MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 994fa755944555aa46ecbf95958ee92c732100468d2fe3b436292c769cb86b46. 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 18 File information Comments
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SHA256 hash: 994fa755944555aa46ecbf95958ee92c732100468d2fe3b436292c769cb86b46
SHA3-384 hash: ecf5a0d6d033ff04fb9d1c1464efcea372b3c9e88f0739bdb18a0396960899099e5b71ba58fa4a141d03f3e9fdbe3452
SHA1 hash: 025c1585b47bb5420aedf4828983c68d0a7b8fe5
MD5 hash: cdf83fe1a3a1635ee4e7ba3710e4e2f6
humanhash: artist-hot-triple-four
File name:NCBGRTF-576TER4 .exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:782'336 bytes
First seen:2024-05-28 13:47:19 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'738 x AgentTesla, 19'596 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:SQl1yvK/qzHkrYof7c0K+iBumd48/v9Ekfb583GPaCWjOLD1skRVyGaTFUYc6isb:SIyxzErrI0hiwd4GkfbHiCWUDlR0GLyN
Threatray 2'039 similar samples on MalwareBazaar
TLSH T196F41202315AAF00EABE5BF20C741AE45BF6B2BB25A1F21D9DC132CD5CAAF51165170F
TrID 69.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.0% (.EXE) Win64 Executable (generic) (10523/12/4)
6.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.2% (.EXE) Win32 Executable (generic) (4504/4/1)
1.9% (.EXE) Win16/32 Executable Delphi generic (2072/23)
File icon (PE):PE icon
dhash icon 00d0d070d0607000 (6 x AgentTesla, 6 x Formbook, 1 x RemcosRAT)
Reporter James_inthe_box
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
331
Origin country :
US US
Vendor Threat Intelligence
Malware family:
agenttesla
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ID:
1
File name:
994fa755944555aa46ecbf95958ee92c732100468d2fe3b436292c769cb86b46.exe
Verdict:
Malicious activity
Analysis date:
2024-05-28 13:50:18 UTC
Tags:
smtp exfiltration stealer agenttesla
Link:
https://app.any.run/tasks/5b280eb2-5c25-4fad-b233-6c49d067a380

