MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a81200d737976732a4c155049efb44ab89fab597c6a444aac67237a79e34a02f. 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: 14


Intelligence 14 IOCs YARA 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a81200d737976732a4c155049efb44ab89fab597c6a444aac67237a79e34a02f
SHA3-384 hash: 2f9dac922efa9d5e34c8a0e6a3dbd8b0e2d82e1d38ebc59dac3b7b62a9bfb92c493a962d73a3fb899591765f5e75dbf1
SHA1 hash: 399f00bb293a7fa89443f6b984d3f4ac4cadd366
MD5 hash: 2686e9df6cfb96c1365c7dbe357a77b7
humanhash: neptune-sad-texas-alabama
File name:2686e9df6cfb96c1365c7dbe357a77b7.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:1'046'528 bytes
First seen:2021-08-09 18:44:19 UTC
Last seen:2021-08-09 20:00:47 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'746 x AgentTesla, 19'631 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 24576:IfFOnPYu5LW7opbWqAuaFDHMIKQlv0LKH2/hOri3pZN7/SjmCZc:IffWaVHMIKQlvkF/DWjmm
Threatray 8'114 similar samples on MalwareBazaar
TLSH T180257BA97250B6DFC867C972C9681C64EB90B47B930BD207A05315ADEE0E987DF211F3
dhash icon 79e4e4ccccc4ccc0 (16 x AgentTesla, 3 x njrat, 3 x GuLoader)
Reporter abuse_ch
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
220
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
2686e9df6cfb96c1365c7dbe357a77b7.exe
Verdict:
Malicious activity
Analysis date:
2021-08-09 18:48:40 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/9899b50f-fd0f-4818-8e65-c33566731add

