MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d9646a5d9e2ac0eb2a28dfd33d900d0b7559d4879854fc454c74ab9f59ea934f. 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 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: d9646a5d9e2ac0eb2a28dfd33d900d0b7559d4879854fc454c74ab9f59ea934f
SHA3-384 hash: 32c807ba492a4e2516784b8e0fcf8622a9e0f35c4d1a2ea6d6b6d71c428cab38cf2faa5a0fb0cc937a0dcd73626fe397
SHA1 hash: cc9e81ae0ec9ddd7c14372ff3a2f3fb753ceb7c6
MD5 hash: e6423276771b55ea6c6fe28880a9a31d
humanhash: beryllium-orange-artist-india
File name:MLJ.exe
Download: download sample
Signature GuLoader
Create hunting rule
File size:110'592 bytes
First seen:2021-06-07 13:03:51 UTC
Last seen:2021-06-07 13:52:50 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 20511f60b3c62ae145d60c4c066b22a5 (3 x GuLoader, 1 x RemcosRAT)
ssdeep 3072:0qvw04zMT7ZXS3HdEnpTXnxWqEfGBpQ2JyB92mTZP9dsjEhlNX+iAWZJ5W+1VhNn:pvwtzMT7ZXaHdo1XnxWqEfGBpQ2JyB9z
Threatray 1'765 similar samples on MalwareBazaar
TLSH A3B31943DB262D38CD892DF03477F9522325FC21452B1E2F3258DAF92BA1663B59970B
Reporter James_inthe_box
Tags:exe GuLoader

Intelligence

File Origin
# of uploads :
2
# of downloads :
323
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
MLJ.exe
Verdict:
Malicious activity
Analysis date:
2021-06-07 13:31:23 UTC
Tags:
trojan opendir
Link:
https://app.any.run/tasks/9c8e03f2-1941-4e2f-b891-7fe779994f91

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Remcos
Create hunting rule
Link:
https://www.capesandbox.com/analysis/165027/
Detection(s):
SecuriteInfo.com.__vbaHresultCheckObj.11157.24137.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the Windows directory
Sending a UDP request
Unauthorized injection to a recently created process
Running batch commands
Creating a process with a hidden window
Launching a process
Creating a window
Result
Verdict:
UNKNOWN
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Result
Threat name:
Remcos GuLoader
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/798110
Signature
C2 URLs / IPs found in malware configuration
Contains functionality to detect hardware virtualization (CPUID execution measurement)
Detected RDTSC dummy instruction sequence (likely for instruction hammering)
Detected Remcos RAT
Found malware configuration
Hides threads from debuggers
Installs a global keyboard hook
Multi AV Scanner detection for dropped file
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)
Tries to detect virtualization through RDTSC time measurements
Uses ping.exe to check the status of other devices and networks
Uses ping.exe to sleep
Yara detected GuLoader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 430506 Sample: MLJ.exe Startdate: 07/06/2021 Architecture: WINDOWS Score: 100 51 ghsgatvxbznmklopwagdhusvxbznxgtewuahjkop.ydns.eu 2->51 57 Found malware configuration 2->57 59 Multi AV Scanner detection for submitted file 2->59 61 Detected Remcos RAT 2->61 63 3 other signatures 2->63 10 MLJ.exe 2 2->10         started        13 vpn.exe 1 2->13         started        15 vpn.exe 1 2->15         started        signatures3 process4 signatures5 75 Contains functionality to detect hardware virtualization (CPUID execution measurement) 10->75 77 Detected RDTSC dummy instruction sequence (likely for instruction hammering) 10->77 79 Tries to detect Any.run 10->79 81 Tries to detect virtualization through RDTSC time measurements 10->81 17 MLJ.exe 1 10 10->17         started        83 Hides threads from debuggers 13->83 22 vpn.exe 6 13->22         started        24 vpn.exe 6 15->24         started        process6 dnsIp7 47 ztechinternational.com 192.185.113.219, 49760, 49766, 49767 UNIFIEDLAYER-AS-1US United States 17->47 49 192.168.2.1 unknown unknown 17->49 41 C:\Users\user\AppData\Roaming\vpn.exe, PE32 17->41 dropped 43 C:\Users\user\...\vpn.exe:Zone.Identifier, ASCII 17->43 dropped 65 Tries to detect Any.run 17->65 67 Hides threads from debuggers 17->67 26 cmd.exe 1 17->26         started        file8 signatures9 process10 signatures11 85 Uses ping.exe to sleep 26->85 87 Uses ping.exe to check the status of other devices and networks 26->87 29 vpn.exe 1 26->29         started        32 PING.EXE 1 26->32         started        35 conhost.exe 26->35         started        process12 dnsIp13 89 Multi AV Scanner detection for dropped file 29->89 91 Contains functionality to detect hardware virtualization (CPUID execution measurement) 29->91 93 Detected RDTSC dummy instruction sequence (likely for instruction hammering) 29->93 95 3 other signatures 29->95 37 vpn.exe 1 7 29->37         started        45 127.0.0.1 unknown unknown 32->45 signatures14 process15 dnsIp16 53 ztechinternational.com 37->53 55 ghsgatvxbznmklopwagdhusvxbznxgtewuahjkop.ydns.eu 46.243.233.25, 6932 M247GB Netherlands 37->55 69 Tries to detect Any.run 37->69 71 Hides threads from debuggers 37->71 73 Installs a global keyboard hook 37->73 signatures17
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/d9646a5d9e2ac0eb2a28dfd33d900d0b7559d4879854fc454c74ab9f59ea934f/
Threat name:
Win32.Trojan.Vebzenpak
Create hunting rule
Status:
Malicious
First seen:
2021-06-07 12:17:41 UTC
File Type:
PE (Exe)
Extracted files:
6
AV detection:
13 of 29 (44.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=3fsguxm6flaowkri37jt3eanbn2vtvehtbkpyrkmosvz6wpksnhq._file
Verdict:
malicious
Label(s):
cloudeye
Create hunting rule
Similar samples:
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26429a83373a49db5ad7801f324d8f1ce0aafd687ee405a44cb8d6ebebf65c15
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815b5f62adb35607df07859bfd1b75763bf525643e7f21d5a0f8803dd0e86be4
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8653a11ee811265418a3b6f12945c585b77aea72f02b2d80f481c1100d895299
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8f71fca5621ccb7ba3558cfebc17014d27923d1c73ad97ececb577fd5b937047
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9e3fdcc393fc96ce693041533b4ecc9e43d57ad1bca40c99d07713dc90d39bd4
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a5fb63409bbc68224d3e2be7511cc6a49fd205892813890c3a76feeabd5a5e56
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GuLoader
+ 1'755 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:guloader family:remcos botnet:host downloader persistence rat
Link:
https://tria.ge/reports/210607-bzvtqn2s4n/
Behaviour
Runs ping.exe
Suspicious behavior: MapViewOfSection
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops file in Windows directory
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Adds Run key to start application
Checks QEMU agent file
Loads dropped DLL
Executes dropped EXE
Guloader,Cloudeye
Remcos
Malware Config
C2 Extraction:
ghsgatvxbznmklopwagdhusvxbznxgtewuahjkop.ydns.eu:6932
Unpacked files
SH256 hash:
49b04162c412105ab0857de16713724cbf3234a0b6ba51f3a5286312633f20c3
MD5 hash:
1f1b425190b2fb0396ad2d538b1060ba
SHA1 hash:
413f98641d46fdcabfcaf64f29495667de6282ea
Link:
https://www.unpac.me/results/64870185-6582-4710-9d5c-cb0c7e20f09f/
SH256 hash:
d9646a5d9e2ac0eb2a28dfd33d900d0b7559d4879854fc454c74ab9f59ea934f
MD5 hash:
e6423276771b55ea6c6fe28880a9a31d
SHA1 hash:
cc9e81ae0ec9ddd7c14372ff3a2f3fb753ceb7c6
Link:
https://www.unpac.me/results/64870185-6582-4710-9d5c-cb0c7e20f09f/
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/d9646a5d9e2ac0eb2a28dfd33d900d0b7559d4879854fc454c74ab9f59ea934f

File information

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

  
Delivery method
Other
Cape
Cape
https://www.capesandbox.com/analysis/165027/
  
URLhaus
https://urlhaus.abuse.ch/url/1336505/

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