MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f02203dbc984119217b3443be3b2e1c1ae8cace333e5927acb8539d09d9c365b. 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: 10


Intelligence 10 IOCs YARA File information Comments

SHA256 hash: f02203dbc984119217b3443be3b2e1c1ae8cace333e5927acb8539d09d9c365b
SHA3-384 hash: c687581e78a7f72965370267f57a7fc17a040745927adfb2e5de7f0bc3be17bb551b6cad90277a24eb61756b8f8f3f1b
SHA1 hash: 73a953bf41fd21731e2d8fd9d4da3dd4a2951f6c
MD5 hash: cb839afd6383cc9dcc5530cfefea00db
humanhash: shade-oxygen-georgia-snake
File name:DOC REF 0984563 COPY.exe
Download: download sample
Signature GuLoader
File size:254'808 bytes
First seen:2022-11-18 10:31:29 UTC
Last seen:2022-11-18 13:01:31 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash e221f4f7d36469d53810a4b5f9fc8966 (118 x GuLoader, 28 x RemcosRAT, 21 x Formbook)
ssdeep 3072:BLfVxlyEZfp9zIzjBlLetfKhoewCYpbfLYTVj+x0yHiAW9KPRbbotoj8zprhK:xtXZXPzdRfqj+xbXboA+prhK
Threatray 15'653 similar samples on MalwareBazaar
TLSH T15344CE432A88DC92E83156F9E465DBF6466ABD12D801021F36F8BE1FF5B1B034D0E426
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):PE icon
dhash icon a2a32323f0cc6d33 (1 x GuLoader)
Reporter Anonymous
Tags:exe GuLoader signed

Code Signing Certificate

Organisation:
Issuer:
Algorithm:sha256WithRSAEncryption
Valid from:2022-07-25T10:47:52Z
Valid to:2025-07-24T10:47:52Z
Serial number: -709a20b59be09bcb
Thumbprint Algorithm:SHA256
Thumbprint: 635b853a4ab862f177e85643ccb43c957c66f0d2d2228021e39f2c02ff86c08b
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence


File Origin
# of uploads :
2
# of downloads :
286
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
guloader
ID:
1
File name:
DOC REF 0984563 COPY.exe
Verdict:
Malicious activity
Analysis date:
2022-11-18 10:34:16 UTC
Tags:
guloader

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a window
Creating a file in the %AppData% subdirectories
Searching for the window
Sending a custom TCP request
Creating a file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
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.
Result
Threat name:
GuLoader
Detection:
malicious
Classification:
troj.evad
Score:
72 / 100
Signature
Hides threads from debuggers
Multi AV Scanner detection for submitted file
Tries to detect Any.run
Yara detected GuLoader
Behaviour
Behavior Graph:
Threat name:
Win32.Spyware.Noon
Status:
Malicious
First seen:
2022-11-16 13:00:28 UTC
File Type:
PE (Exe)
Extracted files:
5
AV detection:
8 of 40 (20.00%)
Threat level:
  2/5
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
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Checks installed software on the system
Legitimate hosting services abused for malware hosting/C2
Checks QEMU agent file
Loads dropped DLL
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
dd5d0f9db6b3c1fc565551298bb39517d30406933bb37c3297705dae923eec14
MD5 hash:
36ac8744e9cf624104ac83fcad735d60
SHA1 hash:
b2938cd4778254562ccdf93ba22bab97287da650
SH256 hash:
5a1c20a3e2e2eb182976977669f2c5d9f3104477e98f74d69d2434e79b92fdc3
MD5 hash:
7399323923e3946fe9140132ac388132
SHA1 hash:
728257d06c452449b1241769b459f091aabcffc5
SH256 hash:
f02203dbc984119217b3443be3b2e1c1ae8cace333e5927acb8539d09d9c365b
MD5 hash:
cb839afd6383cc9dcc5530cfefea00db
SHA1 hash:
73a953bf41fd21731e2d8fd9d4da3dd4a2951f6c
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

GuLoader

Executable exe f02203dbc984119217b3443be3b2e1c1ae8cace333e5927acb8539d09d9c365b

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments