MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b4b71dcc3aa73450558d5059c1e348aebc6ab338321157727194c265724b3e8e. 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 6 File information Comments

SHA256 hash: b4b71dcc3aa73450558d5059c1e348aebc6ab338321157727194c265724b3e8e
SHA3-384 hash: c855de7f750368687fd5f8fe347e308e80b4ac18f308829467512f4a1e56c419acac6182a21ae1da35199fa1207a62fc
SHA1 hash: c9777af93c170b029f4609c3b7b0cfc9bb7531b7
MD5 hash: bedb8460d13cb806ac17d40bc873bbfc
humanhash: comet-beryllium-hawaii-snake
File name:NEW_CV.dox.x.exe
Download: download sample
Signature AgentTesla
File size:929'600 bytes
First seen:2021-06-08 06:32:44 UTC
Last seen:2021-06-08 15:32:58 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'607 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 6144:9Kt1hHU/xvsDIJiW5E3dMZvKjoaKV9D7oWKBhJmHanAXAC6gg4u7tg8xC9W1p8U2:9UYIgHHwdCYLUaeoF7i0GVNmLNpmr
Threatray 5'686 similar samples on MalwareBazaar
TLSH 7B15394DDE4307485971BEEC0B82BEE35220419AA463DF4E1A6897B5E9783FC527C31E
Reporter GovCERT_CH
Tags:AgentTesla exe

Intelligence


File Origin
# of uploads :
5
# of downloads :
103
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
NEW_CV.dox.x.exe
Verdict:
Suspicious activity
Analysis date:
2021-06-08 06:38:43 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
Unauthorized injection to a recently created process
Creating a window
Using the Windows Management Instrumentation requests
Sending a UDP request
Result
Verdict:
UNKNOWN
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
Found malware configuration
Injects a PE file into a foreign processes
Installs a global keyboard hook
Machine Learning detection for sample
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:
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2021-06-07 23:37:32 UTC
AV detection:
3 of 46 (6.52%)
Threat level:
  5/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
family:agenttesla keylogger spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
AgentTesla Payload
AgentTesla
Unpacked files
SH256 hash:
b28e6e3f7fec99caed447580125362a2e604ac8406a6a1120d9a5dc95cd6f349
MD5 hash:
0bc44a940b980aea05ee8e2fecdbc47c
SHA1 hash:
e328c189a80bca87bc779cfca6efdf3128007714
SH256 hash:
79e0f40b66a261d16c025566bcd1dee9e2c0f7c0dd36d3546a550619f441fd64
MD5 hash:
be72699ac97d7fd11d11d9892c95f5b5
SHA1 hash:
58925f5f28410398dacef1200b2d3e4877d12365
SH256 hash:
b4b71dcc3aa73450558d5059c1e348aebc6ab338321157727194c265724b3e8e
MD5 hash:
bedb8460d13cb806ac17d40bc873bbfc
SHA1 hash:
c9777af93c170b029f4609c3b7b0cfc9bb7531b7
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:ach_AgentTesla_20200929
Author:abuse.ch
Description:Detects AgentTesla PE
Rule name:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFu
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
Rule name:MALWARE_Win_AgentTeslaV3
Author:ditekSHen
Description:AgentTeslaV3 infostealer payload
Rule name:pe_imphash
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash
Rule name:win_agent_tesla_v1
Author:Johannes Bader @viql
Description:detects Agent Tesla

File information


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

Malspam

AgentTesla

Executable exe b4b71dcc3aa73450558d5059c1e348aebc6ab338321157727194c265724b3e8e

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments