MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 244e2f212245708bd757b50107c8d221e842a683c258f16b744be653fde53c73. 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: 8


Intelligence 8 IOCs YARA 12 File information Comments

SHA256 hash: 244e2f212245708bd757b50107c8d221e842a683c258f16b744be653fde53c73
SHA3-384 hash: f56beed3af109c20ae33e99a4f39d4ab0561325cba8cd75fd6ea2a96044c82e005c49d8d183611d4fb946471d95b8453
SHA1 hash: 220e7a1680a4e0773430a7691448b556ebad437a
MD5 hash: 5257be13506bef5fadcc0794131afc65
humanhash: wisconsin-arizona-mobile-texas
File name:Transaction_Details.exe
Download: download sample
Signature NanoCore
File size:446'976 bytes
First seen:2020-07-09 18:34:49 UTC
Last seen:Never
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:C0U+Hg8Tk3nk0jskko0kkTmZj7U+Hg8Tk3nk0jskko0kkTmZje4pqAwp6FGGPyQ8:1UB57UB5eOqAwp6BP8b
Threatray 2'172 similar samples on MalwareBazaar
TLSH BF949CFE32585346C419B875856ACA3543313E17A840F246AACCFF4B34F3FEB452699A
Reporter abuse_ch
Tags:exe NanoCore


Avatar
abuse_ch
Malspam distributing NanoCore:

HELO: slot0.accountalert.pw
Sending IP: 104.168.203.189
From: Paul Jones <postmaster@accountalert.pw>
Subject: PAYMNET SENT.
Attachment: Transaction_Details.img (contains "Transaction_Details.exe")

Payload URL:
http://envoyemlak.com/msaudio.exe

Intelligence


File Origin
# of uploads :
1
# of downloads :
114
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Deleting a recently created file
Launching cmd.exe command interpreter
Using the Windows Management Instrumentation requests
Sending a custom TCP request
Connection attempt
Forced shutdown of a system process
Enabling autorun with Startup directory
Unauthorized injection to a system process
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2020-07-09 17:08:22 UTC
AV detection:
20 of 28 (71.43%)
Threat level:
  5/5
Result
Malware family:
nanocore
Score:
  10/10
Tags:
persistence evasion trojan keylogger stealer spyware family:nanocore
Behaviour
Suspicious use of WriteProcessMemory
Suspicious behavior: GetForegroundWindowSpam
Creates scheduled task(s)
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Suspicious use of SetWindowsHookEx
Drops file in Program Files directory
Suspicious use of SetThreadContext
Modifies WinLogon
Adds Run entry to start application
Checks whether UAC is enabled
Loads dropped DLL
Executes dropped EXE
NanoCore
Malware Config
C2 Extraction:
45.77.147.196:24980
ufok.duckdns.org:24980
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:ach_NanoCore
Author:abuse.ch
Rule name:Cobalt_functions
Author:@j0sm1
Description:Detect functions coded with ROR edi,D; Detect CobaltStrike used by differents groups APT
Rule name:Codoso_Gh0st_1
Author:Florian Roth
Description:Detects Codoso APT Gh0st Malware
Reference:https://www.proofpoint.com/us/exploring-bergard-old-malware-new-tricks
Rule name:Codoso_Gh0st_2
Author:Florian Roth
Description:Detects Codoso APT Gh0st Malware
Reference:https://www.proofpoint.com/us/exploring-bergard-old-malware-new-tricks
Rule name:MAL_Envrial_Jan18_1
Author:Florian Roth
Description:Detects Encrial credential stealer malware
Reference:https://twitter.com/malwrhunterteam/status/953313514629853184
Rule name:Nanocore
Author:JPCERT/CC Incident Response Group
Description:detect Nanocore in memory
Reference:internal research
Rule name:Nanocore_RAT_Feb18_1
Author:Florian Roth
Description:Detects Nanocore RAT
Reference:Internal Research - T2T
Rule name:Nanocore_RAT_Gen_2
Author:Florian Roth
Description:Detetcs the Nanocore RAT
Reference:https://www.sentinelone.com/blogs/teaching-an-old-rat-new-tricks/
Rule name:win_ave_maria_auto
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:autogenerated rule brought to you by yara-signator
Rule name:win_malumpos_auto
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:autogenerated rule brought to you by yara-signator
Rule name:win_nanocore_w0
Author: Kevin Breen <kevin@techanarchy.net>
Rule name:with_sqlite
Author:Julian J. Gonzalez <info@seguridadparatodos.es>
Description:Rule to detect the presence of SQLite data in raw image
Reference:http://www.st2labs.com

File information


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

Malspam

NanoCore

Executable exe 244e2f212245708bd757b50107c8d221e842a683c258f16b744be653fde53c73

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments