MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b028ced984ab94ba551b890e2b55645509a1bfd4f2970b592ada728de261a379. 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: 13


Intelligence 13 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b028ced984ab94ba551b890e2b55645509a1bfd4f2970b592ada728de261a379
SHA3-384 hash: f87c078ecae9cb91c8a420488ffc56b8ce1bac5962c12f37e6056f4a939e643f595076070b705c1638e3d0d6fec876ca
SHA1 hash: cd616dbf86a53beca504e72e9096ed45903794f4
MD5 hash: 63abea7feba39deb21bcbefd7926f00e
humanhash: missouri-massachusetts-white-green
File name:b028ced984ab94ba551b890e2b55645509a1bfd4f2970b592ada728de261a379
Download: download sample
Signature GuLoader
Create hunting rule
File size:570'384 bytes
First seen:2023-07-05 11:53:11 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash b34f154ec913d2d2c435cbd644e91687 (525 x GuLoader, 110 x RemcosRAT, 80 x EpsilonStealer)
ssdeep 12288:cKxSm84N/v0DdLFtR1RVSz6//Ki74XMDwTfAIeRKeXqEH:V84VvcdhDd0wKXMEeR/aw
Threatray 991 similar samples on MalwareBazaar
TLSH T100C42306AA75E26BFDF32B350E76B7876D392D2411D31B57075027866D32388BE2A10F
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10523/12/4)
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) (4505/5/1)
File icon (PE):PE icon
dhash icon e9d998dccaebdccc (3 x GuLoader, 1 x AZORult)
Reporter adrian__luca
Tags:exe GuLoader signed

Code Signing Certificate

Organisation:
Issuer:
Algorithm:sha256WithRSAEncryption
Valid from:2022-10-28T08:43:08Z
Valid to:2025-10-27T08:43:08Z
Serial number: 11dc462c7facc1ecb46688e9bfe37e66ec7e5afc
Thumbprint Algorithm:SHA256
Thumbprint: c227355b189036bf3d19f8e4c8350777e973b0e9a831243d069a2d4a1914f20c
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin
# of uploads :
1
# of downloads :
300
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
b028ced984ab94ba551b890e2b55645509a1bfd4f2970b592ada728de261a379
Verdict:
Suspicious activity
Analysis date:
2023-07-05 11:52:08 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/e613cb85-36f9-40c6-b65f-d11a6e0f11ae

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/407553/
Detection(s):
SecuriteInfo.com.Trojan.GenericKD.67387617.19718.6907.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% subdirectories
Searching for the window
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/95619/overview
Behaviour
MalwareBazaar
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
control lolbin overlay packed shell32
Link:
https://www.filescan.io/uploads/64a559dadfc53aa652de9ad8/reports/2a60a0ce-2896-4c86-9d6f-7b6f41e6266c/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/b028ced984ab94ba551b890e2b55645509a1bfd4f2970b592ada728de261a379
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/112085c5-6ebf-424b-b074-dfaef1f7f438
Result
Threat name:
GuLoader, FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1267197
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Modifies the context of a thread in another process (thread injection)
Modifies the prolog of user mode functions (user mode inline hooks)
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Snort IDS alert for network traffic
System process connects to network (likely due to code injection or exploit)
Tries to detect Any.run
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Yara detected FormBook
Yara detected GuLoader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1267197 Sample: hi38VYWujz.exe Startdate: 05/07/2023 Architecture: WINDOWS Score: 100 32 www.nisekopiraestate.net 2->32 34 www.largesxiaothose.com 2->34 36 21 other IPs or domains 2->36 54 Snort IDS alert for network traffic 2->54 56 Found malware configuration 2->56 58 Malicious sample detected (through community Yara rule) 2->58 60 8 other signatures 2->60 11 hi38VYWujz.exe 4 41 2->11         started        signatures3 process4 file5 30 C:\Users\user\AppData\Local\...\System.dll, PE32 11->30 dropped 68 Tries to detect Any.run 11->68 15 hi38VYWujz.exe 6 11->15         started        signatures6 process7 dnsIp8 44 34.138.169.8, 50281, 80 ATGS-MMD-ASUS United States 15->44 46 Modifies the context of a thread in another process (thread injection) 15->46 48 Tries to detect Any.run 15->48 50 Maps a DLL or memory area into another process 15->50 52 2 other signatures 15->52 19 explorer.exe 5 1 15->19 injected signatures9 process10 dnsIp11 38 www.2004256.com 160.124.149.176, 50295, 80 POWERLINE-AS-APPOWERLINEDATACENTERHK South Africa 19->38 40 www.crossdressersespana.com 217.160.0.102, 50290, 80 ONEANDONE-ASBrauerstrasse48DE Germany 19->40 42 11 other IPs or domains 19->42 62 System process connects to network (likely due to code injection or exploit) 19->62 23 cscript.exe 19->23         started        signatures12 process13 signatures14 64 Modifies the context of a thread in another process (thread injection) 23->64 66 Maps a DLL or memory area into another process 23->66 26 cmd.exe 1 23->26         started        process15 process16 28 conhost.exe 26->28         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b028ced984ab94ba551b890e2b55645509a1bfd4f2970b592ada728de261a379/
Threat name:
Win32.Trojan.Leonem
Create hunting rule
Status:
Malicious
First seen:
2023-06-05 07:13:00 UTC
File Type:
PE (Exe)
Extracted files:
5
AV detection:
19 of 38 (50.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=waum5wmevokluvi3rehcwvlekue2dp6u6klqwwjk3jzi3ytbun4q._file
Verdict:
malicious
Label(s):
cloudeye
Create hunting rule
Similar samples:
0a80ba418f561098477e18cc42ddfc31796b2be3166ff6c99967b98388fe4826
GuLoader
22921908f60799e10819fbf874d0f4509cd0c68f9f59efa401d78ebc9099c9cc
GuLoader
24cebe5631047fe2681c97e1c582fd27cfa9520e431e5212db55cd1b14b3afba
GuLoader
4e78f6957f4c8c0f56a9b49e139342b1df7b1dc05518d96e776aa687a80f8c58
GuLoader
7f1daec3a9d2f1bc2a93c66e21256929e0e4a0a5294f828508696386ec27ff4f
GuLoader
878d710875b07ec61bef0b198ba67bf81ad0730a3a483d5762cd18e13fb4b525
GuLoader
998d28a2c59b92b100d6f8aab0e688fd70b18426b6c05e6b95bf9cbaa71b1f1a
GuLoader
dbb02fdfea2855cb95d3a6a2668fd5392b9d997200277d98fb758db781880523
GuLoader
+ 981 additional samples on MalwareBazaar
Result
Malware family:
guloader
Create hunting rule
Score:
  10/10
Tags:
family:formbook family:guloader campaign:be53 discovery downloader rat spyware stealer trojan
Link:
https://tria.ge/reports/230705-n2vl7ade7z/
Behaviour
Enumerates physical storage devices
Checks installed software on the system
Loads dropped DLL
Formbook payload
Formbook
Guloader,Cloudeye
Unpacked files
SH256 hash:
f004c568d305cd95edbd704166fcd2849d395b595dff814bcc2012693527ac37
MD5 hash:
8b3830b9dbf87f84ddd3b26645fed3a0
SHA1 hash:
223bef1f19e644a610a0877d01eadc9e28299509
Link:
https://www.unpac.me/results/6226ec0b-43f6-42f2-869f-f41314b11b75/
SH256 hash:
b028ced984ab94ba551b890e2b55645509a1bfd4f2970b592ada728de261a379
MD5 hash:
63abea7feba39deb21bcbefd7926f00e
SHA1 hash:
cd616dbf86a53beca504e72e9096ed45903794f4
Link:
https://www.unpac.me/results/6226ec0b-43f6-42f2-869f-f41314b11b75/
Malware family:
GuLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/b028ced984ab/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
GuLoader
Score:
0.90
Link:
https://yomi.yoroi.company/submissions/b028ced984ab94ba551b890e2b55645509a1bfd4f2970b592ada728de261a379

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:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:PE_Potentially_Signed_Digital_Certificate
Create hunting rule
Author:albertzsigovits

File information

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

Cape
Cape
https://www.capesandbox.com/analysis/407553/

Comments