MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 81be23ce8636c948e1ac5c966ee5c34f738f8dc20aa85acedbca48f92e1ff363. 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: 11
| SHA256 hash: | 81be23ce8636c948e1ac5c966ee5c34f738f8dc20aa85acedbca48f92e1ff363 |
|---|---|
| SHA3-384 hash: | 8902932c8d78094a0c9b9361cf5599fbc862f7f682afb53193a433c1fefee5e79c6096e96dcc57eec4773378a7ecff99 |
| SHA1 hash: | 28415d98d50ceb4c3316aaff393bef656a9f4ad2 |
| MD5 hash: | 4e67bf00a10e57eac11e3f8f66546f9c |
| humanhash: | twenty-magnesium-maryland-alabama |
| File name: | Shipment Document BL,INV and Packing list Attached.exe |
| Download: | download sample |
| Signature | GuLoader |
| File size: | 189'528 bytes |
| First seen: | 2021-06-22 05:56:35 UTC |
| Last seen: | 2021-06-22 13:08:26 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | 269fbb82c8f402e670c866cdbdfbba84 (4 x GuLoader, 2 x Loki, 1 x BitRAT) |
| ssdeep | 3072:IwLKc0KG7gGK44dsGop/o5kkeWduQaqrHXYH5M7hL8:jPi7gt2h/oSkeWduQaqrHXYH5Y |
| Threatray | 5'894 similar samples on MalwareBazaar |
| TLSH | 94048EE37680F972D75984B256114AFD2D88AD301D6489C3E2C53B2FE7B6AD2D330626 |
| Reporter |  cocaman |
| Tags: | DHL exe GuLoader signed |
Code Signing Certificate
| Organisation: | Opdigtende9 |
|---|---|
| Issuer: | Opdigtende9 |
| Algorithm: | sha256WithRSAEncryption |
| Valid from: | 2021-06-21T23:39:43Z |
| Valid to: | 2022-06-21T23:39:43Z |
| Serial number: | 00 |
| Intelligence: | 325 malware samples on MalwareBazaar are signed with this code signing certificate |
| Cert Central Blocklist: | This certificate is on the Cert Central blocklist |
| Thumbprint Algorithm: | SHA256 |
| Thumbprint: | d375808f3237f9bb8415059f35ef5b94b9308f8c63e08521da0ce9acc5ad142e |
| Source: | This information was brought to you by ReversingLabs A1000 Malware Analysis Platform |
Intelligence
File Origin
# of uploads :
4
# of downloads :
184
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Shipment Document BL,INV and Packing list Attached.exe
Verdict:
Suspicious activity
Analysis date:
2021-06-22 05:59:28 UTC
Tags:
n/a
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Guloader
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
Result
Threat name:
Unknown
Detection:
malicious
Classification:
evad
Score:
56 / 100
Signature
Detected RDTSC dummy instruction sequence (likely for instruction hammering)
Executable has a suspicious name (potential lure to open the executable)
Initial sample is a PE file and has a suspicious name
Tries to detect virtualization through RDTSC time measurements
Behaviour
Behavior Graph:
Detection:
guloader
Threat name:
Win32.Trojan.VBObfuse
Status:
Malicious
First seen:
2021-06-22 05:49:58 UTC
File Type:
PE (Exe)
Extracted files:
16
AV detection:
14 of 46 (30.43%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
formbook
Similar samples:
+ 5'884 additional samples on MalwareBazaar
Result
Malware family:
guloader
Score:
10/10
Tags:
family:formbook family:guloader downloader rat spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of SetWindowsHookEx
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Checks QEMU agent file
Deletes itself
Formbook Payload
Formbook
Guloader,Cloudeye
Malware Config
C2 Extraction:
https://onedrive.live.com/download?cid=7CE57EBD7A97D20C&resid=7CE57EBD7A97D20C%21107&authkey=ABprYQaNgWPFxNE
http://www.semenovdmitriik.club/bwk/
http://www.semenovdmitriik.club/bwk/
Unpacked files
SH256 hash:
49b04162c412105ab0857de16713724cbf3234a0b6ba51f3a5286312633f20c3
MD5 hash:
1f1b425190b2fb0396ad2d538b1060ba
SHA1 hash:
413f98641d46fdcabfcaf64f29495667de6282ea
SH256 hash:
81be23ce8636c948e1ac5c966ee5c34f738f8dc20aa85acedbca48f92e1ff363
MD5 hash:
4e67bf00a10e57eac11e3f8f66546f9c
SHA1 hash:
28415d98d50ceb4c3316aaff393bef656a9f4ad2
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
File information
The table below shows additional information about this malware sample such as delivery method and external references.
Malspam
Delivery method
Other
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