MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 600d4f1ca00a93e7e684c9b7efa436f09ef7f8edab035a9a7d06b2519fc1e0c1. 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: 17


Intelligence 17 IOCs YARA 24 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 600d4f1ca00a93e7e684c9b7efa436f09ef7f8edab035a9a7d06b2519fc1e0c1
SHA3-384 hash: 174fc58d9b7da11c6eb2af50c2a3f4345b9faab728476608adb3c7e3865b771ed4f280af8ba806f85d7e19568587ad84
SHA1 hash: ba8065c9a5f88892fa9c80b267ea93ed7982d7ef
MD5 hash: d3361c4dc0fe16054902f8dbd23a2332
humanhash: timing-monkey-berlin-uniform
File name:GARPE (339) LISTADO DE FACTURAS PENDIENTES DE PAGO.pdf.exe
Download: download sample
Signature GuLoader
Create hunting rule
File size:173'648 bytes
First seen:2026-05-29 08:06:32 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash e2f3f8ec66b7e1900c37978aca89d3c5 (23 x GuLoader, 6 x RemcosRAT, 4 x AgentTesla)
ssdeep 3072:buL3hi8lMcxV66ziJR5dA6TIziPrT6PM6ErqjJTtQ2fQtBtLtV:b0hv5V6fRA6TI+yPt+qjw2fKjV
Threatray 2'480 similar samples on MalwareBazaar
TLSH T18704E0A57150C877C4D206B018BA82F5DBB79E981061EB432F513E9FBC36AB6D91F243
TrID 50.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
10.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
10.5% (.EXE) Win64 Executable (generic) (6522/11/2)
8.1% (.EXE) Win16 NE executable (generic) (5038/12/1)
7.2% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika pebin
dhash icon d022d8c8f28f80c0 (38 x GuLoader, 12 x VIPKeylogger, 6 x Formbook)
Reporter lowmal3
Tags:exe GuLoader signed

Code Signing Certificate

Organisation:Benitier
Issuer:Benitier
Algorithm:sha256WithRSAEncryption
Valid from:2026-05-03T04:14:51Z
Valid to:2027-05-03T04:14:51Z
Serial number: 1912f90b2189928bb64d4ff9c09d591d29a6fabb
Thumbprint Algorithm:SHA256
Thumbprint: ae1f1c38089487cb78d1052122446baad7826ca02798195380d682b29e0186ce
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin
# of uploads :
1
# of downloads :
158
Origin country :
DE DE
Vendor Threat Intelligence
Malware configuration found for:
NSIS
Details
Link:
https://research.acce.ciphertechsolutions.com/results/0bb29085-6843-4400-9d09-aa3771eacf99/
Malware family:
formbook
Create hunting rule
ID:
1
File name:
_600d4f1ca00a93e7e684c9b7efa436f09ef7f8edab035a9a7d06b2519fc1e0c1.exe
Verdict:
Malicious activity
Analysis date:
2026-05-29 08:08:45 UTC
Tags:
formbook xloader
Link:
https://app.any.run/tasks/07516440-0e40-4b59-aa38-0b911e2dbb47

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Guloader
Create hunting rule
Link:
https://www.capesandbox.com/analysis/68389/
Detection(s):
SecuriteInfo.com.FileRepMalware.77174442.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
91.7%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6a19491133dfa243d40abfab
Tags:
underscore injection obfusc crypt
Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a file
Delayed reading of the file
Unauthorized injection to a recently created process
Restart of the analyzed sample
DNS request
Connection attempt
Sending a custom TCP request
Sending an HTTP GET request
Сreating synchronization primitives
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
adaptive-context anti-debug evasive installer installer installer-heuristic masquerade microsoft_visual_cc nsis reconnaissance signed
Link:
https://www.filescan.io/uploads/6a19491246e44aecc0c345a1/reports/34734ea2-6672-451a-a1a4-0ed4987c45c4/overview
Verdict:
Malicious
Labled as:
Injector.IGAZ
Link:
https://www.hybrid-analysis.com/sample/600d4f1ca00a93e7e684c9b7efa436f09ef7f8edab035a9a7d06b2519fc1e0c1
Verdict:
Malicious
File Type:
exe x32
First seen:
2026-05-29T03:25:00Z UTC
Last seen:
2026-05-30T18:43:00Z UTC
Hits:
~1000
Detections:
Trojan.Win32.Guloader.sb Trojan.NSIS.Makoob.sba Trojan-Downloader.Win32.Minix.sb VHO:Trojan-Downloader.Win32.Minix.gen Trojan-Downloader.Win32.Minix.ctn PDM:Trojan.Win32.Generic PDM:Trojan.Win32.Badex.d
Link:
https://opentip.kaspersky.com/600d4f1ca00a93e7e684c9b7efa436f09ef7f8edab035a9a7d06b2519fc1e0c1/results?tab=lookup
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/75bfef77-dfa9-44a0-8d50-b00cc5d0d7ae
Result
Threat name:
FormBook, GuLoader
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1920182
Signature
AI detected suspicious PE digital signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
Found direct / indirect Syscall (likely to bypass EDR)
Hides threads from debuggers
Initial sample is a PE file and has a suspicious name
Maps a DLL or memory area into another process
Modifies the context of a thread in another process (thread injection)
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sigma detected: Suspicious Double Extension File Execution
Suricata IDS alerts for network traffic
Switches to a custom stack to bypass stack traces
Tries to detect virtualization through RDTSC time measurements
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Unusual module load detection (module proxying)
Uses an obfuscated file name to hide its real file extension (double extension)
Yara detected FormBook
Yara detected GuLoader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1920182 Sample: GARPE (339) LISTADO DE FACT... Startdate: 29/05/2026 Architecture: WINDOWS Score: 100 39 www.wellog.xyz 2->39 41 www.trainefy.app 2->41 43 27 other IPs or domains 2->43 61 Suricata IDS alerts for network traffic 2->61 63 Antivirus detection for URL or domain 2->63 65 Antivirus / Scanner detection for submitted sample 2->65 69 10 other signatures 2->69 11 GARPE (339) LISTADO DE FACTURAS PENDIENTES DE PAGO.pdf.exe 32 2->11         started        signatures3 67 Performs DNS queries to domains with low reputation 39->67 process4 file5 37 C:\Users\user\AppData\Local\...\System.dll, PE32 11->37 dropped 79 Hides threads from debuggers 11->79 81 Found direct / indirect Syscall (likely to bypass EDR) 11->81 15 GARPE (339) LISTADO DE FACTURAS PENDIENTES DE PAGO.pdf.exe 6 11->15         started        19 GARPE (339) LISTADO DE FACTURAS PENDIENTES DE PAGO.pdf.exe 11->19         started        signatures6 process7 dnsIp8 51 drive.usercontent.google.com 142.250.114.132, 443, 49721 GOOGLE-GoogleLLCUS United States 15->51 53 drive.google.com 142.251.186.100, 443, 49720 GOOGLE-GoogleLLCUS United States 15->53 55 Maps a DLL or memory area into another process 15->55 57 Hides threads from debuggers 15->57 59 Found direct / indirect Syscall (likely to bypass EDR) 15->59 21 ItOLkKzu.exe 15->21 injected 23 GARPE (339) LISTADO DE FACTURAS PENDIENTES DE PAGO.pdf.exe 15->23         started        signatures9 process10 process11 25 find.exe 13 21->25         started        signatures12 71 Tries to steal Mail credentials (via file / registry access) 25->71 73 Tries to harvest and steal browser information (history, passwords, etc) 25->73 75 Modifies the context of a thread in another process (thread injection) 25->75 77 4 other signatures 25->77 28 QyWPgFHwAvn.exe 25->28 injected 31 chrome.exe 25->31         started        33 firefox.exe 25->33         started        process13 dnsIp14 45 sofuc.ci 164.160.35.251, 49773, 49774, 49775 VEONECI Cte dIvoire 28->45 47 sjans.ca 108.167.158.166, 49741, 49742, 49743 ORACLE-BMC-31898-OracleCorporationUS United States 28->47 49 11 other IPs or domains 28->49 35 WerFault.exe 4 31->35         started        process15
Score:
96%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/600d4f1ca00a93e7e684c9b7efa436f09ef7f8edab035a9a7d06b2519fc1e0c1
Gathering data
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/600d4f1ca00a93e7e684c9b7efa436f09ef7f8edab035a9a7d06b2519fc1e0c1/
Verdict:
Malicious
Threat:
Family.FORMBOOK
Link:
https://tip.neiki.dev/file/600d4f1ca00a93e7e684c9b7efa436f09ef7f8edab035a9a7d06b2519fc1e0c1
Threat name:
Win32.Trojan.Generic
Create hunting rule
Status:
Suspicious
First seen:
2026-05-29 08:07:46 UTC
File Type:
PE (Exe)
Extracted files:
7
AV detection:
15 of 24 (62.50%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=magu6hfabkj6pzuezg367jbw6cppp6hnvmbvvgt5a2zfdh6b4daq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
269c04323cbd684de4b0edbb85cba6288444b24348476272ef9d0b167b7debeb
GuLoader
48397dd0a53c9306920e12fae76d6527c8c64746b2932ec0b652bf7319f6a33d
GuLoader
5aa4328001eb57a54a716ba3c7f0fa7f6b8c390828ea8b33a3c85dfb2838a512
GuLoader
82ba586870ddf21da64398098ac654ae92f389969087698b906d4efe54c6489c
GuLoader
8d126dd8b90ef12045e9576a5b28d796c9edbe522789333572210397519ef521
GuLoader
a57580c54c2f959acf8f5207dc07a74f03be4d8598e843b0a5b05f93cc95c9df
GuLoader
a5c49d651b1c7d9fe3b4a4fdb7330fce4d4edd14f470ee5bcbad446645b1af2e
GuLoader
error
GuLoader
f0827019d570ad314a99dd69590b0c83639c60b1dcac77d708cd6d4959383757
GuLoader
f424bb11bb0e71134361f14d3d698933095f8d464d710eb12c131652bbda5164
GuLoader
fdfac85d4b1e626b1ef7645afd5ddc84ed619d705a9b87b6d8e3560fa295a57e
GuLoader
+ 2'470 additional samples on MalwareBazaar
Result
Malware family:
guloader
Create hunting rule
Score:
  10/10
Tags:
family:formbook family:guloader discovery downloader installer rat spyware stealer trojan
Link:
https://tria.ge/reports/260529-jzrqase16k/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Contacts third-party web service commonly abused for C2
Loads dropped DLL
Family: Formbook
Family: Guloader,Cloudeye
Formbook payload
Unpacked files
SH256 hash:
600d4f1ca00a93e7e684c9b7efa436f09ef7f8edab035a9a7d06b2519fc1e0c1
MD5 hash:
d3361c4dc0fe16054902f8dbd23a2332
SHA1 hash:
ba8065c9a5f88892fa9c80b267ea93ed7982d7ef
Link:
https://www.unpac.me/results/29286cab-f3b7-4346-8b42-4a4c1369a1d6/
SH256 hash:
381ce74fe2c93bd7f31faeb05bd223b25354a03b6ac3098145f5a943272c4c02
MD5 hash:
f3fdb8089ad2271be558053c4f69f0bd
SHA1 hash:
28656faf1d3679f8669938cf0be4735109ccad92
Link:
https://www.unpac.me/results/29286cab-f3b7-4346-8b42-4a4c1369a1d6/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/600d4f1ca00a/report/overview.html
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/600d4f1ca00a93e7e684c9b7efa436f09ef7f8edab035a9a7d06b2519fc1e0c1