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
AgentTeslaV3
Create hunting rule
Link:
https://www.capesandbox.com/analysis/177744/
Detection(s):
SecuriteInfo.com.Artemis2686E9DF6CFB.5618.21607.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
DNS request
Sending a UDP request
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
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
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.
Malware family:
Agent Tesla
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/032ee109-836d-4642-b550-02b226dc5eb3
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/829577
Signature
.NET source code contains very large array initializations
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
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
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)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AgentTesla
Yara detected AntiVM3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 462004 Sample: aMwTTa2AfE.exe Startdate: 09/08/2021 Architecture: WINDOWS Score: 100 62 Antivirus detection for dropped file 2->62 64 Antivirus / Scanner detection for submitted sample 2->64 66 Yara detected AgentTesla 2->66 68 6 other signatures 2->68 7 aMwTTa2AfE.exe 7 2->7         started        12 MLdAu.exe 5 2->12         started        14 MLdAu.exe 2->14         started        process3 dnsIp4 52 192.168.2.1 unknown unknown 7->52 44 C:\Users\user\AppData\Roaming\AAvcpBnmI.exe, PE32 7->44 dropped 46 C:\Users\...\AAvcpBnmI.exe:Zone.Identifier, ASCII 7->46 dropped 48 C:\Users\user\AppData\Local\...\tmp239D.tmp, XML 7->48 dropped 50 C:\Users\user\AppData\...\aMwTTa2AfE.exe.log, ASCII 7->50 dropped 70 Detected unpacking (changes PE section rights) 7->70 72 Detected unpacking (overwrites its own PE header) 7->72 74 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 7->74 76 Uses schtasks.exe or at.exe to add and modify task schedules 7->76 16 aMwTTa2AfE.exe 2 5 7->16         started        20 schtasks.exe 1 7->20         started        78 Antivirus detection for dropped file 12->78 80 Machine Learning detection for dropped file 12->80 82 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 12->82 22 schtasks.exe 1 12->22         started        24 MLdAu.exe 2 12->24         started        26 MLdAu.exe 12->26         started        28 MLdAu.exe 12->28         started        84 Injects a PE file into a foreign processes 14->84 30 schtasks.exe 14->30         started        32 MLdAu.exe 14->32         started        file5 signatures6 process7 file8 40 C:\Users\user\AppData\Roaming\...\MLdAu.exe, PE32 16->40 dropped 42 C:\Users\user\...\MLdAu.exe:Zone.Identifier, ASCII 16->42 dropped 54 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 16->54 56 Tries to steal Mail credentials (via file access) 16->56 58 Tries to harvest and steal ftp login credentials 16->58 60 2 other signatures 16->60 34 conhost.exe 20->34         started        36 conhost.exe 22->36         started        38 conhost.exe 30->38         started        signatures9 process10
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/a81200d737976732a4c155049efb44ab89fab597c6a444aac67237a79e34a02f/
Threat name:
ByteCode-MSIL.Packed.Confuser
Create hunting rule
Status:
Malicious
First seen:
2021-08-09 18:45:08 UTC
AV detection:
13 of 28 (46.43%)
Threat level:
  1/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=vajabvzxs5ttfjgbkucj562evoe7vnmxy2sejkwgoi32phruuaxq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
0ac9a62fee3468f5e7af72d95bfc56eb7c4bcc5e05af83333eb6db747e8e80bf
AgentTesla
398970d0c4754fa90d6f04c15fbf6d0bb88fb05d63dc4d7b919255ed774e3899
AgentTesla
502b8c6aac5f16a7cf050c80da53960d264501951d3da502780fc05c507984dc
AgentTesla
723119cd3689ab3144bd1beaf91b93d11c47a0d2ac504d0e11569540b89ab3d6
AgentTesla
76938d4e2c8778bce2177462dd2875d041e69e43036c0b8e3c2f8b6e650232dd
AgentTesla
+ 8'104 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/210809-yb4zt51926/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
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
Unpacked files
SH256 hash:
ddf52f39cd2b81d895df47d378ec80bd50e5d83822ead28f72e4d69fdf66a390
MD5 hash:
0c0e6dcbb4de2ab31184f7d5611fbb21
SHA1 hash:
dde3c5813e72285c4561b63ad706d5c0ec251762
Link:
https://www.unpac.me/results/a50a29e6-a52a-48c4-b356-b0810249af3f/
SH256 hash:
3c9f552765104183e47e238fdae5ff82210b46af1f9b511ee8aa9e41f19b4077
MD5 hash:
7aed072fc2b30310efc248a2bafc7dda
SHA1 hash:
9e956bce77fc925854d6800b6fb4647dfb813e26
Link:
https://www.unpac.me/results/a50a29e6-a52a-48c4-b356-b0810249af3f/
SH256 hash:
ed0dd1e2260da7b03c8b80e0b45e8fef44be722c1e8c41e078c1a25ed0d18ecc
MD5 hash:
6057ce35bd926dd6d49dedfa9cc18372
SHA1 hash:
1f4e44e1740ffbd91129ac3a37d22845bc52c158
Link:
https://www.unpac.me/results/a50a29e6-a52a-48c4-b356-b0810249af3f/
SH256 hash:
a81200d737976732a4c155049efb44ab89fab597c6a444aac67237a79e34a02f
MD5 hash:
2686e9df6cfb96c1365c7dbe357a77b7
SHA1 hash:
399f00bb293a7fa89443f6b984d3f4ac4cadd366
Link:
https://www.unpac.me/results/a50a29e6-a52a-48c4-b356-b0810249af3f/
Malware family:
Agent Tesla v3
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/a81200d73797/report/overview.html
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/a81200d737976732a4c155049efb44ab89fab597c6a444aac67237a79e34a02f

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:AgentTeslaV3
Create hunting rule
Author:ditekshen
Description:AgentTeslaV3 infostealer payload
Rule name:MALWARE_Win_AgentTeslaV3
Create hunting rule
Author:ditekSHen
Description:AgentTeslaV3 infostealer payload
Rule name:pe_imphash
Create hunting rule
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
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.

Web download

AgentTesla

Executable exe a81200d737976732a4c155049efb44ab89fab597c6a444aac67237a79e34a02f

(this sample)

Cape
Cape
https://www.capesandbox.com/analysis/177744/
  
URLhaus
https://urlhaus.abuse.ch/url/1430278/
  
Delivery method
Distributed via web download

Comments