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Trojan.Packed2.46841.15301.29898.UNOFFICIAL
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Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6655e0a15721c8e5271782dawin7simulatehigh_evasion
Tags:
Banker Encryption Execution Network Gensteal Dexter
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Creating a process with a hidden window
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a file in the %temp% directory
Launching a process
Creating a file
Using the Windows Management Instrumentation requests
Enabling autorun by creating a file
Unauthorized injection to a system process
Adding an exclusion to Microsoft Defender
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/994fa755944555aa46ecbf95958ee92c732100468d2fe3b436292c769cb86b46
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/2b57a647-c742-4810-93a2-ddd9822ffce3
Result
Threat name:
AgentTesla
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Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1448937
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Adds a directory exclusion to Windows Defender
AI detected suspicious sample
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Contains functionality to log keystrokes (.Net Source)
Found malware configuration
Injects a PE file into a foreign processes
Loading BitLocker PowerShell Module
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
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)
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected AntiVM3
Yara detected Generic Downloader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1448937 Sample: NCBGRTF-576TER4#U00a0.exe Startdate: 29/05/2024 Architecture: WINDOWS Score: 100 42 mail.diginetbd.net 2->42 44 diginetbd.net 2->44 46 api.ipify.org 2->46 52 Found malware configuration 2->52 54 Malicious sample detected (through community Yara rule) 2->54 56 Antivirus / Scanner detection for submitted sample 2->56 58 11 other signatures 2->58 8 zhLaskRy.exe 5 2->8         started        11 NCBGRTF-576TER4#U00a0.exe 7 2->11         started        signatures3 process4 file5 60 Antivirus detection for dropped file 8->60 62 Multi AV Scanner detection for dropped file 8->62 64 Machine Learning detection for dropped file 8->64 66 Injects a PE file into a foreign processes 8->66 14 RegSvcs.exe 8->14         started        18 schtasks.exe 8->18         started        38 C:\Users\user\AppData\Roaming\zhLaskRy.exe, PE32 11->38 dropped 40 C:\Users\user\AppData\Local\...\tmp3931.tmp, XML 11->40 dropped 68 Uses schtasks.exe or at.exe to add and modify task schedules 11->68 70 Writes to foreign memory regions 11->70 72 Allocates memory in foreign processes 11->72 74 Adds a directory exclusion to Windows Defender 11->74 20 powershell.exe 23 11->20         started        22 powershell.exe 22 11->22         started        24 RegSvcs.exe 14 2 11->24         started        26 schtasks.exe 1 11->26         started        signatures6 process7 dnsIp8 48 diginetbd.net 72.18.132.34, 49740, 587 WEHOSTWEBSITES-COMUS United States 14->48 76 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 14->76 78 Tries to steal Mail credentials (via file / registry access) 14->78 80 Tries to harvest and steal ftp login credentials 14->80 82 Tries to harvest and steal browser information (history, passwords, etc) 14->82 28 conhost.exe 18->28         started        84 Loading BitLocker PowerShell Module 20->84 30 conhost.exe 20->30         started        32 WmiPrvSE.exe 20->32         started        34 conhost.exe 22->34         started        50 api.ipify.org 104.26.13.205, 443, 49735, 49738 CLOUDFLARENETUS United States 24->50 86 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 24->86 36 conhost.exe 26->36         started        signatures9 process10
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/994fa755944555aa46ecbf95958ee92c732100468d2fe3b436292c769cb86b46
Detection:
agenttesla
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Link:
https://mwdb.cert.pl/sample/994fa755944555aa46ecbf95958ee92c732100468d2fe3b436292c769cb86b46/
Threat name:
ByteCode-MSIL.Spyware.Negasteal
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Status:
Malicious
First seen:
2024-05-27 11:09:19 UTC
File Type:
PE (.Net Exe)
Extracted files:
24
AV detection:
19 of 24 (79.17%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=tfh2ovmuivk2urxmx6kzldxjfrzscacgrux6hnbwfewhnhfynnda._file
Verdict:
malicious
Label(s):
agenttesla_v4
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agenttesla
Create hunting rule
Similar samples:
682ee46ae4bbfeab3f43ed29b2957d70c9b8248ec10a2ebe2481c645d1757cf7
AgentTesla
74a7dd343c4fac52d9d695d8d189a1bf3d5e5578622099bdf731544df385b75d
AgentTesla
aadb33b16813d11fedf84427622b20fe6381534a5ab973adb309e05b5b7be182
AgentTesla
e0046a68adc340b6ae02f1c8924316dd2b914e38f80df71b3453e65d23d58999
AgentTesla
f95c4cfa4575ecce08ce137d4fa5ede9fd4356814c770120dfea81d1e3ed157f
AgentTesla
+ 2'029 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla execution keylogger spyware stealer trojan
Link:
https://tria.ge/reports/240528-q34mlaha67/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Looks up external IP address via web service
Checks computer location settings
Command and Scripting Interpreter: PowerShell
AgentTesla
Unpacked files
SH256 hash:
4ed3b0a80feebddd6441815ea99334d7eab55813713a9aa2953412b767405bb8
MD5 hash:
e472f83fa7fb92da892e8ebda9d92112
SHA1 hash:
af8477c3b9530134042aed375122d395d91879e8
Link:
https://www.unpac.me/results/1c6a3a96-3ace-4838-b84c-e114529d26d3/
SH256 hash:
d21531109c985a4fa8ae540765d4467b36e881c4b7a22ab0ac271cc2a1430265
MD5 hash:
ddd10dcdfcc5778532a3aacb8325c678
SHA1 hash:
896cecdea2c56dc19cef9a6e7612b3dbe655486c
Link:
https://www.unpac.me/results/1c6a3a96-3ace-4838-b84c-e114529d26d3/
SH256 hash:
603b41b9cd534e558680e3211169179f912251381f8be6f519e0eeae27003985
MD5 hash:
abbaa2ef50e2a4e176496645a9355a47
SHA1 hash:
6922da618989debaf120c3530d2f47e03534fd7e
Link:
https://www.unpac.me/results/1c6a3a96-3ace-4838-b84c-e114529d26d3/
SH256 hash:
eee9cebb7f6ce82f19e7968dfbea662525fa31a791ec487567135daf6999015f
MD5 hash:
3eb71bf97a8e0f6ed448254b5c13a042
SHA1 hash:
08c0ad7976742271a5015ae62ede493dec7f8712
Detections:
AgentTesla
Create hunting rule
win_agent_tesla_g2
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
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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
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INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
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Link:
https://www.unpac.me/results/1c6a3a96-3ace-4838-b84c-e114529d26d3/
Parent samples :
52adc27e384cb4ae0d0e096792526ca660f8b2a42e60d69ffd44e67def0fcf12
994fa755944555aa46ecbf95958ee92c732100468d2fe3b436292c769cb86b46
faf0e3fa2a040e49e3abeb69849e3a25ff621bc8499c70dcceb577ba89bb5929
SH256 hash:
994fa755944555aa46ecbf95958ee92c732100468d2fe3b436292c769cb86b46
MD5 hash:
cdf83fe1a3a1635ee4e7ba3710e4e2f6
SHA1 hash:
025c1585b47bb5420aedf4828983c68d0a7b8fe5
Link:
https://www.unpac.me/results/1c6a3a96-3ace-4838-b84c-e114529d26d3/
Malware family:
AgentTesla
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/994fa7559445/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/994fa755944555aa46ecbf95958ee92c732100468d2fe3b436292c769cb86b46

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
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Author:ditekshen
Description:AgentTeslaV3 infostealer payload
Rule name:AgentTeslaV5
Create hunting rule
Author:ClaudioWayne
Description:AgentTeslaV5 infostealer payload
Rule name:Agenttesla_type2
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Agenttesla in memory
Reference:internal research
Rule name:INDICATOR_EXE_Packed_GEN01
Create hunting rule
Author:ditekSHen
Description:Detect packed .NET executables. Mostly AgentTeslaV4.
Rule name:INDICATOR_SUSPICIOUS_Binary_References_Browsers
Create hunting rule
Author:ditekSHen
Description:Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.
Rule name:INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing many email and collaboration clients. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing many file transfer clients. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing Windows vault credential objects. Observed in infostealers
Rule name:malware_Agenttesla_type2
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Author:JPCERT/CC Incident Response Group
Description:detect Agenttesla in memory
Reference:internal research
Rule name:NET
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Author:malware-lu
Rule name:NETexecutableMicrosoft
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
Rule name:Windows_Generic_Threat_9f4a80b2
Create hunting rule
Author:Elastic Security
Rule name:Windows_Trojan_AgentTesla_ebf431a8
Create hunting rule
Author:Elastic Security
Reference:https://www.elastic.co/security-labs/attack-chain-leads-to-xworm-and-agenttesla

File information

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

  
Delivery method
Other

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

Comments