MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 be9fb9f5c528b848b05752124232ff1525b502f082b0b821a562c948a38aed72. 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: be9fb9f5c528b848b05752124232ff1525b502f082b0b821a562c948a38aed72
SHA3-384 hash: 47a58db4a77d739d6b1aae46a379851bd98112e338c3cba6f7dd11df2840c3e0a02e9cc7edc6ad5ba53eeeebc4b2102b
SHA1 hash: 08e17c2393cddf7310a9e867439856b83ae95ae3
MD5 hash: 80011a5bc78e9e5a5c51ce0d769e41a5
humanhash: kentucky-eleven-sixteen-virginia
File name:SecuriteInfo.com.Mal.Generic-S.31925
Download: download sample
Signature GuLoader
File size:153'080 bytes
First seen:2022-09-28 15:20:52 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash d4b94e8ee3f620a89d114b9da4b31873 (90 x GuLoader, 18 x njrat, 9 x RemcosRAT)
ssdeep 3072:+1T//IHWyWJADJuH1bLpXpEsz7Oq2AOHudOsaLEwgyrU7:A//I2y3A5LpXp72DAOHud/aVgyr6
Threatray 858 similar samples on MalwareBazaar
TLSH T1C6E3F18037A4F123C4715F311D6BAB6B8E7FA90019611303D368BA6B7E32796BA1F741
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 78ce9db9b3c6ec70 (4 x GuLoader)
Reporter SecuriteInfoCom
Tags:exe GuLoader signed

Code Signing Certificate

Organisation:
Issuer:
Algorithm:sha256WithRSAEncryption
Valid from:2022-03-01T00:36:28Z
Valid to:2025-02-28T00:36:28Z
Serial number: -19f95ff3aa53e983
Thumbprint Algorithm:SHA256
Thumbprint: 1e0f7fb921fa4fb623ff7182b0c690c23980575d2ef6fe53dd125f4998d6784c
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence


File Origin
# of uploads :
1
# of downloads :
351
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Suspicious
Maliciousness:

Behaviour
Searching for the window
Creating a window
Creating a file in the %AppData% subdirectories
Delayed reading of the file
Creating a file in the %temp% subdirectories
Searching for the Windows task manager window
Launching a process
Creating a process with a hidden window
Sending a custom TCP request
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Behaviour
MalwareBazaar
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
overlay packed shell32.dll
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.
Result
Threat name:
AgentTesla, GuLoader
Detection:
malicious
Classification:
troj.evad.spyw
Score:
100 / 100
Signature
Malicious sample detected (through community Yara rule)
Mass process execution to delay analysis
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
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)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal ftp login credentials
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Uses the Telegram API (likely for C&C communication)
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected GuLoader
Yara detected Telegram RAT
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 711900 Sample: SecuriteInfo.com.Mal.Generi... Startdate: 28/09/2022 Architecture: WINDOWS Score: 100 40 api.telegram.org 2->40 46 Snort IDS alert for network traffic 2->46 48 Malicious sample detected (through community Yara rule) 2->48 50 Yara detected GuLoader 2->50 52 4 other signatures 2->52 8 SecuriteInfo.com.Mal.Generic-S.31925.exe 1 30 2->8         started        signatures3 process4 file5 36 C:\Users\user\AppData\Local\...\nsExec.dll, PE32 8->36 dropped 38 C:\Users\user\AppData\Local\...\System.dll, PE32 8->38 dropped 54 Writes to foreign memory regions 8->54 56 Mass process execution to delay analysis 8->56 58 Tries to detect Any.run 8->58 12 CasPol.exe 8->12         started        16 powershell.exe 8->16         started        18 powershell.exe 8->18         started        20 71 other processes 8->20 signatures6 process7 dnsIp8 42 103.156.93.29, 49838, 80 TWIDC-AS-APTWIDCLimitedHK unknown 12->42 44 api.telegram.org 149.154.167.220, 443, 49846 TELEGRAMRU United Kingdom 12->44 60 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 12->60 62 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 12->62 64 Tries to steal Mail credentials (via file / registry access) 12->64 66 4 other signatures 12->66 22 conhost.exe 12->22         started        24 conhost.exe 16->24         started        26 conhost.exe 18->26         started        28 conhost.exe 20->28         started        30 conhost.exe 20->30         started        32 conhost.exe 20->32         started        34 68 other processes 20->34 signatures9 process10
Threat name:
Win32.Trojan.Guloader
Status:
Malicious
First seen:
2022-09-28 13:03:05 UTC
File Type:
PE (Exe)
Extracted files:
5
AV detection:
2 of 40 (5.00%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  7/10
Tags:
n/a
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops file in Program Files directory
Loads dropped DLL
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
13ebc725f3f236e1914fe5288ad6413798ad99bef38bfe9c8c898181238e8a10
MD5 hash:
1b0e41f60564cccccd71347d01a7c397
SHA1 hash:
b1bddd97765e9c249ba239e9c95ab32368098e02
SH256 hash:
5f4fbc5ad6afcd6d5d980783d74b11a2c63b07b3535c4edc188f2041e5f5ed26
MD5 hash:
e668e21cf5993f0ec39da3bb6beb89d5
SHA1 hash:
40b1669e02f6deab85f1f6fd837c4c5dfbf9bf18
SH256 hash:
be9fb9f5c528b848b05752124232ff1525b502f082b0b821a562c948a38aed72
MD5 hash:
80011a5bc78e9e5a5c51ce0d769e41a5
SHA1 hash:
08e17c2393cddf7310a9e867439856b83ae95ae3
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.

Comments