MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c8251d1aba99075ce6f8f735b72015c2589e936bcdf544f87c5947324ec8b056. 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


SharkStealer


Vendor detections: 15


Intelligence 15 IOCs YARA 28 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c8251d1aba99075ce6f8f735b72015c2589e936bcdf544f87c5947324ec8b056
SHA3-384 hash: 52a8e28837aa73f52048c5c510c8b62546b4cffd9e3c490b61f253f10ede180783f3023bc6599acaa8ce0690e48dc0c5
SHA1 hash: 0ddc785082805e3236a6c8079a460ca56e3b4db0
MD5 hash: 9d97341b9ccb1e8566d44af8ef9537f9
humanhash: montana-nineteen-robert-december
File name:01MHHVYFRM.msi
Download: download sample
Signature SharkStealer
Create hunting rule
File size:9'723'904 bytes
First seen:2025-09-24 21:03:02 UTC
Last seen:Never
File type:Microsoft Software Installer (MSI) msi
MIME type:application/x-msi
ssdeep 196608:rvZiRdSu3qTHJpFpz4dJQfrreWn0JjSDTV0v2DXO4KRnA:bEdSuaHZNjr3n2jc50v6rK
Threatray 70 similar samples on MalwareBazaar
TLSH T166A633C7CEDAEA2AC277F5F8426E0A3E4D1A8E2243DD175B4584B7EC1573AC041C661E
TrID 88.4% (.MST) Windows SDK Setup Transform script (61000/1/5)
11.5% (.) Generic OLE2 / Multistream Compound (8000/1)
Magika msi
Reporter aachum
Tags:dropped-by-ACRStealer HIjackLoader msi SharkStealer signed

Code Signing Certificate

Organisation:Dactyi
Issuer:Dactyi
Algorithm:sha1WithRSA
Valid from:2018-12-31T23:00:00Z
Valid to:2098-12-31T23:00:00Z
Serial number: -6bdcce764434475ab372acfc5d4915eb
Intelligence: 2 malware samples on MalwareBazaar are signed with this code signing certificate
Thumbprint Algorithm:SHA256
Thumbprint: 5cc212b15931daa65d2e810061f0a5380034b0b0ea6f3d294b61a7fefeac35c7
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform


