MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8d52ad531a5b78fdb0795a14f972923a14f494f13531da24cff68c9446d80dfa. 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: 18


Intelligence 18 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8d52ad531a5b78fdb0795a14f972923a14f494f13531da24cff68c9446d80dfa
SHA3-384 hash: 7316d7af559e20a3f5bf6df98062c898493c8b7823a41e9b3c914300a5901b419da382e39d7b30f227949833acbdc24c
SHA1 hash: b70991897fc5f7b57caf2fcb2deb5609fe464cb6
MD5 hash: 8d2cc9fab6c3a813a7b0ca4bb9e1f646
humanhash: uncle-one-magazine-fix
File name:Blv6uGYm8ePTGZh.bat
Download: download sample
Signature AgentTesla
Create hunting rule
File size:793'600 bytes
First seen:2024-03-05 13:59:59 UTC
Last seen:2024-03-05 15:29:00 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'600 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:RRgq/mUE7dvoKu0q2mJthcCjdQVnqUQ6cbVkASdhsgy2KU5iqV9Yu:RRgsYdvoKjq8CjXDfRkASdfyAiOY
TLSH T104F4234A63EC1773DA7983F94F15046187F0A8F29A52F76D4E82A8C9693AF20C714F53
TrID 63.0% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.2% (.SCR) Windows screen saver (13097/50/3)
9.0% (.EXE) Win64 Executable (generic) (10523/12/4)
5.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.8% (.EXE) Win32 Executable (generic) (4504/4/1)
Reporter lowmal3
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
3
# of downloads :
374
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
8d52ad531a5b78fdb0795a14f972923a14f494f13531da24cff68c9446d80dfa.exe
Verdict:
Malicious activity
Analysis date:
2024-03-05 14:03:10 UTC
Tags:
stealer agenttesla
Link:
https://app.any.run/tasks/7dad4660-a603-4b94-b80f-609a5bd8b06b

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Porcupine.Malware.58887.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Сreating synchronization primitives
Creating a process with a hidden window
Creating a file in the %temp% directory
Launching a process
Creating a file
Using the Windows Management Instrumentation requests
Forced shutdown of a system process
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
masquerade packed
Link:
https://www.filescan.io/uploads/65e7256606b24253d237cf07/reports/62fa1b0f-9f86-45f0-aa2f-27933dc740a8/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/8d52ad531a5b78fdb0795a14f972923a14f494f13531da24cff68c9446d80dfa
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.
Malware family:
Agent Tesla
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/1a7abc40-8b0a-45c1-bdee-ee61288667d2
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1403456
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Adds a directory exclusion to Windows Defender
Allocates memory in foreign processes
Contains functionality to log keystrokes (.Net Source)
Found malware configuration
Injects a PE file into a foreign processes
Installs a global keyboard hook
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)
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Scheduled temp file as task from temp location
Sigma detected: Silenttrinity Stager Msbuild Activity
Snort IDS alert for network traffic
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)
Uses schtasks.exe or at.exe to add and modify task schedules
Uses the Telegram API (likely for C&C communication)
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected AntiVM3
Yara detected Generic Downloader
Yara detected Telegram RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1403456 Sample: Blv6uGYm8ePTGZh.bat.exe Startdate: 05/03/2024 Architecture: WINDOWS Score: 100 38 api.telegram.org 2->38 40 fp2e7a.wpc.phicdn.net 2->40 42 2 other IPs or domains 2->42 48 Snort IDS alert for network traffic 2->48 50 Found malware configuration 2->50 52 Malicious sample detected (through community Yara rule) 2->52 56 12 other signatures 2->56 8 Blv6uGYm8ePTGZh.bat.exe 7 2->8         started        12 GBFeJTfyOvscRa.exe 5 2->12         started        signatures3 54 Uses the Telegram API (likely for C&C communication) 38->54 process4 file5 34 C:\Users\user\AppData\...behaviorgraphBFeJTfyOvscRa.exe, PE32 8->34 dropped 36 C:\Users\user\AppData\Local\...\tmpACFF.tmp, XML 8->36 dropped 58 Uses schtasks.exe or at.exe to add and modify task schedules 8->58 60 Writes to foreign memory regions 8->60 62 Allocates memory in foreign processes 8->62 64 Adds a directory exclusion to Windows Defender 8->64 14 MSBuild.exe 15 2 8->14         started        18 powershell.exe 23 8->18         started        20 schtasks.exe 1 8->20         started        66 Multi AV Scanner detection for dropped file 12->66 68 Machine Learning detection for dropped file 12->68 70 Injects a PE file into a foreign processes 12->70 22 MSBuild.exe 2 12->22         started        24 schtasks.exe 1 12->24         started        signatures6 process7 dnsIp8 44 api.telegram.org 149.154.167.220, 443, 49703, 49707 TELEGRAMRU United Kingdom 14->44 46 api.ipify.org 104.26.12.205, 443, 49702, 49706 CLOUDFLARENETUS United States 14->46 72 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 14->72 74 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 14->74 76 Tries to steal Mail credentials (via file / registry access) 14->76 26 WmiPrvSE.exe 18->26         started        28 conhost.exe 18->28         started        30 conhost.exe 20->30         started        78 Tries to harvest and steal browser information (history, passwords, etc) 22->78 80 Installs a global keyboard hook 22->80 32 conhost.exe 24->32         started        signatures9 process10
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/8d52ad531a5b78fdb0795a14f972923a14f494f13531da24cff68c9446d80dfa
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/8d52ad531a5b78fdb0795a14f972923a14f494f13531da24cff68c9446d80dfa/
Threat name:
ByteCode-MSIL.Trojan.Generic
Create hunting rule
Status:
Suspicious
First seen:
2024-03-05 14:00:06 UTC
File Type:
PE (.Net Exe)
Extracted files:
12
AV detection:
10 of 38 (26.32%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=rvjk2uy2ln4p3mdzlikps4ushikpjfhrguy5ujgp62gjirwybx5a._file
Verdict:
malicious
Label(s):
agenttesla_v4
Create hunting rule
agenttesla
Create hunting rule
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla keylogger spyware stealer trojan
Link:
https://tria.ge/reports/240305-razcvagd6z/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Suspicious use of SetThreadContext
Looks up external IP address via web service
Checks computer location settings
AgentTesla
Malware Config
C2 Extraction:
https://api.telegram.org/bot6770768679:AAGEmH6O_SdrlBhWJKpNn8TBf_eUXBt3ADo/
Unpacked files
SH256 hash:
c10c9b0882bac6f788f48b4dabe3291b14e639e650f2b9fcb0bc174ac92ae02b
MD5 hash:
7c7fb6daa78beb69128991ff893143ed
SHA1 hash:
c01bb99984b12b84129db80eae1d5d8341a358e2
Link:
https://www.unpac.me/results/7108b5cc-161e-4ebd-b5b3-b681dbb123d3/
SH256 hash:
545f0d58963bae734eda50742cf9f78db188b868b1cd68e37f5bba2bc2c34fbb
MD5 hash:
1bfd87e0f9634e85d97ab3e12280762a
SHA1 hash:
ba3819ab61fc2ba2d0d79ebe31ffea46218fdd61
Link:
https://www.unpac.me/results/7108b5cc-161e-4ebd-b5b3-b681dbb123d3/
SH256 hash:
2efd270f5cd63b735a4173d0c6a46103d841870987204caba6860d4cdc19c865
MD5 hash:
69e6f8ed473e7d1d0d8aa7db69d74942
SHA1 hash:
af9bd973d85ff492d88c084bffb001bbf5b4bc24
Link:
https://www.unpac.me/results/7108b5cc-161e-4ebd-b5b3-b681dbb123d3/
SH256 hash:
07f4465f5f76bd243d7c93d096fc689a5a375719e7db46968cad7612bc3fd2d0
MD5 hash:
873ca474f1de49230f3c0fea9d20c2ee
SHA1 hash:
53eb3f981156b8925f8a40a7d199b486eddac061
Detections:
win_agent_tesla_g2
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
Create hunting rule
Agenttesla_type2
Create hunting rule
INDICATOR_SUSPICIOUS_Binary_References_Browsers
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
Create hunting rule
INDICATOR_EXE_Packed_GEN01
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
Create hunting rule
Link:
https://www.unpac.me/results/7108b5cc-161e-4ebd-b5b3-b681dbb123d3/
SH256 hash:
8d52ad531a5b78fdb0795a14f972923a14f494f13531da24cff68c9446d80dfa
MD5 hash:
8d2cc9fab6c3a813a7b0ca4bb9e1f646
SHA1 hash:
b70991897fc5f7b57caf2fcb2deb5609fe464cb6
Link:
https://www.unpac.me/results/7108b5cc-161e-4ebd-b5b3-b681dbb123d3/
Malware family:
AgentTesla
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/8d52ad531a5b/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/8d52ad531a5b78fdb0795a14f972923a14f494f13531da24cff68c9446d80dfa

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:AgentTesla_DIFF_Common_Strings_01
Create hunting rule
Author:schmidtsz
Description:Identify partial Agent Tesla strings
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.

Malspam

AgentTesla

Executable exe 8d52ad531a5b78fdb0795a14f972923a14f494f13531da24cff68c9446d80dfa

(this sample)

  
Delivery method
Distributed via e-mail attachment

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 (HIGH_ENTROPY_VA)high

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