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: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__GlobalFlags
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__QueryInfo
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Active
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Thread
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DetectEncryptedVariants
Create hunting rule
Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
Rule name:dgaagas
Create hunting rule
Author:Harshit
Description:Uses certutil.exe to download a file named test.txt
Rule name:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:Ins_NSIS_Buer_Nov_2020_1
Create hunting rule
Author:Arkbird_SOLG
Description:Detect NSIS installer used for Buer loader
Rule name:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:pe_no_import_table
Create hunting rule
Description:Detect pe file that no import table
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:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns
Rule name:TH_Win_ETW_Bypass_2025_CYFARE
Create hunting rule
Author:CYFARE
Description:Windows ETW Bypass Detection Rule - 2025
Reference:https://cyfare.net/
Rule name:VECT_Ransomware
Create hunting rule
Author:Mustafa Bakhit
Description:Detects activity associated with VECT ransomware. This includes registry modifications and deletions, execution of system and defense-evasion commands, suspicious API usage, mutex creation, file and memory manipulation, ransomware note generation, anti-debugging and anti-analysis techniques, and embedded cryptographic constants (SHA256) characteristic of this malware family. Designed for threat intelligence and malware detection environments.

File information

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

Malspam

GuLoader

Executable exe 600d4f1ca00a93e7e684c9b7efa436f09ef7f8edab035a9a7d06b2519fc1e0c1

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/68389/

Comments