MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ef31090ad1ea4e41775b66e546cd00d8bf13be0b0c14aaf37ed499c9e25e32df. 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: 13


Intelligence 13 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: ef31090ad1ea4e41775b66e546cd00d8bf13be0b0c14aaf37ed499c9e25e32df
SHA3-384 hash: d8d52c6f2ae4759cbb034ad63d5c7189e055673fa37192a55e014e5a9c8b25d69be41991468dcd46bfa3fa8a62b92bc0
SHA1 hash: 839dd6ebc42e35b6a2da61429a5203bedeebaf51
MD5 hash: 106c3ae4c69d8011bb54a0956c7e2bc8
humanhash: utah-yankee-hamper-papa
File name:106c3ae4c69d8011bb54a0956c7e2bc8.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:745'472 bytes
First seen:2022-11-10 12:34:14 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'454 x Formbook, 12'202 x SnakeKeylogger)
ssdeep 12288:xQ1ivRcr2iNOsECqKrscLitA8gcEHK7S37c+/ErF0p4UqhU+iJ7:xQ1tr1XkhcCJEqKr/uFgmCv7
TLSH T155F4F12A712F9F10C36D367290D6C36077F1AEA66523D60E3FCC32890A337968E75695
TrID 61.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.0% (.SCR) Windows screen saver (13097/50/3)
8.8% (.EXE) Win64 Executable (generic) (10523/12/4)
5.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.2% (.EXE) Win16 NE executable (generic) (5038/12/1)
Reporter abuse_ch
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
193
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Payment.doc
Verdict:
Malicious activity
Analysis date:
2022-11-10 12:24:13 UTC
Tags:
exploit cve-2017-11882 loader
Link:
https://app.any.run/tasks/1943b0f5-85ef-4bbe-8846-0ad6f6b60655

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/331926/
Detection(s):
SecuriteInfo.com.MSIL.Kryptik.WZA.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
Unauthorized injection to a recently created process
Creating a file
Using the Windows Management Instrumentation requests
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/636ceff97662ecf108398fd7/reports/b3a1bbc2-89d9-429f-a572-fe9ab53c5bcd/overview
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.
Malware family:
Agent Tesla
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/c63439f0-512c-448a-bc61-66963e85f1d7
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1110367
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains very large array initializations
.NET source code references suspicious native API functions
Contains functionality to register a low level keyboard hook
Injects a PE file into a foreign processes
Installs a global keyboard hook
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
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
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)
Yara detected AgentTesla
Yara detected AntiVM3
Behaviour
Behavior Graph:
Download SVG
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/ef31090ad1ea4e41775b66e546cd00d8bf13be0b0c14aaf37ed499c9e25e32df/
Threat name:
ByteCode-MSIL.Trojan.Taskun
Create hunting rule
Status:
Malicious
First seen:
2022-11-10 11:17:12 UTC
File Type:
PE (.Net Exe)
Extracted files:
22
AV detection:
20 of 25 (80.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=54yqscwr5jhec523m3suntia3c7rhpqlbqkkv4362sm4tys6glpq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla collection keylogger spyware stealer trojan
Link:
https://tria.ge/reports/221110-psc68abgfm/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
AgentTesla
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/9ad05d71-25d8-48de-9bd0-592519db9a36
Unpacked files
SH256 hash:
a327516357b9fa1a75753b3fbd0030e13f374be7cefcdf983d0b731f278b0c59
MD5 hash:
404efdeb9931733904da07f96fabeb72
SHA1 hash:
7ce363cd612f1d9a90b33ec196c4d0a49cdaee02
Link:
https://www.unpac.me/results/19fdaeab-0fd8-4ad0-8da9-150f76916166/
SH256 hash:
57a331612ae5dd472b04368b56a21fd86f4af404448ae5a9f7cbb5c423ac8b71
MD5 hash:
b9fd33aefc7fc5e2965aad9e165a2e53
SHA1 hash:
5a23e4e96d826975bf49abde260477bfbe24b3f8
Link:
https://www.unpac.me/results/19fdaeab-0fd8-4ad0-8da9-150f76916166/
SH256 hash:
f3a4e8335ce7f1420d0abfeca5206b496ed46d21d3b72e24e8dcb163a4133cf0
MD5 hash:
a57ef785970a962cdb001888d8881c77
SHA1 hash:
09bb7f020db01d8e7b6db16f152059da3295d235
Link:
https://www.unpac.me/results/19fdaeab-0fd8-4ad0-8da9-150f76916166/
SH256 hash:
ef31090ad1ea4e41775b66e546cd00d8bf13be0b0c14aaf37ed499c9e25e32df
MD5 hash:
106c3ae4c69d8011bb54a0956c7e2bc8
SHA1 hash:
839dd6ebc42e35b6a2da61429a5203bedeebaf51
Link:
https://www.unpac.me/results/19fdaeab-0fd8-4ad0-8da9-150f76916166/
Malware family:
AgentTesla.v3
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/ef31090ad1ea/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/ef31090ad1ea4e41775b66e546cd00d8bf13be0b0c14aaf37ed499c9e25e32df

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.

Web download

AgentTesla

Executable exe ef31090ad1ea4e41775b66e546cd00d8bf13be0b0c14aaf37ed499c9e25e32df

(this sample)

Cape
Cape
https://www.capesandbox.com/analysis/331926/
  
URLhaus
https://urlhaus.abuse.ch/url/2259317/
  
Delivery method
Distributed via web download

Comments