MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4f6b764220fed379fef259157d521dd0fc888fee4ae776f7bc1d7e8579fb4af5. 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


AgentTesla


Vendor detections: 7


Intelligence 7 IOCs YARA 2 File information Comments
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SHA256 hash: 4f6b764220fed379fef259157d521dd0fc888fee4ae776f7bc1d7e8579fb4af5
SHA3-384 hash: ab98c11be8405a3af9f3b80eb67c62ccb7114c520a3d065a90b9a9d81f8cbb54d16a4ab3dec6e76468792dd60026f022
SHA1 hash: 27e1368e1f56646c805a3c7dc61fd96a11d76dc3
MD5 hash: eda7297b7935c1d10fe7bdf168c68b1b
humanhash: indigo-ohio-echo-island
File name:ijbsg.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:497'552 bytes
First seen:2020-11-12 10:28:05 UTC
Last seen:2024-07-24 14:10:06 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'453 x Formbook, 12'202 x SnakeKeylogger)
ssdeep 6144:YPf1nzfunysPqtZDfvzG+9Y+I2+F1fNaT9W17rAbNx+Z9:W9MBGZfi+9Y+9+/S9W17P7
Threatray 548 similar samples on MalwareBazaar
TLSH 0EB416F6385F411AC5AA2EB18C50CA81BF3D1BC2FA41971DF49D533C2DA472EA3065D6
Reporter ffforward
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
3
# of downloads :
103
Origin country :
n/a
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.Trojan.Inject4.4915.31819.21238.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a window
Running batch commands
Launching a process
Creating a file
Creating a process from a recently created file
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a recently created process
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:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
80 / 100
Link:
https://www.joesandbox.com/analysis/532397
Signature
.NET source code contains very large array initializations
Creates an autostart registry key pointing to binary in C:\Windows
Drops PE files to the user root directory
Hides that the sample has been downloaded from the Internet (zone.identifier)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Yara detected AgentTesla
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 315300 Sample: ijbsg.exe Startdate: 12/11/2020 Architecture: WINDOWS Score: 80 37 Multi AV Scanner detection for submitted file 2->37 39 Yara detected AgentTesla 2->39 41 .NET source code contains very large array initializations 2->41 7 ijbsg.exe 4 2->7         started        11 pcalua.exe 1 2->11         started        13 pcalua.exe 1 2->13         started        process3 file4 27 C:\Users\user\ijbsg.exe, PE32 7->27 dropped 29 C:\Users\user\ijbsg.exe:Zone.Identifier, ASCII 7->29 dropped 31 C:\Users\user\AppData\Local\...\ijbsg.exe.log, ASCII 7->31 dropped 45 Drops PE files to the user root directory 7->45 47 Hides that the sample has been downloaded from the Internet (zone.identifier) 7->47 15 cmd.exe 1 7->15         started        17 ijbsg.exe 7->17         started        20 ijbsg.exe 11->20         started        signatures5 process6 signatures7 22 reg.exe 1 1 15->22         started        25 conhost.exe 15->25         started        33 Multi AV Scanner detection for dropped file 20->33 35 Hides that the sample has been downloaded from the Internet (zone.identifier) 20->35 process8 signatures9 43 Creates an autostart registry key pointing to binary in C:\Windows 22->43
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4f6b764220fed379fef259157d521dd0fc888fee4ae776f7bc1d7e8579fb4af5/
Threat name:
ByteCode-MSIL.Trojan.Wacatac
Create hunting rule
Status:
Malicious
First seen:
2020-11-12 10:29:07 UTC
AV detection:
23 of 29 (79.31%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=j5vxmqra73jxt7xslekx2uq52d6ird7ojltxn554dv7ik6p3jl2q._file
Verdict:
malicious
Similar samples:
09f20acd87a94d2a22202840d712eb5658471c2c39168d6178890ddcc313e9f3
AgentTesla
1d5d33d83029cd0b64bd4171db3e6535c4f50d31cc585b6e2b10345121c346fc
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240159852a07d731922811db6650130ff93a374e2128e72bf2b7cf8b52fe551e
AgentTesla
28dac03786f358f9f18751a1e0809e61de6f29a999c45ebc42b778ecf924a880
AgentTesla
a83497c7e3335390441e23f19360eb02a9f9e0613afe56bd0743e1502e1d01df
AgentTesla
a837374ed66cc50cb5760f0f948db288657fd0891687f43df9b9260dfb71449c
AgentTesla
d5886c42f7b8f77d036091616f0314f37e2db5c117aaa769ede368027fe7d43a
AgentTesla
e423f6b4b543c1ed3a05bae9ae421e81c17eb3f02d7aea46ff2c9996d76b9858
AgentTesla
f06e899675196185bd5ced2ea49470470f7b466225b2aae345d0068c652263e6
AgentTesla
fd54073286010523ef59ce428c3ae8b92f87abce1027ed232befe46499bf5e53
AgentTesla
+ 538 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  8/10
Tags:
persistence
Link:
https://tria.ge/reports/201112-j6mt73hara/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
Loads dropped DLL
Drops file in Drivers directory
Executes dropped EXE
Unpacked files
SH256 hash:
4838f75878c1862418cba8a103662f25fde6efd6135f0ee74eb4921340995f7b
MD5 hash:
7b8931e050e1b8fa812ebc854cbde7f6
SHA1 hash:
fac679795a464bf1598f77fb1efebd41bfb57b2d
Link:
https://www.unpac.me/results/3be9b34d-b9a6-4e21-abc7-d2e4d5991274/
SH256 hash:
4f6b764220fed379fef259157d521dd0fc888fee4ae776f7bc1d7e8579fb4af5
MD5 hash:
eda7297b7935c1d10fe7bdf168c68b1b
SHA1 hash:
27e1368e1f56646c805a3c7dc61fd96a11d76dc3
Link:
https://www.unpac.me/results/3be9b34d-b9a6-4e21-abc7-d2e4d5991274/
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:ach_AgentTesla_20200929
Create hunting rule
Author:abuse.ch
Description:Detects AgentTesla PE
Rule name:win_agent_tesla_v1
Create hunting rule
Author:Johannes Bader @viql
Description:detects Agent Tesla

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

AgentTesla

Excel file xls 374b9d2287355b2bce9eafdbb30745c48ebd5debcb37ec4e87c91957c2195e68

AgentTesla

Executable exe 4f6b764220fed379fef259157d521dd0fc888fee4ae776f7bc1d7e8579fb4af5

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/810242/
  
Dropped by
SHA256 374b9d2287355b2bce9eafdbb30745c48ebd5debcb37ec4e87c91957c2195e68
  
Delivery method
Distributed via web download

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