MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 77dd82d858166a180a5de6d9da606500cd41fba6fe1fb7bc09c63162af78bb48. 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
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 77dd82d858166a180a5de6d9da606500cd41fba6fe1fb7bc09c63162af78bb48
SHA3-384 hash: 35fba3a4d710a3c84271bf5b019c7f61155d377e95f1dee350a2be55c32783824aa9139a0176f3fa8040513eeb87848e
SHA1 hash: 0254e7859a88131131fafd7c583637108b62b6fd
MD5 hash: b1d3fd78e907eda6633cff65693d6e8d
humanhash: social-quiet-eight-red
File name:MT103.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:1'169'920 bytes
First seen:2022-12-01 10:06:03 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 24576:KP9cAGtjJQX6C2/aHeWvRC4hDIZDTB8pnzTccO:yC7Jv3NWvMyUoZvN
Threatray 20'243 similar samples on MalwareBazaar
TLSH T1B0454BE51741CC86C415AFFBADA8E4EB975D07EE8BF5A0882D58FD70057192E4B00F8A
TrID 67.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.7% (.EXE) Win64 Executable (generic) (10523/12/4)
6.0% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.1% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon f0ccb2f0ccf0ccf0 (2 x AgentTesla)
Reporter Anonymous
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
182
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
MT103.exe
Verdict:
Malicious activity
Analysis date:
2022-12-01 10:09:08 UTC
Tags:
agenttesla
Link:
https://app.any.run/tasks/b40d9a88-7fdf-4d83-bd4a-505bef18ba46

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/341061/
Detection(s):
SecuriteInfo.com.Win32.CrypterX-gen.5396.15476.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
DNS request
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
Creating a file
Using the Windows Management Instrumentation requests
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/63887c91ec3dbefe4912366f/reports/70abd5c8-60e6-4953-b0c2-eaa9ff9a03b1/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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/06d00b5d-ecef-4195-b5ca-4172f2e1ee94
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1125197
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
.NET source code contains very large array initializations
.NET source code references suspicious native API functions
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)
Sigma detected: Scheduled temp file as task from temp location
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)
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected AntiVM3
Yara detected Generic Downloader
Yara detected Telegram RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 757920 Sample: MT103.exe Startdate: 01/12/2022 Architecture: WINDOWS Score: 100 52 Snort IDS alert for network traffic 2->52 54 Malicious sample detected (through community Yara rule) 2->54 56 Sigma detected: Scheduled temp file as task from temp location 2->56 58 12 other signatures 2->58 7 MT103.exe 6 2->7         started        11 ZRCHTBhOYvtmd.exe 5 2->11         started        13 yqWDN.exe 2 2->13         started        15 yqWDN.exe 1 2->15         started        process3 file4 42 C:\Users\user\AppData\...\ZRCHTBhOYvtmd.exe, PE32 7->42 dropped 44 C:\Users\user\AppData\Local\...\tmp56D2.tmp, XML 7->44 dropped 46 C:\Users\user\AppData\Local\...\MT103.exe.log, ASCII 7->46 dropped 76 Uses schtasks.exe or at.exe to add and modify task schedules 7->76 78 Writes to foreign memory regions 7->78 80 Injects a PE file into a foreign processes 7->80 17 RegSvcs.exe 17 4 7->17         started        22 RegSvcs.exe 7->22         started        24 schtasks.exe 1 7->24         started        82 Multi AV Scanner detection for dropped file 11->82 84 Machine Learning detection for dropped file 11->84 26 RegSvcs.exe 11->26         started        28 schtasks.exe 1 11->28         started        30 conhost.exe 13->30         started        32 conhost.exe 15->32         started        signatures5 process6 dnsIp7 48 api.telegram.org 149.154.167.220, 443, 49715, 49720 TELEGRAMRU United Kingdom 17->48 38 C:\Users\user\AppData\Roaming\...\yqWDN.exe, PE32 17->38 dropped 40 C:\Windows\System32\drivers\etc\hosts, ASCII 17->40 dropped 60 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 17->60 62 Tries to steal Mail credentials (via file / registry access) 17->62 64 Modifies the hosts file 17->64 66 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 22->66 68 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 22->68 34 conhost.exe 24->34         started        50 192.168.2.1 unknown unknown 26->50 70 Tries to harvest and steal ftp login credentials 26->70 72 Tries to harvest and steal browser information (history, passwords, etc) 26->72 74 Hides that the sample has been downloaded from the Internet (zone.identifier) 26->74 36 conhost.exe 28->36         started        file8 signatures9 process10
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/77dd82d858166a180a5de6d9da606500cd41fba6fe1fb7bc09c63162af78bb48/
Threat name:
ByteCode-MSIL.Trojan.Taskun
Create hunting rule
Status:
Malicious
First seen:
2022-12-01 02:50:18 UTC
File Type:
PE (.Net Exe)
Extracted files:
41
AV detection:
21 of 26 (80.77%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=o7oyfwcyczvbqcs543m5uydfadgud65g7yp3ppajyyywfl3yxnea._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
7ef3e3ed9bfe4215f024dcbb80e571f1bd3c99049bda18f711dcf84e05c31543
AgentTesla
9dece1fd7ab0f9e65b23e5789bffa4a5015d9430654ab64b8bf13709bd2a5c14
AgentTesla
cdb83c1ac7057ef8cc61946d1cb4161d53339bdf21d14534bcfbcf8f846d326f
AgentTesla
db1c8853c7a2b03c19247bde4ab3ea41cbf7a15c91caac0ea1eb3cdb265ce3b2
AgentTesla
+ 20'233 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/221201-l44lrsca6z/
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
Drops file in Drivers directory
AgentTesla
Malware Config
C2 Extraction:
https://api.telegram.org/bot1644755040:AAGRTnph6BdO8-t1bJaOyVu9aeuJErmisqs/sendDocument
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/095c6ce1-e810-4c9a-a3b2-6dc2e1bb266b
Unpacked files
SH256 hash:
f76d4e9464fe55cfaa7bd7e7fdb54d1aebbd4f2f61c2cec6764de54a159ab944
MD5 hash:
6aef7432d4c2f24a86cbfbfffa9119c1
SHA1 hash:
8ac7224a0b789d97ede066381b667f4a8a1f60b2
Detections:
AgentTesla
Create hunting rule
Link:
https://www.unpac.me/results/1e3473cd-7349-4dce-84a0-98a5082587e9/
Parent samples :
77dd82d858166a180a5de6d9da606500cd41fba6fe1fb7bc09c63162af78bb48
d9fa47042f446bce08cdbb14d6d08220016133a63d6d7a5313ba9d7a584c27ac
d6f74e0c0585f209929f42958c46b3eb7e650f6e351dfb2820b4ea2aa1155154
d8bc28c6a7d6ae161559b95369d0e50226295913f78f3fc48bdfadb61ee753a5
85d8c7505d9e7309fc517a754d9aada7d30f2e164183863247e998527b113961
09535b3006755b42482262b04d2e68c696ce132b4c4cef30a6d9e139ed888cd2
SH256 hash:
a327516357b9fa1a75753b3fbd0030e13f374be7cefcdf983d0b731f278b0c59
MD5 hash:
404efdeb9931733904da07f96fabeb72
SHA1 hash:
7ce363cd612f1d9a90b33ec196c4d0a49cdaee02
Link:
https://www.unpac.me/results/1e3473cd-7349-4dce-84a0-98a5082587e9/
SH256 hash:
e39f28d394629587a915ac39146ce67760128903cf9987e2a5746f3c78bf0cb8
MD5 hash:
446d35ddd2732800e938f71157023491
SHA1 hash:
47093d57e6ae9d619dda87df1abc50693d354587
Link:
https://www.unpac.me/results/1e3473cd-7349-4dce-84a0-98a5082587e9/
SH256 hash:
77dd82d858166a180a5de6d9da606500cd41fba6fe1fb7bc09c63162af78bb48
MD5 hash:
b1d3fd78e907eda6633cff65693d6e8d
SHA1 hash:
0254e7859a88131131fafd7c583637108b62b6fd
Link:
https://www.unpac.me/results/1e3473cd-7349-4dce-84a0-98a5082587e9/
Malware family:
AgentTesla.v3
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/77dd82d85816/report/overview.html
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/77dd82d858166a180a5de6d9da606500cd41fba6fe1fb7bc09c63162af78bb48

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 77dd82d858166a180a5de6d9da606500cd41fba6fe1fb7bc09c63162af78bb48

(this sample)

  
Dropped by
agenttesla
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/341061/

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