MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f6ef78e5668f64b9a00f5f7c84a1d1748570fe37bad66c59c62fdfb6407318f8. 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: 12


Intelligence 12 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f6ef78e5668f64b9a00f5f7c84a1d1748570fe37bad66c59c62fdfb6407318f8
SHA3-384 hash: 89be7ba0a504791e53c777f0d8f0dc7deafae04cb156ec66f270a72dc0247d1250c2e153744e77b8894a73c5f77c7d2a
SHA1 hash: b25ff37d124a71e9e91bc1c2ae58abfe73da3f95
MD5 hash: 38325ed2233434b55802736dbb215c27
humanhash: pizza-aspen-ink-georgia
File name:ungziped_file
Download: download sample
Signature AgentTesla
Create hunting rule
File size:55'808 bytes
First seen:2023-05-02 07:43:43 UTC
Last seen:2023-05-13 22:58:17 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'597 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 768:JuujW62bzEZbTfHagdlWCyp9VRpPKG19zYFgnX512MYVtzMzjwwuO:kqW628FaIMXp99KG17X5QMOtuB
Threatray 2'480 similar samples on MalwareBazaar
TLSH T1A2431849A38C4616C7BD7A73EAB0295E5B73C213E4A2E79E0BCC53E605D331279011FA
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
File icon (PE):PE icon
dhash icon b046090c0c0a45b0 (3 x AgentTesla, 1 x Loki)
Reporter adrian__luca
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
248
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
ungziped_file
Verdict:
Malicious activity
Analysis date:
2023-05-02 07:48:35 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/fe1dda81-c5d1-497c-8e29-a4fb30edf650

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/385989/
Detection(s):
SecuriteInfo.com.IL.Trojan.MSILZilla.27439.23054.1523.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
DNS request
Sending a custom TCP request
Launching a process
Creating a process with a hidden window
Creating a window
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/6450bf5e961a21dc785c5845/reports/1ce04144-e9ad-460a-a7f2-0fe3ac0e4fcd/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/f6ef78e5668f64b9a00f5f7c84a1d1748570fe37bad66c59c62fdfb6407318f8
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.
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/d1ea454a-ed98-4c07-a64d-43e36f95bbcf
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1224407
Signature
.NET source code contains potential unpacker
Contains functionality to register a low level keyboard hook
Creates an undocumented autostart registry key
Encrypted powershell cmdline option found
Found malware configuration
Injects a PE file into a foreign processes
Installs a global keyboard hook
May check the online IP address of the machine
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Sample uses string decryption to hide its real strings
Snort IDS alert for network traffic
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal Putty / WinSCP information (sessions, 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 Telegram RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 857389 Sample: ungziped_file.exe Startdate: 02/05/2023 Architecture: WINDOWS Score: 100 36 Snort IDS alert for network traffic 2->36 38 Found malware configuration 2->38 40 Multi AV Scanner detection for dropped file 2->40 42 6 other signatures 2->42 7 ungziped_file.exe 15 7 2->7         started        process3 dnsIp4 24 web.fe.1drv.com 7->24 26 onedrive.live.com 7->26 28 2 other IPs or domains 7->28 20 C:\Users\user\AppData\Roaming\...\Dkuhstz.exe, PE32 7->20 dropped 22 C:\Users\user\...\ungziped_file.exe.log, ASCII 7->22 dropped 44 Creates an undocumented autostart registry key 7->44 46 Encrypted powershell cmdline option found 7->46 48 Writes to foreign memory regions 7->48 50 Injects a PE file into a foreign processes 7->50 12 MSBuild.exe 14 7 7->12         started        16 powershell.exe 16 7->16         started        file5 signatures6 process7 dnsIp8 30 api4.ipify.org 173.231.16.77, 443, 49700 WEBNXUS United States 12->30 32 api.telegram.org 149.154.167.220, 443, 49701, 49702 TELEGRAMRU United Kingdom 12->32 34 2 other IPs or domains 12->34 52 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 12->52 54 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 12->54 56 May check the online IP address of the machine 12->56 58 4 other signatures 12->58 18 conhost.exe 16->18         started        signatures9 process10
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f6ef78e5668f64b9a00f5f7c84a1d1748570fe37bad66c59c62fdfb6407318f8/
Threat name:
ByteCode-MSIL.Trojan.Zilla
Create hunting rule
Status:
Malicious
First seen:
2023-04-28 08:55:39 UTC
File Type:
PE (.Net Exe)
Extracted files:
3
AV detection:
20 of 37 (54.05%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=63xxrzlgr5sltiapl56ijioroscxb7rxxllgywogf7p3mqdtdd4a._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
1d44eb9974bfaa01d6649d74a6e2e90d5188120e9c97e1a1dd357cbf56efcb72
AgentTesla
8dde42f559b48a6ba626f3981dc84afc97a34f3906cbdc0f82c45122a420a22e
AgentTesla
8e29d519291fb68d63f8c3b163c207f6445dd99479bff557b7fc090e780031c5
AgentTesla
8e30c72622b6ef1dedee5b6e5b0d0a57272fd3d5caad2f50bd841e94bcdbf171
AgentTesla
ae09a489456853627af0712efb0be6a0ad9549b542aec4bce43653e03d956c3a
AgentTesla
b37a81f6f7d740289169911e85526837ccf784fb6e86ebbc0ebb29cf50c6735b
AgentTesla
b913edce11172f6f93a4ba563730c63f4e426d2269a4790d3ea071b661467c6a
AgentTesla
de31d1f0ba1f83e39610fb2450f77f6f2b18d6f2f4a997b2801cc107efdaeb46
AgentTesla
e5c00a2b8387035571e3fda34adc2dada643b6bcef043ccfa2d2027a2030e728
AgentTesla
+ 2'470 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/230502-jkweyaab35/
Behaviour
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
Looks up external IP address via web service
Checks computer location settings
AgentTesla
Malware Config
C2 Extraction:
https://api.telegram.org/bot6261426177:AAGKVvStJVx3AbPod6gVs0gLfIFG75EuCzc/
Unpacked files
SH256 hash:
f6ef78e5668f64b9a00f5f7c84a1d1748570fe37bad66c59c62fdfb6407318f8
MD5 hash:
38325ed2233434b55802736dbb215c27
SHA1 hash:
b25ff37d124a71e9e91bc1c2ae58abfe73da3f95
Link:
https://www.unpac.me/results/fb75003c-e925-4340-9674-6eaf86b98abc/
Malware family:
AgentTesla.v4
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/f6ef78e5668f/report/overview.html
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:MSIL_SUSP_OBFUSC_XorStringsNet
Create hunting rule
Author:dr4k0nia
Description:Detects XorStringsNET string encryption, and other obfuscators derived from it
Reference:https://github.com/dr4k0nia/yara-rules
Rule name:msil_susp_obf_xorstringsnet
Create hunting rule
Author:dr4k0nia
Description:Detects XorStringsNET string encryption, and other obfuscators derived from it
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 f6ef78e5668f64b9a00f5f7c84a1d1748570fe37bad66c59c62fdfb6407318f8

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/385989/

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