MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a8ef80a9d2d3f907b87839c694338c1ce1f9fdbcc96be1f6a8c3af0393eb4bf5. 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: 15


Intelligence 15 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a8ef80a9d2d3f907b87839c694338c1ce1f9fdbcc96be1f6a8c3af0393eb4bf5
SHA3-384 hash: 8914ed6723a58f26d825deadad253f3276d282cd9b44d0dcd425b734a4510c98a93c6b1d59c9c64084bc047061784e6c
SHA1 hash: 3fb9c5d3ecb2f4b746f88c13efdde58b3db0bdf6
MD5 hash: 82e9a6f0bef4389e4dc121036558697b
humanhash: monkey-arizona-vermont-alabama
File name:shipping docs.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:573'440 bytes
First seen:2022-07-22 04:22:46 UTC
Last seen:2022-07-22 09:41:22 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:KtP0uST2iNPx8Lo0hJiJP4uyQoHirgbdtTmCQo4:4wT1hx+o+JiNMHirgbHv
Threatray 18'101 similar samples on MalwareBazaar
TLSH T1F4C4D090F6C6C26EE8FBC77C0BE4A47476F1F9129605F5792E601D8E0A62FC48952933
TrID 64.2% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.5% (.SCR) Windows screen saver (13101/52/3)
9.2% (.EXE) Win64 Executable (generic) (10523/12/4)
5.7% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.9% (.EXE) Win32 Executable (generic) (4505/5/1)
Reporter GovCERT_CH
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
301
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
shipping docs.exe
Verdict:
Malicious activity
Analysis date:
2022-07-22 08:53:24 UTC
Tags:
agenttesla
Link:
https://app.any.run/tasks/42a2739e-1210-4d4f-9d35-f94a444b699e

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/293293/
Detection(s):
SecuriteInfo.com.MSIL.Kryptik.WZA.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
Unauthorized injection to a recently created process
Creating a file
Using the Windows Management Instrumentation requests
Creating a file in the %AppData% subdirectories
Reading critical registry keys
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Stealing user critical data
Changing the hosts file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/62da26a0ee649612ac6086fc/reports/06a02ad3-6277-4981-952b-2ba05af14403/overview
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/d870238a-c3b6-4abb-affc-35b567d49a2b
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1038984
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains very large array initializations
.NET source code contains very large strings
Hides that the sample has been downloaded from the Internet (zone.identifier)
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
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)
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 / registry access)
Yara detected AgentTesla
Yara detected AntiVM3
Yara detected Generic Downloader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 671478 Sample: shipping docs.exe Startdate: 22/07/2022 Architecture: WINDOWS Score: 100 41 Malicious sample detected (through community Yara rule) 2->41 43 Multi AV Scanner detection for submitted file 2->43 45 Yara detected AgentTesla 2->45 47 9 other signatures 2->47 6 yqWDN.exe 3 2->6         started        9 shipping docs.exe 3 2->9         started        12 yqWDN.exe 2 2->12         started        process3 file4 49 Multi AV Scanner detection for dropped file 6->49 51 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 6->51 53 Machine Learning detection for dropped file 6->53 55 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 6->55 14 yqWDN.exe 2 6->14         started        18 yqWDN.exe 6->18         started        31 C:\Users\user\...\shipping docs.exe.log, ASCII 9->31 dropped 20 shipping docs.exe 2 5 9->20         started        23 yqWDN.exe 12->23         started        signatures5 process6 dnsIp7 33 192.168.2.1 unknown unknown 14->33 35 mail.bulkon.co.ke 14->35 57 Tries to harvest and steal ftp login credentials 14->57 59 Tries to harvest and steal browser information (history, passwords, etc) 14->59 37 bulkon.co.ke 198.23.62.72, 49741, 49757, 587 STEADFASTUS United States 20->37 39 mail.bulkon.co.ke 20->39 25 C:\Users\user\AppData\Roaming\...\yqWDN.exe, PE32 20->25 dropped 27 C:\Windows\System32\drivers\etc\hosts, ASCII 20->27 dropped 29 C:\Users\user\...\yqWDN.exe:Zone.Identifier, ASCII 20->29 dropped 61 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 20->61 63 Tries to steal Mail credentials (via file / registry access) 20->63 65 Modifies the hosts file 20->65 67 Hides that the sample has been downloaded from the Internet (zone.identifier) 20->67 file8 signatures9
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/a8ef80a9d2d3f907b87839c694338c1ce1f9fdbcc96be1f6a8c3af0393eb4bf5/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-07-22 03:15:20 UTC
File Type:
PE (.Net Exe)
Extracted files:
10
AV detection:
22 of 26 (84.62%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=vdxybkos2p4qpodyhhdjim4mdtq7t7n4zfv6d5viyoxqhe7ljp2q._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
05c145b6410525b3e099f43e8343f5e231afc4281aa95f10223b1598ad8c175b
AgentTesla
3eaa8baf0110d2ee237ab42872cacb3b52aabda92229d5fb1fba508f448a4deb
AgentTesla
44ac93233199a7bc7e6f17be959844e6448f4e612f7f71909f2dfd41c3b388a7
AgentTesla
56293306a9df17a9d74d13e7a57e632068ae6fc7c52df2dedb5b0cf331de9b9d
AgentTesla
9c91e4ad7f628daad6e529f0bd038ae3a6bf1c8bb402f24ebced1a97b78dc193
AgentTesla
d1d07d3a85bdacc41a20c1380030da1f39b8b22667a04158e0b177f3acb40de6
AgentTesla
fdc528a5ec5f65567c1cee9be44d4fbc7a2738212351bf6cd8233f094c6e5334
AgentTesla
+ 18'091 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla collection keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/220722-ezskdacgfp/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
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
Drops file in Drivers directory
AgentTesla
Unpacked files
SH256 hash:
5e97ccd8dafcb36b3cb772f6a2fd425abcf221ab9ea1930e8c2618c95332f2c6
MD5 hash:
01800f6b045def8d90c649842f56d752
SHA1 hash:
f8434a4636d0772d01aac44bb3f9753a41f01d34
Link:
https://www.unpac.me/results/9c54edfa-b3f5-4e91-8707-ccb085f8ccf8/
SH256 hash:
5af447500eccb9464f474f76d3bb1c03f1afd6b7eac607401f001a8cac636c43
MD5 hash:
544e2d60a035cc5da6b3f83855afe444
SHA1 hash:
d82bd2543b241e650739dbc347b8f33972da23ba
Link:
https://www.unpac.me/results/9c54edfa-b3f5-4e91-8707-ccb085f8ccf8/
SH256 hash:
4c5f2b469888856973f6f31b084b338cf3803a4b3b12e65055aa76e9d397747b
MD5 hash:
e0a3d3469192e7f56ed385fd4c98daa1
SHA1 hash:
3d9e444a13d3b3d09f7aca53d343de0bdf9b6642
Link:
https://www.unpac.me/results/9c54edfa-b3f5-4e91-8707-ccb085f8ccf8/
SH256 hash:
a8ef80a9d2d3f907b87839c694338c1ce1f9fdbcc96be1f6a8c3af0393eb4bf5
MD5 hash:
82e9a6f0bef4389e4dc121036558697b
SHA1 hash:
3fb9c5d3ecb2f4b746f88c13efdde58b3db0bdf6
Link:
https://www.unpac.me/results/9c54edfa-b3f5-4e91-8707-ccb085f8ccf8/
Malware family:
AgentTesla.v3
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/a8ef80a9d2d3/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/a8ef80a9d2d3f907b87839c694338c1ce1f9fdbcc96be1f6a8c3af0393eb4bf5

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: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

File information

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

Malspam

AgentTesla

Executable exe a8ef80a9d2d3f907b87839c694338c1ce1f9fdbcc96be1f6a8c3af0393eb4bf5

(this sample)

  
Dropped by
agenttesla
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/293293/

Comments