MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 ff1b034c7060724133c6df0aa8cf5411ec0e6775d3aca83a127617340a8c588a. 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: 5
| SHA256 hash: | ff1b034c7060724133c6df0aa8cf5411ec0e6775d3aca83a127617340a8c588a |
|---|---|
| SHA3-384 hash: | d8905be5266fb52d9ea08729b4fe5cd188fe6bf56882b5c0c7945c76e2214b264eebd17f45ca78c403aa3be2e8862ea6 |
| SHA1 hash: | d3b529d77f1de00d63a75b3956d4bcf6bbce30ca |
| MD5 hash: | fcfb0ec70f1419ede8a534cc95cb61e9 |
| humanhash: | mexico-alanine-butter-beer |
| File name: | fcfb0ec70f1419ede8a534cc95cb61e9 |
| Download: | download sample |
| Signature | GuLoader |
| File size: | 267'376 bytes |
| First seen: | 2021-07-14 15:15:26 UTC |
| Last seen: | 2021-07-14 16:11:24 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | a6a8fddf213e725d12277ffa52409c50 (2 x GuLoader) |
| ssdeep | 1536:x2M5j2eBXFScbssSe/W+dMa27qQ0Z9Dfs4IwNAvgiIOm72tNHLg/8A:T5FXrbVTeE2uQU7s49AMUrg/8A |
| Threatray | 5'051 similar samples on MalwareBazaar |
| TLSH | T1D24416B01ABB7CDBD884A934BB1DBC24D17AE4E05B188F696974631CDC3DE1180BD31A |
| Reporter |  zbetcheckin |
| Tags: | 32 exe GuLoader signed |
Code Signing Certificate
| Organisation: | skrdd |
|---|---|
| Issuer: | skrdd |
| Algorithm: | sha256WithRSAEncryption |
| Valid from: | 2021-07-13T17:05:37Z |
| Valid to: | 2022-07-13T17:05:37Z |
| 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: | d8dc1d893cd8accf7b4cb8910ac7f2c4539ab530ad74e93f825ccda9e5c58408 |
| Source: | This information was brought to you by ReversingLabs A1000 Malware Analysis Platform |
Intelligence
File Origin
# of uploads :
2
# of downloads :
202
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
fcfb0ec70f1419ede8a534cc95cb61e9
Verdict:
No threats detected
Analysis date:
2021-07-14 15:21:03 UTC
Tags:
n/a
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
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:
GuLoader FormBook
Detection:
malicious
Classification:
troj.evad.spyw
Score:
100 / 100
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)
Found malware configuration
GuLoader behavior detected
Hides threads from debuggers
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
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
Yara detected FormBook
Yara detected Generic Dropper
Yara detected GuLoader
Behaviour
Behavior Graph:
Threat name:
Win32.Trojan.Vebzenpak
Status:
Malicious
First seen:
2021-07-14 09:02:01 UTC
File Type:
PE (Exe)
Extracted files:
24
AV detection:
9 of 29 (31.03%)
Threat level:
5/5
Verdict:
suspicious
Similar samples:
+ 5'041 additional samples on MalwareBazaar
Result
Malware family:
guloader
Score:
10/10
Tags:
family:guloader downloader
Behaviour
Suspicious use of SetWindowsHookEx
Guloader,Cloudeye
Unpacked files
SH256 hash:
ff1b034c7060724133c6df0aa8cf5411ec0e6775d3aca83a127617340a8c588a
MD5 hash:
fcfb0ec70f1419ede8a534cc95cb61e9
SHA1 hash:
d3b529d77f1de00d63a75b3956d4bcf6bbce30ca
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.00
File information
The table below shows additional information about this malware sample such as delivery method and external references.
Web download
Delivery method
Distributed via web download
Comments
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