MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a70fef725d796b5adb74d12567424fe976af6539cc49d7c0fb9cfbf5812edb03. 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 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a70fef725d796b5adb74d12567424fe976af6539cc49d7c0fb9cfbf5812edb03
SHA3-384 hash: fa2c6f64fec21d7749a4da18ade7da7998515299d956f10e7eb865de59f431925b0f3fb1c715836c83a46365f558ba65
SHA1 hash: a51ad73695c95981edfb03fd5ccdb2eec11ff472
MD5 hash: 566a9a9781b506b65ad41174cfcd6c77
humanhash: cardinal-table-blossom-california
File name:FedEx's AWB#530532320464350.pdf.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:902'656 bytes
First seen:2020-07-17 20:39:31 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'747 x AgentTesla, 19'638 x Formbook, 12'244 x SnakeKeylogger)
ssdeep 6144:9lMtZ6um4GrilAkQ9aRdeHfN6MarBLY5EUhnMOpvhCKZaTO5sd0VTZYBocFE86wn:9ytZwil8czFjUj7CxObuocV
Threatray 10'631 similar samples on MalwareBazaar
TLSH C5157C383A09591AD83C0E7148A49AD26BF525473F25CB0EBBC51B6CAF037CB7F42659
Reporter jarumlus
Tags:AgentTesla

Intelligence

File Origin
# of uploads :
1
# of downloads :
85
Origin country :
n/a
Vendor Threat Intelligence
Detection:
AgentTeslaV2
Create hunting rule
Link:
https://www.capesandbox.com/analysis/27566/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% subdirectories
Reading critical registry keys
Creating a file
Deleting a recently created file
Reading Telegram data
Running batch commands
Creating a process with a hidden window
Launching a process
Sending a custom TCP request
Creating a window
Unauthorized injection to a recently created process
Sending an HTTP GET request
Sending a TCP request to an infection source
Stealing user critical data
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/389208
Signature
Allocates memory in foreign processes
Creates an autostart registry key pointing to binary in C:\Windows
Drops PE files to the user root directory
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)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses an obfuscated file name to hide its real file extension (double extension)
Writes to foreign memory regions
Yara detected AgentTesla
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 246798 Sample: FedEx's AWB#530532320464350... Startdate: 19/07/2020 Architecture: WINDOWS Score: 100 36 Multi AV Scanner detection for submitted file 2->36 38 Yara detected AgentTesla 2->38 40 Uses an obfuscated file name to hide its real file extension (double extension) 2->40 42 4 other signatures 2->42 7 FedEx's AWB#530532320464350.pdf.exe 5 2->7         started        10 pcalua.exe 1 2->10         started        12 pcalua.exe 1 1 2->12         started        process3 file4 28 C:\Users\user\dwvvm.exe, PE32 7->28 dropped 30 C:\Users\user\AppData\...\AddInProcess32.exe, PE32 7->30 dropped 32 C:\Users\user\dwvvm.exe:Zone.Identifier, ASCII 7->32 dropped 34 FedEx's AWB#530532320464350.pdf.exe.log, ASCII 7->34 dropped 14 dwvvm.exe 7->14         started        17 cmd.exe 1 7->17         started        19 dwvvm.exe 1 10->19         started        process5 signatures6 50 Writes to foreign memory regions 14->50 52 Allocates memory in foreign processes 14->52 54 Injects a PE file into a foreign processes 14->54 21 AddInProcess32.exe 2 14->21         started        24 reg.exe 1 1 17->24         started        26 conhost.exe 17->26         started        56 Multi AV Scanner detection for dropped file 19->56 58 Machine Learning detection for dropped file 19->58 process7 signatures8 44 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 21->44 46 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 21->46 48 Creates an autostart registry key pointing to binary in C:\Windows 24->48
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/a70fef725d796b5adb74d12567424fe976af6539cc49d7c0fb9cfbf5812edb03/
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Create hunting rule
Status:
Malicious
First seen:
2020-07-17 02:37:42 UTC
AV detection:
24 of 29 (82.76%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=u4h664s5pfvvvw3u2eswoqsp5f3k6zjzzre5pqh3tt57lajo3mbq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
07cad509cf5a4ee6406a4229fe21bfaf23101816b2328402f86bc3b9e8c47d44
AgentTesla
5bf9c6dd99a8c7ee59efcf09ff2b4ee5b5f51aab9ad91cd2aa0fca4b0ae975ba
AgentTesla
b4e4955cd0abdc5df6d5e1db5d58f3b0f1de491540371e919941f6dc9741f23e
AgentTesla
b8968bfb9319f3bffbc742c99a60acf9dcc47c24eaf92ce5d5c8233807093df8
AgentTesla
cea8cae444dd5dadf01c31def4681b170907b97e0cfb468a9ff317ce7ae736a3
AgentTesla
d736600bb69d2649cb7d8e7df884063266fb9d0ae97e284b038c80563e7df645
AgentTesla
e1edaeafb526cd694a3f293cf47ad4bdb832cc0c6d697a1f386d0f9b63dcd152
AgentTesla
e42fe9ce657b9eedca1497cbcecfb3a6b7ed453ff5dde6c4cc3f06cdf7b59b00
AgentTesla
efe9be78a8da440c576162c8bd5498972ec6134b4276c05acb6a3b060a4013bb
AgentTesla
f3635e26f70dfb1240a5f8c7b09ea634ee9e5b6692cb73829b0124c0b2505281
AgentTesla
+ 10'621 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  1/10
Tags:
n/a
Link:
https://tria.ge/reports/200717-tkx6aentrn/
Behaviour
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Suspicious use of SetThreadContext
Adds Run key to start application
Reads user/profile data of web browsers
Loads dropped DLL
Reads user/profile data of local email clients
Executes dropped EXE
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Unknown
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/a70fef725d796b5adb74d12567424fe976af6539cc49d7c0fb9cfbf5812edb03

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_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

zip 9cf039f17de50455e60eb51fed7638023f7070d1a3101b1fd974c2964747df1d

AgentTesla

Executable exe a70fef725d796b5adb74d12567424fe976af6539cc49d7c0fb9cfbf5812edb03

(this sample)

  
Dropped by
MD5 1ecc5dcea6bee28d3d6da9f90c074ee3
  
Dropped by
SHA256 9cf039f17de50455e60eb51fed7638023f7070d1a3101b1fd974c2964747df1d
  
Dropped by
AgentTesla
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/27566/

Comments