MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 12821451d62eb9126a3394e1abcaa6b68529976d1a3272793c6af2ed86aea8f3. 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: 7
| SHA256 hash: | 12821451d62eb9126a3394e1abcaa6b68529976d1a3272793c6af2ed86aea8f3 |
|---|---|
| SHA3-384 hash: | 56172a804991f0e7cb0264c009fed6a60abbd824f2a3e10417aa72d50d9c2b27e4192ee9037e2efda27bcaa80a7ae02c |
| SHA1 hash: | dd7ec9759c6abd38d70e019be6120aa3ab5abf3a |
| MD5 hash: | 7700a56566116380d970be0859028534 |
| humanhash: | massachusetts-high-lake-edward |
| File name: | 7700a56566116380d970be0859028534 |
| Download: | download sample |
| Signature | GuLoader |
| File size: | 177'352 bytes |
| First seen: | 2022-07-14 03:46:03 UTC |
| Last seen: | 2022-07-15 02:46:49 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f10e4da994053bf80c20cee985b32e29 (65 x GuLoader, 9 x RemcosRAT, 6 x QuasarRAT) |
| ssdeep | 3072:3Fi6z/VXzAf3ocVSbKWjdlaX3usLWmfKP7eZpq5jIMeo3FNzMflRFrN8otbZ:3xFSmvrmSjeZ45so3FSHr3bZ |
| Threatray | 3'676 similar samples on MalwareBazaar |
| TLSH | T18B04029573A0C977C3720A705E3A3F42F7F6A71465A1B34B2F508F9A38112D6D81DB82 |
| TrID | 48.8% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13) 16.4% (.EXE) Win64 Executable (generic) (10523/12/4) 10.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 7.8% (.EXE) Win16 NE executable (generic) (5038/12/1) 7.0% (.EXE) Win32 Executable (generic) (4505/5/1) |
| File icon (PE): |  |
| dhash icon | 646431a4f932a830 (1 x GuLoader) |
| Reporter |  openctibr |
| Tags: | exe GuLoader OpenCTI.BR Sandboxed signed |
Code Signing Certificate
| Organisation: | FORUROLIGELSE GOGGLE BRAABY Revocate8 |
|---|---|
| Issuer: | FORUROLIGELSE GOGGLE BRAABY Revocate8 |
| Algorithm: | sha256WithRSAEncryption |
| Valid from: | 2022-07-13T21:23:44Z |
| Valid to: | 2023-07-13T21:23:44Z |
| Serial number: | -542484bc2bd9891d |
| Thumbprint Algorithm: | SHA256 |
| Thumbprint: | 8bfc5769a7cb155f693ba024fbd2a7d44d7d98366d0b782be1eb7aa115b0d33b |
| Source: | This information was brought to you by ReversingLabs A1000 Malware Analysis Platform |
Intelligence
File Origin
# of uploads :
3
# of downloads :
176
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Result
Verdict:
Clean
Maliciousness:
Behaviour
Searching for the window
Creating a file in the %temp% directory
Creating a window
Creating a file
Sending a custom TCP request
Verdict:
Likely Malicious
Threat level:
7.5/10
Confidence:
100%
Tags:
buer 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:
FormBook, GuLoader
Detection:
malicious
Classification:
troj.evad.spyw
Score:
100 / 100
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Injects a PE file into a foreign processes
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Modifies the context of a thread in another process (thread injection)
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Snort IDS alert for network traffic
System process connects to network (likely due to code injection or exploit)
Tries to detect Any.run
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Writes to foreign memory regions
Yara detected FormBook
Yara detected GuLoader
Behaviour
Behavior Graph:
Threat name:
Win32.Downloader.GuLoader
Status:
Malicious
First seen:
2022-07-14 00:59:22 UTC
File Type:
PE (Exe)
Extracted files:
10
AV detection:
6 of 26 (23.08%)
Threat level:
3/5
Detection(s):
Suspicious file
Verdict:
suspicious
Similar samples:
+ 3'666 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
7/10
Tags:
discovery
Behaviour
Enumerates physical storage devices
Drops file in Program Files directory
Drops file in Windows directory
Checks installed software on the system
Loads dropped DLL
Unpacked files
SH256 hash:
d99c171ddf89cde390f2da6152118e5fe26ec9bda1eab6152c5d8e2caa3855bf
MD5 hash:
8efc64cc3efadaedcd93b04ef7253de6
SHA1 hash:
ed6cb522b294134ab1d35597655bd4dce5a08a92
SH256 hash:
c7a20bcaa0197aedddc8e4797bbb33fdf70d980f5e83c203d148121c2106d917
MD5 hash:
792b6f86e296d3904285b2bf67ccd7e0
SHA1 hash:
966b16f84697552747e0ddd19a4ba8ab5083af31
SH256 hash:
12821451d62eb9126a3394e1abcaa6b68529976d1a3272793c6af2ed86aea8f3
MD5 hash:
7700a56566116380d970be0859028534
SHA1 hash:
dd7ec9759c6abd38d70e019be6120aa3ab5abf3a
Malware family:
GuLoader
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.02
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.
Web download
Delivery method
Distributed via web download
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