MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 efdf683970e3c427d72dcc5246754bd04e04d88ed3974168583ba38aca7f53ca. 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: 13


Intelligence 13 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: efdf683970e3c427d72dcc5246754bd04e04d88ed3974168583ba38aca7f53ca
SHA3-384 hash: 9eb3ba0057e90985aef617d77f77de6cd4b011b7c51c2183fc8bd257c69d15eff8c8aad4fdd57522c8d384a7063e8636
SHA1 hash: 8fc1c313b41fd8f5875119e643d8c30e1f0eb36c
MD5 hash: add302f87959f4852cb7081c2eb4a804
humanhash: bakerloo-social-kilo-iowa
File name:scan_2021_567812097854317907854.scr
Download: download sample
Signature AgentTesla
Create hunting rule
File size:858'624 bytes
First seen:2021-08-03 08:40:19 UTC
Last seen:2021-08-03 12:19:10 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'659 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:bO84And4pJaRll7fKCMLc7euJ5WNEjJQLz7vNBLWta2iN:bO8BrR/H8UJYEorNVW01
Threatray 7'740 similar samples on MalwareBazaar
TLSH T1F805BE2126EA165DF376ABF25BC4B4AE8BF5F9739719F0B93D9103824231D808D52732
dhash icon 851a98b4909864c4 (58 x AgentTesla, 43 x Formbook, 34 x RedLineStealer)
Reporter cocaman
Tags:AgentTesla exe scr

Intelligence

File Origin
# of uploads :
2
# of downloads :
165
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
scan_2021_567812097854317907854.scr
Verdict:
Malicious activity
Analysis date:
2021-08-03 08:43:15 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/ebdf3920-1d45-4142-bc26-d66cd3f1e99b

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
AgentTeslaV3
Create hunting rule
Link:
https://www.capesandbox.com/analysis/175985/
Detection(s):
SecuriteInfo.com.MSIL.Kryptik.WZA.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
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
Forced shutdown of a system process
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.
Malware family:
Agent Tesla
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/542800ee-5602-4b75-bd5b-849eaa1c913a
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
spre.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/825989
Signature
.NET source code references suspicious native API functions
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Icon mismatch, binary includes an icon from a different legit application in order to fool users
Installs a global keyboard hook
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: MSBuild connects to smtp port
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 access)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AgentTesla
Yara detected AntiVM3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 458398 Sample: scan_2021_56781209785431790... Startdate: 03/08/2021 Architecture: WINDOWS Score: 100 41 clientconfig.passport.net 2->41 51 Found malware configuration 2->51 53 Multi AV Scanner detection for dropped file 2->53 55 Icon mismatch, binary includes an icon from a different legit application in order to fool users 2->55 57 9 other signatures 2->57 8 scan_2021_567812097854317907854.exe 7 2->8         started        12 DBqQu.exe 2 2->12         started        14 DBqQu.exe 1 2->14         started        signatures3 process4 file5 31 C:\Users\user\AppData\Roaming\jgVPFp.exe, PE32 8->31 dropped 33 C:\Users\user\...\jgVPFp.exe:Zone.Identifier, ASCII 8->33 dropped 35 C:\Users\user\AppData\Local\...\tmp556E.tmp, XML 8->35 dropped 37 scan_2021_567812097854317907854.exe.log, ASCII 8->37 dropped 59 Uses schtasks.exe or at.exe to add and modify task schedules 8->59 16 MSBuild.exe 2 8 8->16         started        21 schtasks.exe 1 8->21         started        23 conhost.exe 12->23         started        25 conhost.exe 14->25         started        signatures6 process7 dnsIp8 39 server291.web-hosting.com 199.188.201.82, 49743, 49744, 587 NAMECHEAP-NETUS United States 16->39 29 C:\Users\user\AppData\Roaming\...\DBqQu.exe, PE32 16->29 dropped 43 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 16->43 45 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 16->45 47 Tries to steal Mail credentials (via file access) 16->47 49 5 other signatures 16->49 27 conhost.exe 21->27         started        file9 signatures10 process11
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/efdf683970e3c427d72dcc5246754bd04e04d88ed3974168583ba38aca7f53ca/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-08-03 08:05:12 UTC
File Type:
PE (.Net Exe)
Extracted files:
22
AV detection:
12 of 46 (26.09%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=57pwqolq4pccpvznzrjem5kl2bhajweo2oluc2cyhoryvst7kpfa._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
07ec2c9cdd71be2769952cb169ec7db7625ba8790d95cf3d977b9544d8efbcf9
AgentTesla
13d90261f73ecaa7455ccdaf16de6d96b122e8829cbf0ffe84ab89fc2cf4cad2
AgentTesla
a10f8284111774da520ee4ddba45bbca1d55441ef48e9da3143aa2ea06f4e635
AgentTesla
c79d65d7f2bb1d55cb0a5c83809fbe9a743c402912518deaf57ea939475df693
AgentTesla
dc8b8addeb256bdfb0eb82d09b54b57400deed315a727e331fe66ca59c965373
AgentTesla
e13c26e3f597f9408603d053ee4e246995adf0973b96f7d0eabfadc9d63d52c3
AgentTesla
ef2dd9364aac91580b27b37735c1f1e885dd8edf3bbef2f0ac972d73799c0070
AgentTesla
+ 7'730 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/210803-mr7tcb2asx/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
AgentTesla Payload
AgentTesla
Unpacked files
SH256 hash:
f420c786e54c04dc7f9e603037a8d2df634ffcf27f28c83f8a49debc0405bda4
MD5 hash:
a10b82252cd7e435b8efc7ead8e3090b
SHA1 hash:
cc1dfc8a227637d7b0cf725d6992d9c6a1ea2c78
Link:
https://www.unpac.me/results/9604cede-f73e-4634-b1c5-50f77c220d34/
SH256 hash:
b7263604e5e60a32fb0e2fd00e66fd3114300e78fce93cbbc3b268d7a2344314
MD5 hash:
d61546644174d0f9340973a8c81bd3a5
SHA1 hash:
6f6cc6075a9aae32b6faa58e3c30f4d7018f2a63
Link:
https://www.unpac.me/results/9604cede-f73e-4634-b1c5-50f77c220d34/
SH256 hash:
cfef97ff706312dff4edd998aeee22f1283221631ebb0cc954bebbb701c1465c
MD5 hash:
a0f625a3d3348903f3c902f588c0e4f5
SHA1 hash:
20d1f0b74abe6f500e8c21119f55281926210ac0
Link:
https://www.unpac.me/results/9604cede-f73e-4634-b1c5-50f77c220d34/
SH256 hash:
efdf683970e3c427d72dcc5246754bd04e04d88ed3974168583ba38aca7f53ca
MD5 hash:
add302f87959f4852cb7081c2eb4a804
SHA1 hash:
8fc1c313b41fd8f5875119e643d8c30e1f0eb36c
Link:
https://www.unpac.me/results/9604cede-f73e-4634-b1c5-50f77c220d34/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/efdf683970e3/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/efdf683970e3c427d72dcc5246754bd04e04d88ed3974168583ba38aca7f53ca

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

rar 48b91af731ba5108a4892b61b99f73072f1bfa89b115d70edbf936507ede54e6

AgentTesla

Executable exe efdf683970e3c427d72dcc5246754bd04e04d88ed3974168583ba38aca7f53ca

(this sample)

  
Delivery method
Other
  
Dropped by
SHA256 48b91af731ba5108a4892b61b99f73072f1bfa89b115d70edbf936507ede54e6
Cape
Cape
https://www.capesandbox.com/analysis/175985/

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