MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ba25cf07d5be441cff960d5c7651c94ca5845d1aefd8703c7adbf88af4d949f6. 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: 10


Intelligence 10 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: ba25cf07d5be441cff960d5c7651c94ca5845d1aefd8703c7adbf88af4d949f6
SHA3-384 hash: 6d96e6c0d7af0eacbba0d8e0516256f2d8f3411df072fb96aba29aeebd0882e7a6af921c89533ac1f34ecf70ac69197e
SHA1 hash: b27d613faadf66196167844180a9aa5c792ab21f
MD5 hash: 1cea161304919238f7fd859e85bb79ea
humanhash: indigo-nevada-butter-failed
File name:Updated Statement of account.exe
Download: download sample
Signature NanoCore
Create hunting rule
File size:650'240 bytes
First seen:2020-08-04 07:04:23 UTC
Last seen:2020-08-04 08:20:17 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:tdth5TlXUDW/D8NCXhvVKoe/oVaR5oHPkAN0wDfm4S:3JTNUDW/2ClIoVaHovV01p
Threatray 10'868 similar samples on MalwareBazaar
TLSH FFD4F141FA90FA49E53E0B300293C2C5865EED616A42D77FB69077AFCAB33911E0516F
Reporter abuse_ch
Tags:exe NanoCore


Avatar
abuse_ch
Malspam distributing NanoCore:

HELO: fllogistics.com
Sending IP: 185.222.57.137
From: zakkir < zakkir@fllogistics.com>
Subject: RE: Updated Statement of account
Attachment: Updated Statement of account.rar (contains "Updated Statement of account.exe")

NanoCore RAT C2:
mail.travelsapphire.com:587

Intelligence

File Origin
# of uploads :
2
# of downloads :
91
Origin country :
n/a
Vendor Threat Intelligence
Detection:
AgentTeslaV2
Create hunting rule
Link:
https://www.capesandbox.com/analysis/38253/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.276.18927.10300.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file
Using the Windows Management Instrumentation requests
Reading critical registry keys
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
Stealing user critical data
Enabling autorun
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/408752
Signature
.NET source code contains potential unpacker
Creates an undocumented autostart registry key
Found malware configuration
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 harvest and steal ftp login credentials
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Mail credentials (via file access)
Yara detected AgentTesla
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 256619 Sample: Updated Statement of account.exe Startdate: 04/08/2020 Architecture: WINDOWS Score: 100 43 Found malware configuration 2->43 45 Yara detected AgentTesla 2->45 47 .NET source code contains potential unpacker 2->47 49 4 other signatures 2->49 7 Updated Statement of account.exe 7 2->7         started        process3 file4 35 C:\Users\user\AppData\Local\...\name.exe.lnk, MS 7->35 dropped 37 C:\...\Updated Statement of account.exe.log, ASCII 7->37 dropped 39 C:\Users\user\AppData\Local\Temp\svhost.exe, PE32 7->39 dropped 53 Injects a PE file into a foreign processes 7->53 11 Updated Statement of account.exe 2 7->11         started        15 cmd.exe 1 7->15         started        17 cmd.exe 3 7->17         started        20 cmd.exe 1 7->20         started        signatures5 process6 dnsIp7 41 mail.travelsapphire.com 198.38.82.38, 49741, 587 SERVERCENTRALUS United States 11->41 55 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 11->55 57 Tries to steal Mail credentials (via file access) 11->57 59 Tries to harvest and steal ftp login credentials 11->59 61 Tries to harvest and steal browser information (history, passwords, etc) 11->61 22 reg.exe 1 1 15->22         started        25 conhost.exe 15->25         started        31 C:\Users\user\AppData\Local\Temp\...\name.exe, PE32 17->31 dropped 27 conhost.exe 17->27         started        33 C:\Users\user\...\name.exe:Zone.Identifier, ASCII 20->33 dropped 29 conhost.exe 20->29         started        file8 signatures9 process10 signatures11 51 Creates an undocumented autostart registry key 22->51
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/ba25cf07d5be441cff960d5c7651c94ca5845d1aefd8703c7adbf88af4d949f6/
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Create hunting rule
Status:
Malicious
First seen:
2020-08-04 01:22:40 UTC
AV detection:
22 of 29 (75.86%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=xis46b6vxzcbz74wbvohmuojjssyixi257mhapd23p4iv5gzjh3a._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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NanoCore
+ 10'858 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
keylogger stealer spyware trojan family:agenttesla
Link:
https://tria.ge/reports/200804-3r53ewzl92/
Behaviour
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
NTFS ADS
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Loads dropped DLL
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
AgentTesla Payload
AgentTesla
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Kryptik
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/ba25cf07d5be441cff960d5c7651c94ca5845d1aefd8703c7adbf88af4d949f6

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
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Agenttesla in memory
Reference:internal research
Rule name:CAP_HookExKeylogger
Create hunting rule
Author:Brian C. Bell -- @biebsmalwareguy
Reference:https://github.com/DFIRnotes/rules/blob/master/CAP_HookExKeylogger.yar
Rule name:win_agent_tesla_w1
Create hunting rule
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

rar 06437b1cbe1a92c4da37e42718575907e0a0b4a7b7203468654b8dccd7b5aa4c

NanoCore

Executable exe ba25cf07d5be441cff960d5c7651c94ca5845d1aefd8703c7adbf88af4d949f6

(this sample)

  
Dropped by
MD5 a9ed3ac06b6786ba7475ee9aa3afb427
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/38253/
  
Dropped by
SHA256 06437b1cbe1a92c4da37e42718575907e0a0b4a7b7203468654b8dccd7b5aa4c

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