MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 fb422ed39cbabcab2449fde2224bfa281f4248e08014b4e3a60003842409d7a6. 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 7 File information Comments
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SHA256 hash: fb422ed39cbabcab2449fde2224bfa281f4248e08014b4e3a60003842409d7a6
SHA3-384 hash: ac18b7bcef0cc0a43400dba44b39a091d48579c9522eadbf6ebcf02b0aa3511098eecdc6633c24d018a693617ebbfabd
SHA1 hash: 33f2c75d6d50ba1acaadc92ae64803ecd3ff18ff
MD5 hash: 94140263a36560bda39b02fffafce831
humanhash: lake-sixteen-early-louisiana
File name:SecuriteInfo.com.Win32.CrypterX-gen.8491.21939
Download: download sample
Signature AgentTesla
Create hunting rule
File size:660'488 bytes
First seen:2024-04-29 19:20:53 UTC
Last seen:2024-04-30 07:31:10 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:zuZk4K7sxuUrrN0I+9Vhbb2guOiAjDHIEf9/Q/3LhqvsqDfzltZWYblmeB778Qoo:JsxumrO7cgu4D5fxALhhqDLl9RmeBf
TLSH T1E6E423C823A99781D9FA5FF308DFD1808770F1562E98D7FE0CD19AA63E66380855139A
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 SecuriteInfoCom
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
5
# of downloads :
445
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
fb422ed39cbabcab2449fde2224bfa281f4248e08014b4e3a60003842409d7a6.exe
Verdict:
Malicious activity
Analysis date:
2024-04-29 19:21:15 UTC
Tags:
stealer agenttesla exfiltration
Link:
https://app.any.run/tasks/1abb5eab-0b58-4cef-ab85-65d1a01f1c15

