MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3bd965bfecd32024ac9cbe54e2ef55ed3603398a89514224ac798ed66e1a5d62. 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 15 File information Comments

SHA256 hash: 3bd965bfecd32024ac9cbe54e2ef55ed3603398a89514224ac798ed66e1a5d62
SHA3-384 hash: d01abfc7bda3692081aa7bf7886c2bd3f119ccadb255c86899f11076039ea2c4507180b1603b3d3f52831524a564dc73
SHA1 hash: c118f7f2c5c051afbc5318a93918a9248c54b4b0
MD5 hash: bedeca88d30c3b96406308e6c25759a0
humanhash: alaska-kansas-east-single
File name:DOC..exe
Download: download sample
Signature AgentTesla
File size:933'888 bytes
First seen:2021-08-04 04:42:11 UTC
Last seen:2021-08-04 06:12:12 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:yQrp+gczyhNSvRbBQHR4qz91hI0zSaNsvz+yuWDVId21NaI+E8tyvXZHtC0cJE/A:yrtRLrtzOyYJeliuM6YIY6MUpXDz
Threatray 10'058 similar samples on MalwareBazaar
TLSH T11915BEA7659C4297EB3FD5B1BD49E521F21968DFB2208D0F76C7A74A40BB202108BD2D
dhash icon cab6ba9abaa6aa00 (3 x AgentTesla)
Reporter GovCERT_CH
Tags:AgentTesla exe

Intelligence


File Origin
# of uploads :
4
# of downloads :
174
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
DOC..exe
Verdict:
Malicious activity
Analysis date:
2021-08-04 04:45:13 UTC
Tags:
n/a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Deleting a recently created file
Creating a file
Using the Windows Management Instrumentation requests
Creating a file in the %AppData% subdirectories
Reading critical registry keys
Forced shutdown of a system process
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Stealing user critical data
Enabling autorun by creating a file
Unauthorized injection to a system process
Changing the hosts file
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.adwa.spyw.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
.NET source code contains very large strings
Allocates memory in foreign processes
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
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)
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
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected AntiVM3
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 459049 Sample: DOC..exe Startdate: 04/08/2021 Architecture: WINDOWS Score: 100 48 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->48 50 Multi AV Scanner detection for dropped file 2->50 52 Multi AV Scanner detection for submitted file 2->52 54 5 other signatures 2->54 7 DOC..exe 6 2->7         started        11 WCPCe.exe 2 2->11         started        13 WCPCe.exe 1 2->13         started        process3 file4 32 C:\Users\user\AppData\...\sduDIBVEePpfaJ.exe, PE32 7->32 dropped 34 C:\Users\user\AppData\Local\...\tmp9808.tmp, XML 7->34 dropped 36 C:\Users\user\AppData\Local\...\DOC..exe.log, ASCII 7->36 dropped 56 Uses schtasks.exe or at.exe to add and modify task schedules 7->56 58 Writes to foreign memory regions 7->58 60 Allocates memory in foreign processes 7->60 62 Injects a PE file into a foreign processes 7->62 15 RegSvcs.exe 2 4 7->15         started        20 schtasks.exe 1 7->20         started        22 conhost.exe 11->22         started        24 conhost.exe 13->24         started        signatures5 process6 dnsIp7 38 mail.tejoofashions.com 148.66.138.106, 49726, 587 AS-26496-GO-DADDY-COM-LLCUS Singapore 15->38 28 C:\Users\user\AppData\Roaming\...\WCPCe.exe, PE32 15->28 dropped 30 C:\Windows\System32\drivers\etc\hosts, ASCII 15->30 dropped 40 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 15->40 42 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 15->42 44 Tries to steal Mail credentials (via file access) 15->44 46 5 other signatures 15->46 26 conhost.exe 20->26         started        file8 signatures9 process10
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2021-08-03 05:19:30 UTC
AV detection:
16 of 27 (59.26%)
Threat level:
  5/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
family:agenttesla keylogger persistence 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
Adds Run key to start application
Drops file in Drivers directory
AgentTesla Payload
AgentTesla
Unpacked files
SH256 hash:
c362729899c5956cfa9fc3bcf9b21ac72066a1b84a497ceb1281f76e2f55c54b
MD5 hash:
0327d1374a5ce015ad9c83c5de76e823
SHA1 hash:
e521349d9e96a4191248747c42c78b6f88fc8f63
SH256 hash:
3170440b4d9aeaa86bd060a3139779e2cdc0eea541bced3274c98a317b7f65f3
MD5 hash:
220487cb462d66fd6a377b1bf3589acb
SHA1 hash:
d23164923eb2d34151886874e01c1ca0bfdbd17e
SH256 hash:
3bd965bfecd32024ac9cbe54e2ef55ed3603398a89514224ac798ed66e1a5d62
MD5 hash:
bedeca88d30c3b96406308e6c25759a0
SHA1 hash:
c118f7f2c5c051afbc5318a93918a9248c54b4b0
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:AgentTeslaV2
Author:ditekshen
Description:AgenetTesla Type 2 Keylogger payload
Rule name:AgentTeslaV3
Author:ditekshen
Description:AgentTeslaV3 infostealer payload
Rule name:AgentTesla_extracted_bin
Author:James_inthe_box
Description:AgentTesla extracted
Rule name:AgentTesla_mod_tough_bin
Author:James_inthe_box
Reference:https://app.any.run/tasks/3b5d409c-978b-4a95-a5f1-399f0216873d/
Rule name:Agenttesla_telegram_bin
Author:James_inthe_box
Reference:https://app.any.run/tasks/b4ceef1e-a649-44b7-9e0c-e53c3ab05354
Rule name:Agenttesla_type2
Author:JPCERT/CC Incident Response Group
Description:detect Agenttesla in memory
Reference:internal research
Rule name:agent_tesla_2019
Author:jeFF0Falltrades
Rule name:MALWARE_Win_AgentTeslaV2
Author:ditekSHen
Description:AgenetTesla Type 2 Keylogger payload
Rule name:MALWARE_Win_AgentTeslaV3
Author:ditekSHen
Description:AgentTeslaV3 infostealer payload
Rule name:pe_imphash
Rule name:pe_imphash
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash
Rule name:Telegram_Exfiltration_Via_Api
Author:lsepaolo
Rule name:win_agent_tesla_v1
Author:Johannes Bader @viql
Description:detects Agent Tesla
Rule name:win_agent_tesla_w1
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.

Malspam

AgentTesla

Executable exe 3bd965bfecd32024ac9cbe54e2ef55ed3603398a89514224ac798ed66e1a5d62

(this sample)

  
Dropped by
AgentTesla
  
Delivery method
Distributed via e-mail attachment

Comments