MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 51b8aca1622a4a112aa586d6f25d2dd138de8bd6960fe7dfbab578ab5aebcd92. 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: | 51b8aca1622a4a112aa586d6f25d2dd138de8bd6960fe7dfbab578ab5aebcd92 |
|---|---|
| SHA3-384 hash: | 0a2867c1771e818e67382abe4784fa7e9b94c1a869c1b218d22245aeb6ce552d25fbe22210e27389a0328a4c683997df |
| SHA1 hash: | 90ad259fc4f277396a9e79d52a3b995ccd9b080d |
| MD5 hash: | 5c50f3aebb0b53a4b0f4d91236ee9209 |
| humanhash: | winter-mirror-bravo-delta |
| File name: | New Order - PSFK23TT002.exe |
| Download: | download sample |
| Signature | GuLoader |
| File size: | 424'280 bytes |
| First seen: | 2023-05-02 11:40:58 UTC |
| Last seen: | 2023-05-13 22:54:01 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | 3abe302b6d9a1256e6a915429af4ffd2 (280 x GuLoader, 38 x Formbook, 25 x Loki) |
| ssdeep | 12288:T4FAe+jtbt1JcA8V6icnPrxj3VpVcpO3EG6wC/:CAe+jtbt1JcA8cnPVVpGs9w/ |
| Threatray | 589 similar samples on MalwareBazaar |
| TLSH | T1CF94F1423554A0AFD82641329167BE279B53ACF45F905FF73B977B1E5822282E33C22D |
| 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 | 56d4fccccc686070 (5 x GuLoader, 3 x VIPKeylogger, 2 x AZORult) |
| Reporter |  abuse_ch |
| Tags: | exe GuLoader signed |
Code Signing Certificate
| Organisation: | |
|---|---|
| Issuer: | |
| Algorithm: | sha256WithRSAEncryption |
| Valid from: | 2022-12-18T09:54:59Z |
| Valid to: | 2025-12-17T09:54:59Z |
| Serial number: | 7fcbcb7d74a4057e1e53a7730b5b0368d8822763 |
| Thumbprint Algorithm: | SHA256 |
| Thumbprint: | e2c6597e5ca542fd319460e040897419e7f0724aef0f3aa823155537bd358f68 |
| Source: | This information was brought to you by ReversingLabs A1000 Malware Analysis Platform |
Intelligence
File Origin
# of uploads :
2
# of downloads :
254
Origin country :
NLVendor Threat Intelligence
Malware family:
guloader
ID:
1
File name:
New Order - PSFK23TT002.exe
Verdict:
Malicious activity
Analysis date:
2023-05-02 11:43:10 UTC
Tags:
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
Creating a file in the %AppData% subdirectories
Delayed reading of the file
Creating a file in the %temp% subdirectories
Result
Malware family:
n/a
Score:
5/10
Tags:
n/a
Behaviour
MalwareBazaar
Verdict:
Malicious
Threat level:
10/10
Confidence:
100%
Tags:
buer comodo guloader overlay packed shell32.dll
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
Initial sample is a PE file and has a suspicious name
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)
Yara detected GuLoader
Behaviour
Behavior Graph:
Threat name:
Win32.Trojan.FormBook
Status:
Malicious
First seen:
2023-05-01 01:15:35 UTC
File Type:
PE (Exe)
Extracted files:
186
AV detection:
14 of 24 (58.33%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
cloudeye
Similar samples:
+ 579 additional samples on MalwareBazaar
Result
Malware family:
guloader
Score:
10/10
Tags:
family:guloader discovery downloader
Behaviour
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
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
Guloader,Cloudeye
Unpacked files
SH256 hash:
a0cac4cf4852895619bc7743ebeb89f9e4927ccdb9e66b1bcd92a4136d0f9c77
MD5 hash:
b0c77267f13b2f87c084fd86ef51ccfc
SHA1 hash:
f7543f9e9b4f04386dfbf33c38cbed1bf205afb3
SH256 hash:
51b8aca1622a4a112aa586d6f25d2dd138de8bd6960fe7dfbab578ab5aebcd92
MD5 hash:
5c50f3aebb0b53a4b0f4d91236ee9209
SHA1 hash:
90ad259fc4f277396a9e79d52a3b995ccd9b080d
Malware family:
GuLoader
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 |
| Rule name: | PE_Digital_Certificate |
|---|---|
| Author: | albertzsigovits |
| Rule name: | PE_Potentially_Signed_Digital_Certificate |
|---|---|
| Author: | albertzsigovits |
| Rule name: | QbotStuff |
|---|---|
| Author: | anonymous |
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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