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
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
Creating a file in the %AppData% subdirectories
Reading critical registry keys
DNS request
Connection attempt
Sending a custom TCP request
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Stealing user critical data
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
overlay packed
Link:
https://www.filescan.io/uploads/662ff32314ba3ce8289d81f0/reports/07fed3cf-d696-4c02-8093-e9bb4db759e3/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/fb422ed39cbabcab2449fde2224bfa281f4248e08014b4e3a60003842409d7a6
Malware family:
Agent Tesla
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/107b7df1-f62f-40d4-8c64-9b193dffc60b
Result
Threat name:
AgentTesla, PureLog Stealer
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1433645
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.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
Antivirus detection for URL or domain
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
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
Snort IDS alert for network traffic
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
Yara detected PureLog Stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1433645 Sample: SecuriteInfo.com.Win32.Cryp... Startdate: 29/04/2024 Architecture: WINDOWS Score: 100 53 vw-rmplcars.co.in 2->53 55 mail.vw-rmplcars.co.in 2->55 59 Snort IDS alert for network traffic 2->59 61 Found malware configuration 2->61 63 Malicious sample detected (through community Yara rule) 2->63 65 13 other signatures 2->65 8 SecuriteInfo.com.Win32.CrypterX-gen.8491.21939.exe 7 2->8         started        12 rXxoYFse.exe 5 2->12         started        14 GUIVTme.exe 2->14         started        16 GUIVTme.exe 2->16         started        signatures3 process4 file5 49 C:\Users\user\AppData\Roaming\rXxoYFse.exe, PE32 8->49 dropped 51 C:\Users\user\AppData\Local\...\tmp190A.tmp, XML 8->51 dropped 81 Uses schtasks.exe or at.exe to add and modify task schedules 8->81 83 Writes to foreign memory regions 8->83 85 Allocates memory in foreign processes 8->85 87 Adds a directory exclusion to Windows Defender 8->87 18 RegSvcs.exe 1 4 8->18         started        23 powershell.exe 23 8->23         started        25 powershell.exe 23 8->25         started        27 schtasks.exe 1 8->27         started        89 Multi AV Scanner detection for dropped file 12->89 91 Machine Learning detection for dropped file 12->91 93 Injects a PE file into a foreign processes 12->93 29 RegSvcs.exe 12->29         started        31 schtasks.exe 12->31         started        33 conhost.exe 14->33         started        35 conhost.exe 16->35         started        signatures6 process7 dnsIp8 57 vw-rmplcars.co.in 111.118.215.27, 49710, 49715, 587 PUBLIC-DOMAIN-REGISTRYUS India 18->57 47 C:\Users\user\AppData\Roaming\...behaviorgraphUIVTme.exe, PE32 18->47 dropped 67 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 18->67 69 Hides that the sample has been downloaded from the Internet (zone.identifier) 18->69 71 Loading BitLocker PowerShell Module 23->71 37 WmiPrvSE.exe 23->37         started        39 conhost.exe 23->39         started        41 conhost.exe 25->41         started        43 conhost.exe 27->43         started        73 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 29->73 75 Tries to steal Mail credentials (via file / registry access) 29->75 77 Tries to harvest and steal ftp login credentials 29->77 79 Tries to harvest and steal browser information (history, passwords, etc) 29->79 45 conhost.exe 31->45         started        file9 signatures10 process11
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/fb422ed39cbabcab2449fde2224bfa281f4248e08014b4e3a60003842409d7a6
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/fb422ed39cbabcab2449fde2224bfa281f4248e08014b4e3a60003842409d7a6/
Threat name:
ByteCode-MSIL.Spyware.Negasteal
Create hunting rule
Status:
Malicious
First seen:
2024-04-29 18:53:51 UTC
File Type:
PE (.Net Exe)
Extracted files:
6
AV detection:
19 of 23 (82.61%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=7nbc5u44xk6kwjcj7xrces72fapueshaqakljy5gaabyijaj26ta._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 persistence spyware stealer trojan
Link:
https://tria.ge/reports/240429-x2m2saba8z/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Checks computer location settings
AgentTesla
Unpacked files
SH256 hash:
0f19ca05d1ede93e480a7d3500385de184d6c5dd19a87ff57b729d2ede8ff985
MD5 hash:
d2f506cc4f6e3b644554fa58ce2a7f6a
SHA1 hash:
f9a11bada4fc5f0540b5ed8c22c1c9c971220ecc
Link:
https://www.unpac.me/results/948e4af2-296c-43cd-be7b-2d22cf7eb9a8/
SH256 hash:
580ef9d00e320c821e654d883987185b0159ec5f967a72c708e39f96754a21b8
MD5 hash:
a4601fd39dd947a4d379c492364ef193
SHA1 hash:
edf9f917dd7bd42fe1cd3a92acf631266f5a5d15
Link:
https://www.unpac.me/results/948e4af2-296c-43cd-be7b-2d22cf7eb9a8/
SH256 hash:
4909093c1045073940daf73778f88ce3e5d4dcbc0d69e3498ad4672c2e699013
MD5 hash:
28b43a10958caef0465f7b93be0a0d77
SHA1 hash:
9c85c1cb7f6face0a6c8d0a2d2314a99092d6554
Link:
https://www.unpac.me/results/948e4af2-296c-43cd-be7b-2d22cf7eb9a8/
SH256 hash:
d6c7be329137dba44d7fe6f489bb5ede083ab1ce4601250d2cc7b4eecceff8b9
MD5 hash:
24b613c901bd6c26e98383641c9e7ede
SHA1 hash:
107c9ed98e9061e9a29cea9d041faf7869afd181
Detections:
AgentTesla
Create hunting rule
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/948e4af2-296c-43cd-be7b-2d22cf7eb9a8/
Parent samples :
dde14dd50c9c6215730e8febf0e9526dbf2484038f4d58dc697e6163187b358d
010c6f74aa7941262a2a7f930ed8c89ea50ce13f694d8ab56005bb5aa40b0298
5d2b78785f719fda04cda095b4dfb75d00440fc39ab6e52d176a74786541bdaf
fb422ed39cbabcab2449fde2224bfa281f4248e08014b4e3a60003842409d7a6
0eb53728acb5e4b7c857ed35dacc4ba1264249cada90f5e69d3fde4e9b243190
0c12ddd4730b8976410d8245aeb9f69d148afa2a1ae2a761ff82ca1744dfa207
d6c7be329137dba44d7fe6f489bb5ede083ab1ce4601250d2cc7b4eecceff8b9
SH256 hash:
fb422ed39cbabcab2449fde2224bfa281f4248e08014b4e3a60003842409d7a6
MD5 hash:
94140263a36560bda39b02fffafce831
SHA1 hash:
33f2c75d6d50ba1acaadc92ae64803ecd3ff18ff
Detections:
INDICATOR_KB_CERT_7c1118cbbadc95da3752c46e47a27438
Create hunting rule
Link:
https://www.unpac.me/results/948e4af2-296c-43cd-be7b-2d22cf7eb9a8/
Malware family:
AgentTesla
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/fb422ed39cba/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/fb422ed39cbabcab2449fde2224bfa281f4248e08014b4e3a60003842409d7a6

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:INDICATOR_KB_CERT_7c1118cbbadc95da3752c46e47a27438
Create hunting rule
Author:ditekSHen
Description:Detects executables signed with stolen, revoked or invalid certificates
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:pe_imphash
Create hunting rule
Rule name:PE_Potentially_Signed_Digital_Certificate
Create hunting rule
Author:albertzsigovits
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

zip 33e4bac12cf6ce80c977b9fbfc4b9d517d020698f349e08938533fc7aea87e17

AgentTesla

Executable exe fb422ed39cbabcab2449fde2224bfa281f4248e08014b4e3a60003842409d7a6

(this sample)

  
Dropped by
SHA256 33e4bac12cf6ce80c977b9fbfc4b9d517d020698f349e08938533fc7aea87e17
  
Dropped by
MD5 4c0ab123083e1071c1318dcc35a30ff5

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