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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 964d4b61e395c59cd42622f47548761dea365ae41d02b7451a039c5daf7a7fa8. 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



GuLoader


Vendor detections: 15


Intelligence 15 IOCs YARA 2 File information Comments

SHA256 hash: 964d4b61e395c59cd42622f47548761dea365ae41d02b7451a039c5daf7a7fa8
SHA3-384 hash: 13d374c70efd052f0d8ca45d4404bcc4fdca59361618b1fe86ef8d9e82120b59161a04b9fbb3f7697c28f7118cdd87aa
SHA1 hash: 4ac2216d232598e6f28dd8a996ced71849728214
MD5 hash: 4819870ebd367bb9f04dbac88046b78b
humanhash: thirteen-king-mobile-ten
File name:SecuriteInfo.com.Variant.Jaik.305203.8753.21552
Download: download sample
Signature GuLoader
File size:487'184 bytes
First seen:2026-01-26 08:19:37 UTC
Last seen:2026-02-05 15:38:33 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash ea4e67a31ace1a72683a99b80cf37830 (75 x GuLoader, 71 x Formbook, 54 x Loki)
ssdeep 12288:EcODb7v0o8JvG5UFP+ibiucOTjjjjcjzjcjcjjYXTSfrVsVJOz3Zx6TGwlx:fO4njjjjcjzjcjcjjgTSVGAT6Flx
Threatray 4'340 similar samples on MalwareBazaar
TLSH T17BA4DF87F980D0D2D91C4C7199B3973051BFACB86A898393A348725179331D76B3BEA7
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10522/11/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika pebin
dhash icon d292e8f0f0e8f0f0 (7 x PhantomStealer, 7 x GuLoader, 1 x Formbook)
Reporter SecuriteInfoCom
Tags:exe GuLoader signed

Code Signing Certificate

Organisation:Harmonis
Issuer:Harmonis
Algorithm:sha256WithRSAEncryption
Valid from:2026-01-12T01:03:46Z
Valid to:2027-01-12T01:03:46Z
Serial number: 2921b8eea70ad09129c28844c9538739c0495589
Thumbprint Algorithm:SHA256
Thumbprint: ac3c40c0e8dd3dc8ad3bbd05186381f05fde0a1be920704356f9fa1fa74a97b5
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence


File Origin
# of uploads :
3
# of downloads :
141
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
SecuriteInfo.com.Variant.Jaik.305203.8753.21552
Verdict:
Malicious activity
Analysis date:
2026-01-26 08:22:18 UTC
Tags:
stealer phantom crypto-regex auto-reg ims-api generic telegram

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
93.3%
Tags:
injection uloader virus nsis
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
adaptive-context anti-debug blackhole guloader installer installer installer-heuristic microsoft_visual_cc nsis powershell signed soft-404
Verdict:
Malicious
File Type:
exe x32
First seen:
2026-01-26T03:41:00Z UTC
Last seen:
2026-01-27T15:35:00Z UTC
Hits:
~1000
Detections:
Trojan.NSIS.Makoob.sbd Trojan.NSIS.Makoob.sba Trojan-PSW.Win32.Coins.sb Trojan.Win64.Agent.sb HEUR:Trojan.Win32.GuLoader.gen Trojan-PSW.Win32.Stelega.sb Trojan-PSW.Win32.Stealer.sb Trojan-Dropper.Win32.Injector.sb Trojan-PSW.Win32.Disco.sb Trojan-PSW.MSIL.Stealerium.sb Trojan.Win32.GuLoader.sb Trojan-Downloader.Win32.Minix.sb
Verdict:
inconclusive
YARA:
5 match(es)
Tags:
Executable NSIS Installer PE (Portable Executable) PE File Layout Win 32 Exe x86
Threat name:
Win32.Trojan.Guloader
Status:
Suspicious
First seen:
2026-01-26 06:56:43 UTC
File Type:
PE (Exe)
Extracted files:
35
AV detection:
21 of 38 (55.26%)
Threat level:
  5/5
Result
Malware family:
phantom_stealer
Score:
  10/10
Tags:
family:phantom_stealer collection defense_evasion discovery installer macos persistence spyware stealer
Behaviour
outlook_win_path
outlook_office_path
Uses Task Scheduler COM API
Suspicious use of WriteProcessMemory
Suspicious use of SetWindowsHookEx
Suspicious use of FindShellTrayWindow
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: MapViewOfSection
Suspicious behavior: EnumeratesProcesses
Modifies registry class
Modifies data under HKEY_USERS
Enumerates system info in registry
Checks processor information in registry
NSIS installer
Enumerates physical storage devices
System Location Discovery: System Language Discovery
System Time Discovery
Drops file in Windows directory
Drops file in Program Files directory
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of NtCreateThreadExHideFromDebugger
Looks up external IP address via web service
Contacts third-party web service commonly abused for C2
Adds Run key to start application
Accesses Microsoft Outlook profiles
Reads user/profile data of web browsers
Loads dropped DLL
Executes dropped EXE
Phantom_stealer family
PhantomStealer
Detects PhantomStealer payload
Malware Config
C2 Extraction:
https://api.telegram.org/bot8205340421:AAFaKSVA7EvycFR7y6s4okgAt-QFN2evD58/sendMessage?chat_id=7941708421
Unpacked files
SH256 hash:
964d4b61e395c59cd42622f47548761dea365ae41d02b7451a039c5daf7a7fa8
MD5 hash:
4819870ebd367bb9f04dbac88046b78b
SHA1 hash:
4ac2216d232598e6f28dd8a996ced71849728214
SH256 hash:
269d232712c86983336badb40b9e55e80052d8389ed095ebf9214964d43b6bb1
MD5 hash:
34442e1e0c2870341df55e1b7b3cccdc
SHA1 hash:
99b2fa21aead4b6ccd8ff2f6d3d3453a51d9c70c
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:Ins_NSIS_Buer_Nov_2020_1
Author:Arkbird_SOLG
Description:Detect NSIS installer used for Buer loader
Rule name:PE_Digital_Certificate
Author:albertzsigovits

File information


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

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