MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 41b8a012d8dd2aa525aa05e5d296e13d4994110cefa41068adfb80eec0e3efe7. 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: 15


Intelligence 15 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 41b8a012d8dd2aa525aa05e5d296e13d4994110cefa41068adfb80eec0e3efe7
SHA3-384 hash: ac5476d0ce6b4f5f9b9d899b6a73ef265fa9d31869a85e829552502d590d9d80d6351145d7e0a754f108e29999433ed7
SHA1 hash: b56d534cc381e903c00b72b51303750e06438d96
MD5 hash: a2bb76f69192f8d5e0c9c3b15b4463df
humanhash: september-winter-whiskey-beer
File name:SecuriteInfo.com.Win32.DropperX-gen.24037.31354
Download: download sample
Signature AgentTesla
Create hunting rule
File size:285'184 bytes
First seen:2023-11-15 20:20:44 UTC
Last seen:2023-11-16 14:02:09 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'663 x AgentTesla, 19'478 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 3072:PeZVtkIrHcDjxjPDAf9wfBeO4ezEivjvG/tCC9/JMEu5b/pT+5PQt/stbd8Jb8Ji:iEzNfBe5oF5bhiPr8gD
Threatray 2'089 similar samples on MalwareBazaar
TLSH T172544C0C7FB8923BF4CE9775F4654231A3F8E09AA21BE79E9D456CE41D6330748016AB
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)
Reporter SecuriteInfoCom
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
316
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
SecuriteInfo.com.Win32.DropperX-gen.24037.31354
Verdict:
Malicious activity
Analysis date:
2023-11-15 20:22:24 UTC
Tags:
stealer agenttesla
Link:
https://app.any.run/tasks/dd6594b9-9325-4c75-b848-ec46ade66300

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/458771/
Detection(s):
SecuriteInfo.com.Win32.DropperX-gen.24037.31354.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Sending an HTTP GET request
Creating a file in the %AppData% directory
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Using the Windows Management Instrumentation requests
DNS request
Sending a custom TCP request
Reading critical registry keys
Creating a window
Query of malicious DNS domain
Sending a TCP request to an infection source
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Stealing user critical data
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
greyware lolbin macros-on-open packed replace
Link:
https://www.filescan.io/uploads/655528306fbed9188362a852/reports/7f4c87c2-f40c-475d-993e-2fca13303a14/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/41b8a012d8dd2aa525aa05e5d296e13d4994110cefa41068adfb80eec0e3efe7
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.
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/d81b5a1a-7f76-4fae-af9e-d204c9a43985
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1343246
Signature
.NET source code contains potential unpacker
Contains functionality to log keystrokes (.Net Source)
Found malware configuration
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
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)
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)
Yara detected AgentTesla
Yara detected Costura Assembly Loader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1343246 Sample: SecuriteInfo.com.Win32.Drop... Startdate: 15/11/2023 Architecture: WINDOWS Score: 100 36 smtp.zoho.com 2->36 38 qu.ax 2->38 40 2 other IPs or domains 2->40 50 Found malware configuration 2->50 52 Malicious sample detected (through community Yara rule) 2->52 54 Multi AV Scanner detection for submitted file 2->54 56 5 other signatures 2->56 7 Fsdvrvbf.exe 14 5 2->7         started        10 SecuriteInfo.com.Win32.DropperX-gen.24037.31354.exe 16 5 2->10         started        14 Fsdvrvbf.exe 2 2->14         started        signatures3 process4 dnsIp5 58 Multi AV Scanner detection for dropped file 7->58 60 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 7->60 62 Machine Learning detection for dropped file 7->62 16 Fsdvrvbf.exe 7->16         started        20 Fsdvrvbf.exe 7->20         started        42 qu.ax 141.98.234.144, 443, 49704, 49715 CH-NET-ASRO Russian Federation 10->42 28 C:\Users\user\AppData\Roaming\Fsdvrvbf.exe, PE32 10->28 dropped 64 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 10->64 66 Injects a PE file into a foreign processes 10->66 22 SecuriteInfo.com.Win32.DropperX-gen.24037.31354.exe 2 10->22         started        24 SecuriteInfo.com.Win32.DropperX-gen.24037.31354.exe 10->24         started        26 SecuriteInfo.com.Win32.DropperX-gen.24037.31354.exe 10->26         started        file6 signatures7 process8 dnsIp9 30 64.185.227.156, 443, 49717 WEBNXUS United States 16->30 44 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 16->44 46 Tries to steal Mail credentials (via file / registry access) 16->46 48 Tries to harvest and steal browser information (history, passwords, etc) 16->48 32 smtp.zoho.com 136.143.190.56, 49713, 49718, 587 ZOHO-ASUS United States 22->32 34 api4.ipify.org 173.231.16.77, 443, 49712 WEBNXUS United States 22->34 signatures10
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/41b8a012d8dd2aa525aa05e5d296e13d4994110cefa41068adfb80eec0e3efe7
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/41b8a012d8dd2aa525aa05e5d296e13d4994110cefa41068adfb80eec0e3efe7/
Threat name:
ByteCode-MSIL.Trojan.Generic
Create hunting rule
Status:
Suspicious
First seen:
2023-11-15 02:33:39 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
18 of 24 (75.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ig4kaewy3uvkkjnkaxs5ffxbhvezieim56sba2fn7oao5qhd57tq._file
Verdict:
malicious
Label(s):
agenttesla_v4
Create hunting rule
Similar samples:
1a8561c3f0514187a4575028d0425ffd30c9da14d9bc5eece8ee0828e16891dd
AgentTesla
41b8a012d8dd2aa525aa05e5d296e13d4994110cefa41068adfb80eec0e3efe7
AgentTesla
5a434a4d1ccc5536bde2dccfd7b0f794a71ce61ad07ac5e6515997c5677a8f53
AgentTesla
73ebdb87fc583af4874c5239df89bcdf8fb3b81816c3e88e7a5036a777a33101
AgentTesla
9acb3802e7f15ac9c240749ff8c3ebe7a7cd660bedf4b6a6a1edef4de714aa43
AgentTesla
+ 2'079 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/231115-y4zc9sfa7x/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
Looks up external IP address via web service
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:
41b8a012d8dd2aa525aa05e5d296e13d4994110cefa41068adfb80eec0e3efe7
MD5 hash:
a2bb76f69192f8d5e0c9c3b15b4463df
SHA1 hash:
b56d534cc381e903c00b72b51303750e06438d96
Detections:
PureCrypter_Stage1
Create hunting rule
Link:
https://www.unpac.me/results/7a56c61b-86f2-4243-a4b8-3f0fffe6b3e5/
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/41b8a012d8dd2aa525aa05e5d296e13d4994110cefa41068adfb80eec0e3efe7

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:NET
Create hunting rule
Author:malware-lu
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.

Cape
Cape
https://www.capesandbox.com/analysis/458771/

Comments