MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c20fca96d4e870403e4e1f58766271241fb60e0c8e81b1d778d1366c53d69162. 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 1 YARA 6 File information Comments

SHA256 hash: c20fca96d4e870403e4e1f58766271241fb60e0c8e81b1d778d1366c53d69162
SHA3-384 hash: b8d9d48b5c32a402296261d911e9ba6f4f2bf93aaed9fd615d8a604bed9a8cef9d18dc559a4b335469e0a64d4ec096a8
SHA1 hash: 08bce4013fe7711de445f83edca618777848e880
MD5 hash: 42e42d01e5ae2027b90ea4e184b93021
humanhash: nitrogen-lamp-seven-maryland
File name:ab95b182bab0a6f3e6ba230a6818958f.exe
Download: download sample
Signature NanoCore
File size:994'816 bytes
First seen:2021-03-26 13:05:27 UTC
Last seen:2021-03-26 14:35:32 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 12288:GL/WfGE+Gca6jCrvRCHMYWgpUxj5bQdekkYcpefJ5Z1VL:SLE+GcdjCrvoMvD5bYekk5kl
Threatray 2 similar samples on MalwareBazaar
TLSH 7C25B28620ECD2D2E429ADBCC81BD3F33396DDAB8741974731ACF85A656379AD11340B
Reporter abuse_ch
Tags:exe NanoCore RAT


Avatar
abuse_ch
NanoCore C2:
149.56.207.24:7700

Indicators Of Compromise (IOCs)


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

IOCThreatFox Reference
149.56.207.24:7700 https://threatfox.abuse.ch/ioc/5472/

Intelligence


File Origin
# of uploads :
2
# of downloads :
160
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
ab95b182bab0a6f3e6ba230a6818958f.exe
Verdict:
Malicious activity
Analysis date:
2021-03-26 13:07:46 UTC
Tags:
rat nanocore trojan

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
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 method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
C2 URLs / IPs found in malware configuration
Detected Nanocore Rat
Found malware configuration
Injects a PE file into a foreign processes
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: NanoCore
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses dynamic DNS services
Yara detected AntiVM3
Yara detected Nanocore RAT
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2021-03-26 08:19:40 UTC
AV detection:
20 of 29 (68.97%)
Threat level:
  5/5
Result
Malware family:
nanocore
Score:
  10/10
Tags:
family:nanocore evasion keylogger persistence spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Drops file in Program Files directory
Suspicious use of SetThreadContext
Adds Run key to start application
Checks whether UAC is enabled
NanoCore
Malware Config
C2 Extraction:
reborn0147.duckdns.org:7700
Unpacked files
SH256 hash:
c22b9993fd6abea236edcc1bf476bcd4a09015b4af09eedf660a43bf3d29a16f
MD5 hash:
1d1234ba19c430923b22f531bb19b369
SHA1 hash:
9868c1e97a3be16100a61b5ee1f7d2838b4782a8
SH256 hash:
c20fca96d4e870403e4e1f58766271241fb60e0c8e81b1d778d1366c53d69162
MD5 hash:
42e42d01e5ae2027b90ea4e184b93021
SHA1 hash:
08bce4013fe7711de445f83edca618777848e880
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