MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3e444fd0707ff147bf6c4868d8778970343cd901835a73698e669fc39c48e6f3. 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: 11


Intelligence 11 IOCs 1 YARA 9 File information Comments 1

SHA256 hash: 3e444fd0707ff147bf6c4868d8778970343cd901835a73698e669fc39c48e6f3
SHA3-384 hash: fc0579663e247499a2017a527d8b927389fa98dbb6f1fe14723d0791844de4850931b2ed207e612a8f17bc6963a6fc87
SHA1 hash: cbc01d2d2ce69ca79015f9b761f508dcfef4c3b2
MD5 hash: 15f3674b5379a5fa3227a3006356c44d
humanhash: helium-orange-beer-lake
File name:15f3674b5379a5fa3227a3006356c44d.exe
Download: download sample
Signature NanoCore
File size:420'433 bytes
First seen:2021-05-19 18:30:27 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 5c0f23dd4e6e6d877a3f0af4e2e79403 (1 x NanoCore)
ssdeep 12288:YumS8wnYMrsHB8qbZPi/a1mPlTCU7bBMosag:YumS8wnY/BxdPfmP7b6Tag
Threatray 3'292 similar samples on MalwareBazaar
TLSH 2F948C61F29588A1E41671F9A974EE621227BD7895204E0B71BB322D4D723D3DC3BE0F
Reporter abuse_ch
Tags:exe NanoCore RAT


Avatar
abuse_ch
NanoCore C2:
192.169.69.25:9900

Indicators Of Compromise (IOCs)


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

IOCThreatFox Reference
192.169.69.25:9900 https://threatfox.abuse.ch/ioc/48772/

Intelligence


File Origin
# of uploads :
1
# of downloads :
116
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
http://madridbg.com/Fedex,pdf.iso
Verdict:
Malicious activity
Analysis date:
2019-11-28 16:19:02 UTC
Tags:
rat nanocore

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a file in the %AppData% subdirectories
Launching a process
Creating a window
DNS request
Sending a TCP request to an infection source
Enabling autorun by creating a file
Unauthorized injection to a system process
Result
Verdict:
MALICIOUS
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.expl.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Detected Nanocore Rat
Drops VBS files to the startup folder
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Icon mismatch, binary includes an icon from a different legit application in order to fool users
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Sigma detected: Drops script at startup location
Sigma detected: NanoCore
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Uses dynamic DNS services
Writes to foreign memory regions
Yara detected Nanocore RAT
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 417641 Sample: AFa8kUgrni.exe Startdate: 19/05/2021 Architecture: WINDOWS Score: 100 33 abokijob.hopto.org 2->33 51 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->51 53 Multi AV Scanner detection for domain / URL 2->53 55 Found malware configuration 2->55 57 12 other signatures 2->57 8 AFa8kUgrni.exe 10 2->8         started        12 wscript.exe 2->12         started        signatures3 process4 file5 27 C:\Users\user\AppData\...\pzry.exe.exe, PE32 8->27 dropped 29 C:\Users\user\AppData\...\pzry.exe.vbs, data 8->29 dropped 59 Drops VBS files to the startup folder 8->59 61 Writes to foreign memory regions 8->61 63 Maps a DLL or memory area into another process 8->63 14 RegAsm.exe 6 8->14         started        19 RegAsm.exe 8->19         started        21 RegAsm.exe 8->21         started        23 pzry.exe.exe 2 12->23         started        signatures6 process7 dnsIp8 35 aboki0419.duckdns.org 192.169.69.25, 49746, 49749, 49750 WOWUS United States 14->35 37 abokijob.hopto.org 14->37 39 192.168.2.1 unknown unknown 14->39 31 C:\Users\user\AppData\Roaming\...\run.dat, data 14->31 dropped 41 Hides that the sample has been downloaded from the Internet (zone.identifier) 14->41 43 Antivirus detection for dropped file 23->43 45 Machine Learning detection for dropped file 23->45 47 Writes to foreign memory regions 23->47 49 Maps a DLL or memory area into another process 23->49 25 RegAsm.exe 3 23->25         started        file9 signatures10 process11
Threat name:
Win32.Worm.AutoRun
Status:
Malicious
First seen:
2019-11-28 11:19:37 UTC
AV detection:
22 of 28 (78.57%)
Threat level:
  5/5
Result
Malware family:
nanocore
Score:
  10/10
Tags:
family:nanocore evasion keylogger spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Checks whether UAC is enabled
Drops startup file
NanoCore
Malware Config
C2 Extraction:
aboki0419.duckdns.org:9900
abokijob.hopto.org:9900
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:adonunix2
Author:Tim Brown @timb_machine
Description:AD on UNIX
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:pe_imphash
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash
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



Avatar
a̵c̵c̸i̵d̷e̵n̷t̴a̷l̴r̵e̷b̸e̴l̸ commented on 2021-05-19 19:02:29 UTC

============================================================
MBC behaviors list (github.com/accidentalrebel/mbcscan):
============================================================
0) [C0052] File System Micro-objective::Writes File
1) [C0040] Process Micro-objective::Allocate Thread Local Storage
2) [C0041] Process Micro-objective::Set Thread Local Storage Value
3) [C0018] Process Micro-objective::Terminate Process