MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 2b1f9072d11a6ac9170cb1ef608dfd7369f63639cb78296f7643fce2b4192a7a. 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: 13
| SHA256 hash: | 2b1f9072d11a6ac9170cb1ef608dfd7369f63639cb78296f7643fce2b4192a7a |
|---|---|
| SHA3-384 hash: | e1bc215cab63b337934c7de35cef6abd36e0d3be1f84369a81a4048a53bfab4fa8bef36969c8f22be824a180c52f3221 |
| SHA1 hash: | e9d798df5b4d303b6fe54dcc3dc34232ff19ce28 |
| MD5 hash: | f6b70d9395134f497326454146dc93f0 |
| humanhash: | sad-chicken-ink-summer |
| File name: | Justificante_operacionpdf.exe |
| Download: | download sample |
| Signature | GuLoader |
| File size: | 516'106 bytes |
| First seen: | 2023-05-08 11:46:51 UTC |
| Last seen: | 2023-05-16 15:54:16 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | b34f154ec913d2d2c435cbd644e91687 (527 x GuLoader, 110 x RemcosRAT, 80 x EpsilonStealer) |
| ssdeep | 6144:GQ606xGPZVheNA+ff0/Cv/DsTO0pMzKiEd3uykFc9lLwoC9C0qiQ6Lfm1h3/sFJW:xnhe2eyCHDCOFKvKFcvwoUhU043/cZsj |
| Threatray | 795 similar samples on MalwareBazaar |
| TLSH | T1B0B49C9239C965AFDC2F4674035FEAB22BB95CE07381496E4F80361D5C3694A80EEDC7 |
| TrID | 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13) 15.9% (.EXE) Win64 Executable (generic) (10523/12/4) 9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 7.6% (.EXE) Win16 NE executable (generic) (5038/12/1) 6.8% (.EXE) Win32 Executable (generic) (4505/5/1) |
| File icon (PE): |  |
| dhash icon | c88604b919c6c6c0 (77 x GuLoader, 10 x Formbook, 8 x AgentTesla) |
| Reporter |  spatronn2 |
| Tags: | exe GuLoader |
Intelligence
File Origin
# of uploads :
3
# of downloads :
263
Origin country :
TRVendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Justificante_operacionpdf.exe
Verdict:
Malicious activity
Analysis date:
2023-05-08 11:50:03 UTC
Tags:
n/a
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Detection(s):
Result
Verdict:
Clean
Maliciousness:
Behaviour
Creating a window
Creating a file
Delayed reading of the file
Creating a file in the %temp% subdirectories
Sending a custom TCP request
Result
Malware family:
n/a
Score:
5/10
Tags:
n/a
Behaviour
MalwareBazaar
Verdict:
Malicious
Threat level:
10/10
Confidence:
100%
Tags:
comodo guloader overlay packed shell32.dll
Verdict:
Malicious
Labled as:
TR/AD.Nekark
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:
Unknown
Result
Threat name:
GuLoader, FormBook
Detection:
malicious
Classification:
troj.evad.spyw
Score:
100 / 100
Signature
Antivirus detection for URL or domain
Injects a PE file into a foreign processes
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)
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Snort IDS alert for network traffic
System process connects to network (likely due to code injection or exploit)
Tries to detect Any.run
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Writes to foreign memory regions
Yara detected FormBook
Yara detected GuLoader
Behaviour
Behavior Graph:
Threat name:
Win32.Trojan.Guloader
Status:
Malicious
First seen:
2023-05-08 08:08:27 UTC
File Type:
PE (Exe)
Extracted files:
187
AV detection:
16 of 24 (66.67%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
cloudeye
Similar samples:
+ 785 additional samples on MalwareBazaar
Result
Malware family:
guloader
Score:
10/10
Tags:
family:guloader discovery downloader
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
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
Checks installed software on the system
Legitimate hosting services abused for malware hosting/C2
Checks QEMU agent file
Checks computer location settings
Loads dropped DLL
Guloader,Cloudeye
Unpacked files
SH256 hash:
f004c568d305cd95edbd704166fcd2849d395b595dff814bcc2012693527ac37
MD5 hash:
8b3830b9dbf87f84ddd3b26645fed3a0
SHA1 hash:
223bef1f19e644a610a0877d01eadc9e28299509
SH256 hash:
2b1f9072d11a6ac9170cb1ef608dfd7369f63639cb78296f7643fce2b4192a7a
MD5 hash:
f6b70d9395134f497326454146dc93f0
SHA1 hash:
e9d798df5b4d303b6fe54dcc3dc34232ff19ce28
Malware family:
GuLoader
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
GuLoader
Score:
0.90
File information
The table below shows additional information about this malware sample such as delivery method and external references.
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