MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e855326ac3c839b8958cbcf3faba5691c84775df5451cc81b06c03fb3104a738. 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 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: e855326ac3c839b8958cbcf3faba5691c84775df5451cc81b06c03fb3104a738
SHA3-384 hash: 3f2de6fa87a74746d316af3d88dea79013f851eaf830dbb0ce94106922cbbd271620cd3df50a9c33450177629573a5a6
SHA1 hash: 3e4438eb1131645a80baf6288929a3133eba8f50
MD5 hash: 50d7b175e32c3dc901593a990767bffd
humanhash: kansas-speaker-july-missouri
File name:doc202204260001010011.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:796'672 bytes
First seen:2022-04-26 14:33:12 UTC
Last seen:2022-04-26 15:46:10 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'658 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:8ZjVBwvel4iKaFMXEZUXMq78LFQDLCSiQeblnPjXiDSMzahX+RWdDuKVPp3Irpy:8Zjy7iXeE+KOvN8lnPjiDS2coWd7B4r
Threatray 16'732 similar samples on MalwareBazaar
TLSH T18705230181F4EBC3EAA91BF741C27DA02BF1E7BB11B5EAAD6C5152C78AA37501394353
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 lowmal3
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
259
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/266827/
Detection(s):
SecuriteInfo.com.W32.AIDetectNet.01.22978.27002.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Launching a process
Creating a process with a hidden window
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/626802dd5a708c968a03d920/reports/c08fae2b-9078-4174-9044-ea4b3bc00076/overview
Result
Verdict:
UNKNOWN
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/a0b5cb23-98b5-4af3-a967-d5f65dbc61dd
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/983315
Signature
.NET source code contains very large array initializations
Adds a directory exclusion to Windows Defender
Found malware configuration
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)
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: Suspicious Add Scheduled Task From User AppData Temp
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 Telegram RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 615811 Sample: doc202204260001010011.exe Startdate: 26/04/2022 Architecture: WINDOWS Score: 100 33 Found malware configuration 2->33 35 Malicious sample detected (through community Yara rule) 2->35 37 Multi AV Scanner detection for dropped file 2->37 39 10 other signatures 2->39 7 doc202204260001010011.exe 7 2->7         started        process3 file4 23 C:\Users\user\AppData\Roaming\yzmTUHffw.exe, PE32 7->23 dropped 25 C:\Users\...\yzmTUHffw.exe:Zone.Identifier, ASCII 7->25 dropped 27 C:\Users\user\AppData\Local\...\tmp96B6.tmp, XML 7->27 dropped 29 C:\Users\...\doc202204260001010011.exe.log, ASCII 7->29 dropped 41 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 7->41 43 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 7->43 45 Uses schtasks.exe or at.exe to add and modify task schedules 7->45 47 2 other signatures 7->47 11 doc202204260001010011.exe 15 2 7->11         started        15 powershell.exe 25 7->15         started        17 schtasks.exe 1 7->17         started        signatures5 process6 dnsIp7 31 api.telegram.org 149.154.167.220, 443, 49750 TELEGRAMRU United Kingdom 11->31 49 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 11->49 51 Tries to steal Mail credentials (via file / registry access) 11->51 53 Tries to harvest and steal ftp login credentials 11->53 55 Tries to harvest and steal browser information (history, passwords, etc) 11->55 19 conhost.exe 15->19         started        21 conhost.exe 17->21         started        signatures8 process9
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/e855326ac3c839b8958cbcf3faba5691c84775df5451cc81b06c03fb3104a738/
Threat name:
ByteCode-MSIL.Backdoor.NetWiredRc
Create hunting rule
Status:
Malicious
First seen:
2022-04-26 14:34:09 UTC
File Type:
PE (.Net Exe)
Extracted files:
11
AV detection:
20 of 26 (76.92%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=5bkte2wdza43rfmmxtz7voswsheeo5o7kri4zanqnqb7wmieu44a._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
2062091ea3279a8954439ab8e4ea0433b5ba01247554bd02943958645cc6275c
AgentTesla
4b0f3abe3b0c7a9356687b4c29c68f9bab4247ca92cf5c37b42eec2881d3d2ec
AgentTesla
60ad9b79fa3fd8d43aad5145ae7916fe04f55e487864946cad9523eaa8de02dd
AgentTesla
6ab30070b29a4095465e89dbc1a4b0788625565aa7608973b274aadd715b5db1
AgentTesla
8bf77994fb5759f8be8d739cd651531fda75de8888c7f579ccafbbadb3b3decb
AgentTesla
d0c6ca3de3ef4d363fd459c2dcd529b8bd7dc3c1b6196e1a913314d89209bd7a
AgentTesla
defbeba113680db4e014a2b34be77a64529d1e0d5fb837e732eec92b842d364d
AgentTesla
ef85f9069eb8f860d143a599a3fe891ddff4341b3f6da959c69e6b6b22d3f53e
AgentTesla
+ 16'722 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla collection keylogger spyware stealer trojan
Link:
https://tria.ge/reports/220426-rxelysdad5/
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
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
AgentTesla
Malware Config
C2 Extraction:
https://api.telegram.org/bot5310370668:AAEdB2nfvvFj53YoaxJ-AleA2m93WUxxyM0/sendDocument
Unpacked files
SH256 hash:
09cd3bc420c8982190990a9673b58c3ab01e933dff0881f1e521d3316f1b9a6b
MD5 hash:
6933707e111286a128ad0f7fa298153f
SHA1 hash:
d1121c8bed634e9684727e8c0aad3f597b0749ad
Link:
https://www.unpac.me/results/eeb76b7c-242b-4975-9df7-4dc1e9a628f3/
SH256 hash:
0cdb66ee6442d7989b4f951ba46c1badfe8e9a45c66d246753c233d19f93ebc1
MD5 hash:
3199b910a65e384e38a09f1d1c08e7e3
SHA1 hash:
c99ad4f639be47ebc71eb7519646e3b62f96e48c
Link:
https://www.unpac.me/results/eeb76b7c-242b-4975-9df7-4dc1e9a628f3/
SH256 hash:
85bdad041bd6a540eec0981ff7a7308b7b704ea8de8ea26d823d7771aa90a379
MD5 hash:
b6ca68834c96585e222e10ff22ec546d
SHA1 hash:
5504160065015a41ad636c66a7e2a4818867346f
Link:
https://www.unpac.me/results/eeb76b7c-242b-4975-9df7-4dc1e9a628f3/
SH256 hash:
7ec921be25beaf87af875328821dae26962e51112e9eeae1aa9929a09db7fd5e
MD5 hash:
898349c1fb33c3ac9f990f293ef7244f
SHA1 hash:
1b9ca5791be4798c067dd263a2a0bbbf4df0754f
Link:
https://www.unpac.me/results/eeb76b7c-242b-4975-9df7-4dc1e9a628f3/
SH256 hash:
e855326ac3c839b8958cbcf3faba5691c84775df5451cc81b06c03fb3104a738
MD5 hash:
50d7b175e32c3dc901593a990767bffd
SHA1 hash:
3e4438eb1131645a80baf6288929a3133eba8f50
Link:
https://www.unpac.me/results/eeb76b7c-242b-4975-9df7-4dc1e9a628f3/
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/e855326ac3c839b8958cbcf3faba5691c84775df5451cc81b06c03fb3104a738

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
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

Executable exe e855326ac3c839b8958cbcf3faba5691c84775df5451cc81b06c03fb3104a738

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/266827/

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