MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 441cc4670d7c22a5b25f09d098e3d47022447e43f020b24f31e1d6ffc525a43f. 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 14 File information Comments

SHA256 hash: 441cc4670d7c22a5b25f09d098e3d47022447e43f020b24f31e1d6ffc525a43f
SHA3-384 hash: c55588f8c4ff35b49b83fee37327058d961c73a9db700f6590a56e3249697270179d108934b59d7f219b41675d290083
SHA1 hash: 9c558d190dd77f56809b34bfda55c0a84022c054
MD5 hash: 5da745246831882189f590ddde193d4a
humanhash: august-venus-lamp-mango
File name:rFiyatveTerminTalebiHk..exe
Download: download sample
Signature AgentTesla
File size:683'520 bytes
First seen:2024-01-08 22:08:26 UTC
Last seen:2024-01-09 07:36:55 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'747 x AgentTesla, 19'638 x Formbook, 12'244 x SnakeKeylogger)
ssdeep 12288:cH1SP+a5rrasvjtl6qD8TGHyG2hmBomg/4/z8T0IbL95i9lSAjdWMBnuiX:cfa5r2IT4Tqyjcomg/8mL9E9l5jIOui
Threatray 4'294 similar samples on MalwareBazaar
TLSH T1CCE4221DA6BCCA34DBD89B7DA262648943F0A74A82C3D790CCD93CD54E3B76141067AF
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) (4505/5/1)
Reporter FXOLabs
Tags:AgentTesla exe

Intelligence


File Origin
# of uploads :
2
# of downloads :
485
Origin country :
BR BR
Vendor Threat Intelligence
Malware family:
agenttesla
ID:
1
File name:
441cc4670d7c22a5b25f09d098e3d47022447e43f020b24f31e1d6ffc525a43f.exe
Verdict:
Malicious activity
Analysis date:
2024-01-08 22:14:26 UTC
Tags:
agenttesla stealer

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Сreating synchronization primitives
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Using the Windows Management Instrumentation requests
Creating a file in the %AppData% subdirectories
Reading critical registry keys
Setting a keyboard event handler
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:
control lolbin masquerade packed
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.
Result
Threat name:
AgentTesla
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Contains functionality to log keystrokes (.Net Source)
Contains functionality to register a low level keyboard hook
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 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)
Snort IDS alert for network traffic
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Yara detected AgentTesla
Yara detected AntiVM3
Yara detected Generic Downloader
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1371516 Sample: rFiyatveTerminTalebiHk..exe Startdate: 08/01/2024 Architecture: WINDOWS Score: 100 27 nogamobilya.com 2->27 29 mail.nogamobilya.com 2->29 41 Snort IDS alert for network traffic 2->41 43 Found malware configuration 2->43 45 Malicious sample detected (through community Yara rule) 2->45 47 8 other signatures 2->47 7 rFiyatveTerminTalebiHk..exe 3 2->7         started        10 ctsdvwT.exe 3 2->10         started        12 ctsdvwT.exe 2 2->12         started        signatures3 process4 signatures5 49 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 7->49 51 Injects a PE file into a foreign processes 7->51 14 rFiyatveTerminTalebiHk..exe 1 5 7->14         started        53 Multi AV Scanner detection for dropped file 10->53 55 Machine Learning detection for dropped file 10->55 57 Contains functionality to register a low level keyboard hook 10->57 19 ctsdvwT.exe 2 10->19         started        21 ctsdvwT.exe 2 12->21         started        process6 dnsIp7 31 nogamobilya.com 185.85.236.83, 49740, 587 HEXANETFR Turkey 14->31 23 C:\Users\user\AppData\Roaming\...\ctsdvwT.exe, PE32 14->23 dropped 25 C:\Users\user\...\ctsdvwT.exe:Zone.Identifier, ASCII 14->25 dropped 33 Tries to steal Mail credentials (via file / registry access) 14->33 35 Hides that the sample has been downloaded from the Internet (zone.identifier) 14->35 37 Installs a global keyboard hook 14->37 39 Tries to harvest and steal browser information (history, passwords, etc) 21->39 file8 signatures9
Threat name:
ByteCode-MSIL.Spyware.Negasteal
Status:
Malicious
First seen:
2024-01-08 12:58:01 UTC
File Type:
PE (.Net Exe)
Extracted files:
7
AV detection:
18 of 37 (48.65%)
Threat level:
  2/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
family:agenttesla keylogger persistence spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Program crash
Suspicious use of SetThreadContext
Adds Run key to start application
Reads user/profile data of local email clients
Reads user/profile data of web browsers
AgentTesla
Unpacked files
SH256 hash:
4ad7f7faead2622899ef13cdc0a0d43fc8af2c6f3a0049b4517326802425b06a
MD5 hash:
df259eb6a1451890995484982a8bea61
SHA1 hash:
63bc375041ccc74842d23b3fe4e463e83d91e7d0
Detections:
AgentTesla win_agent_tesla_g2 INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients Agenttesla_type2 INDICATOR_SUSPICIOUS_Binary_References_Browsers INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients INDICATOR_EXE_Packed_GEN01 INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
SH256 hash:
21afe82a0b71ee589c26f32dc88e0a6e22817f21194b2a83f1807c6cecc8c818
MD5 hash:
440bb4db146ccb1161ac2bcf365d7676
SHA1 hash:
506eda511b46df6e95d86861e70fda81307f8623
SH256 hash:
7f3ef4658a1b5cff1d0964a68f69d36821f8eacb079cd2f43d007897eb7ab0cb
MD5 hash:
3801a4e3937b0b8ab1f2cd8ca16e478c
SHA1 hash:
31bb63eff712380866c11e5591756df45f9965d7
SH256 hash:
8c33bcc8be59a573baf2ae5abf9f03d2bb489ae7e68f7a83cd3c45bfb7e32557
MD5 hash:
10e84127257a76a62c59038136c936bd
SHA1 hash:
132b93ba062a474c7e4382ef55a377cabfb0b3f4
SH256 hash:
441cc4670d7c22a5b25f09d098e3d47022447e43f020b24f31e1d6ffc525a43f
MD5 hash:
5da745246831882189f590ddde193d4a
SHA1 hash:
9c558d190dd77f56809b34bfda55c0a84022c054
Malware family:
AgentTesla
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.

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
Author:ditekshen
Description:AgentTeslaV3 infostealer payload
Rule name:INDICATOR_EXE_Packed_GEN01
Author:ditekSHen
Description:Detect packed .NET executables. Mostly AgentTeslaV4.
Rule name:INDICATOR_SUSPICIOUS_Binary_References_Browsers
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
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
Author:ditekSHen
Description:Detects executables referencing many email and collaboration clients. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
Author:ditekSHen
Description:Detects executables referencing many file transfer clients. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
Author:ditekSHen
Description:Detects executables referencing Windows vault credential objects. Observed in infostealers
Rule name:malware_Agenttesla_type2
Author:JPCERT/CC Incident Response Group
Description:detect Agenttesla in memory
Reference:internal research
Rule name:Multifamily_RAT_Detection
Author:Lucas Acha (http://www.lukeacha.com)
Description:Generic Detection for multiple RAT families, PUPs, Packers and suspicious executables
Rule name:NET
Author:malware-lu
Rule name:NETexecutableMicrosoft
Author:malware-lu
Rule name:pe_imphash
Rule name:Skystars_Malware_Imphash
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 441cc4670d7c22a5b25f09d098e3d47022447e43f020b24f31e1d6ffc525a43f

(this sample)

  
Delivery method
Distributed via e-mail attachment

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