MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 cbf136bcf2b8a2b127edb351d66c62da8e9fefa572d5ceb4210af5fc96cb23b1. 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: cbf136bcf2b8a2b127edb351d66c62da8e9fefa572d5ceb4210af5fc96cb23b1
SHA3-384 hash: ae1aaaaa348c4cad937f11d29ac2ba48802afd8eac7e1b4c31954726b87127dbadcddafd61dead5632bf0fc59188f244
SHA1 hash: f7744371d0db3ea868de591866da3ab78edd7c75
MD5 hash: f454bda25e754ff811d5f24faea96686
humanhash: utah-colorado-massachusetts-victor
File name:8013667PDF.scr
Download: download sample
Signature AgentTesla
Create hunting rule
File size:838'144 bytes
First seen:2020-08-11 13:58:23 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 6144:yBz+gcLSxbH3cAUyeK2jPTxh6tXVhy5GeaUQ2o+LoLJv4i4Qq3iLg+lBDd0+Mhox:yyabXcAUYswXz3RUboL64BFMuMnXU
Threatray 10'753 similar samples on MalwareBazaar
TLSH A105183E7601E509D13C5572C494A6F122716D8BFE02CA1F25CA3F9E7E3368B374698A
Reporter abuse_ch
Tags:AgentTesla geo ITA scr


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: alpenwald.it
Sending IP: 104.168.148.112
From: Amministrazione<amministrazione@alpenwald.it>
Subject: Re: fattura a saldo lavori etra bassano del grappa
Attachment: Fattura a saldo lavor8013667PDF.img (contains "8013667PDF.scr")

AgentTesla SMTP exfil server:
smtp.yandex.com:587

Intelligence

File Origin
# of uploads :
1
# of downloads :
77
Origin country :
n/a
Vendor Threat Intelligence
Detection:
AgentTeslaV2
Create hunting rule
Link:
https://www.capesandbox.com/analysis/43469/
Detection(s):
SecuriteInfo.com.Heur.MSIL.Pretoria.1.914.4167.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:
76 / 100
Link:
https://www.joesandbox.com/analysis/419155
Signature
Allocates memory in foreign processes
Creates an autostart registry key pointing to binary in C:\Windows
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: 261958 Sample: 8013667PDF.scr Startdate: 11/08/2020 Architecture: WINDOWS Score: 76 34 Yara detected AgentTesla 2->34 36 Sigma detected: Add file from suspicious location to autostart registry 2->36 7 8013667PDF.exe 7 2->7         started        10 pcalua.exe 1 2->10         started        12 pcalua.exe 1 1 2->12         started        process3 file4 28 C:\Users\user\AppData\Roaming\chrom.exe, PE32 7->28 dropped 30 C:\Users\user\AppData\...\AddInProcess32.exe, PE32 7->30 dropped 32 C:\Users\user\...\chrom.exe:Zone.Identifier, ASCII 7->32 dropped 14 chrom.exe 2 7->14         started        17 cmd.exe 1 7->17         started        19 chrom.exe 3 10->19         started        process5 signatures6 42 Writes to foreign memory regions 14->42 44 Allocates memory in foreign processes 14->44 46 Injects a PE file into a foreign processes 14->46 21 AddInProcess32.exe 2 14->21         started        24 reg.exe 1 1 17->24         started        26 conhost.exe 17->26         started        process7 signatures8 38 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 21->38 40 Creates an autostart registry key pointing to binary in C:\Windows 24->40
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/cbf136bcf2b8a2b127edb351d66c62da8e9fefa572d5ceb4210af5fc96cb23b1/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2020-08-11 14:00:10 UTC
AV detection:
21 of 27 (77.78%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=zpytnphsxcrlcj7nwni5m3dc3khj735folk45nbbbl27zfwleoyq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
269770044a2b90764179e7d03229a3977e6034257d036c9f3d977803107f8b24
AgentTesla
354edf67a7ef4bce7dc3b2c20641a5a84407d26b880b21296150aa141dc3089d
AgentTesla
3ddfcc0ce0a57e7f3131d0ba603d6516f00c6cf94f67e79ab38a7e8f922f74bc
AgentTesla
616ab10592901307ae43cc24dd1387523a9f4998a7cef709354f304beadfb299
AgentTesla
653f9230a0dfc61996a0213363c938cc629fe374f877febd3df485369d1f476a
AgentTesla
6b289f4c862c4205a7debaa7217dfad7e66b56dcd3274e9b4ee530aa0e380037
AgentTesla
891cd769c1731bfaa4051041a3f48cab616cadc9ddc94cc090d3d6d3194015fa
AgentTesla
8be1266645d388fa35124c58831cbd83fdc9b6faac7ad44ddaf4b0f6b9d2fd09
AgentTesla
dcbfc03cfe9523c25ab335f599cebcbbe8f2439ef7ab973aa9ec0330e4e7d11f
AgentTesla
f79c05650757098e0947e71640242ce2c872e27cc48cd90b812c948e6dc16767
AgentTesla
+ 10'743 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
keylogger stealer family:agenttesla
Link:
https://tria.ge/reports/200811-catmvgt6de/
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/cbf136bcf2b8a2b127edb351d66c62da8e9fefa572d5ceb4210af5fc96cb23b1

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 b9f737d24b6c83f72e6072b658b5548a815daff862775b26094811b94036a7e7

AgentTesla

Executable exe cbf136bcf2b8a2b127edb351d66c62da8e9fefa572d5ceb4210af5fc96cb23b1

(this sample)

  
Dropped by
MD5 b1911da1bfeaf4edc995733830f709dc
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/43469/
  
Dropped by
SHA256 b9f737d24b6c83f72e6072b658b5548a815daff862775b26094811b94036a7e7

Comments