MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1bb2e1d32abda0d9df006925e4a49ca8f2528a21491f82b231205ddc244d277b. 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 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 1bb2e1d32abda0d9df006925e4a49ca8f2528a21491f82b231205ddc244d277b
SHA3-384 hash: 37affdf0a144c158f45b94e590d7141fc3d3b1c407dc56dca9478396c8f50aea7d7ee881e54c15c097dab0f3aeef4067
SHA1 hash: 2cc296d7fc144ee6131979a066939d18deee7266
MD5 hash: b9f044e3a06adb9eba2d4c1cb3950bc9
humanhash: lake-uniform-july-orange
File name:Draft BL-Copy.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:748'032 bytes
First seen:2020-07-30 07:44:05 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:4QgDM2YWRHDYP1gigvOszCyy+imtA15BuGuZ9I16B5pOgL:4/Y2vRjkuDvOxr+tSBJO
Threatray 10'674 similar samples on MalwareBazaar
TLSH 17F4C0447B90E51EC6AB8F7BCAD44800E9B8E59A4B17D387B48133FF18CE39E99015B5
Reporter abuse_ch
Tags:AgentTesla Endurance exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: 192-254-193-67.unifiedlayer.com
Sending IP: 192.254.193.67
From: Chavanun/Mastertrans <marketing@mastertrans.co.th>
Subject: Urgent: CONFIRM DRAFT B/L BOOKING NO I488156320
Attachment: Draft BL-Copy.gz (contains "Draft BL-Copy.exe")

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:
n/a
Link:
https://www.capesandbox.com/analysis/35391/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
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
Creating a file in the %AppData% subdirectories
Reading critical registry keys
Setting a keyboard event handler
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Stealing user critical data
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/403341
Signature
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Installs a global keyboard hook
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
May check the online IP address of the machine
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
Sigma detected: Scheduled temp file as task from temp location
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 Agent Tesla Trojan
Yara detected AgentTesla
Yara detected AntiVM_3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 253906 Sample: Draft BL-Copy.exe Startdate: 30/07/2020 Architecture: WINDOWS Score: 100 49 g.msn.com 2->49 51 checkip.us-east-1.prod.check-ip.aws.a2z.com 2->51 53 3 other IPs or domains 2->53 67 Found malware configuration 2->67 69 Malicious sample detected (through community Yara rule) 2->69 71 Sigma detected: Scheduled temp file as task from temp location 2->71 73 10 other signatures 2->73 8 Draft BL-Copy.exe 7 2->8         started        12 Window Updater.exe 3 2->12         started        14 Window Updater.exe 2 2->14         started        signatures3 process4 file5 33 C:\Users\user\AppData\...\&startupname&.exe, PE32 8->33 dropped 35 C:\Users\user\AppData\Local\...\tmpD5C7.tmp, XML 8->35 dropped 37 C:\...\&startupname&.exe:Zone.Identifier, ASCII 8->37 dropped 39 C:\Users\user\...\Draft BL-Copy.exe.log, ASCII 8->39 dropped 75 Injects a PE file into a foreign processes 8->75 16 Draft BL-Copy.exe 17 19 8->16         started        21 schtasks.exe 1 8->21         started        23 Window Updater.exe 16 12->23         started        25 Window Updater.exe 14->25         started        signatures6 process7 dnsIp8 41 smtp.yandex.ru 77.88.21.158, 49724, 49728, 49732 YANDEXRU Russian Federation 16->41 43 checkip.us-east-1.prod.check-ip.aws.a2z.com 18.235.112.207, 49731, 80 AMAZON-AESUS United States 16->43 47 3 other IPs or domains 16->47 29 C:\Users\user\AppData\...\Window Updater.exe, PE32 16->29 dropped 31 C:\...\Window Updater.exe:Zone.Identifier, ASCII 16->31 dropped 55 Hides that the sample has been downloaded from the Internet (zone.identifier) 16->55 57 Installs a global keyboard hook 16->57 27 conhost.exe 21->27         started        45 smtp.yandex.com 23->45 59 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 23->59 61 Tries to steal Mail credentials (via file access) 23->61 63 Tries to harvest and steal ftp login credentials 23->63 65 Tries to harvest and steal browser information (history, passwords, etc) 23->65 file9 signatures10 process11
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/1bb2e1d32abda0d9df006925e4a49ca8f2528a21491f82b231205ddc244d277b/
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Create hunting rule
Status:
Malicious
First seen:
2020-07-30 07:45:07 UTC
AV detection:
22 of 29 (75.86%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=dozoduzkxwqntxyanes6jje4vdzffcrbjepyfmrrebo5yjcne55q._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
04a4889f216c935b00b1b5616cb4b022562fb07a9cd8f45ecbe4d1b76c9499b7
AgentTesla
0bf5908391baa73d4958fa8bd479d8eaf02bb840ac088cc894201da001f5160f
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474f21c4bd0ed4ec53008cb87cb30351fd67ec6577b88aa3bd954628ede6d16d
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49e021e757dd9a8cabe9782e8d18de22ea5347f3cc180f02186ba66a77dcc055
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51a8fdacb7b988afa143a6084d169c4f95588451414a7acfe94ba75525864785
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64baf83c9b911fb05c284a8bb464c930d48ce9e50b8450d707bf78df0b169942
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7fc2806d0821e5367c81773db3f59020ca283312b9975ef3ee19c139af0a4d69
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88ec084c0f53adb87c7b5fb01c8e5756ebfd3c98526d16e45d5d1b989263e29c
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8c254637c5c98fe6755a44e5ea6feba18d0a17c4ad53e8d791277390060c29e5
AgentTesla
+ 10'664 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  7/10
Tags:
spyware persistence
Link:
https://tria.ge/reports/200730-62kd3nl63x/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of SetWindowsHookEx
Suspicious use of AdjustPrivilegeToken
Creates scheduled task(s)
Suspicious use of WriteProcessMemory
Suspicious use of SetWindowsHookEx
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Creates scheduled task(s)
Suspicious use of SetThreadContext
Suspicious use of SetThreadContext
Looks up external IP address via web service
Adds Run key to start application
Looks up external IP address via web service
Adds Run key to start application
Reads user/profile data of web browsers
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads data files stored by FTP clients
Reads user/profile data of web browsers
Reads user/profile data of local email clients
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.45
Link:
https://yomi.yoroi.company/submissions/1bb2e1d32abda0d9df006925e4a49ca8f2528a21491f82b231205ddc244d277b

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

gz 7ddfea46f5d682447dc796a3a433c34ee9460023abc934d710b0c7f50fd2abac

AgentTesla

Executable exe 1bb2e1d32abda0d9df006925e4a49ca8f2528a21491f82b231205ddc244d277b

(this sample)

  
Dropped by
MD5 078db4d9f514e2874e9d8da0b785163a
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/35391/
  
Dropped by
SHA256 7ddfea46f5d682447dc796a3a433c34ee9460023abc934d710b0c7f50fd2abac

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