MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 dec081544348d7000fcbd9ee30c3854733dc8b56f808f5dae28a21050fce03a2. 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: 10


Intelligence 10 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: dec081544348d7000fcbd9ee30c3854733dc8b56f808f5dae28a21050fce03a2
SHA3-384 hash: dec468e5c57e39d6bdc0bc3163201830ffd2df1a329e9c4098fae155b69e2ad7c14a1e3903c8be189c3b04d935f14c40
SHA1 hash: a446b41c06c743983a40dd986a6de40c594ceee1
MD5 hash: 93847b77be4e04987b33077434737d01
humanhash: blossom-seven-victor-connecticut
File name:western union.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:799'232 bytes
First seen:2020-08-12 06:38:07 UTC
Last seen:2020-08-12 07:58:39 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'743 x AgentTesla, 19'608 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 6144:uBz+E3bXJt2NExOP+rQH34ELhpruN3QnbDbmVrs9UqPputc185YGSW2b6j05kb/N:u/3bJtLxul3phRbfDRucBb6Yv
Threatray 10'895 similar samples on MalwareBazaar
TLSH 620539397A819402DA3D167688F4AED1A77279866F12CA0F68C7335C6F13BCB370519E
Reporter abuse_ch
Tags:AgentTesla exe FRA geo Outlook


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: EUR06-AM7-obe.outbound.protection.outlook.com
Sending IP: 40.92.16.51
From: M. B/B12 <omo9ja2@hotmail.com>
Subject: les reçu
Attachment: western union.rar (contains "western union.exe")

Intelligence

File Origin
# of uploads :
2
# of downloads :
72
Origin country :
n/a
Vendor Threat Intelligence
Detection:
AgentTeslaV2
Create hunting rule
Link:
https://www.capesandbox.com/analysis/43943/
Detection(s):
SecuriteInfo.com.Heur.MSIL.Pretoria.1.22125.8669.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Creating a file in the %temp% directory
Running batch commands
Launching a process
Creating a file in the %AppData% directory
Creating a process from a recently created file
Creating a file
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a recently created process
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
69 / 100
Link:
https://www.joesandbox.com/analysis/421482
Signature
Allocates memory in foreign processes
Creates an autostart registry key pointing to binary in C:\Windows
Creates multiple autostart registry keys
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
Sigma detected: Add file from suspicious location to autostart registry
Writes to foreign memory regions
Yara detected AgentTesla
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 263188 Sample: western union.exe Startdate: 12/08/2020 Architecture: WINDOWS Score: 69 37 Found malware configuration 2->37 39 Yara detected AgentTesla 2->39 41 Sigma detected: Add file from suspicious location to autostart registry 2->41 7 western union.exe 7 2->7         started        10 pcalua.exe 1 2->10         started        12 pcalua.exe 1 1 2->12         started        process3 file4 31 C:\Users\user\AppData\...\application.exe, PE32 7->31 dropped 33 C:\Users\user\AppData\...\AddInProcess32.exe, PE32 7->33 dropped 35 C:\Users\...\application.exe:Zone.Identifier, ASCII 7->35 dropped 14 application.exe 2 7->14         started        17 cmd.exe 1 7->17         started        19 application.exe 3 10->19         started        process5 signatures6 51 Writes to foreign memory regions 14->51 53 Allocates memory in foreign processes 14->53 55 Injects a PE file into a foreign processes 14->55 21 AddInProcess32.exe 2 4 14->21         started        25 reg.exe 1 1 17->25         started        27 conhost.exe 17->27         started        process7 file8 29 C:\Users\user\AppData\Roaming\...\ljYBX.exe, PE32 21->29 dropped 43 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 21->43 45 Creates multiple autostart registry keys 21->45 47 Hides that the sample has been downloaded from the Internet (zone.identifier) 21->47 49 Creates an autostart registry key pointing to binary in C:\Windows 25->49 signatures9
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/dec081544348d7000fcbd9ee30c3854733dc8b56f808f5dae28a21050fce03a2/
Threat name:
ByteCode-MSIL.Trojan.Pretoria
Create hunting rule
Status:
Malicious
First seen:
2020-08-12 06:40:08 UTC
AV detection:
16 of 48 (33.33%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=33aicvcdjdlqad6l3hxdbq4fi4z5zc2w7aeplwxcriqqkd6oaora._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
46cf0d598ead968845e7d17cfba1b30eccb7a66fa639763ba99335b3ce4d8f65
AgentTesla
4fba937f1e8ae7eab73de2233f36e813fc2e4e889cbf5103f72ed642ba2e76c3
AgentTesla
5b2d98988762dc2de5918566081c7d43d9dacb82cede10c6af1cbb50ab0955a9
AgentTesla
6a2cc7556c8fb10ce705ad1b1fe835b359baed8c84071683528c6fd6a8dc0332
AgentTesla
6af32b6b849f1186317e65f84c1d59cc03ce878ca8e3706c5d7afae2389b3c64
AgentTesla
76aae91b7f532cb38c1848495595dbd02d6ded35faae729a5bfc65c69d17eef8
AgentTesla
9c127e6452920ba3691a6def9002058e51ef1897413e453c044fb47b75f3552f
AgentTesla
b326e71388c8abfb8e0e74aa913863af33e3299ad79fa42dd2d3e4c44e63da2a
AgentTesla
b8cf49555f75f9f06bdfb76150d4b3e1a01a831a7eac7b644dde084c212a43d2
AgentTesla
d364a64f878c7a01c622cfb107ebe9776a9defadfce6875fc37b703e695dfa50
AgentTesla
+ 10'885 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
keylogger stealer family:agenttesla
Link:
https://tria.ge/reports/200812-pmx5b5lwa2/
Behaviour
AgentTesla Payload
Agenttesla family
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/dec081544348d7000fcbd9ee30c3854733dc8b56f808f5dae28a21050fce03a2

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:Agenttesla_type2
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Agenttesla in memory
Reference:internal research
Rule name:CAP_HookExKeylogger
Create hunting rule
Author:Brian C. Bell -- @biebsmalwareguy
Reference:https://github.com/DFIRnotes/rules/blob/master/CAP_HookExKeylogger.yar
Rule name:win_agent_tesla_w1
Create hunting rule
Author:govcert_ch
Description:Detect Agent Tesla based on common .NET code sequences

File information

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

Malspam

AgentTesla

rar d231662d8ae16796eb756ad15634456c866d48db0597df65d3041ac81b02fc70

AgentTesla

Executable exe dec081544348d7000fcbd9ee30c3854733dc8b56f808f5dae28a21050fce03a2

(this sample)

  
Dropped by
MD5 4e38fb1ad6e43e836d93e38871705d0d
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/43943/
  
Dropped by
SHA256 d231662d8ae16796eb756ad15634456c866d48db0597df65d3041ac81b02fc70

Comments