MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 dbc816637c4c41cb3f5dcce36125fa1c17e71d1642019c21d4cb005fc3562fc1. 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 2 File information Comments

SHA256 hash: dbc816637c4c41cb3f5dcce36125fa1c17e71d1642019c21d4cb005fc3562fc1
SHA3-384 hash: fbe3f7ce1b92932bde1acc0e16da0b71a296808697386b55293bb8b1888d6bf7563beacc97f9f11f0ebc8a45e7fc3840
SHA1 hash: 7baf1f3482d55a85ef37492fd28fde6fb6371f13
MD5 hash: 34b5ac9f93f13e9abea39177e15371c6
humanhash: tennis-violet-angel-eight
File name:PO-WND-001.exe
Download: download sample
Signature AgentTesla
File size:857'088 bytes
First seen:2022-08-05 19:24:44 UTC
Last seen:2022-08-05 20:11:28 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'609 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:Ia9I389C8iuWi1GVCVZOwwWhbCbSvMQSfjsKduT:I6F9IAeC5wubCbS0Ljp
Threatray 19'117 similar samples on MalwareBazaar
TLSH T1FD059E0132D57619E13A4F754AE2C070CBF6EE279835E2AE2CD83E4FB776A408553726
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 :
4
# of downloads :
401
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
agenttesla
ID:
1
File name:
PO-WND-001.exe
Verdict:
Malicious activity
Analysis date:
2022-08-05 19:28:07 UTC
Tags:
agenttesla

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file
Using the Windows Management Instrumentation requests
Creating a window
Sending a custom TCP request
Сreating synchronization primitives
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Unauthorized injection to a recently created process
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed
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.
Result
Threat name:
AgentTesla
Detection:
malicious
Classification:
troj.adwa.spyw.evad
Score:
100 / 100
Signature
.NET source code contains very large array initializations
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 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)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AgentTesla
Yara detected AntiVM3
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 679485 Sample: PO-WND-001.exe Startdate: 05/08/2022 Architecture: WINDOWS Score: 100 64 Malicious sample detected (through community Yara rule) 2->64 66 Multi AV Scanner detection for dropped file 2->66 68 Multi AV Scanner detection for submitted file 2->68 70 6 other signatures 2->70 7 PO-WND-001.exe 6 2->7         started        11 DnDcR.exe 5 2->11         started        13 DnDcR.exe 2 2->13         started        process3 file4 38 C:\Users\user\AppData\...\vIcxfUquQIl.exe, PE32 7->38 dropped 40 C:\Users\user\AppData\Local\...\tmpDF2A.tmp, XML 7->40 dropped 42 C:\Users\user\AppData\...\PO-WND-001.exe.log, ASCII 7->42 dropped 72 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 7->72 74 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 7->74 76 Uses schtasks.exe or at.exe to add and modify task schedules 7->76 15 PO-WND-001.exe 2 5 7->15         started        20 schtasks.exe 1 7->20         started        22 PO-WND-001.exe 7->22         started        78 Multi AV Scanner detection for dropped file 11->78 80 Machine Learning detection for dropped file 11->80 82 Injects a PE file into a foreign processes 11->82 24 DnDcR.exe 11->24         started        26 schtasks.exe 1 11->26         started        signatures5 process6 dnsIp7 44 mail.palumalimited.com 15->44 46 palumalimited.com 174.136.29.110, 49743, 49760, 587 IHNETUS United States 15->46 32 C:\Users\user\AppData\Roaming\...\DnDcR.exe, PE32 15->32 dropped 34 C:\Windows\System32\drivers\etc\hosts, ASCII 15->34 dropped 36 C:\Users\user\...\DnDcR.exe:Zone.Identifier, ASCII 15->36 dropped 50 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 15->50 52 Tries to steal Mail credentials (via file / registry access) 15->52 54 Modifies the hosts file 15->54 56 Hides that the sample has been downloaded from the Internet (zone.identifier) 15->56 28 conhost.exe 20->28         started        48 mail.palumalimited.com 24->48 58 Tries to harvest and steal ftp login credentials 24->58 60 Tries to harvest and steal browser information (history, passwords, etc) 24->60 62 Installs a global keyboard hook 24->62 30 conhost.exe 26->30         started        file8 signatures9 process10
Threat name:
ByteCode-MSIL.Spyware.SnakeLogger
Status:
Malicious
First seen:
2022-08-05 09:25:28 UTC
File Type:
PE (.Net Exe)
Extracted files:
41
AV detection:
21 of 26 (80.77%)
Threat level:
  2/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
family:agenttesla collection keylogger persistence spyware stealer trojan
Behaviour
Creates scheduled task(s)
Modifies system certificate store
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Enumerates physical storage devices
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Adds Run key to start application
Checks computer location settings
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
SH256 hash:
6c4af9cc732354a41ce82cdc4d044caba656e1825c4d9623b8e3481b16269870
MD5 hash:
04fe90561625f7bcf1b375ff906cf41c
SHA1 hash:
3cc4b98631c70adb946a9feb6d40f5eb6829d9fe
SH256 hash:
e27722cd78f67244a380c3e2e339a37524acd22953efb50a9512fbf43f5eb66e
MD5 hash:
cc4bd115334d51acf0788c43ca4d463e
SHA1 hash:
3b0aec85ab0febddce07aa42d06a44a332df192a
SH256 hash:
dbc816637c4c41cb3f5dcce36125fa1c17e71d1642019c21d4cb005fc3562fc1
MD5 hash:
34b5ac9f93f13e9abea39177e15371c6
SHA1 hash:
7baf1f3482d55a85ef37492fd28fde6fb6371f13
Malware family:
AgentTesla.v3
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.

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:pe_imphash
Rule name:Skystars_Malware_Imphash
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 dbc816637c4c41cb3f5dcce36125fa1c17e71d1642019c21d4cb005fc3562fc1

(this sample)

  
Dropped by
agenttesla
  
Delivery method
Distributed via e-mail attachment

Comments