MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 0b39f5e8244f6d24dbf99914e31907f8e560c6612544a692ec97480c5c9fe371. 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 1 YARA 6 File information Comments

SHA256 hash: 0b39f5e8244f6d24dbf99914e31907f8e560c6612544a692ec97480c5c9fe371
SHA3-384 hash: e6b854caed1e5cf20286aa66afff2f407934765ac82d1c6a9fb9796db97d958e2ac8f3f2badcb9ef85383d1621698f67
SHA1 hash: 85974547f519babcdd3f8d5a68ba18930f09d46d
MD5 hash: 5c59c6fb72b449bd3e52b628c7c46002
humanhash: august-oxygen-lemon-jupiter
File name:TT COPY pdf.exe
Download: download sample
Signature NanoCore
File size:906'752 bytes
First seen:2021-05-03 13:20:50 UTC
Last seen:2021-06-02 18:48:32 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'653 x AgentTesla, 19'464 x Formbook, 12'205 x SnakeKeylogger)
ssdeep 24576:Dg1zTaZViWg3XO7OJYidZ7x0oTSZikoIErs:DS/aZVHoXO72h0odgErs
Threatray 1'825 similar samples on MalwareBazaar
TLSH 2915F16623985B81E93DAB7B0471515013F6AC03FB32DA0D3CE874E769B37980666F93
Reporter abuse_ch
Tags:exe NanoCore RAT


Avatar
abuse_ch
NanoCore C2:
23.105.131.171:4040

Indicators Of Compromise (IOCs)


Below is a list of indicators of compromise (IOCs) associated with this malware samples.

IOCThreatFox Reference
23.105.131.171:4040 https://threatfox.abuse.ch/ioc/28090/

Intelligence


File Origin
# of uploads :
3
# of downloads :
130
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Result
Verdict:
UNKNOWN
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:
Nanocore
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
C2 URLs / IPs found in malware configuration
Detected Nanocore Rat
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
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
Sigma detected: BlueMashroom DLL Load
Sigma detected: Exchange Exploitation Activity
Sigma detected: Mustang Panda Dropper
Sigma detected: NanoCore
Sigma detected: NotPetya Ransomware Activity
Sigma detected: QBot Process Creation
Sigma detected: Raccine Uninstall
Sigma detected: Scheduled temp file as task from temp location
Sigma detected: Suspicious Scheduled Task Creation Involving Temp Folder
Sigma detected: Windows 10 Scheduled Task SandboxEscaper 0-day
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected Nanocore RAT
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Trojan.Agentesla
Status:
Malicious
First seen:
2021-05-03 13:21:07 UTC
File Type:
PE (.Net Exe)
Extracted files:
28
AV detection:
23 of 47 (48.94%)
Threat level:
  5/5
Result
Malware family:
nanocore
Score:
  10/10
Tags:
family:nanocore evasion keylogger spyware stealer trojan
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks whether UAC is enabled
Uses the VBS compiler for execution
NanoCore
Malware Config
C2 Extraction:
23.105.131.171:4040
Unpacked files
SH256 hash:
bdf79e57b5574f9bafb56f6d0592f5ee429df7eb0ad536fbdb4f2956aae36f87
MD5 hash:
826b29e2a141b055a5491c9d7dc6eea7
SHA1 hash:
af4201362b8603bf7e4b6e2ead1cfb610dd7c0a9
SH256 hash:
0b39f5e8244f6d24dbf99914e31907f8e560c6612544a692ec97480c5c9fe371
MD5 hash:
5c59c6fb72b449bd3e52b628c7c46002
SHA1 hash:
85974547f519babcdd3f8d5a68ba18930f09d46d
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:Nanocore
Author:JPCERT/CC Incident Response Group
Description:detect Nanocore in memory
Reference:internal research
Rule name:nanocore_rat
Author:jeFF0Falltrades
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_nanocore_w0
Author: Kevin Breen <kevin@techanarchy.net>

File information


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

Comments