MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8fb6b47b32a260ffcc7a2347cfa18fcb94ece3d929e023614d2aaf6f1382668e. 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: 10


Intelligence 10 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8fb6b47b32a260ffcc7a2347cfa18fcb94ece3d929e023614d2aaf6f1382668e
SHA3-384 hash: a1fa0b6dfb34d4f28a4bcbcce96c8e03c6de4bf94ea60b0092309ab980bf0346fac0e8d2c1bd45827b12adf8b262bd8d
SHA1 hash: 7c0942947a834a74ed048937fab3c674fde994bc
MD5 hash: 149ef3e5fd86f91b9246837f48ec63e2
humanhash: wolfram-wisconsin-sixteen-thirteen
File name:CONTRACT REVIEW,PDF.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:636'416 bytes
First seen:2020-10-12 06:09:03 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'855 x AgentTesla, 19'783 x Formbook, 12'304 x SnakeKeylogger)
ssdeep 12288:uBsaQbJOBRxBOTYZHVAkdR4UBPZnZLiW:ta4QP4YQkz9WW
Threatray 203 similar samples on MalwareBazaar
TLSH DBD45AE3354EDA4DFE3A863174B940E3E6292FC73E50590DB9DACA1C0D2355E5B122CA
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
AgentTesla SMTP exfil server:
mail.privateemail.com:587

Intelligence

File Origin
# of uploads :
1
# of downloads :
84
Origin country :
n/a
Vendor Threat Intelligence
Detection:
AgentTeslaV2
Create hunting rule
Link:
https://www.capesandbox.com/analysis/69938/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a file in the %temp% subdirectories
Creating a window
Creating a file
Creating a process from a recently created file
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/487986
Signature
.NET source code contains very large array initializations
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Installs a global keyboard hook
Machine Learning detection for sample
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 virtualization through RDTSC time measurements
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)
Writes to foreign memory regions
Yara detected AgentTesla
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 296442 Sample: CONTRACT REVIEW,PDF.exe Startdate: 12/10/2020 Architecture: WINDOWS Score: 100 43 Found malware configuration 2->43 45 Antivirus / Scanner detection for submitted sample 2->45 47 Multi AV Scanner detection for submitted file 2->47 49 4 other signatures 2->49 6 CONTRACT REVIEW,PDF.exe 8 2->6         started        10 eJJHmLF.exe 4 2->10         started        12 eJJHmLF.exe 3 2->12         started        process3 file4 23 C:\Users\user\AppData\...\InstallUtil.exe, PE32 6->23 dropped 25 C:\Users\user\...\CONTRACT REVIEW,PDF.exe.log, ASCII 6->25 dropped 27 C:\Users\user\AppData\...\AgileDotNetRT.dll, PE32 6->27 dropped 29 C:\Users\user\AppData\Local\Temp\...\D.dll, PE32 6->29 dropped 51 Writes to foreign memory regions 6->51 53 Allocates memory in foreign processes 6->53 55 Injects a PE file into a foreign processes 6->55 14 InstallUtil.exe 2 8 6->14         started        19 conhost.exe 10->19         started        21 conhost.exe 12->21         started        signatures5 process6 dnsIp7 33 mail.privateemail.com 198.54.122.60, 49714, 49715, 587 NAMECHEAP-NETUS United States 14->33 31 C:\Users\user\AppData\Roaming\...\eJJHmLF.exe, PE32 14->31 dropped 35 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 14->35 37 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 14->37 39 Tries to steal Mail credentials (via file access) 14->39 41 5 other signatures 14->41 file8 signatures9
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/8fb6b47b32a260ffcc7a2347cfa18fcb94ece3d929e023614d2aaf6f1382668e/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2020-10-12 00:10:24 UTC
AV detection:
23 of 29 (79.31%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=r63li6zsujqp7td2end47impzokozy6zfhqcgyknfkxw6e4cm2ha._file
Verdict:
unknown
Similar samples:
05d567307393895ec32ac3ba2baade59a8a4bc95795fb15045c5c1b3569f95df
AgentTesla
0edc105e9bc4e9b297487650e45b6ee0b0ca1e97e2194a2b455d657e428be977
AgentTesla
4323dbb489f82a5a4906fbc6e0dc37a6589dc7b073f2fa0a569b7d3409314e15
AgentTesla
8878c46875d3b0d420bd76508490e5c6df7a55359d1d039f0edb145e836addb1
AgentTesla
914712c702b94abb26e0d1edbd54712d62a2fdb6cfbc9bd41ac8bcb84296358f
AgentTesla
a4b6103b1dfe717301995f598b140b0ce26e7a1541f45b6ed6485c05dca2692a
AgentTesla
d9600ffc9406d71c60b7eb036248230510c3b971a1de563ca7b8b57e822f7879
AgentTesla
e32078ed47237d3dcd08fdd721bf3d65c84d62f5fd7d33719381418b13425b0e
AgentTesla
f4e60792b136f02c28fd35322ee58bf723aeaa3611d286417d8b2b0707612cdc
AgentTesla
fbe07dca7476dba15e9dd639c2b5a71c6bbdf21b0f50ee1fde6aa5bc13e19243
AgentTesla
+ 193 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
keylogger stealer persistence spyware trojan family:agenttesla
Link:
https://tria.ge/reports/201012-e23sr11y3x/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
Loads dropped DLL
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Executes dropped EXE
AgentTesla Payload
AgentTesla
Unpacked files
SH256 hash:
2f633dea08aefa662600ab46656f6ea9b6c93cf437583cb45a6550ecd1930705
MD5 hash:
4098d46a3be1691711adacb8eab759f9
SHA1 hash:
328b846fc8061f5f16e4a5dad6911cfeacfa48ce
Detections:
win_agent_tesla_w1
Create hunting rule
Link:
https://www.unpac.me/results/e2e9376b-e3e8-4381-a53d-2a01981d1d8f/
SH256 hash:
30140c3bf5874d7d184b15513016f9de1524ae95a5efe9a1cb15bad6d6936d64
MD5 hash:
03847d82611bc6461cbb99ca768828f1
SHA1 hash:
39859a3fd3326520dfd1ed10456bb227933a8871
Link:
https://www.unpac.me/results/e2e9376b-e3e8-4381-a53d-2a01981d1d8f/
SH256 hash:
19d9922060be89a70b76e5c0056e751f1baa5d41819235c92cf4f5d7668e1267
MD5 hash:
811864a0b06c529af894a7fec6ddbf47
SHA1 hash:
d35b82933eb06a6ec60e8cbbdb65eb6cdcaeb6d2
Link:
https://www.unpac.me/results/e2e9376b-e3e8-4381-a53d-2a01981d1d8f/
Parent samples :
afa2f55e149097f9b250142bbfd94d9d56d10649c96adb079fdb0dfdac7c6660
69e2ae11e1b5cbe120bf02301191a1cf05e87fc09b09d63bd782abbf3615d05d
0b778873c94f6bc89a40294c0e85a38ab82509260cd2a2e8b73d00c5c90e8757
7ddfa6f44a60f4b894321f6977f8121cfb371c3c61ac872c58ba61fd5ee13deb
SH256 hash:
e3f3f21f1da73f127615d0ce7f20b1159facd9b5015ef223de73dddbcdf1f59a
MD5 hash:
7a4f8f06291d4cff66c36c4963e2d0e6
SHA1 hash:
dfe8b19e175fb63bd891664e11e9f7fa646f4bf1
Link:
https://www.unpac.me/results/e2e9376b-e3e8-4381-a53d-2a01981d1d8f/
SH256 hash:
8fb6b47b32a260ffcc7a2347cfa18fcb94ece3d929e023614d2aaf6f1382668e
MD5 hash:
149ef3e5fd86f91b9246837f48ec63e2
SHA1 hash:
7c0942947a834a74ed048937fab3c674fde994bc
Link:
https://www.unpac.me/results/e2e9376b-e3e8-4381-a53d-2a01981d1d8f/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.80
Link:
https://yomi.yoroi.company/submissions/8fb6b47b32a260ffcc7a2347cfa18fcb94ece3d929e023614d2aaf6f1382668e

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:AgentTesla_extracted_bin
Create hunting rule
Author:James_inthe_box
Description:AgentTesla extracted
Rule name:AgentTesla_mod_tough_bin
Create hunting rule
Author:James_inthe_box
Reference:https://app.any.run/tasks/3b5d409c-978b-4a95-a5f1-399f0216873d/
Rule name:Agenttesla_type2
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Agenttesla in memory
Reference:internal research
Rule name:CAP_HookExKeylogger
Create hunting rule
Author:Brian C. Bell -- @biebsmalwareguy
Reference:https://github.com/DFIRnotes/rules/blob/master/CAP_HookExKeylogger.yar
Rule name:win_agent_tesla_w1
Create hunting rule
Author:govcert_ch
Description:Detect Agent Tesla based on common .NET code sequences

File information

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

Malspam

AgentTesla

Executable exe 8fb6b47b32a260ffcc7a2347cfa18fcb94ece3d929e023614d2aaf6f1382668e

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/69938/

Comments