MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 bb51d12b27aa47453f879e2ade5058f7c08c3db72915bbf74f3d925a1a4c6ff9. 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: 16


Intelligence 16 IOCs YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: bb51d12b27aa47453f879e2ade5058f7c08c3db72915bbf74f3d925a1a4c6ff9
SHA3-384 hash: e518a7112fbd56a291654c95b4794ca6266f706a37e55a26d364dc29b66c9409710e9da42033dfb5e603b854ae3d291c
SHA1 hash: 7d1e24761ac41f3b8df68ec151b2954933923d58
MD5 hash: 476fb4775f14d9b1befa243e8e4bad0d
humanhash: november-crazy-queen-lion
File name:bb51d12b27aa47453f879e2ade5058f7c08c3db72915bbf74f3d925a1a4c6ff9
Download: download sample
Signature AgentTesla
Create hunting rule
File size:1'213'952 bytes
First seen:2024-12-03 14:25:48 UTC
Last seen:2024-12-05 15:48:01 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'798 x AgentTesla, 19'707 x Formbook, 12'278 x SnakeKeylogger)
ssdeep 12288:AA94yYOoodIG7eVS7xFNJF/+KTCBktSMdPWsLlUqFU/3JrjWfeiu2cJinAYixFsO:7yyYAdIktBZn2Bkf8S43JrSbYsqe94l
Threatray 3'556 similar samples on MalwareBazaar
TLSH T1E8450AD98EA52256D41331784FAB820D17AD1CB3F6019EC909C380AFEA7E74FDCA85D5
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10522/11/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4504/4/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Magika pebin
Reporter adrian__luca
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
403
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
bb51d12b27aa47453f879e2ade5058f7c08c3db72915bbf74f3d925a1a4c6ff9
Verdict:
Malicious activity
Analysis date:
2024-12-03 15:27:51 UTC
Tags:
evasion stealer agenttesla ftp exfiltration
Link:
https://app.any.run/tasks/093e820b-2348-4126-bf09-954a9885db4c

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Win32.BackdoorX-gen.28588.9166.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
97.4%
Link:
https://cyber-fortress.com/docs/result/index.php?id=674f162f12e85e185e75558c
Tags:
agenttesla crysan
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Launching a process
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
obfuscated vbnet
Link:
https://www.filescan.io/uploads/674f15007bae4cb482fff5ca/reports/82ef148e-59b2-4d75-a32d-7147b2a78fee/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/bb51d12b27aa47453f879e2ade5058f7c08c3db72915bbf74f3d925a1a4c6ff9
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/a1cdd8b1-c8ad-4d5a-99d1-7a82c3da5038
Result
Threat name:
AgentTesla, DarkTortilla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1567528
Signature
.NET source code contains potential unpacker
AI detected suspicious sample
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
Check if machine is in data center or colocation facility
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Contains functionality to log keystrokes (.Net Source)
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
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 network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Queries sensitive video device information (via WMI, Win32_VideoController, 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 ftp login credentials
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 DarkTortilla Crypter
Yara detected Generic Downloader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1567528 Sample: zwW6sDt6hU.exe Startdate: 03/12/2024 Architecture: WINDOWS Score: 100 17 wenhuahui.net.au 2->17 19 ip-api.com 2->19 21 api.ipify.org 2->21 29 Found malware configuration 2->29 31 Malicious sample detected (through community Yara rule) 2->31 33 Antivirus / Scanner detection for submitted sample 2->33 35 10 other signatures 2->35 7 zwW6sDt6hU.exe 3 2->7         started        signatures3 process4 file5 15 C:\Users\user\AppData\...\zwW6sDt6hU.exe.log, ASCII 7->15 dropped 37 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 7->37 39 Writes to foreign memory regions 7->39 41 Allocates memory in foreign processes 7->41 43 2 other signatures 7->43 11 InstallUtil.exe 15 2 7->11         started        signatures6 process7 dnsIp8 23 wenhuahui.net.au 110.173.135.57, 21, 49715, 49716 DIGITALPACIFIC-AUDigitalPacificPtyLtdAustraliaAU Australia 11->23 25 ip-api.com 208.95.112.1, 49714, 80 TUT-ASUS United States 11->25 27 api.ipify.org 104.26.12.205, 443, 49713 CLOUDFLARENETUS United States 11->27 45 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 11->45 47 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 11->47 49 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 11->49 51 5 other signatures 11->51 signatures9
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/bb51d12b27aa47453f879e2ade5058f7c08c3db72915bbf74f3d925a1a4c6ff9
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/bb51d12b27aa47453f879e2ade5058f7c08c3db72915bbf74f3d925a1a4c6ff9/
Threat name:
Win32.Trojan.Leonem
Create hunting rule
Status:
Malicious
First seen:
2024-10-14 03:54:11 UTC
File Type:
PE (.Net Exe)
Extracted files:
21
AV detection:
22 of 38 (57.89%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=xni5ckzhvjdukp4htyvn4ucy67aiypnxfek3x52phwjfugsmn74q._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
078af4066128653bbfceb25b010713cfbdec2582533040e62c03a4638ca4ca9d
AgentTesla
3a0f23dfec606d232d09eb53631b01747e57987e09133fa6efbe3f9394a6e4d0
AgentTesla
bb51d12b27aa47453f879e2ade5058f7c08c3db72915bbf74f3d925a1a4c6ff9
AgentTesla
c9291b5718b7bd41f312bf6d9cf84edd6c57c49d6b6ed42bffd946724b44f149
AgentTesla
error
AgentTesla
+ 3'546 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla discovery keylogger spyware stealer trojan
Link:
https://tria.ge/reports/241203-rrt5fsvjgj/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Looks up external IP address via web service
AgentTesla
Agenttesla family
Verdict:
Suspicious
Tags:
External_IP_Lookup
YARA:
n/a
Link:
https://app.threat.zone/submission/f7c7efec-48d5-4b41-adb5-65aa67a56ecd
Unpacked files
SH256 hash:
bb51d12b27aa47453f879e2ade5058f7c08c3db72915bbf74f3d925a1a4c6ff9
MD5 hash:
476fb4775f14d9b1befa243e8e4bad0d
SHA1 hash:
7d1e24761ac41f3b8df68ec151b2954933923d58
Link:
https://www.unpac.me/results/a348f0ca-ac6e-4652-aa66-1aca5c738c23/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
AgentTesla
Score:
0.90
Link:
https://yomi.yoroi.company/submissions/bb51d12b27aa47453f879e2ade5058f7c08c3db72915bbf74f3d925a1a4c6ff9

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:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:RansomPyShield_Antiransomware
Create hunting rule
Author:XiAnzheng
Description:Check for Suspicious String and Import combination that Ransomware mostly abuse(can create FP)
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.

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (GUARD_CF)high

Comments