MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 8b137dd6a6e551e04c153e201ee66fae098842c02f872897f02ff46d194cc5e3. 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: 6
| SHA256 hash: | 8b137dd6a6e551e04c153e201ee66fae098842c02f872897f02ff46d194cc5e3 |
|---|---|
| SHA3-384 hash: | 70c4e19d2f583a252b98540652143bbc4c54f13509e77355fec2778ff6d284f4e4261a2b00e76cfa61258c04db3fa85f |
| SHA1 hash: | fcb1c33fa6fb26e03af6a5d439b7174e0cd00c9f |
| MD5 hash: | c837fb12208d474f421b6a2c1f9e4f4b |
| humanhash: | september-low-berlin-double |
| File name: | CONTRACT.exe |
| Download: | download sample |
| Signature | GuLoader |
| File size: | 118'784 bytes |
| First seen: | 2021-07-05 22:14:45 UTC |
| Last seen: | 2021-07-05 22:50:08 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | 773df40b486ba5eea01d9fbfa70abb4f (6 x GuLoader) |
| ssdeep | 1536:nkpGsnzydiwPq6tc/CcJW+pyxTXCL/DPtWpLrZPZ1C4aCm5WpNrEHIF9SjW:LsnMiwPq6tECB+kJmD4JxM5+hd |
| TLSH | D0C36C63F2D89C62EED64B702931D4767632BC3174534E5F3606BAADB830A4366B061F |
| Reporter | Anonymous |
| Tags: | exe GuLoader |
Intelligence
File Origin
# of uploads :
2
# of downloads :
183
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
CONTRACT.exe
Verdict:
No threats detected
Analysis date:
2021-07-05 22:18:55 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:
UNKNOWN
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:
Unknown
Detection:
malicious
Classification:
evad
Score:
68 / 100
Signature
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 virtualization through RDTSC time measurements
Behaviour
Behavior Graph:
Detection:
guloader
Threat name:
Win32.Trojan.Graftor
Status:
Malicious
First seen:
2021-07-05 19:54:23 UTC
AV detection:
6 of 29 (20.69%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
suspicious
Result
Malware family:
guloader
Score:
10/10
Tags:
family:guloader downloader
Behaviour
Suspicious use of SetWindowsHookEx
Guloader,Cloudeye
Malware Config
C2 Extraction:
https://onedrive.live.com/download?cid=9DED14764803888E&resid=9DED14764803888E%21106&authkey=AJzQAmrFG4Oqj4M
Unpacked files
SH256 hash:
8b137dd6a6e551e04c153e201ee66fae098842c02f872897f02ff46d194cc5e3
MD5 hash:
c837fb12208d474f421b6a2c1f9e4f4b
SHA1 hash:
fcb1c33fa6fb26e03af6a5d439b7174e0cd00c9f
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.
Delivery method
Distributed via e-mail link
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