MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a85ec6da48fcb9402c987b1be9eef89eeb7a71a8a76e0d0caeeb0610724a0bd7. 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: 8


Intelligence 8 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a85ec6da48fcb9402c987b1be9eef89eeb7a71a8a76e0d0caeeb0610724a0bd7
SHA3-384 hash: f52885d47f6e2b3ed5f9dffd757e78fd583f8e4673e33d84cb1514855e70ec6fce743136992bd341747acab53a210171
SHA1 hash: 3d25fb079e3378a8c870873b27a7d2b3ee5c245e
MD5 hash: a78b5abfe86e95bb1792335d5fc617af
humanhash: oregon-quebec-magnesium-quiet
File name:PO 01001O02.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:447'488 bytes
First seen:2020-10-26 13:28:13 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'659 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:oyZX8K/f9gKQ08/ozcUgBpCur6tD03Jq8HcD+jrp:oU8K/Vg/ozcJ64623Uuc6jd
Threatray 836 similar samples on MalwareBazaar
TLSH BC940230B0D77977D5E68BB731E8A62463F1180B162FEA58D07977E196837A08BE0D13
Reporter James_inthe_box
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
71
Origin country :
n/a
Vendor Threat Intelligence
Detection:
AgentTeslaV3
Create hunting rule
Link:
https://www.capesandbox.com/analysis/79073/
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
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/511783
Signature
.NET source code contains very large array initializations
Found evasive API chain (trying to detect sleep duration tampering with parallel thread)
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 dropped file
Machine Learning detection for sample
Multi AV Scanner detection for dropped 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)
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 AgentTesla
Yara detected AntiVM_3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 305010 Sample: PO 01001O02.exe Startdate: 26/10/2020 Architecture: WINDOWS Score: 100 54 Found malware configuration 2->54 56 Multi AV Scanner detection for dropped file 2->56 58 Sigma detected: Scheduled temp file as task from temp location 2->58 60 11 other signatures 2->60 7 PO 01001O02.exe 6 2->7         started        11 newapp.exe 5 2->11         started        13 newapp.exe 4 2->13         started        process3 file4 38 C:\Users\user\AppData\...\CrtqzXNcIwIuB.exe, PE32 7->38 dropped 40 C:\Users\user\AppData\Local\...\tmpD8E7.tmp, XML 7->40 dropped 62 Injects a PE file into a foreign processes 7->62 15 PO 01001O02.exe 2 7 7->15         started        20 schtasks.exe 1 7->20         started        64 Multi AV Scanner detection for dropped file 11->64 66 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 11->66 68 Machine Learning detection for dropped file 11->68 70 2 other signatures 11->70 22 schtasks.exe 1 11->22         started        24 newapp.exe 4 11->24         started        26 schtasks.exe 13->26         started        28 newapp.exe 13->28         started        signatures5 process6 dnsIp7 42 smtp.yandex.ru 77.88.21.158, 49742, 587 YANDEXRU Russian Federation 15->42 44 smtp.yandex.com 15->44 36 C:\Users\user\AppData\Roaming\...\newapp.exe, PE32 15->36 dropped 46 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 15->46 48 Tries to steal Mail credentials (via file access) 15->48 50 Tries to harvest and steal ftp login credentials 15->50 52 2 other signatures 15->52 30 conhost.exe 20->30         started        32 conhost.exe 22->32         started        34 conhost.exe 26->34         started        file8 signatures9 process10
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a85ec6da48fcb9402c987b1be9eef89eeb7a71a8a76e0d0caeeb0610724a0bd7/
Threat name:
ByteCode-MSIL.Infostealer.Stelega
Create hunting rule
Status:
Malicious
First seen:
2020-10-25 18:55:14 UTC
File Type:
PE (.Net Exe)
Extracted files:
4
AV detection:
25 of 29 (86.21%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=vbpmnwsi7s4ualeypmn6t3xyt3vxu4niu5xa2dfo5mdba4skbplq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
18dddb92c78a57ec4c3eaa117c7db4840e30484a4934af1905451e01d82ba245
AgentTesla
2e84cd737632fd14d2ac7bb2ad2fb04e79ddd8c35aa6ef397a52f4c139d1c9fb
AgentTesla
755bcfb03ddf8019aca959a1a5f46f1e2a8b5e10cce049ce8b80e8f4daaaa143
AgentTesla
7d7e4540b714031ca16ac11a8f127e73f9e66fb013c5a675eb68d93b6af88d0f
AgentTesla
b2b25365ac3fab2649ba188a0c113a558686c049d89bb4b8f3d7439a6e6732c0
AgentTesla
b64834eeb000aadaea8048153c40436a4aa12e1ed93b506e5fb7146465b4943c
AgentTesla
ca23807d51b989324e04dafc821c7611cf0ee25d04aa9a20c41a6b92303ca81f
AgentTesla
d5313cb45c7eafd84a3d91d1b94d98693556f528bdad1e420433aed0b54fcae3
AgentTesla
e788686b2a0e0efbf94e3f33a47e63494ca216e965191d82cd2922b8af6fe037
AgentTesla
ecd685994c047195bf8a03b9e4a4ea800b970285806a417a9160153da37f76cb
AgentTesla
+ 826 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
persistence spyware keylogger trojan stealer family:agenttesla
Link:
https://tria.ge/reports/201026-5xgkcxkcbj/
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
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: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.

  
Delivery method
Other
Cape
Cape
https://www.capesandbox.com/analysis/79073/

Comments