MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8edf23c4454fd98bd716452dc825103d48d9d34e71ef9f5166c81712865d3d9e. 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: 9


Intelligence 9 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8edf23c4454fd98bd716452dc825103d48d9d34e71ef9f5166c81712865d3d9e
SHA3-384 hash: 77c229be029da9ec3b1f512befad046a1b739defc579be000cc7579105416e7eb4f752b1ffb71bab9d1488f7a59119cb
SHA1 hash: 2e320b8cf6a8bfd3a40ef4d17468a821a7aab261
MD5 hash: 1cf7421f5b8fe49830437f7953b00e88
humanhash: video-jersey-helium-stairway
File name:Additional documents.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:728'576 bytes
First seen:2021-02-15 12:14:30 UTC
Last seen:2021-02-16 02:06:11 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 12288:ikFTbTz7IDiGb/JH5iCa0m68+gwRJBVNZqdTtc4Ec:ikpUtniSqLwRjVwZc4E
Threatray 5 similar samples on MalwareBazaar
TLSH 77F42822D192AA14E4ED76B31720D11D3653FCCE7DB5E02429C636BBAD7B61043B89E3
Reporter GovCERT_CH
Tags:AgentTesla

Intelligence

File Origin
# of uploads :
2
# of downloads :
112
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Additional documents.exe
Verdict:
Malicious activity
Analysis date:
2021-02-15 12:16:03 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/ed5e3d77-8a4f-43e3-bd96-e4054fbe5a82

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Trojan.Packed2.42845.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a custom TCP request
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
Enabling autorun by creating a file
Unauthorized injection to a system process
Result
Verdict:
UNKNOWN
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.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/608007
Signature
.NET source code contains very large array initializations
Binary contains a suspicious time stamp
Initial sample is a PE file and has a suspicious name
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
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: 353033 Sample: Additional documents.exe Startdate: 15/02/2021 Architecture: WINDOWS Score: 100 31 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->31 33 Multi AV Scanner detection for dropped file 2->33 35 Sigma detected: Scheduled temp file as task from temp location 2->35 37 8 other signatures 2->37 7 Additional documents.exe 6 2->7         started        process3 file4 21 C:\Users\user\AppData\Roaming\zTBvUas.exe, PE32 7->21 dropped 23 C:\Users\user\AppData\Local\...\tmpBC46.tmp, XML 7->23 dropped 25 C:\Users\...\Additional documents.exe.log, ASCII 7->25 dropped 39 Writes to foreign memory regions 7->39 41 Injects a PE file into a foreign processes 7->41 11 RegSvcs.exe 15 2 7->11         started        15 RegSvcs.exe 7->15         started        17 schtasks.exe 1 7->17         started        signatures5 process6 dnsIp7 27 tsd.in 103.21.59.165, 21, 40886, 49738 PUBLIC-DOMAIN-REGISTRYUS United Arab Emirates 11->27 29 ftp.tsd.in 11->29 43 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 11->43 45 Tries to steal Mail credentials (via file access) 11->45 47 Tries to harvest and steal ftp login credentials 11->47 49 Tries to harvest and steal browser information (history, passwords, etc) 11->49 51 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 15->51 53 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 15->53 19 conhost.exe 17->19         started        signatures8 process9
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/8edf23c4454fd98bd716452dc825103d48d9d34e71ef9f5166c81712865d3d9e/
Threat name:
ByteCode-MSIL.Trojan.Artemis
Create hunting rule
Status:
Malicious
First seen:
2021-02-15 06:28:38 UTC
AV detection:
19 of 29 (65.52%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=r3pshrcfj7myxvywiuw4qjiqhventu2oohxz6ulgzalrfbs5hwpa._file
Verdict:
unknown
Similar samples:
522a495b289cf22898f762f18571b8839194e6232cb80fbb28dc426cbeeee323
AgentTesla
634dcb680c790c160d226db106e6da96efdaa3ae9a9413fe500a98192c98c50c
AgentTesla
7277f1d3ddf844d18b2b0f95b620c8617736ad6703234fee2cb46299590180fe
AgentTesla
e9c3fc00ddb08ef196d05b56ce0c83c04381de42e8777e902e3e9c7afe4a9f11
AgentTesla
f29b0b35d584de9410f3ffe75e8e4dbc6d90ecbc6f2c4d9382d8faf33e88d80b
AgentTesla
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla keylogger spyware stealer trojan
Link:
https://tria.ge/reports/210215-fkayct9els/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
AgentTesla
Unpacked files
SH256 hash:
2ec41720b412f91f91daaefea38007449491b2c016238aa8f23b6866c89bc788
MD5 hash:
987ce346069cf47535e5ac57265c7228
SHA1 hash:
d0085325ed78fcac6d1f605753237abd1c40db22
Link:
https://www.unpac.me/results/5eab0ec2-272b-4c8e-9086-de09ec0698c8/
SH256 hash:
7de4880818c050e7f0a1374e4454ca714900d48a683d40973bac8dc120a7ddd7
MD5 hash:
543fd6a3139808110cb27b8d902ec611
SHA1 hash:
c636c620f6814457c53be584a9a1ff4d39521896
Link:
https://www.unpac.me/results/5eab0ec2-272b-4c8e-9086-de09ec0698c8/
SH256 hash:
caa6051fbdf1bc4aa373d62f2cb545ceca7dfbb20dbc3f172d3660d1038504a2
MD5 hash:
7531c5a80878a632e660869b399c95ec
SHA1 hash:
41d3124e7fe3b423cc8a5d457366b0ca8dc73df3
Link:
https://www.unpac.me/results/5eab0ec2-272b-4c8e-9086-de09ec0698c8/
SH256 hash:
8edf23c4454fd98bd716452dc825103d48d9d34e71ef9f5166c81712865d3d9e
MD5 hash:
1cf7421f5b8fe49830437f7953b00e88
SHA1 hash:
2e320b8cf6a8bfd3a40ef4d17468a821a7aab261
Link:
https://www.unpac.me/results/5eab0ec2-272b-4c8e-9086-de09ec0698c8/
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/8edf23c4454fd98bd716452dc825103d48d9d34e71ef9f5166c81712865d3d9e

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:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFu
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
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 baf37b9a0d243292f951414947aa3feb27d4ef6a7ff98c767ad6e470cc46c7da

AgentTesla

Executable exe 8edf23c4454fd98bd716452dc825103d48d9d34e71ef9f5166c81712865d3d9e

(this sample)

  
Dropped by
MD5 3c8d312921e75536eaeb3fa5ad0c5078
  
Dropped by
SHA256 baf37b9a0d243292f951414947aa3feb27d4ef6a7ff98c767ad6e470cc46c7da
  
Dropped by
AgentTesla
  
Delivery method
Distributed via e-mail attachment

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