MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4a699a693c63228aebd3e0bc98d92fe2d8bb7ae487992e81cfee767f0b9ed1bf. 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 8 File information Comments

SHA256 hash: 4a699a693c63228aebd3e0bc98d92fe2d8bb7ae487992e81cfee767f0b9ed1bf
SHA3-384 hash: 7c99d0006e703848b376937874b3dcd5c2ea94cb9645ea672095b9ddfe1d73e5904d9b6f5122f0162f6a3f7d06e47a97
SHA1 hash: b35abfe54f9dd5f20ef81a07484ed13e6bd72a1e
MD5 hash: 863329b23b220f6900b09370b57adf79
humanhash: coffee-uranus-four-stairway
File name:IMG_Bookfdp.exe
Download: download sample
Signature AgentTesla
File size:1'151'304 bytes
First seen:2023-10-05 09:29:40 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 24576:1uq97s3+UV7RoGfWNca9sq9sAiXdeZwItFeM6IOrJUx1B8TIrxAPznLMWtByjE:PJqb7RoGfWNc4sZPHJUx1OT+KLzgE
Threatray 99 similar samples on MalwareBazaar
TLSH T1A0351823BA5786E2E2483732D5B75C04B360DD82F32BD7AA788E33D519133A79E49507
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
File icon (PE):PE icon
dhash icon dcdc888898ac9cb8 (11 x AgentTesla, 1 x Loki, 1 x DarkCloud)
Reporter abuse_ch
Tags:AgentTesla exe

Intelligence


File Origin
# of uploads :
1
# of downloads :
267
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
agenttesla
ID:
1
File name:
IMG_Bookfdp.exe
Verdict:
Malicious activity
Analysis date:
2023-10-05 09:56:22 UTC
Tags:
stealer agenttesla

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 %AppData% directory
Launching a process
Creating a file
Using the Windows Management Instrumentation requests
Сreating synchronization primitives
DNS request
Sending a custom TCP request
Reading critical registry keys
Creating a window
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Forced shutdown of a system process
Stealing user critical data
Query of malicious DNS domain
Sending a TCP request to an infection source
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
89%
Tags:
overlay packed packed
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:
spre.troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Allocates memory in foreign processes
Antivirus detection for URL or domain
Contains functionality to log keystrokes (.Net Source)
Found malware configuration
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Multi AV Scanner detection for domain / URL
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 uses string decryption to hide its real strings
Sigma detected: MSBuild connects to smtp port
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 Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected AntiVM3
Yara detected Costura Assembly Loader
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1320130 Sample: IMG_Bookfdp.exe Startdate: 05/10/2023 Architecture: WINDOWS Score: 100 25 server1.sqsendy.shop 2->25 27 fp2e7a.wpc.phicdn.net 2->27 29 3 other IPs or domains 2->29 43 Multi AV Scanner detection for domain / URL 2->43 45 Found malware configuration 2->45 47 Antivirus detection for URL or domain 2->47 49 11 other signatures 2->49 7 IMG_Bookfdp.exe 1 5 2->7         started        11 pobqy.exe 5 2->11         started        13 pobqy.exe 4 2->13         started        signatures3 process4 file5 23 C:\Users\user\AppData\Roaming\pobqy.exe, PE32 7->23 dropped 51 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 7->51 53 Writes to foreign memory regions 7->53 55 Allocates memory in foreign processes 7->55 15 MSBuild.exe 15 2 7->15         started        57 Multi AV Scanner detection for dropped file 11->57 59 Machine Learning detection for dropped file 11->59 61 Injects a PE file into a foreign processes 11->61 19 MSBuild.exe 2 11->19         started        21 MSBuild.exe 2 13->21         started        signatures6 process7 dnsIp8 31 server1.sqsendy.shop 63.250.35.178, 49695, 49696, 49698 NAMECHEAP-NETUS United States 15->31 33 api4.ipify.org 104.237.62.212, 443, 49694, 49697 WEBNXUS United States 15->33 35 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 15->35 37 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 15->37 39 Tries to steal Mail credentials (via file / registry access) 15->39 41 Tries to harvest and steal browser information (history, passwords, etc) 21->41 signatures9
Threat name:
Win32.Spyware.Negasteal
Status:
Malicious
First seen:
2023-10-04 00:16:54 UTC
File Type:
PE (.Net Exe)
Extracted files:
11
AV detection:
18 of 36 (50.00%)
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 use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Adds Run key to start application
Looks up external IP address via web service
AgentTesla
Unpacked files
SH256 hash:
25b210a53b439bf10492bbf725b28ffddb7acf0946b4262f56a43d8412ec9785
MD5 hash:
0c58fcab876a56ca960d9ca17055ed19
SHA1 hash:
e0a605bce66768a36eb04b6994c05451ef59b0a8
Detections:
AgentTesla
SH256 hash:
4a9999cfa32f0c8a0928868ac20a06225ad29e0dcd8fdf00e7d62642d4704bf5
MD5 hash:
237e1fb5376e62b70b7bd052a27c720c
SHA1 hash:
507bd0205d5f8cb8468532e2ba6877f786caa9cd
SH256 hash:
19efdf03cb94895935225795f68bb9abfded1869687367013b8b4eee3cc99372
MD5 hash:
4e29f75c0c51b9dec76955f0382d9541
SHA1 hash:
4899aa8e3f57339cbaec8faab777897a76fe1c3a
SH256 hash:
16b640000ec127c86f3b98101a267626a1c0a342042fa0368f11d382e1755df7
MD5 hash:
c4ad7e87d5f0caab7d49a6596f64d3dd
SHA1 hash:
0931e464f3d0ccfcea09e77cc78fc45173256920
SH256 hash:
4a699a693c63228aebd3e0bc98d92fe2d8bb7ae487992e81cfee767f0b9ed1bf
MD5 hash:
863329b23b220f6900b09370b57adf79
SHA1 hash:
b35abfe54f9dd5f20ef81a07484ed13e6bd72a1e
Malware family:
AgentTesla.v4
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:AgentTeslaV3
Author:ditekshen
Description:AgentTeslaV3 infostealer payload
Rule name:INDICATOR_EXE_Packed_GEN01
Author:ditekSHen
Description:Detect packed .NET executables. Mostly AgentTeslaV4.
Rule name:NET
Author:malware-lu
Rule name:NETexecutableMicrosoft
Author:malware-lu
Rule name:PE_Digital_Certificate
Author:albertzsigovits
Rule name:pe_imphash
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash
Rule name:win_agent_tesla_bytecodes_sep_2023
Author:Matthew @embee_research

File information


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

Malspam

AgentTesla

Executable exe 4a699a693c63228aebd3e0bc98d92fe2d8bb7ae487992e81cfee767f0b9ed1bf

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments