MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 8731774a17b8d40b743f7fd6ff83d45ca5890f8e1371be8a0755186f2fc3cda0. 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: 12
| SHA256 hash: | 8731774a17b8d40b743f7fd6ff83d45ca5890f8e1371be8a0755186f2fc3cda0 |
|---|---|
| SHA3-384 hash: | b5fdce5f4c5bd650e55934e643f1f43b8b799881fc8e9984a86dee7ab7f515e741787038dc41a24f63ad38fe635f0106 |
| SHA1 hash: | 625a54099c9d9f14fcc67c72100adc1f39657c6a |
| MD5 hash: | 70a39d2fbd4bb41eede4e41d43a413f2 |
| humanhash: | xray-black-xray-one |
| File name: | STS-QP-18-01-D.doc.exe |
| Download: | download sample |
| Signature | GuLoader |
| File size: | 389'803 bytes |
| First seen: | 2023-07-03 09:50:09 UTC |
| Last seen: | 2023-07-10 10:09:41 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | b34f154ec913d2d2c435cbd644e91687 (526 x GuLoader, 110 x RemcosRAT, 80 x EpsilonStealer) |
| ssdeep | 6144:wQ606xcAw6PRmsv4VFv/JT5WC5kmlGKYSSXhkf7B2F0s:IRdv4HHXPnYSS0a |
| Threatray | 948 similar samples on MalwareBazaar |
| TLSH | T1E384DF01F385D65FF67F1A71D8A3E2BD67B058242E075B033390766DB872E819B06AD1 |
| 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 | 0070e2c266ca64a0 (1 x GuLoader) |
| Reporter |  adrian__luca |
| Tags: | exe GuLoader |
Intelligence
File Origin
# of uploads :
3
# of downloads :
267
Origin country :
HUVendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
STS-QP-18-01-D.doc.exe
Verdict:
Suspicious activity
Analysis date:
2023-07-03 09:53:57 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:
Clean
Maliciousness:
Behaviour
Searching for the 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:
Suspicious
Threat level:
5/10
Confidence:
100%
Tags:
control lolbin masquerade overlay packed shell32
Verdict:
Malicious
Labled as:
Trojan.Generic
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
Detection:
malicious
Classification:
troj.evad
Score:
76 / 100
Signature
Multi AV Scanner detection for submitted file
Snort IDS alert for network traffic
Tries to detect Any.run
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses an obfuscated file name to hide its real file extension (double extension)
Yara detected GuLoader
Behaviour
Behavior Graph:
Threat name:
Win32.Trojan.Guloader
Status:
Malicious
First seen:
2023-07-03 09:51:08 UTC
File Type:
PE (Exe)
Extracted files:
5
AV detection:
14 of 24 (58.33%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
cloudeye
Similar samples:
+ 938 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
7/10
Tags:
discovery
Behaviour
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops file in Program Files directory
Drops file in Windows directory
Drops file in System32 directory
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Checks installed software on the system
Checks QEMU agent file
Loads dropped DLL
Unpacked files
SH256 hash:
f004c568d305cd95edbd704166fcd2849d395b595dff814bcc2012693527ac37
MD5 hash:
8b3830b9dbf87f84ddd3b26645fed3a0
SHA1 hash:
223bef1f19e644a610a0877d01eadc9e28299509
SH256 hash:
8731774a17b8d40b743f7fd6ff83d45ca5890f8e1371be8a0755186f2fc3cda0
MD5 hash:
70a39d2fbd4bb41eede4e41d43a413f2
SHA1 hash:
625a54099c9d9f14fcc67c72100adc1f39657c6a
Malware family:
GuLoader
Verdict:
Malicious
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
Distributed via e-mail attachment
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