MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ac830d0075775ac73ff54540c9f022aeea235b55a075a1f6bd5dc4704005146f. 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

SHA256 hash: ac830d0075775ac73ff54540c9f022aeea235b55a075a1f6bd5dc4704005146f
SHA3-384 hash: f23e74636d275404ffdf59785f8063fc1afc343105d8ae3a42178deb3d99d0458ff3c0f165e84b3122e757ea547c7d8f
SHA1 hash: 488ba498344af9d0442d6f9fbcf747abaeb43618
MD5 hash: f7174c07bf1858923497da0055937ad3
humanhash: rugby-lion-finch-jig
File name:SOA.exe
Download: download sample
Signature AgentTesla
File size:609'792 bytes
First seen:2022-07-20 04:18:35 UTC
Last seen:2022-07-20 05:49:01 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:ih3ucSCQo4/9MqUHd4RHxNSfC31vvW2j2UuwD4+2vbtg:27Tqq2FTSgvvWOMBg
Threatray 18'321 similar samples on MalwareBazaar
TLSH T1B3D4DF20A2D5D72AF5BFD77D0BF0502077F5F9219709E57A3EA11C8E0A62F848642E27
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 :
209
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
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
Creating a file
Using the Windows Management Instrumentation requests
Enabling autorun by creating a file
Verdict:
Suspicious
Threat level:
  5/10
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 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)
Injects a PE file into a foreign processes
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)
Snort IDS alert for network traffic
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
Uses the Telegram API (likely for C&C communication)
Yara detected AgentTesla
Yara detected AntiVM3
Yara detected Generic Downloader
Yara detected Telegram RAT
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 670496 Sample: SOA.exe Startdate: 20/07/2022 Architecture: WINDOWS Score: 100 58 Snort IDS alert for network traffic 2->58 60 Malicious sample detected (through community Yara rule) 2->60 62 Multi AV Scanner detection for dropped file 2->62 64 12 other signatures 2->64 7 SOA.exe 6 2->7         started        11 yqWDN.exe 5 2->11         started        13 yqWDN.exe 2 2->13         started        process3 file4 36 C:\Users\user\AppData\Roaming\RXxBFOs.exe, PE32 7->36 dropped 38 C:\Users\user\AppData\Local\...\tmp39B1.tmp, XML 7->38 dropped 40 C:\Users\user\AppData\Local\...\SOA.exe.log, ASCII 7->40 dropped 66 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 7->66 68 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 7->68 70 Uses schtasks.exe or at.exe to add and modify task schedules 7->70 15 SOA.exe 17 5 7->15         started        20 schtasks.exe 1 7->20         started        72 Multi AV Scanner detection for dropped file 11->72 74 Machine Learning detection for dropped file 11->74 76 Injects a PE file into a foreign processes 11->76 22 yqWDN.exe 14 2 11->22         started        24 schtasks.exe 1 11->24         started        signatures5 process6 dnsIp7 42 api.telegram.org 149.154.167.220, 443, 49755, 49758 TELEGRAMRU United Kingdom 15->42 30 C:\Users\user\AppData\Roaming\...\yqWDN.exe, PE32 15->30 dropped 32 C:\Windows\System32\drivers\etc\hosts, ASCII 15->32 dropped 34 C:\Users\user\...\yqWDN.exe:Zone.Identifier, ASCII 15->34 dropped 46 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 15->46 48 Tries to steal Mail credentials (via file / registry access) 15->48 50 Modifies the hosts file 15->50 52 Hides that the sample has been downloaded from the Internet (zone.identifier) 15->52 26 conhost.exe 20->26         started        44 192.168.2.1 unknown unknown 22->44 54 Tries to harvest and steal ftp login credentials 22->54 56 Tries to harvest and steal browser information (history, passwords, etc) 22->56 28 conhost.exe 24->28         started        file8 signatures9 process10
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2022-07-20 02:23:12 UTC
File Type:
PE (.Net Exe)
Extracted files:
19
AV detection:
17 of 23 (73.91%)
Threat level:
  5/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
family:agenttesla collection keylogger persistence spyware stealer trojan
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
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
Malware Config
C2 Extraction:
https://api.telegram.org/bot5484820495:AAGEjy8dT72vJZImmHLmeh3onMuG9LLRD5A/sendDocument
Unpacked files
SH256 hash:
5e97ccd8dafcb36b3cb772f6a2fd425abcf221ab9ea1930e8c2618c95332f2c6
MD5 hash:
01800f6b045def8d90c649842f56d752
SHA1 hash:
f8434a4636d0772d01aac44bb3f9753a41f01d34
SH256 hash:
fea857eca4e74d1674738eef7452de33d486fa355e9538a00ab43d772e096fc5
MD5 hash:
f11d8aebe58a1f6151b346533b45e3cd
SHA1 hash:
7edb4e9cedadcea962146f5ea9e489c9579a9097
SH256 hash:
2a896fde1a6a6bb509349758cddfdd30ef4c7f434c24556e5762bbc6e2e1748b
MD5 hash:
53070f1e2800956028e4f6a76423d99a
SHA1 hash:
32a2b0a028de5b0fd86a35e841664e4f74122a03
SH256 hash:
ac830d0075775ac73ff54540c9f022aeea235b55a075a1f6bd5dc4704005146f
MD5 hash:
f7174c07bf1858923497da0055937ad3
SHA1 hash:
488ba498344af9d0442d6f9fbcf747abaeb43618
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:MALWARE_Win_AgentTeslaV3
Author:ditekSHen
Description:AgentTeslaV3 infostealer payload
Rule name:pe_imphash
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 ac830d0075775ac73ff54540c9f022aeea235b55a075a1f6bd5dc4704005146f

(this sample)

  
Dropped by
agenttesla
  
Delivery method
Distributed via e-mail attachment

Comments