Avatar
iamaachum
https://mt.tiptopwashbowl.digital/01MHHVYFRM.msi

Intelligence

File Origin
# of uploads :
1
# of downloads :
55
Origin country :
CZ CZ
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/28878/
Verdict:
Malicious
Score:
70%
Link:
https://cyber-fortress.com/docs/result/index.php?id=68d54ab11e4783989051e877
Tags:
spawn
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
anti-debug crypto expired-cert fingerprint installer short-lived-cert signed wix
Link:
https://www.filescan.io/uploads/68d45cbb674d5fd6aa0ba9bb/reports/5d12c270-8fc4-4483-9aa0-20ca9e1163e2/overview
Verdict:
Malicious
Labled as:
Generik.ICQLKOE trojan
Link:
https://www.hybrid-analysis.com/sample/c8251d1aba99075ce6f8f735b72015c2589e936bcdf544f87c5947324ec8b056
Result
Verdict:
MALICIOUS
Link:
https://labs.inquest.net/dfi/sha256/c8251d1aba99075ce6f8f735b72015c2589e936bcdf544f87c5947324ec8b056
Verdict:
Malicious
File Type:
msi
First seen:
2025-09-21T10:06:00Z UTC
Last seen:
2025-09-21T10:06:00Z UTC
Hits:
~100
Detections:
Trojan.Win32.Strab.sb Trojan.Win32.Penguish.sb HEUR:Trojan.Win64.Agent.gen
Link:
https://opentip.kaspersky.com/c8251d1aba99075ce6f8f735b72015c2589e936bcdf544f87c5947324ec8b056/results?tab=lookup
Result
Threat name:
HijackLoader
Create hunting rule
Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1783599
Signature
Antivirus detection for dropped file
Contains functionality to access PhysicalDrive, possible boot sector overwrite
Contains functionality to compare user and computer (likely to detect sandboxes)
Contains functionality to detect virtual machines (IN, VMware)
Contains functionality to infect the boot sector
Found direct / indirect Syscall (likely to bypass EDR)
Found hidden mapped module (file has been removed from disk)
Found malware configuration
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Overwrites code with unconditional jumps - possibly settings hooks in foreign process
Switches to a custom stack to bypass stack traces
Yara detected HijackLoader
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1783599 Sample: 01MHHVYFRM.msi Startdate: 24/09/2025 Architecture: WINDOWS Score: 100 49 x.ss2.us 2->49 51 data-seed-prebsc-2-s1.binance.org 2->51 53 2 other IPs or domains 2->53 67 Found malware configuration 2->67 69 Malicious sample detected (through community Yara rule) 2->69 71 Antivirus detection for dropped file 2->71 73 4 other signatures 2->73 9 msiexec.exe 79 39 2->9         started        12 CybBeac64.exe 2->12         started        15 msiexec.exe 3 2->15         started        signatures3 process4 file5 43 C:\Users\user\AppData\Local\...\cmdres.DLL, PE32+ 9->43 dropped 45 Microsoft.VisualSt...overage.Symbols.dll, PE32+ 9->45 dropped 47 C:\Users\user\AppData\Local\...\CybBeac64.exe, PE32+ 9->47 dropped 17 CybBeac64.exe 6 9->17         started        91 Overwrites code with unconditional jumps - possibly settings hooks in foreign process 12->91 signatures6 process7 file8 31 C:\ProgramData\atkex\cmdres.DLL, PE32+ 17->31 dropped 33 Microsoft.VisualSt...overage.Symbols.dll, PE32+ 17->33 dropped 35 C:\ProgramData\atkex\CybBeac64.exe, PE32+ 17->35 dropped 61 Overwrites code with unconditional jumps - possibly settings hooks in foreign process 17->61 63 Contains functionality to detect virtual machines (IN, VMware) 17->63 65 Found direct / indirect Syscall (likely to bypass EDR) 17->65 21 CybBeac64.exe 7 17->21         started        signatures9 process10 file11 37 C:\Users\user\AppData\Local\...\3D91C2E.tmp, PE32 21->37 dropped 39 C:\Users\user\AppData\...\RipplEmulator64.exe, PE32 21->39 dropped 41 C:\ProgramData\atkex\XPFix.exe, PE32 21->41 dropped 75 Overwrites code with unconditional jumps - possibly settings hooks in foreign process 21->75 77 Found hidden mapped module (file has been removed from disk) 21->77 79 Maps a DLL or memory area into another process 21->79 81 Found direct / indirect Syscall (likely to bypass EDR) 21->81 25 RipplEmulator64.exe 1 5 21->25         started        29 XPFix.exe 21->29         started        signatures12 process13 dnsIp14 55 a8a00b7a27dd309f6.awsglobalaccelerator.com 15.197.198.189, 49725, 8545 TANDEMUS United States 25->55 57 91.242.163.152, 1477, 49728, 49730 OOO-SYSMEDIA-ASRU Russian Federation 25->57 59 2 other IPs or domains 25->59 83 Contains functionality to access PhysicalDrive, possible boot sector overwrite 25->83 85 Contains functionality to infect the boot sector 25->85 87 Switches to a custom stack to bypass stack traces 25->87 89 Contains functionality to compare user and computer (likely to detect sandboxes) 25->89 signatures15
Score:
35%
Verdict:
Susipicious
File Type:
ARCHIVE
Link:
https://malprob.io/report/c8251d1aba99075ce6f8f735b72015c2589e936bcdf544f87c5947324ec8b056
Verdict:
inconclusive
YARA:
4 match(es)
Tags:
CAB:COMPRESSION:LZX Executable Office Document PDB Path PE (Portable Executable) PE File Layout
Link:
https://app.malva.re/file/9d97341b9ccb1e8566d44af8ef9537f9
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/c8251d1aba99075ce6f8f735b72015c2589e936bcdf544f87c5947324ec8b056/
Verdict:
Malicious
Threat:
Family.HIJACKLOADER
Link:
https://tip.neiki.dev/file/c8251d1aba99075ce6f8f735b72015c2589e936bcdf544f87c5947324ec8b056
Threat name:
Win64.Downloader.Rugmi
Create hunting rule
Status:
Malicious
First seen:
2025-09-21 23:17:11 UTC
File Type:
Binary (Archive)
Extracted files:
55
AV detection:
14 of 38 (36.84%)
Threat level:
  3/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=zasr2gv2tedvzzxy6423oiavyjmj5e3lzx2uj6d4lfdtetwiwbla._file
Verdict:
malicious
Label(s):
hijackloader
Create hunting rule
Similar samples:
2d5488f00bdb69c507c308d486032450bb92691800966773acc1928f4077ec1f
SharkStealer
3306b32868590d80dfbcafaba3c6cbbf3514b7b6b4297c41561cec7d769d7b0f
SharkStealer
38c60fd0e51b21b580552430f1ef55b7a41a1c6894ee61edc0707644d6c0b977
SharkStealer
9e05baee59cd27a85f08cf2fa678f54c3bb639f29d4521bfa0319bf174c04dba
SharkStealer
aab194f10b0bf13879177d42e353d4f6e82dd61e530a26dd9b3727d31c0263af
SharkStealer
ad81b2f47eefcdce16dfa85d8d04f5f8b3b619ca31a14273da6773847347bec8
SharkStealer
bcc062030c3615d3f8e42e3a2a0b4410e07cf5c845c72c95b56d41d81bac5f46
SharkStealer
error
SharkStealer
f1051b842f6ba781236e736bcb3a1ed9c10bc2036b6f9d2c43062e0bf7b25bba
SharkStealer
+ 60 additional samples on MalwareBazaar
Result
Malware family:
shark_stealer
Create hunting rule
Score:
  10/10
Tags:
family:hijackloader family:shark_stealer defense_evasion discovery loader persistence privilege_escalation ransomware spyware stealer trojan
Link:
https://tria.ge/reports/250924-zwf3dsdn3y/
Behaviour
Checks SCSI registry key(s)
Modifies system certificate store
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of WriteProcessMemory
Uses Volume Shadow Copy service COM API
Event Triggered Execution: Installer Packages
System Location Discovery: System Language Discovery
Drops file in Windows directory
Executes dropped EXE
Loads dropped DLL
Suspicious use of SetThreadContext
Badlisted process makes network request
Enumerates connected drives
Detects HijackLoader (aka IDAT Loader)
Detects SharkStealer payload
HijackLoader
Hijackloader family
SharkStealer
Shark_stealer family
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/0f56d3a9-0206-4411-be06-6ce6f680cca8
Malware family:
IDATLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/c8251d1aba99/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.

