MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 0e5145baf6696e39a17a338aea37c1c8c9ecaec92cbb5482867bcfd3d1b204d8. 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



NanoCore


Vendor detections: 9


Intelligence 9 IOCs YARA 3 File information Comments

SHA256 hash: 0e5145baf6696e39a17a338aea37c1c8c9ecaec92cbb5482867bcfd3d1b204d8
SHA3-384 hash: 4fe6fb659a45012da63184e0baffa63fa48bdec8692203612548dde2172ab3acf6598e76cda720f6cf8e06a94e715944
SHA1 hash: 92797f47573bb098e769986500db1f9295e53bd7
MD5 hash: eeb367b4638dee836b85775432cebefe
humanhash: item-queen-alaska-hot
File name:vbc.exe
Download: download sample
Signature NanoCore
File size:616'448 bytes
First seen:2020-08-14 10:39:04 UTC
Last seen:2020-08-14 13:39:11 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:+iexWQIuAaoIqm5aMLFDd1zjKR3+HAdb4DD04M9:sDL51bzjKh+HA0/u
Threatray 10'582 similar samples on MalwareBazaar
TLSH 0DD4D0919282F097CB681F37E186FBFA47A43775BD52D22270683D9DAB3CFD94825102
Reporter abuse_ch
Tags:AgentTesla exe NanoCore


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: yagacotton.com
Sending IP: 95.211.253.212
From: info@yagacotton.com
Subject: ARRIVAL NOTICE & INVOICE ETA 17th AUG 2020
Attachment: ETA 17th.xlsx

AgentTesla payload URL:
http://newrainfallfloodinghighongloballythsitim.duckdns.org/bug/vbc.exe

Intelligence


File Origin
# of uploads :
3
# of downloads :
138
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Unauthorized injection to a recently created process
Creating a window
Running batch commands
Creating a process with a hidden window
Launching a process
Sending a UDP request
Creating a file
Using the Windows Management Instrumentation requests
Reading critical registry keys
Stealing user critical data
Enabling autorun
Result
Threat name:
AgentTesla
Detection:
malicious
Classification:
troj.spyw.evad
Score:
80 / 100
Signature
Creates an undocumented autostart registry key
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file access)
Yara detected AgentTesla
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 267212 Sample: vbc.exe Startdate: 16/08/2020 Architecture: WINDOWS Score: 80 40 Yara detected AgentTesla 2->40 42 Machine Learning detection for sample 2->42 44 Machine Learning detection for dropped file 2->44 7 vbc.exe 7 2->7         started        process3 file4 34 C:\Users\user\AppData\Local\...\name.exe.lnk, MS 7->34 dropped 36 C:\Users\user\AppData\Local\...\vbc.exe.log, ASCII 7->36 dropped 38 C:\Users\user\AppData\Local\Temp\svhost.exe, PE32 7->38 dropped 48 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 7->48 50 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 7->50 52 Injects a PE file into a foreign processes 7->52 11 vbc.exe 2 7->11         started        14 cmd.exe 1 7->14         started        16 cmd.exe 3 7->16         started        19 cmd.exe 1 7->19         started        signatures5 process6 file7 54 Tries to steal Mail credentials (via file access) 11->54 56 Tries to harvest and steal browser information (history, passwords, etc) 11->56 21 reg.exe 1 1 14->21         started        24 conhost.exe 14->24         started        30 C:\Users\user\AppData\Local\Temp\...\name.exe, PE32 16->30 dropped 26 conhost.exe 16->26         started        32 C:\Users\user\...\name.exe:Zone.Identifier, ASCII 19->32 dropped 28 conhost.exe 19->28         started        signatures8 process9 signatures10 46 Creates an undocumented autostart registry key 21->46
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Status:
Malicious
First seen:
2020-08-14 10:41:04 UTC
AV detection:
20 of 26 (76.92%)
Threat level:
  5/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
keylogger stealer spyware trojan family:agenttesla
Behaviour
NTFS ADS
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Loads dropped DLL
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Uses the VBS compiler for execution
AgentTesla Payload
AgentTesla
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:Agenttesla_type2
Author:JPCERT/CC Incident Response Group
Description:detect Agenttesla in memory
Reference:internal research
Rule name:CAP_HookExKeylogger
Author:Brian C. Bell -- @biebsmalwareguy
Reference:https://github.com/DFIRnotes/rules/blob/master/CAP_HookExKeylogger.yar
Rule name:win_agent_tesla_w1
Author:govcert_ch
Description:Detect Agent Tesla based on common .NET code sequences

File information


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

Malspam

NanoCore

Executable exe 0e5145baf6696e39a17a338aea37c1c8c9ecaec92cbb5482867bcfd3d1b204d8

(this sample)

Comments