MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c8e239d667073d5f1c575a8b1bf2e580435a492deb302a6cd81489caddb337da. 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 2 File information Comments

SHA256 hash: c8e239d667073d5f1c575a8b1bf2e580435a492deb302a6cd81489caddb337da
SHA3-384 hash: be0bfa2f7116a9eacbc3b72882459e2d8630a3dd2d49f025c929bf7063083dd5f8380493b5fa3e8fec3d7fe4b8b81779
SHA1 hash: bb31ad1c5876529a5e9824876606f331ae243294
MD5 hash: 943d9d2c316f57f1bf818850e1f984d0
humanhash: sink-black-timing-aspen
File name:943d9d2c316f57f1bf818850e1f984d0.exe
Download: download sample
Signature AgentTesla
File size:841'728 bytes
First seen:2021-06-18 06:43:40 UTC
Last seen:2021-06-18 07:48:55 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'663 x AgentTesla, 19'478 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:liQJl+hlm4S4F3M9yVa/vmhLsGbLfZskjk0vfXyRjpmJeOIyVd0S1oVn9frjdio0:l/J4WSEvc/LfaGf8ghIGhWAo0
Threatray 6'102 similar samples on MalwareBazaar
TLSH FB05C0212EEE5119F177EF785ED479958BAEFF237602E44E2891334B0633981CD9063A
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
AgentTesla SMTP exfil server:
us2.smtp.mailhostbox.com:587

Intelligence


File Origin
# of uploads :
2
# of downloads :
132
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
943d9d2c316f57f1bf818850e1f984d0.exe
Verdict:
Malicious activity
Analysis date:
2021-06-18 06:45:20 UTC
Tags:
n/a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
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.
Result
Threat name:
AgentTesla
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Found malware configuration
Injects a PE file into a foreign processes
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)
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
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 access)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AgentTesla
Yara detected AntiVM3
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 436575 Sample: n1Z3uvDRtO.exe Startdate: 18/06/2021 Architecture: WINDOWS Score: 100 27 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->27 29 Found malware configuration 2->29 31 Multi AV Scanner detection for dropped file 2->31 33 7 other signatures 2->33 7 n1Z3uvDRtO.exe 7 2->7         started        process3 file4 19 C:\Users\user\AppData\...\bwmkfAVYbP.exe, PE32 7->19 dropped 21 C:\Users\user\AppData\Local\...\tmp8ACB.tmp, XML 7->21 dropped 23 C:\Users\user\AppData\...\n1Z3uvDRtO.exe.log, ASCII 7->23 dropped 35 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 7->35 37 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 7->37 39 Uses schtasks.exe or at.exe to add and modify task schedules 7->39 41 Injects a PE file into a foreign processes 7->41 11 n1Z3uvDRtO.exe 2 7->11         started        15 schtasks.exe 1 7->15         started        signatures5 process6 dnsIp7 25 us2.smtp.mailhostbox.com 208.91.199.224, 49744, 587 PUBLIC-DOMAIN-REGISTRYUS United States 11->25 43 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 11->43 45 Tries to steal Mail credentials (via file access) 11->45 47 Tries to harvest and steal ftp login credentials 11->47 49 Tries to harvest and steal browser information (history, passwords, etc) 11->49 17 conhost.exe 15->17         started        signatures8 process9
Threat name:
Win32.Spyware.Negasteal
Status:
Malicious
First seen:
2021-06-18 06:44:15 UTC
AV detection:
14 of 46 (30.43%)
Threat level:
  2/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
family:agenttesla keylogger spyware stealer trojan
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
AgentTesla Payload
AgentTesla
Unpacked files
SH256 hash:
db7f159f12ac70a9cd7259c92e6d339653f51e6b5f5327400325d253b20c7875
MD5 hash:
0db3054496e364d8c328f5b26d46cdf5
SHA1 hash:
40aed2da4898140f15593c7cb91b427be0823219
SH256 hash:
c8e239d667073d5f1c575a8b1bf2e580435a492deb302a6cd81489caddb337da
MD5 hash:
943d9d2c316f57f1bf818850e1f984d0
SHA1 hash:
bb31ad1c5876529a5e9824876606f331ae243294
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:pe_imphash
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash

File information


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

Web download

AgentTesla

Executable exe c8e239d667073d5f1c575a8b1bf2e580435a492deb302a6cd81489caddb337da

(this sample)

  
Delivery method
Distributed via web download

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