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:command_and_control
Create hunting rule
Author:CD_R0M_
Description:This rule searches for common strings found by malware using C2. Based on a sample used by a Ransomware group
Rule name:CP_AllMal_Detector
Create hunting rule
Author:DiegoAnalytics
Description:CrossPlatform All Malwares Detector: Detect PE, ELF, Mach-O, scripts, archives; overlay, obfuscation, encryption, spoofing, hiding, high entropy, network communication
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:DebuggerCheck__QueryInfo
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerException__ConsoleCtrl
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:dependsonpythonailib
Create hunting rule
Author:Tim Brown
Description:Hunts for dependencies on Python AI libraries
Rule name:DetectEncryptedVariants
Create hunting rule
Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
Rule name:DetectGoMethodSignatures
Create hunting rule
Author:Wyatt Tauber
Description:Detects Go method signatures in unpacked Go binaries
Rule name:Detect_Go_GOMAXPROCS
Create hunting rule
Author:Obscurity Labs LLC
Description:Detects Go binaries by the presence of runtime.GOMAXPROCS in the runtime metadata
Rule name:FreddyBearDropper
Create hunting rule
Author:Dwarozh Hoshiar
Description:Freddy Bear Dropper is dropping a malware through base63 encoded powershell scrip.
Rule name:GoBinTest
Create hunting rule
Rule name:golang
Create hunting rule
Rule name:Golangmalware
Create hunting rule
Author:Dhanunjaya
Description:Malware in Golang
Rule name:golang_binary_string
Create hunting rule
Description:Golang strings present
Rule name:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:HeavensGate
Create hunting rule
Author:kevoreilly
Description:Heaven's Gate: Switch from 32-bit to 64-mode
Rule name:HiveRansomware
Create hunting rule
Author:Dhanunjaya
Description:Yara Rule To Detect Hive V4 Ransomware
Rule name:identity_golang
Create hunting rule
Author:Eric Yocam
Description:find Golang malware
Rule name:malware_shellcode_hash
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect shellcode api hash value
Rule name:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:ProgramLanguage_Golang
Create hunting rule
Author:albertzsigovits
Description:Application written in Golang programming language
Rule name:RANSOMWARE
Create hunting rule
Author:ToroGuitar
Rule name:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SEH__vectored
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:SHA512_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA384/SHA512 constants
Rule name:ThreadControl__Context
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

File information

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

Web download

SharkStealer

Microsoft Software Installer (MSI) msi c8251d1aba99075ce6f8f735b72015c2589e936bcdf544f87c5947324ec8b056

(this sample)

  
Link
https://tria.ge/250924-zqq1eatsev/behavioral2
  
Dropped by
ACRStealer
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/28878/

Comments