MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3a5c30055449247f22c553ec85ef739642e65e1046dac93d9ead539e2fc4fd07. 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: 11


Intelligence 11 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 3a5c30055449247f22c553ec85ef739642e65e1046dac93d9ead539e2fc4fd07
SHA3-384 hash: 41b0f7cb8df26b6a55424305878806394a55ff7e171a8825b8ba2829b7c770dfec84a5de998b288119f74f5cf1f07895
SHA1 hash: 6e8fbf7e0efc548b622d2d8685139e8ea3feb101
MD5 hash: 0df0d3fc7ea641a3cc697df98380149f
humanhash: beryllium-sweet-mango-violet
File name:MAR 2021.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:873'984 bytes
First seen:2021-04-12 13:59:22 UTC
Last seen:2021-04-12 16:25:07 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 24576:RdJKIyTc7VQoljgS/73HOr0BEc5ffrQ3jG:5KIGqtb/73ur+t5fzKy
Threatray 3'879 similar samples on MalwareBazaar
TLSH 890579037EC5DA9CF0D84A3E55FD40227FA3D896490E9FC658CBB7AD05E2906F521A23
Reporter cocaman
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
3
# of downloads :
140
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
MAR 2021.exe
Verdict:
Malicious activity
Analysis date:
2021-04-12 14:24:54 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/6e9b2581-cf3e-46c4-b09d-bc29ee992714

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/133778/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.645.23901.3358.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/673114
Signature
.NET source code contains very large array initializations
Allocates memory in foreign processes
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Machine Learning detection for sample
Modifies the hosts file
Multi AV Scanner detection for submitted file
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)
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)
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected AntiVM3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 385506 Sample: MAR 2021.exe Startdate: 12/04/2021 Architecture: WINDOWS Score: 100 45 Found malware configuration 2->45 47 Multi AV Scanner detection for submitted file 2->47 49 Yara detected AgentTesla 2->49 51 4 other signatures 2->51 6 MAR 2021.exe 3 2->6         started        10 RXhUFA.exe 2 2->10         started        12 RXhUFA.exe 1 2->12         started        process3 file4 25 C:\Users\user\AppData\...\MAR 2021.exe.log, ASCII 6->25 dropped 53 Writes to foreign memory regions 6->53 55 Allocates memory in foreign processes 6->55 57 Injects a PE file into a foreign processes 6->57 14 RegSvcs.exe 2 8 6->14         started        19 RegSvcs.exe 6->19         started        21 conhost.exe 10->21         started        23 conhost.exe 12->23         started        signatures5 process6 dnsIp7 31 smtp.vivaldi.net 31.209.137.12, 49720, 49722, 587 HRINGDU-ASIS Iceland 14->31 27 C:\Users\user\AppData\Roaming\...\RXhUFA.exe, PE32 14->27 dropped 29 C:\Windows\System32\drivers\etc\hosts, ASCII 14->29 dropped 33 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 14->33 35 Tries to steal Mail credentials (via file access) 14->35 37 Tries to harvest and steal ftp login credentials 14->37 43 3 other signatures 14->43 39 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 19->39 41 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 19->41 file8 signatures9
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/3a5c30055449247f22c553ec85ef739642e65e1046dac93d9ead539e2fc4fd07/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-04-12 07:17:05 UTC
File Type:
PE (.Net Exe)
Extracted files:
16
AV detection:
28 of 47 (59.57%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=hjodabkujesh6iwfkpwil33tszbomxqqi3nmspm6vvjz4l6e7udq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
0063947555fada876477c4e186d19517a3894d56153477590b0d6367ec80fe2d
AgentTesla
1cdb81091d98d217a4cdc8c570df9178e797af21a9d4b1bc39c49766322ae4bf
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1e358cdd08320d9b811ec7772ac2d2e3eb2a4c2d61da189a3a6aaa0cff000c97
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225292deee765b9ce907a03a47645c52201a14dfb962345096fd30385fc63eae
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4213712c7128ddb317f8a5dc72762039d3c5c0f279270609f7eed1b771620a5a
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793a4b11f420fac22319c4ea9c2f42d25f3e99e830e6fe292ecf9def80b00780
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8b8f8698c1165d37f1dcf607bfc31a0d8f884389b26ebbd106bca128f85e40e6
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e7ccbe9dfaa198263b85336d9f89a775f7601070708ce65b9e4612332e0207b8
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ebe52ea7df6472fc812bbb2d9781d42f1262ce97193e080f76c3a7782c789cc4
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fa74f2f2fde3b73f53ee495fdfe25b5fb3866f240e933e9a5dfad695c8d9f962
AgentTesla
+ 3'869 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/210412-h8a4vh9jls/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
AgentTesla Payload
AgentTesla
Unpacked files
SH256 hash:
5e0f3da625a479a5e7e807b5f09c889d95474139410b312ba3a39bcb05976729
MD5 hash:
3d20c2ea9ac04e1707f853bb1780bc18
SHA1 hash:
805e90b023eb92d44bbe11daefce6edbe872cb74
Link:
https://www.unpac.me/results/237801eb-59c9-40b6-99fb-dfb8a6e73e0b/
SH256 hash:
3a5c30055449247f22c553ec85ef739642e65e1046dac93d9ead539e2fc4fd07
MD5 hash:
0df0d3fc7ea641a3cc697df98380149f
SHA1 hash:
6e8fbf7e0efc548b622d2d8685139e8ea3feb101
Link:
https://www.unpac.me/results/237801eb-59c9-40b6-99fb-dfb8a6e73e0b/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
AgentTesla
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/3a5c30055449247f22c553ec85ef739642e65e1046dac93d9ead539e2fc4fd07

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:ach_AgentTesla_20200929
Create hunting rule
Author:abuse.ch
Description:Detects AgentTesla PE
Rule name:MALWARE_Win_AgentTeslaV3
Create hunting rule
Author:ditekSHen
Description:AgentTeslaV3 infostealer payload
Rule name:win_agent_tesla_v1
Create hunting rule
Author:Johannes Bader @viql
Description:detects Agent Tesla

File information

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

Malspam

AgentTesla

zip 94cf6a006229ebd5b43fd23823b11d91f51a2ed5ddb10a285bc1d92b4f22a052

AgentTesla

Executable exe 3a5c30055449247f22c553ec85ef739642e65e1046dac93d9ead539e2fc4fd07

(this sample)

  
Delivery method
Other
  
Dropped by
SHA256 94cf6a006229ebd5b43fd23823b11d91f51a2ed5ddb10a285bc1d92b4f22a052
Cape
Cape
https://www.capesandbox.com/analysis/133778/

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