MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a1b6b0738cd107907d5424d385b9471ebac0abcef1d2f7febd2762d69d39eeff. 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 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a1b6b0738cd107907d5424d385b9471ebac0abcef1d2f7febd2762d69d39eeff
SHA3-384 hash: b66520849c75289fbb995b07bcf0cded966eada09cf7e35389041af8291179de2094af0c4056811bdb2cf4c73670380e
SHA1 hash: 83ac1acc06e79e173b0a2ac06ea4b9054bd6699f
MD5 hash: 6443297f2c3497f4161e2a0685b903e1
humanhash: california-robin-double-nine
File name:Payment Copy.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:507'392 bytes
First seen:2020-08-19 09:25:40 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:pQzVdURmUw67Mah3FNX+T8JYU6vItXmqUqOLhxWndEEz1zA8:CzVdUndFNX+TzBvItXmqChxWd
Threatray 10'331 similar samples on MalwareBazaar
TLSH 29B4F1287154739FC85F8C3BD9A95DB597603277671BF242880399E6AE0CB928F009F7
Reporter abuse_ch
Tags:AgentTesla exe HSBC


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: rs108.zol.co.zw
Sending IP: 197.211.212.76
From: HSBC <noreply@hsbcbank.com>
Subject: Fw:Re:Payment Advice
Attachment: Payment Copy.iso (contains "Payment Copy.exe")

Intelligence

File Origin
# of uploads :
1
# of downloads :
76
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/48335/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Deleting a recently created file
Unauthorized injection to a recently created process
Creating a file
Using the Windows Management Instrumentation requests
Enabling autorun by creating a file
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/437250
Signature
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
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)
Sigma detected: Scheduled temp file as task from temp location
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
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 access)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AgentTesla
Yara detected AntiVM_3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 271101 Sample: Payment Copy.exe Startdate: 19/08/2020 Architecture: WINDOWS Score: 100 68 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->68 70 Found malware configuration 2->70 72 Sigma detected: Scheduled temp file as task from temp location 2->72 74 9 other signatures 2->74 7 JcoGam.exe 5 2->7         started        10 Payment Copy.exe 7 2->10         started        13 JcoGam.exe 4 2->13         started        process3 file4 76 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 7->76 78 Machine Learning detection for dropped file 7->78 80 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 7->80 15 JcoGam.exe 7->15         started        19 schtasks.exe 7->19         started        44 C:\Users\user\AppData\Roaming\BxhvBKL.exe, PE32 10->44 dropped 46 C:\Users\user\...\BxhvBKL.exe:Zone.Identifier, ASCII 10->46 dropped 48 C:\Users\user\AppData\Local\...\tmpDFE3.tmp, XML 10->48 dropped 50 C:\Users\user\...\Payment Copy.exe.log, ASCII 10->50 dropped 82 Injects a PE file into a foreign processes 10->82 21 Payment Copy.exe 2 5 10->21         started        24 schtasks.exe 1 10->24         started        26 Payment Copy.exe 10->26         started        28 Payment Copy.exe 10->28         started        30 schtasks.exe 13->30         started        32 JcoGam.exe 13->32         started        signatures5 process6 dnsIp7 52 smtp.pengteh.com 15->52 58 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 15->58 60 Tries to steal Mail credentials (via file access) 15->60 62 Tries to harvest and steal ftp login credentials 15->62 64 Tries to harvest and steal browser information (history, passwords, etc) 15->64 34 conhost.exe 19->34         started        54 smtp.pengteh.com 21->54 56 us2.smtp.mailhostbox.com 208.91.199.225, 49743, 49744, 587 PUBLIC-DOMAIN-REGISTRYUS United States 21->56 40 C:\Users\user\AppData\Roaming\...\JcoGam.exe, PE32 21->40 dropped 42 C:\Users\user\...\JcoGam.exe:Zone.Identifier, ASCII 21->42 dropped 66 Hides that the sample has been downloaded from the Internet (zone.identifier) 21->66 36 conhost.exe 24->36         started        38 conhost.exe 30->38         started        file8 signatures9 process10
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a1b6b0738cd107907d5424d385b9471ebac0abcef1d2f7febd2762d69d39eeff/
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Create hunting rule
Status:
Malicious
First seen:
2020-08-19 09:27:09 UTC
AV detection:
22 of 28 (78.57%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=ug3la44m2edza7kuetjylokhd25mbk6o6hjpp7v5e5rnnhjz537q._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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AgentTesla
+ 10'321 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/200819-xsvezjm6ej/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
AgentTesla Payload
AgentTesla
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: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_g2
Create hunting rule
Author:Daniel Plohmann <daniel.plohmann@fkie.fraunhofer.de>
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

iso f39349314af59af895efd5809e28507629e5be7bd7b9d989ef8b43376a61f29d

AgentTesla

Executable exe a1b6b0738cd107907d5424d385b9471ebac0abcef1d2f7febd2762d69d39eeff

(this sample)

  
Dropped by
MD5 44b883d8ceef102c32c0deb5852a496e
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/48335/
  
Dropped by
SHA256 f39349314af59af895efd5809e28507629e5be7bd7b9d989ef8b43376a61f29d

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