MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 604f01f3ada881bf4c6b91ab8f584ef59d83206ebcf1084b4095bc275bd5d4e5. 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: 10


Intelligence 10 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 604f01f3ada881bf4c6b91ab8f584ef59d83206ebcf1084b4095bc275bd5d4e5
SHA3-384 hash: 040cfd44de9339cdf972b00eb052e4df2f662ee5167620f7eb263e8b9f7972e85e730b4d47d970f18e19766a5b055e6b
SHA1 hash: ec2f98c434afa7fb41cc9456e21189f87a25d636
MD5 hash: dab38887f5a4fbe6bab7f6c7d6625403
humanhash: undress-kilo-hot-washington
File name:Maersk_Shipping_Line#88447_928383_document.exe
Download: download sample
Signature GuLoader
Create hunting rule
File size:624'664 bytes
First seen:2022-07-12 09:23:37 UTC
Last seen:2022-07-13 13:44:47 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 5f0c714c36e6cc016b3a1f4bc86559e4 (199 x GuLoader, 14 x Formbook, 4 x AgentTesla)
ssdeep 12288:kq7z1tnDi1K9FkJYlgzaRs5+DEOn6rqGRGKz2ny+:57TnDiM9vsh+AO6rc7
TLSH T1DDD4122637A5DC22C8101671CDA8CAF987A1FE01CA21674337D47F5EBE77681AF2E185
TrID 48.8% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
16.4% (.EXE) Win64 Executable (generic) (10523/12/4)
10.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.8% (.EXE) Win16 NE executable (generic) (5038/12/1)
7.0% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon 4bc498327090a828 (4 x Formbook, 2 x GuLoader, 1 x Neshta)
Reporter abuse_ch
Tags:exe GuLoader Maersk signed

Code Signing Certificate

Organisation:HYPOSULPHURIC CLERKDOM
Issuer:HYPOSULPHURIC CLERKDOM
Algorithm:sha256WithRSAEncryption
Valid from:2022-07-12T02:23:38Z
Valid to:2023-07-12T02:23:38Z
Serial number: -6608cfdc96883c05
Thumbprint Algorithm:SHA256
Thumbprint: 6bf7200d2a1b67f2b7eb466c897826be0c3219773d6dd5b56696472f513f0f32
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform


Avatar
abuse_ch
Payload URL:
http://www.buildexknitbd.com/grand/KOdtP131.bin

Intelligence

File Origin
# of uploads :
4
# of downloads :
259
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Maersk_Shipping_Line#88447_928383_document.exe
Verdict:
Malicious activity
Analysis date:
2022-07-12 09:44:30 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/403b8388-90e5-45a5-ab70-f85c68bc66ec

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/286524/
Detection(s):
SecuriteInfo.com.Variant.Tedy.164012.5864.24325.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a window
Creating a file in the %AppData% directory
Creating a file in the %temp% subdirectories
Searching for the window
Delayed reading of the file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
buer overlay packed shell32.dll wacatac
Link:
https://www.filescan.io/uploads/62cd3df381790e51fe5ae496/reports/3351121c-ebf7-4e45-a2a1-7e249b370811/overview
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/461cb499-aa33-48a0-bb95-5c49d866cd75
Result
Threat name:
GuLoader
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
72 / 100
Link:
https://www.joesandbox.com/analysis/1029280
Signature
C2 URLs / IPs found in malware configuration
Initial sample is a PE file and has a suspicious name
Multi AV Scanner detection for submitted file
Tries to detect Any.run
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Yara detected GuLoader
Behaviour
Behavior Graph:
Download SVG
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/604f01f3ada881bf4c6b91ab8f584ef59d83206ebcf1084b4095bc275bd5d4e5/
Threat name:
Win32.Trojan.Shelsy
Create hunting rule
Status:
Malicious
First seen:
2022-07-12 04:55:37 UTC
File Type:
PE (Exe)
Extracted files:
8
AV detection:
21 of 26 (80.77%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=mbhqd45nvca36tdlsgvy6wco6woygidoxtyqqs2asw6cow6v2tsq._file
Verdict:
malicious
Label(s):
cloudeye
Create hunting rule
Result
Malware family:
guloader
Create hunting rule
Score:
  10/10
Tags:
family:guloader discovery downloader persistence suricata
Link:
https://tria.ge/reports/220712-lc51hsefg6/
Behaviour
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops file in Windows directory
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Adds Run key to start application
Checks installed software on the system
Checks QEMU agent file
Loads dropped DLL
Guloader,Cloudeye
suricata: ET MALWARE Remocs 3.x Unencrypted Checkin
suricata: ET MALWARE Remocs 3.x Unencrypted Server Response
Unpacked files
SH256 hash:
c7a20bcaa0197aedddc8e4797bbb33fdf70d980f5e83c203d148121c2106d917
MD5 hash:
792b6f86e296d3904285b2bf67ccd7e0
SHA1 hash:
966b16f84697552747e0ddd19a4ba8ab5083af31
Link:
https://www.unpac.me/results/09a70296-d689-447e-861d-47f817506ca1/
SH256 hash:
443a087ef2441f93f509ad1ee2b10705c97327ff1aa04ffb5e4ce8ec9dabd716
MD5 hash:
a24fa66a8ebd27075963f888e0256fa7
SHA1 hash:
e58c3464c65010405d275d6e2d5e944466379e16
Link:
https://www.unpac.me/results/09a70296-d689-447e-861d-47f817506ca1/
SH256 hash:
604f01f3ada881bf4c6b91ab8f584ef59d83206ebcf1084b4095bc275bd5d4e5
MD5 hash:
dab38887f5a4fbe6bab7f6c7d6625403
SHA1 hash:
ec2f98c434afa7fb41cc9456e21189f87a25d636
Link:
https://www.unpac.me/results/09a70296-d689-447e-861d-47f817506ca1/
Malware family:
GuLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/604f01f3ada8/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.00
Link:
https://yomi.yoroi.company/submissions/604f01f3ada881bf4c6b91ab8f584ef59d83206ebcf1084b4095bc275bd5d4e5

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
Create hunting rule
Author:Arkbird_SOLG
Description:Detect NSIS installer used for Buer loader

File information

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

Malspam

GuLoader

Executable exe 604f01f3ada881bf4c6b91ab8f584ef59d83206ebcf1084b4095bc275bd5d4e5

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2256631/
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/286524/

Comments