MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 681410b16401ea5300bb40bfbb69e2f01d14ab931f3f8597a2be00dcac74443b. 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: | 681410b16401ea5300bb40bfbb69e2f01d14ab931f3f8597a2be00dcac74443b |
|---|---|
| SHA3-384 hash: | 731b8d6355fde63719ceb9f4794778fa524db5bff046c7f78f9c0bbe84e557c588e0757f14f53eab6d811989b0035089 |
| SHA1 hash: | 745c96b23553bb28e363f8aefe672babf28e9137 |
| MD5 hash: | 9a3ddb7a2fc19c99ecd1e8509b793a82 |
| humanhash: | alabama-mars-alaska-island |
| File name: | IAENMAIL-A4-230711-0830-0009025.pdf.exe |
| Download: | download sample |
| Signature | GuLoader |
| File size: | 612'320 bytes |
| First seen: | 2023-07-11 09:35:26 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | 3abe302b6d9a1256e6a915429af4ffd2 (271 x GuLoader, 38 x Formbook, 25 x Loki) |
| ssdeep | 12288:XbQTW8uiZCCUk2HgHfRifMYYNAjcJmSI6BZAohBudTe345UXCbgs:8W81zUk2m5i0YsAWB6ohgFetCbB |
| Threatray | 1'408 similar samples on MalwareBazaar |
| TLSH | T1B3D42366198AC4FAF6FA07B01BF7E37BA1BDD952311295C757B03F5A6A3C2658D002C0 |
| 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) |
| Reporter |  pr0xylife |
| Tags: | exe GuLoader |
Intelligence
File Origin
# of uploads :
1
# of downloads :
294
Origin country :
USVendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
IAENMAIL-A4-230711-0830-0009025.pdf.exe
Verdict:
Suspicious activity
Analysis date:
2023-07-11 09:36:41 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:
Suspicious
Maliciousness:
Behaviour
Searching for the window
Creating a window
Creating a file in the %temp% subdirectories
Сreating synchronization primitives
Creating a process from a recently created file
Creating a process with a hidden window
Launching a process
Result
Malware family:
n/a
Score:
5/10
Tags:
n/a
Behaviour
MalwareBazaar
Verdict:
Suspicious
Threat level:
5/10
Confidence:
100%
Tags:
control lolbin masquerade overlay packed shell32
Verdict:
Malicious
Labled as:
Win/malicious_confidence_70%
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:
n/a
Detection:
malicious
Classification:
evad
Score:
64 / 100
Signature
Found suspicious powershell code related to unpacking or dynamic code loading
Initial sample is a PE file and has a suspicious name
Multi AV Scanner detection for submitted file
Uses an obfuscated file name to hide its real file extension (double extension)
Very long command line found
Behaviour
Behavior Graph:
Threat name:
Win32.Trojan.Guloader
Status:
Malicious
First seen:
2023-07-11 09:36:07 UTC
File Type:
PE (Exe)
Extracted files:
9
AV detection:
17 of 24 (70.83%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
formbook
Similar samples:
+ 1'398 additional samples on MalwareBazaar
Result
Malware family:
guloader
Score:
10/10
Tags:
family:guloader 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
Legitimate hosting services abused for malware hosting/C2
Checks QEMU agent file
Checks computer location settings
Guloader,Cloudeye
Unpacked files
SH256 hash:
681410b16401ea5300bb40bfbb69e2f01d14ab931f3f8597a2be00dcac74443b
MD5 hash:
9a3ddb7a2fc19c99ecd1e8509b793a82
SHA1 hash:
745c96b23553bb28e363f8aefe672babf28e9137
Malware family:
XLoader
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
YARA Signatures
MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.
| Rule name: | Ins_NSIS_Buer_Nov_2020_1 |
|---|---|
| Author: | Arkbird_SOLG |
| Description: | Detect NSIS installer used for Buer loader |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
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