MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8384f8d4f7aa78bf714430dff727e986431db171b9fd0bd10ce3cdcc12255acd. 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 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8384f8d4f7aa78bf714430dff727e986431db171b9fd0bd10ce3cdcc12255acd
SHA3-384 hash: 4d6c2aa74174de2189cf3a9cc63d9ce3d6ce2f22e30953ebe7f68ab89f980da03c012478aafde421ede51eb22e84066a
SHA1 hash: 75aad8e26819324178d0a80d2940d32d671d1048
MD5 hash: b8814f52b338b1852ad9fe0b64421d7e
humanhash: pluto-ink-ack-foxtrot
File name:8C363578 & 8C366195.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:821'760 bytes
First seen:2022-04-21 11:56:24 UTC
Last seen:2022-04-21 12:43:33 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'650 x AgentTesla, 19'462 x Formbook, 12'203 x SnakeKeylogger)
ssdeep 24576:gZ1cP8IU6+Sk6xv+gkrHg3JR/Q2KwWSIGftA3YLt+7:O6PlU6VlJJR/rl63y
Threatray 16'281 similar samples on MalwareBazaar
TLSH T14005F19C726031EFC86BD975DE682C74E7A168AB430B9207A12705EDEE5C897CF141F2
TrID 30.2% (.EXE) Win64 Executable (generic) (10523/12/4)
18.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
14.4% (.EXE) Win16 NE executable (generic) (5038/12/1)
12.9% (.EXE) Win32 Executable (generic) (4505/5/1)
5.9% (.EXE) Win16/32 Executable Delphi generic (2072/23)
File icon (PE):PE icon
dhash icon 0000000000000000 (872 x AgentTesla, 496 x Formbook, 296 x RedLineStealer)
Reporter Racco42
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
241
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/265436/
Detection(s):
SecuriteInfo.com.Trojan.GenericKD.50162750.21720.620.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
Launching a process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
control.exe obfuscated packed update.exe
Link:
https://www.filescan.io/uploads/62614690ffe27d5119231f81/reports/7467de58-d281-4ccd-a2e4-86d80e9cae76/overview
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/6d9a3ab2-8652-407b-8267-4a765c1573a8
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/980627
Signature
.NET source code contains very large array initializations
.NET source code references suspicious native API functions
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Found malware configuration
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 sample
Malicious sample detected (through community Yara rule)
Modifies the hosts file
Multi AV Scanner detection for submitted file
PE file contains section with special chars
PE file has nameless sections
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: Silenttrinity Stager Msbuild Activity
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 steal Mail credentials (via file / registry access)
Uses the Telegram API (likely for C&C communication)
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected AntiVM3
Yara detected Telegram RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 613114 Sample: 8C363578 & 8C366195.exe Startdate: 21/04/2022 Architecture: WINDOWS Score: 100 49 Found malware configuration 2->49 51 Malicious sample detected (through community Yara rule) 2->51 53 Multi AV Scanner detection for submitted file 2->53 55 12 other signatures 2->55 6 8C363578 & 8C366195.exe 3 2->6         started        10 ykVBUY.exe 2 2->10         started        12 ykVBUY.exe 1 2->12         started        process3 file4 27 C:\Users\user\...\8C363578 & 8C366195.exe.log, ASCII 6->27 dropped 57 Writes to foreign memory regions 6->57 59 Injects a PE file into a foreign processes 6->59 14 MSBuild.exe 17 4 6->14         started        19 MSBuild.exe 6->19         started        21 MSBuild.exe 6->21         started        23 conhost.exe 10->23         started        25 conhost.exe 12->25         started        signatures5 process6 dnsIp7 33 api.telegram.org 149.154.167.220, 443, 49743 TELEGRAMRU United Kingdom 14->33 35 192.168.2.1 unknown unknown 14->35 29 C:\Users\user\AppData\Roaming\...\ykVBUY.exe, PE32 14->29 dropped 31 C:\Windows\System32\drivers\etc\hosts, ASCII 14->31 dropped 37 Tries to steal Mail credentials (via file / registry access) 14->37 39 Tries to harvest and steal browser information (history, passwords, etc) 14->39 41 Modifies the hosts file 14->41 47 2 other signatures 14->47 43 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 19->43 45 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 19->45 file8 signatures9
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/8384f8d4f7aa78bf714430dff727e986431db171b9fd0bd10ce3cdcc12255acd/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-04-20 07:02:07 UTC
File Type:
PE (.Net Exe)
Extracted files:
10
AV detection:
20 of 26 (76.92%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
1aed7661a990d34584f7687545b78a8debc0a905e91bdccb9f2160606c1965c4
AgentTesla
3e30e9b8ee726239b84f9df58456e1c0cb94a7aef2bde6e92180b4ac0c8265aa
AgentTesla
57c86b238023d2629f009c09144cbcca3ef38e7a8cd645aa2ed532df3f552532
AgentTesla
5bb5368fc5e2c601401ddfb1a1b16f40f3efc25ad1e50859f866501625a38b58
AgentTesla
7380437dac95a9a8818fecf9148f3bf84a1eacf3715336493fdcc63b9cf329ab
AgentTesla
a893ba5218f2456a154c43c363d391a3117638c8f300cac0b44ec74c4a56be8c
AgentTesla
cb47c3ff75a2746411df8539d2279f1a15e0e74cb460d9ebd8d9e38347dab36e
AgentTesla
e7fd6c0eda7637225434396b6e189bd76bfae4b201c5b093a0d6bab5c5fda8a6
AgentTesla
+ 16'271 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla collection keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/220421-n4kj1aebg7/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Adds Run key to start application
Drops file in Drivers directory
AgentTesla
Malware Config
C2 Extraction:
https://api.telegram.org/bot1698102386:AAHWYbuf-rLmgfOsAgCnA_t8ncjPXSF5S8c/sendDocument
Unpacked files
SH256 hash:
91fa6fb62e8fde9222cbabb1b938de8b81547e3f9d6246c28a46bd4c6d140c92
MD5 hash:
617427b654e295142d92177ab6eeeb01
SHA1 hash:
f20a33851caa6a3bebc4a2abd0120ed4f26026dd
Link:
https://www.unpac.me/results/548189db-528c-4f3a-947c-41d937b51ada/
SH256 hash:
e649e0d6c577aac4d57e7093d75b1dafcbf641f62110d177a9286749846ddc43
MD5 hash:
ecb7908b31c84e773559219d97756922
SHA1 hash:
ec70bff9e7e0f25b35e99a197a493b41b7553022
Link:
https://www.unpac.me/results/548189db-528c-4f3a-947c-41d937b51ada/
SH256 hash:
766f88e47af11949b632aae7925c57e044dfee41008c4ffc7f0fec4485594b52
MD5 hash:
f5e414239e78caba5100f11f532eb79b
SHA1 hash:
8a25476003ddffa483a18736f143b09cbdece3db
Link:
https://www.unpac.me/results/548189db-528c-4f3a-947c-41d937b51ada/
SH256 hash:
9136d39f5bd4c1520deb3a125a4553ea2a1e42ee2f8f5f3e4cc5753dbf20decb
MD5 hash:
88ededed0edd0dccfb8b712dc5a33198
SHA1 hash:
304c1071ac63babda447e64c483f57227b925590
Link:
https://www.unpac.me/results/548189db-528c-4f3a-947c-41d937b51ada/
SH256 hash:
8384f8d4f7aa78bf714430dff727e986431db171b9fd0bd10ce3cdcc12255acd
MD5 hash:
b8814f52b338b1852ad9fe0b64421d7e
SHA1 hash:
75aad8e26819324178d0a80d2940d32d671d1048
Link:
https://www.unpac.me/results/548189db-528c-4f3a-947c-41d937b51ada/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.35
Link:
https://yomi.yoroi.company/submissions/8384f8d4f7aa78bf714430dff727e986431db171b9fd0bd10ce3cdcc12255acd

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 8384f8d4f7aa78bf714430dff727e986431db171b9fd0bd10ce3cdcc12255acd

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/265436/

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