MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 74d261f737365ae8f8777ad29dc201feba27d57fc6d061ba9ada91a98ac357a6. 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 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 74d261f737365ae8f8777ad29dc201feba27d57fc6d061ba9ada91a98ac357a6
SHA3-384 hash: 18574b6ac4b2cc52c08b41ea25c804d352665f02d3f69870fe57121eaaa11de083fbcca93d813c37eb90d471881fc09d
SHA1 hash: 5f5fedf8e387221a10a6e52dbf61111cf7764822
MD5 hash: 51e958c24606a72af78b10022f2fbb7b
humanhash: march-may-wyoming-saturn
File name:51e958c24606a72af78b10022f2fbb7b.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:720'896 bytes
First seen:2020-08-31 14:04:11 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 24f26e153c9b6068c0a4770547eb6d9e (14 x Loki, 7 x AgentTesla, 2 x Formbook)
ssdeep 12288:qCbpcLhilrm7G8oclWEAroCo3DQmTBikn0hdishvkmHmxp+566S:NuLhi80Jro78OyYshIx4m
TLSH FAE4AE12E3A3443EF172363D9D3B56BC9826BE51292C59472BE4DC7C6E393423927287
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
AgentTesla SMTP exfil server:
mail.carbontunisie.net:587

Intelligence

File Origin
# of uploads :
1
# of downloads :
84
Origin country :
n/a
Vendor Threat Intelligence
Detection:
AgentTeslaV2
Create hunting rule
Link:
https://www.capesandbox.com/analysis/53613/
Detection(s):
SecuriteInfo.com.Win32.Herz.B.23927.UNOFFICIAL
Create hunting rule

PUA.Win.Adware.Slugin-6803969-0
Create hunting rule

PUA.Win.Adware.Slugin-6840354-0
Create hunting rule

SecuriteInfo.com.Variant.Zusy.307895.13627.19246.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Sending a UDP request
Using the Windows Management Instrumentation requests
Creating a file in the %AppData% subdirectories
Enabling the 'hidden' option for recently created files
Reading critical registry keys
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Stealing user critical data
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/455653
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Contains functionality to detect sleep reduction / modifications
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Machine Learning detection for dropped file
Machine Learning detection for sample
Maps a DLL or memory area into another process
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)
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 access)
Yara detected AgentTesla
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 280209 Sample: YU77JO82FS.exe Startdate: 31/08/2020 Architecture: WINDOWS Score: 100 32 Found malware configuration 2->32 34 Antivirus / Scanner detection for submitted sample 2->34 36 Multi AV Scanner detection for submitted file 2->36 38 2 other signatures 2->38 6 Myfile.exe 2->6         started        9 YU77JO82FS.exe 2->9         started        11 Myfile.exe 2->11         started        process3 signatures4 40 Antivirus detection for dropped file 6->40 42 Multi AV Scanner detection for dropped file 6->42 44 Detected unpacking (changes PE section rights) 6->44 54 2 other signatures 6->54 13 Myfile.exe 4 6->13         started        46 Detected unpacking (overwrites its own PE header) 9->46 48 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 9->48 50 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 9->50 17 YU77JO82FS.exe 2 7 9->17         started        52 Maps a DLL or memory area into another process 11->52 20 Myfile.exe 4 11->20         started        process5 dnsIp6 26 mail.carbontunisie.net 13->26 56 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 13->56 58 Tries to steal Mail credentials (via file access) 13->58 60 Tries to harvest and steal ftp login credentials 13->60 62 Tries to harvest and steal browser information (history, passwords, etc) 13->62 28 carbontunisie.net 192.185.168.219, 49729, 49733, 587 UNIFIEDLAYER-AS-1US United States 17->28 30 mail.carbontunisie.net 17->30 22 C:\Users\user\AppData\Roaming\...\Myfile.exe, PE32 17->22 dropped 24 C:\Users\user\...\Myfile.exe:Zone.Identifier, ASCII 17->24 dropped 64 Hides that the sample has been downloaded from the Internet (zone.identifier) 17->64 file7 signatures8
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/74d261f737365ae8f8777ad29dc201feba27d57fc6d061ba9ada91a98ac357a6/
Threat name:
Win32.Trojan.LokiBot
Create hunting rule
Status:
Malicious
First seen:
2020-07-31 04:06:22 UTC
AV detection:
43 of 48 (89.58%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=otjgd5zxgznor6dxpljj3qqb725cpvl7y3igdou23ki2tcwdk6ta._file
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
upx keylogger stealer persistence spyware trojan family:agenttesla
Link:
https://tria.ge/reports/200831-gfzcbylrcs/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
UPX packed file
AgentTesla Payload
AgentTesla
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Lokibot
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/74d261f737365ae8f8777ad29dc201feba27d57fc6d061ba9ada91a98ac357a6

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:Agenttesla_type2
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Agenttesla in memory
Reference:internal research
Rule name:CAP_HookExKeylogger
Create hunting rule
Author:Brian C. Bell -- @biebsmalwareguy
Reference:https://github.com/DFIRnotes/rules/blob/master/CAP_HookExKeylogger.yar
Rule name:win_agent_tesla_w1
Create hunting rule
Author:govcert_ch
Description:Detect Agent Tesla based on common .NET code sequences

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Web download

AgentTesla

Executable exe 74d261f737365ae8f8777ad29dc201feba27d57fc6d061ba9ada91a98ac357a6

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/447252/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/53613/

Comments