MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 540db87dda0e0f89bdd7d58b0ca66d56dad8bd69a95f6c3818eedeb087d00d9b. 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: 17


Intelligence 17 IOCs YARA 6 File information Comments

SHA256 hash: 540db87dda0e0f89bdd7d58b0ca66d56dad8bd69a95f6c3818eedeb087d00d9b
SHA3-384 hash: 796e784fb1993be09911202b0d367b5edb01749a1aeabb7fb0f3b2c0aef44159ce0a031385b2f50c1ea95ba90fbe43a7
SHA1 hash: 2899a3840c6a5f61fe9814cf12b2c4ae41c18502
MD5 hash: 3b335d8d0f44db714208ccd03c78dc03
humanhash: solar-orange-lactose-happy
File name:rShipmentsImportCustomDutydocuments.exe
Download: download sample
Signature AgentTesla
File size:288'899 bytes
First seen:2023-06-09 14:09:03 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 61259b55b8912888e90f516ca08dc514 (1'059 x Formbook, 741 x AgentTesla, 431 x GuLoader)
ssdeep 6144:PYa6NNfcDW98wAeecgMYIts697GdbwF6OdF9358V+1GKD:PY36SkSgMYa9PJdj58VMpD
Threatray 4'368 similar samples on MalwareBazaar
TLSH T1D354222088D8C4BBD6F387721932235FB792FA15A6B81A5F0F00ABB535A01569D1DF73
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10523/12/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon b2a89c96a2cada72 (2'283 x Formbook, 981 x Loki, 803 x AgentTesla)
Reporter FXOLabs
Tags:AgentTesla exe

Intelligence


File Origin
# of uploads :
1
# of downloads :
290
Origin country :
BR BR
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
rShipmentsImportCustomDutydocuments.exe
Verdict:
Malicious activity
Analysis date:
2023-06-09 14:12:11 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 file in the %temp% directory
Creating a window
Creating a file
Unauthorized injection to a recently created process
Using the Windows Management Instrumentation requests
Sending a custom TCP request
Сreating synchronization primitives
DNS request
Reading critical registry keys
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Stealing user critical data
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Behaviour
MalwareBazaar
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
lolbin overlay packed shell32.dll
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, NSISDropper
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
Detected unpacking (changes PE section rights)
Detected unpacking (creates a PE file in dynamic memory)
Detected unpacking (overwrites its own PE header)
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
Found malware configuration
Initial sample is a PE file and has a suspicious name
Machine Learning detection for sample
Maps a DLL or memory area into another process
May check the online IP address of the machine
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Sample has a suspicious name (potential lure to open the executable)
Sample uses string decryption to hide its real strings
Tries to harvest and steal browser information (history, passwords, etc)
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 NSISDropper
Behaviour
Behavior Graph:
Threat name:
Win32.Spyware.Negasteal
Status:
Malicious
First seen:
2023-06-09 03:10:27 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
15 of 37 (40.54%)
Threat level:
  2/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
family:agenttesla collection keylogger persistence spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Enumerates physical storage devices
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Adds Run key to start application
Looks up external IP address via web service
Loads dropped DLL
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
AgentTesla
Unpacked files
SH256 hash:
cebca6871cb431955b00fe44f1af78141e7f1ef0860928ed30d9079e6f080e06
MD5 hash:
6863d29c17eb7ae1eec6e6b29896c291
SHA1 hash:
fc3308337808866bb2557ba4cf82497160c8fecc
SH256 hash:
540db87dda0e0f89bdd7d58b0ca66d56dad8bd69a95f6c3818eedeb087d00d9b
MD5 hash:
3b335d8d0f44db714208ccd03c78dc03
SHA1 hash:
2899a3840c6a5f61fe9814cf12b2c4ae41c18502
Malware family:
AgentTesla
Verdict:
Malicious
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:cobalt_strike_tmp01925d3f
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
Rule name:MSIL_SUSP_OBFUSC_XorStringsNet
Author:dr4k0nia
Description:Detects XorStringsNET string encryption, and other obfuscators derived from it
Reference:https://github.com/dr4k0nia/yara-rules
Rule name:msil_susp_obf_xorstringsnet
Author:dr4k0nia
Description:Detects XorStringsNET string encryption, and other obfuscators derived from it
Rule name:pe_imphash
Rule name:shellcode
Author:nex
Description:Matched shellcode byte patterns
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.

Malspam

AgentTesla

Executable exe 540db87dda0e0f89bdd7d58b0ca66d56dad8bd69a95f6c3818eedeb087d00d9b

(this sample)

  
Delivery method
Distributed via e-mail attachment

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