MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b676171dc6dc8e2fd1737a88c2dd52370c1a800cc6ee18e947341395fc76bb17. 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 3 File information Comments

SHA256 hash: b676171dc6dc8e2fd1737a88c2dd52370c1a800cc6ee18e947341395fc76bb17
SHA3-384 hash: 3849b314a47e4b038a1c8fad05d4a42354b377cec82bb93943c740d573f1b684b67d8c4b3234cd30e7e2fbcfd9bd2574
SHA1 hash: 1535bbbe5fdbc30e5bdc0daf4242cd43b1728ca8
MD5 hash: 985c7c8f5dff6916d2bcfdd2bb6541ee
humanhash: kilo-colorado-fifteen-stairway
File name:LPO 00864.exe
Download: download sample
Signature AgentTesla
File size:607'232 bytes
First seen:2023-08-10 12:27:40 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'647 x AgentTesla, 19'451 x Formbook, 12'201 x SnakeKeylogger)
ssdeep 12288:KtL87+2pdcFJ7WJ72+9bRgJXVpIrKj4GMl9+yEWD2FKt44mYx1PKL8Llj+6L8:Og7+2pdcFJiJ72+BRQXsyqEo2FKt44mx
Threatray 832 similar samples on MalwareBazaar
TLSH T1A5D423515710246AC8B4DBBD684B3A9363F4720F82F1E9AF75C420E94D3DBB91B02F66
TrID 61.9% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.1% (.SCR) Windows screen saver (13097/50/3)
8.9% (.EXE) Win64 Executable (generic) (10523/12/4)
5.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.8% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon 6810707169700020 (10 x AgentTesla, 7 x Formbook)
Reporter lowmal3
Tags:AgentTesla exe

Intelligence


File Origin
# of uploads :
1
# of downloads :
275
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
agenttesla
ID:
1
File name:
LPO 00864.exe
Verdict:
Malicious activity
Analysis date:
2023-08-10 12:28:09 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
Sending a custom TCP request
Сreating synchronization primitives
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a process with a hidden window
Creating a file in the %temp% directory
Launching a process
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
comodo formbook packed remcos
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 potential unpacker
Adds a directory exclusion to Windows Defender
Found malware configuration
Initial sample is a PE file and has a suspicious name
Machine Learning detection for dropped file
Machine Learning detection for sample
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)
Sample uses string decryption to hide its real strings
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 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
Yara detected AgentTesla
Yara detected AntiVM3
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1289337 Sample: LPO_00864.exe Startdate: 10/08/2023 Architecture: WINDOWS Score: 100 45 Snort IDS alert for network traffic 2->45 47 Found malware configuration 2->47 49 Sigma detected: Scheduled temp file as task from temp location 2->49 51 7 other signatures 2->51 7 LPO_00864.exe 7 2->7         started        11 BxrTNzTYx.exe 5 2->11         started        process3 file4 33 C:\Users\user\AppData\Roaming\BxrTNzTYx.exe, PE32 7->33 dropped 35 C:\Users\user\AppData\Local\...\tmpD851.tmp, XML 7->35 dropped 53 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 7->53 55 Uses schtasks.exe or at.exe to add and modify task schedules 7->55 57 Adds a directory exclusion to Windows Defender 7->57 13 LPO_00864.exe 7 7->13         started        17 powershell.exe 20 7->17         started        19 schtasks.exe 1 7->19         started        59 Multi AV Scanner detection for dropped file 11->59 61 Machine Learning detection for dropped file 11->61 21 BxrTNzTYx.exe 7 11->21         started        23 schtasks.exe 1 11->23         started        25 BxrTNzTYx.exe 11->25         started        signatures5 process6 dnsIp7 37 smtp.quartziax.com 13->37 39 us2.smtp.mailhostbox.com 208.91.199.223, 25, 49704, 49705 PUBLIC-DOMAIN-REGISTRYUS United States 13->39 27 conhost.exe 17->27         started        29 conhost.exe 19->29         started        41 smtp.quartziax.com 21->41 43 192.168.2.1 unknown unknown 21->43 63 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 21->63 65 Tries to steal Mail credentials (via file / registry access) 21->65 67 Tries to harvest and steal browser information (history, passwords, etc) 21->67 31 conhost.exe 23->31         started        signatures8 process9
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2023-08-10 10:36:30 UTC
File Type:
PE (.Net Exe)
Extracted files:
7
AV detection:
20 of 38 (52.63%)
Threat level:
  5/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
family:agenttesla keylogger spyware stealer trojan
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
AgentTesla
Unpacked files
SH256 hash:
f4cf1e658e47547d3f16f88ab6356eb86d3dff418ff7f63c43fded31881bedc2
MD5 hash:
bf70c318e33e635f86fc9623e2bf355d
SHA1 hash:
f69d15054c8d4fcfb6a81a851dde4261598b9f22
SH256 hash:
504410fd6158a7346f5a2e7b7714203b329d46dab5d129719410d5c325122804
MD5 hash:
74ed681a2d7aed1dae5627d4367474f8
SHA1 hash:
cad2df636d3f0710f69fdb18cbae03a332341dd3
SH256 hash:
fad9112aa80e6aa9b09ce8722079e4d4743f22f2327e753e2b94076f4ff0c2dd
MD5 hash:
8361407e19c47cddca06c7b19719ade1
SHA1 hash:
2393857a6e3f68392399ba107c70401e933428b3
SH256 hash:
b676171dc6dc8e2fd1737a88c2dd52370c1a800cc6ee18e947341395fc76bb17
MD5 hash:
985c7c8f5dff6916d2bcfdd2bb6541ee
SHA1 hash:
1535bbbe5fdbc30e5bdc0daf4242cd43b1728ca8
Malware family:
AgentTesla.v4
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:NET
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 b676171dc6dc8e2fd1737a88c2dd52370c1a800cc6ee18e947341395fc76bb17

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments