MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 9433390a8374d47e62017b03c8d949af363e1f1aaa5247a2e320fc611c42f138. 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
| SHA256 hash: | 9433390a8374d47e62017b03c8d949af363e1f1aaa5247a2e320fc611c42f138 |
|---|---|
| SHA3-384 hash: | 73e229797a3e20933a8e3aff2e76b274ae0b7a359a40836c7e320d08385c9269c552bd47e4da0c23d2fb46ce03ee01c9 |
| SHA1 hash: | 6f5d834b312bad0742efacf2dc4e1484a9541b40 |
| MD5 hash: | 152a5851db0c8cf4e0d70ebdc17ee40f |
| humanhash: | sixteen-vermont-bacon-sixteen |
| File name: | PO 15682.exe |
| Download: | download sample |
| Signature | GuLoader |
| File size: | 135'168 bytes |
| First seen: | 2021-02-26 06:21:11 UTC |
| Last seen: | 2021-02-26 08:21:42 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | cc882d101998a701353b40b0cd8c341a (6 x GuLoader, 1 x Formbook) |
| ssdeep | 3072:EwVUPv+6PElyWqBW5g6ohmCzWawAMi2Vj5XQqwV:EwVUPw7YmCyawAMi2Vj9QqwV |
| Threatray | 3'231 similar samples on MalwareBazaar |
| TLSH | B5D3F531A3B4A97BF52E5730BADA86B81764AF1799404D4310B2360E3F34A056732DFB |
| Reporter |  cocaman |
| Tags: | exe GuLoader |
Intelligence
File Origin
# of uploads :
2
# of downloads :
170
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
PO 15682.exe
Verdict:
Suspicious activity
Analysis date:
2021-02-26 06:24:10 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:
Malware
Maliciousness:
Behaviour
Creating a window
Sending a UDP request
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.
Result
Threat name:
FormBook GuLoader
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
Detected RDTSC dummy instruction sequence (likely for instruction hammering)
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
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
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
Yara detected VB6 Downloader Generic
Behaviour
Behavior Graph:
Threat name:
Win32.Trojan.Guloader
Status:
Malicious
First seen:
2021-02-25 22:35:46 UTC
File Type:
PE (Exe)
Extracted files:
16
AV detection:
19 of 48 (39.58%)
Threat level:
5/5
Detection(s):
Malicious file
Verdict:
malicious
Label(s):
formbook
Similar samples:
+ 3'221 additional samples on MalwareBazaar
Result
Malware family:
formbook
Score:
10/10
Tags:
family:formbook rat spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Deletes itself
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.lyceumgroupbooks.com/blk/
Unpacked files
SH256 hash:
49b04162c412105ab0857de16713724cbf3234a0b6ba51f3a5286312633f20c3
MD5 hash:
1f1b425190b2fb0396ad2d538b1060ba
SHA1 hash:
413f98641d46fdcabfcaf64f29495667de6282ea
SH256 hash:
9433390a8374d47e62017b03c8d949af363e1f1aaa5247a2e320fc611c42f138
MD5 hash:
152a5851db0c8cf4e0d70ebdc17ee40f
SHA1 hash:
6f5d834b312bad0742efacf2dc4e1484a9541b40
Please note that we are no longer able to provide a coverage score for Virus Total.
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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