MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a1071d7b923717b0ef2dbc6fa2549510f1a4921273828037753c27a77b2abfbe. 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: a1071d7b923717b0ef2dbc6fa2549510f1a4921273828037753c27a77b2abfbe
SHA3-384 hash: 8e97c973c764c2588c636fbda5eae2df7c9e3ebab4172138c6f2bf99ebf16c9064d707194483a05e1c28eebc9b460e0f
SHA1 hash: 3b0201887b0cb189c8d04ca69727b4f303bb448a
MD5 hash: 884690bd677d850f31eb50db49f18dc1
humanhash: seven-illinois-moon-network
File name:overdue_account.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:731'648 bytes
First seen:2021-03-04 18:57:46 UTC
Last seen:2021-03-05 13:31:42 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'647 x AgentTesla, 19'451 x Formbook, 12'201 x SnakeKeylogger)
ssdeep 12288:f8teodM4fNDVbUs2yxV4NpPcgv0GC3yTGvs+2XDk5TpTXF8gy+z7HYob:KY50GCPLGk7Wd+z7H
Threatray 2'991 similar samples on MalwareBazaar
TLSH 83F46CBD244F60EEC1B3BBB22B95A46C82597E51FF4B602B2040355B4537D2EFB83924
Reporter GovCERT_CH
Tags:AgentTesla

Intelligence

File Origin
# of uploads :
4
# of downloads :
182
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
overdue_account.exe
Verdict:
Malicious activity
Analysis date:
2021-03-04 19:01:11 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/65110a60-29df-4b92-86cb-41bb62b2e2c3

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/122344/
Detection(s):
SecuriteInfo.com.Trojan.GenericKD.45831049.30658.26081.UNOFFICIAL
Create hunting rule

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
Creating a file
Using the Windows Management Instrumentation requests
Creating a file in the %AppData% subdirectories
Forced shutdown of a system process
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Enabling autorun by creating a file
Unauthorized injection to a system process
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/629065
Signature
.NET source code contains very large array initializations
.NET source code contains very large strings
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Modifies the hosts file
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
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
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
Writes to foreign memory regions
Yara detected AgentTesla
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 363505 Sample: overdue_account.exe Startdate: 04/03/2021 Architecture: WINDOWS Score: 100 48 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->48 50 Found malware configuration 2->50 52 Multi AV Scanner detection for dropped file 2->52 54 6 other signatures 2->54 7 overdue_account.exe 6 2->7         started        11 ppptOL.exe 2 2->11         started        13 ppptOL.exe 1 2->13         started        process3 file4 32 C:\Users\user\AppData\Roaming\rBAqjmlZe.exe, PE32 7->32 dropped 34 C:\Users\user\AppData\Local\...\tmpDF6B.tmp, XML 7->34 dropped 36 C:\Users\user\...\overdue_account.exe.log, ASCII 7->36 dropped 56 Writes to foreign memory regions 7->56 58 Injects a PE file into a foreign processes 7->58 15 RegSvcs.exe 2 4 7->15         started        20 schtasks.exe 1 7->20         started        22 conhost.exe 11->22         started        24 conhost.exe 13->24         started        signatures5 process6 dnsIp7 38 webmail.mdist.us 192.185.226.148, 49771, 587 UNIFIEDLAYER-AS-1US United States 15->38 28 C:\Users\user\AppData\Roaming\...\ppptOL.exe, PE32 15->28 dropped 30 C:\Windows\System32\drivers\etc\hosts, ASCII 15->30 dropped 40 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 15->40 42 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 15->42 44 Tries to steal Mail credentials (via file access) 15->44 46 5 other signatures 15->46 26 conhost.exe 20->26         started        file8 signatures9 process10
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/a1071d7b923717b0ef2dbc6fa2549510f1a4921273828037753c27a77b2abfbe/
Threat name:
ByteCode-MSIL.Trojan.Pwsx
Create hunting rule
Status:
Malicious
First seen:
2021-03-04 05:36:22 UTC
AV detection:
10 of 48 (20.83%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=uedr264sg4l3b3znxrx2evevcdy2jeqsoobian3vhqt2o6zkx67a._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
181929c58e5ce4833a2847c9ff077dd87e8c0128793217d7e690311087ecc80a
AgentTesla
27dcd9778b97a02454b9d43e22c188cbc7028367b311496b463a6f7d773e9f6f
AgentTesla
569d9358801eb518b152cb73009131508a3f14b136b0eb80025ccf438865a440
AgentTesla
637c0976355242b7558217bdbd1633f865293d3c1868f4d0abeb153464044d91
AgentTesla
809815c63e37c07507539aa45956ac24b05ea3988866850fc565ad8616d2037a
AgentTesla
b9c82068f2880f34b3bf0dfb60d5c14c51d9317845cc58cb181a1e2639a960c4
AgentTesla
d62db8a909debd7ac39dca5850db5bf150756f27cc50417efc285a812b378b84
AgentTesla
dca80db9c7ade94a508600fcc3982e3f8ff292d464cf3041bae8cc1600f715a2
AgentTesla
e769369f1fd04a2fdb3976c69cbaaefee66cee1f54f523d7eab4712ce764f73f
AgentTesla
f7af12b666ffa2eb7f5c8a4bdf258b4b47138f8fe21f7f11271581caa891918d
AgentTesla
+ 2'981 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/210304-xdtgpjmynj/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Drops file in Drivers directory
AgentTesla Payload
AgentTesla
Unpacked files
SH256 hash:
03f9c3bcf0e6563e6fef6d1ccc649bd45672ca12280aef6df60192d4ff28f541
MD5 hash:
8167e7b3d715e88c16b1ad98720ec597
SHA1 hash:
9e1766f259c0c9717616e27fcee3ddd810c3db60
Link:
https://www.unpac.me/results/2ac80083-532c-4ba2-bcf6-40565ab77f6b/
SH256 hash:
f8b5b51efedb3e87493ac2439473564603cc3059d57956f209a7310e311a1027
MD5 hash:
d66f89bf838fb52ed59d311a99aea214
SHA1 hash:
342525c4aabbb92abf51459081d34ed0f1cdc965
Link:
https://www.unpac.me/results/2ac80083-532c-4ba2-bcf6-40565ab77f6b/
SH256 hash:
99d7822750fe2badda1b2fd318f92b247dc7ed236a9e2f13755fba75860ef24f
MD5 hash:
bc84fa22b8644e28687151087c40f505
SHA1 hash:
138ccc1d8464e5135ea858db28b1d4582583dec2
Link:
https://www.unpac.me/results/2ac80083-532c-4ba2-bcf6-40565ab77f6b/
SH256 hash:
a1071d7b923717b0ef2dbc6fa2549510f1a4921273828037753c27a77b2abfbe
MD5 hash:
884690bd677d850f31eb50db49f18dc1
SHA1 hash:
3b0201887b0cb189c8d04ca69727b4f303bb448a
Link:
https://www.unpac.me/results/2ac80083-532c-4ba2-bcf6-40565ab77f6b/
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/a1071d7b923717b0ef2dbc6fa2549510f1a4921273828037753c27a77b2abfbe

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

unknown 9f8e4e4d7099f0daf7e55b99a6984fbadd46ff46d529b136a7e811cf030ca319

AgentTesla

Executable exe a1071d7b923717b0ef2dbc6fa2549510f1a4921273828037753c27a77b2abfbe

(this sample)

  
Dropped by
MD5 f6b493b611fe2e1dc9a95bdd07c059c6
  
Dropped by
SHA256 9f8e4e4d7099f0daf7e55b99a6984fbadd46ff46d529b136a7e811cf030ca319
  
Dropped by
AgentTesla
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/122344/

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