MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b9a1d0cd488fc07baa2dc4a8d2621f6e091964e7f86bc690f40b5ab7e3a305d1. 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: b9a1d0cd488fc07baa2dc4a8d2621f6e091964e7f86bc690f40b5ab7e3a305d1
SHA3-384 hash: f935b79aa6a457127fbea7edbcb5a661677f1abd7537091e574efbbdb0a881bc3e8c8e20a86c185ca85a3153413d01f4
SHA1 hash: cbe8fb82ab6600d71b5a3495fed4b030523f77e5
MD5 hash: 238a8e24b85ebb0d2b833578fa60ce17
humanhash: lima-colorado-green-massachusetts
File name:IMG SCAN COPY #TR45678_jpeg - Copy.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:660'992 bytes
First seen:2020-08-04 06:09:46 UTC
Last seen:2020-08-04 06:44:47 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'600 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 6144:QHAgbCa8sGQTpMRyFqhxGRe9hcRAOG7K/kRR/9s0iaeyUg+ruLSuJ+p0:QHX8kTpHXyJR/rqg
Threatray 10'945 similar samples on MalwareBazaar
TLSH 0DE409287A82A414DA3D093648E969D1B7B17D862B01CB0F7AD6375C5E237CF3F0625E
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: llsg976-a17.servidoresdns.net
Sending IP: 82.223.190.14
From: Mehmet MetinKaya <pedidos@maquinarialdm.com>
Subject: Acil sipariş talebi
Attachment: IMG SCAN COPY TR45678_jpeg.img (contains "IMG SCAN COPY #TR45678_jpeg - Copy.exe")

AgentTesla SMTP exfil server:
mail.infotaxis.tk:587

Intelligence

File Origin
# of uploads :
2
# of downloads :
66
Origin country :
n/a
Vendor Threat Intelligence
Detection:
AgentTeslaV2
Create hunting rule
Link:
https://www.capesandbox.com/analysis/38147/
Detection(s):
SecuriteInfo.com.BackDoor.SpyBotNET.25.28690.18851.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% subdirectories
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:
57 / 100
Link:
https://www.joesandbox.com/analysis/408593
Signature
.NET source code contains very large array initializations
Allocates memory in foreign processes
Creates an autostart registry key pointing to binary in C:\Windows
Injects a PE file into a foreign processes
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: 256531 Sample: IMG SCAN COPY #TR45678_jpeg... Startdate: 04/08/2020 Architecture: WINDOWS Score: 57 35 Yara detected AgentTesla 2->35 37 Sigma detected: Add file from suspicious location to autostart registry 2->37 39 .NET source code contains very large array initializations 2->39 7 IMG SCAN COPY #TR45678_jpeg - Copy.exe 7 2->7         started        11 pcalua.exe 1 1 2->11         started        13 pcalua.exe 1 2->13         started        process3 dnsIp4 33 192.168.2.1 unknown unknown 7->33 27 C:\Users\user\AppData\...\firefoxx.exe, PE32 7->27 dropped 29 C:\Users\user\AppData\...\InstallUtil.exe, PE32 7->29 dropped 31 C:\Users\...\firefoxx.exe:Zone.Identifier, ASCII 7->31 dropped 15 firefoxx.exe 3 7->15         started        18 cmd.exe 1 7->18         started        file5 process6 signatures7 43 Writes to foreign memory regions 15->43 45 Allocates memory in foreign processes 15->45 47 Injects a PE file into a foreign processes 15->47 20 InstallUtil.exe 2 15->20         started        22 reg.exe 1 1 18->22         started        25 conhost.exe 18->25         started        process8 signatures9 41 Creates an autostart registry key pointing to binary in C:\Windows 22->41
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/b9a1d0cd488fc07baa2dc4a8d2621f6e091964e7f86bc690f40b5ab7e3a305d1/
Threat name:
ByteCode-MSIL.Backdoor.Bladabhindi
Create hunting rule
Status:
Malicious
First seen:
2020-08-03 18:03:16 UTC
AV detection:
23 of 29 (79.31%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=xgq5btkir7ahxkrnysuneyq7nyerszhh7bv4nehubnnlpy5daxiq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
0c92c000cf6c2379961f35355527b1886d053245d90a584d8d7191bcb6ebccb6
AgentTesla
5568021e42a81a2755fd6d968efa50b13f99a9997d8973097231079de84832ad
AgentTesla
70e55061f4e965a512c042bc1541f3d4e5a910a493ffb63d5a123f9c82a94f70
AgentTesla
7e393bcd518415ad70e7a6924c8798391400554fce9c2a639a891dcda4f8e230
AgentTesla
916af86a5bfa7f558b376344b9aaf6e4440d21f2b38da0bb9fd60b1d4a578809
AgentTesla
adbdc4cbb6b8805700fcfd618e763872f6960f5989a62c9cdffc961d9b0f3e39
AgentTesla
af7aa3b76b8d11ba1d518006e2b4ea6d574573bd2bba6594a57825e33f9ed87c
AgentTesla
b762913bb02e0e7f3b2dd7be4b813923fbb0389e699d2b6f846bfecad6c8c72a
AgentTesla
b81898c8e22774e33768ab962a3acca0c718197c2b4434f3ae51761569bd7ccb
AgentTesla
d0d7da6edab70ca763cd813715907daeaafb8f0245a55cf4074446bb218dfd6f
AgentTesla
+ 10'935 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
keylogger stealer persistence spyware trojan family:agenttesla
Link:
https://tria.ge/reports/200804-4d31hrj7s2/
Behaviour
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
Reads user/profile data of web browsers
Reads data files stored by FTP clients
Loads dropped DLL
Reads user/profile data of local email clients
Executes dropped EXE
AgentTesla Payload
AgentTesla
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/b9a1d0cd488fc07baa2dc4a8d2621f6e091964e7f86bc690f40b5ab7e3a305d1

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

img 90e16a1e577ad088703956772d127ad44c9860f40771a89537842fc4995d401e

AgentTesla

Executable exe b9a1d0cd488fc07baa2dc4a8d2621f6e091964e7f86bc690f40b5ab7e3a305d1

(this sample)

  
Dropped by
MD5 bbe80e1443dddab2175dc547f44dfabb
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 90e16a1e577ad088703956772d127ad44c9860f40771a89537842fc4995d401e
Cape
Cape
https://www.capesandbox.com/analysis/38147/

Comments