File Layout Win 32 Exe x86
Link:
https://app.malva.re/file/c77e78da19a7322ed5c197779a638002
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/8bfb283f8c52d7ff452c20957aaf939de6235b138771415cafc75851bc08ed7d/
Verdict:
Malicious
Threat:
Family.UDADOS
Link:
https://tip.neiki.dev/file/8bfb283f8c52d7ff452c20957aaf939de6235b138771415cafc75851bc08ed7d
Threat name:
Win32.Trojan.Qwexlafiba
Create hunting rule
Status:
Malicious
First seen:
2026-03-30 18:10:14 UTC
File Type:
PE (Exe)
Extracted files:
4
AV detection:
14 of 24 (58.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=rp5sqp4mkll76rjmeckxvl4ttxtcgwytq5yucxfpy5mfdpai5v6q._file
Verdict:
malicious
Label(s):
shellcode_loader_008
Create hunting rule
Similar samples:
0b7a2e642b75da6700daafe701f887522e92a4da4d9c6841bf5cb1c182246512
OffLoader
102efcb7d66f1fa608c7433ba29a0ccd907dd38db19a49ac3c06f42b694a37b3
OffLoader
212e16dba635e5077e505ffab91b94354d99008d255266f0f5296605650f47c1
OffLoader
2cbf6f453f271cf0665934cdfb7595d2e2c5d21b68142b92c0a8aff4e24631fc
OffLoader
3fa4070b5621914517362049ef967b47d8039fe30d5cffc95341ed489247a426
OffLoader
d3556eedaf989aa338fff1ba17d14e9b070cf13f1ff0332cff98ea7c45c736cf
OffLoader
eb2df1ba4f3b1a8681594ddcfe605c38749fd6e723bbe5c60dc885d03da0f578
OffLoader
error
OffLoader
+ 280 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  7/10
Tags:
defense_evasion discovery installer privilege_escalation upx
Link:
https://tria.ge/reports/260330-2ds1caat4r/
Behaviour
Suspicious use of WriteProcessMemory
Inno Setup is an open-source installation builder for Windows applications.
Access Token Manipulation: Create Process with Token
System Location Discovery: System Language Discovery
UPX packed file
ACProtect 1.3x - 1.4x DLL software
Executes dropped EXE
Loads dropped DLL
Unpacked files
SH256 hash:
8bfb283f8c52d7ff452c20957aaf939de6235b138771415cafc75851bc08ed7d
MD5 hash:
c77e78da19a7322ed5c197779a638002
SHA1 hash:
603dbe7c87e1f36628f8ebe232822eded37f972c
Link:
https://www.unpac.me/results/7c6b1e11-1199-4c1c-aedc-c2d46b4b0ede/
SH256 hash:
227f3a1f9dec4a4c6b2885cddc424c602a56b9005851aab0da2d896bc5d54fee
MD5 hash:
540df55608ada84370b6e7a998ca5432
SHA1 hash:
859a00daffccb794d5d3e8f6584c58a651ac3acf
Link:
https://www.unpac.me/results/7c6b1e11-1199-4c1c-aedc-c2d46b4b0ede/
SH256 hash:
4cf8bbfb2096b41369921d20a5656fec7443946835f4c58ac136588c390396e4
MD5 hash:
8533b0752420129d294049a93e6ea75f
SHA1 hash:
d9b55b27f386091ea57320629dae90475ad07442
Link:
https://www.unpac.me/results/7c6b1e11-1199-4c1c-aedc-c2d46b4b0ede/
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/8bfb283f8c52d7ff452c20957aaf939de6235b138771415cafc75851bc08ed7d

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:Borland
Create hunting rule
Author:malware-lu
Rule name:CP_Script_Inject_Detector
Create hunting rule
Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
Rule name:pe_detect_tls_callbacks
Create hunting rule
Rule name:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:SHA512_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA384/SHA512 constants
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns
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/

File information

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

Web download

OffLoader

Executable exe 8bfb283f8c52d7ff452c20957aaf939de6235b138771415cafc75851bc08ed7d

(this sample)

  
Dropped by
Gcleaner
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/59813/

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