MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 37fba5e93049ee78ac1fdf1fafe945636680193ddcb1dc9533f2c9ac80d3744c. 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: 8
| SHA256 hash: | 37fba5e93049ee78ac1fdf1fafe945636680193ddcb1dc9533f2c9ac80d3744c |
|---|---|
| SHA3-384 hash: | 7666755a4bd43d9549e72703e3d1fde625361c64bcdd2784e7347424ca5de565502da643803cdc05fe3bfe32a5a15837 |
| SHA1 hash: | 53d30a1a02711ae92df5cb188f9b12b79abd259b |
| MD5 hash: | 4afb277a920b477f1148365c9408b3ef |
| humanhash: | kansas-beer-undress-south |
| File name: | 4afb277a920b477f1148365c9408b3ef.exe |
| Download: | download sample |
| Signature | GuLoader |
| File size: | 98'304 bytes |
| First seen: | 2021-03-04 07:59:01 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | 05dcbee7bb2d3c59124fc0704fece83d (9 x GuLoader) |
| ssdeep | 1536:VD7A1fq3WFofvgSgjmLLA6t7tNCEFoUJynZwGD7A1fq:b4o1gjmoyTiw |
| Threatray | 243 similar samples on MalwareBazaar |
| TLSH | C8A3D916ACBC4887D7234330D41EA9CA0165DF217E21B68BB445F23BD9793E146BD37A |
| Reporter |  abuse_ch |
| Tags: | exe GuLoader |
Intelligence
File Origin
# of uploads :
1
# of downloads :
266
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
030121_NEW ORDER.xlsx
Verdict:
Malicious activity
Analysis date:
2021-03-03 16:50:41 UTC
Tags:
exploit CVE-2017-11882 loader trojan guloader
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Result
Verdict:
Clean
Maliciousness:
Behaviour
Creating a window
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:
GuLoader
Detection:
malicious
Classification:
troj.evad
Score:
92 / 100
Signature
Contains functionality to detect hardware virtualization (CPUID execution measurement)
Contains functionality to hide a thread from the debugger
Detected RDTSC dummy instruction sequence (likely for instruction hammering)
Hides threads from debuggers
Machine Learning detection for sample
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 GuLoader
Yara detected VB6 Downloader Generic
Behaviour
Behavior Graph:
Detection:
guloader
Threat name:
Win32.Trojan.Wacatac
Status:
Malicious
First seen:
2021-03-03 07:37:42 UTC
AV detection:
17 of 29 (58.62%)
Threat level:
5/5
Detection(s):
Malicious file
Verdict:
malicious
Label(s):
guloader
Similar samples:
+ 233 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
8/10
Tags:
persistence
Behaviour
Modifies registry class
Suspicious behavior: MapViewOfSection
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Adds Run key to start application
Loads dropped DLL
Executes dropped EXE
Unpacked files
SH256 hash:
37fba5e93049ee78ac1fdf1fafe945636680193ddcb1dc9533f2c9ac80d3744c
MD5 hash:
4afb277a920b477f1148365c9408b3ef
SHA1 hash:
53d30a1a02711ae92df5cb188f9b12b79abd259b
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.16
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
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