MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 17b4666d69c4c82a89ee9208dfe8ebb84e3f7acdd81dfb2320ed00efcce33134. 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 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 17b4666d69c4c82a89ee9208dfe8ebb84e3f7acdd81dfb2320ed00efcce33134
SHA3-384 hash: ad5e6d57d42a00710581ae76109d9574dc4af52d27c5c42c07e22bd11443e02f8de1123b4172a6e8f880938c8e8dd1b5
SHA1 hash: b127eb700d37a8b027fe67b78b0afa35975ffff9
MD5 hash: c3da28de257b1b534110d8697563a743
humanhash: uniform-network-tennessee-arizona
File name:PAYMENT COPY RECEIPT.exe
Download: download sample
Signature NanoCore
Create hunting rule
File size:444'416 bytes
First seen:2021-01-18 07:49:30 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 3fa489abaee814a61ce0966e1954db55 (12 x Loki, 7 x RemcosRAT, 3 x SnakeKeylogger)
ssdeep 12288:u4b7TQEvxo8zWyKBlvHwoegHh+0KSMRkbIp:uETE8zW/1egB+0KB9p
Threatray 1'738 similar samples on MalwareBazaar
TLSH 6A94E02435C1C032C11326344A74CBB28EBB78726A21A59F7BDA4DB95F716E2D73934E
Reporter abuse_ch
Tags:exe NanoCore RAT SCB


Avatar
abuse_ch
Malspam distributing NanoCore:

HELO: server.freemanbee.tk
Sending IP: 37.77.105.206
From: STANDARD CHARTERED BANK <sav503@electroplanet.ma>
Subject: STANDARD CHARTERED BANK FOUND TRANSFER 15/1/2021
Attachment: PAYMENT COPY RECEIPT.PDF.z (contains "PAYMENT COPY RECEIPT.exe")

Intelligence

File Origin
# of uploads :
1
# of downloads :
151
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
PAYMENT COPY RECEIPT.exe
Verdict:
Malicious activity
Analysis date:
2021-01-18 07:50:17 UTC
Tags:
rat nanocore
Link:
https://app.any.run/tasks/c1b3c44b-68a8-4a73-b4b3-210d7f3e550c

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
NanoCore
Create hunting rule
Link:
https://www.capesandbox.com/analysis/112420/
Detection(s):
PUA.Win.Downloader.Firseria-6804617-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Unauthorized injection to a recently created process
Sending a UDP request
Creating a window
Creating a file in the %AppData% subdirectories
Creating a file in the Program Files subdirectories
Creating a file in the %temp% directory
Launching a process
Deleting a recently created file
DNS request
Sending a custom TCP request
Using the Windows Management Instrumentation requests
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Enabling autorun by creating a file
Result
Threat name:
Nanocore
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/583407
Signature
.NET source code contains potential unpacker
Detected Nanocore Rat
Detected unpacking (creates a PE file in dynamic memory)
Executable has a suspicious name (potential lure to open the executable)
Hides that the sample has been downloaded from the Internet (zone.identifier)
Initial sample is a PE file and has a suspicious name
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
Sigma detected: NanoCore
Sigma detected: Scheduled temp file as task from temp location
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Uses dynamic DNS services
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected Nanocore RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 340738 Sample: PAYMENT COPY  RECEIPT.exe Startdate: 18/01/2021 Architecture: WINDOWS Score: 100 59 chinomso.duckdns.org 2->59 65 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->65 67 Multi AV Scanner detection for domain / URL 2->67 69 Malicious sample detected (through community Yara rule) 2->69 71 12 other signatures 2->71 9 PAYMENT COPY  RECEIPT.exe 2->9         started        12 PAYMENT COPY  RECEIPT.exe 2->12         started        14 dhcpmon.exe 2->14         started        16 dhcpmon.exe 2->16         started        signatures3 process4 signatures5 77 Maps a DLL or memory area into another process 9->77 18 PAYMENT COPY  RECEIPT.exe 1 16 9->18         started        23 PAYMENT COPY  RECEIPT.exe 12->23         started        25 PAYMENT COPY  RECEIPT.exe 12->25         started        27 dhcpmon.exe 3 14->27         started        29 dhcpmon.exe 2 16->29         started        process6 dnsIp7 61 chinomso.duckdns.org 185.150.24.55, 49708, 49709, 49716 SKYLINKNL Netherlands 18->61 63 192.168.2.1 unknown unknown 18->63 47 C:\Program Files (x86)\...\dhcpmon.exe, PE32 18->47 dropped 49 C:\Users\user\AppData\Roaming\...\run.dat, ISO-8859 18->49 dropped 51 C:\Users\user\AppData\Local\...\tmpCB8F.tmp, XML 18->51 dropped 53 C:\...\dhcpmon.exe:Zone.Identifier, ASCII 18->53 dropped 75 Hides that the sample has been downloaded from the Internet (zone.identifier) 18->75 31 schtasks.exe 1 18->31         started        33 schtasks.exe 1 18->33         started        35 PAYMENT COPY  RECEIPT.exe 23->35         started        38 PAYMENT COPY  RECEIPT.exe 23->38         started        55 C:\Users\user\AppData\...\dhcpmon.exe.log, ASCII 27->55 dropped file8 signatures9 process10 signatures11 40 conhost.exe 31->40         started        42 conhost.exe 33->42         started        73 Maps a DLL or memory area into another process 35->73 44 PAYMENT COPY  RECEIPT.exe 3 35->44         started        process12 file13 57 C:\Users\...\PAYMENT COPY  RECEIPT.exe.log, ASCII 44->57 dropped
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/17b4666d69c4c82a89ee9208dfe8ebb84e3f7acdd81dfb2320ed00efcce33134/
Threat name:
Win32.Trojan.Generic
Create hunting rule
Status:
Suspicious
First seen:
2021-01-18 07:50:15 UTC
AV detection:
19 of 46 (41.30%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=c62gm3ljytecvcposien72hlxbhd66wn3ao7wiza5uao7thdge2a._file
Verdict:
malicious
Label(s):
nanocorerat
Create hunting rule
Similar samples:
08639e98cf6c1379bb93b438681073d604ccbe57401153404885b4a090becb25
NanoCore
5b474ca6fc8158bd6f14d53bca8962f25db3392dfe324f49ddf376610bd785e4
NanoCore
984c95ea87e7b059a566bc304bd8bd9cdfc041c3fa03e66c70e16765c22676b2
NanoCore
c54deb9627b2dbaa9a3dac0298baf8417d7379c969ad76cee8450afe5d317dc1
NanoCore
d64a4482514be4bb53344b4712d850bb5ad28bd589a5cf3f4d2d966d2ea9ef65
NanoCore
ddaaa650d42caaed5ddd7c307b986cdccfc25bcb84c7a4f29f9fddd26add4135
NanoCore
e4fc20492ed4f4750766382f6578d84f38bf680646eb6b5193c5733925941f67
NanoCore
ea6b74e2f0364ce1b058b8f5d7c078c3f47cb61a546976a5d56e0378c029892c
NanoCore
f1a3b91427ef42327cd507ceee5f3c6717e28d8e27ba6dd50cace4126de61445
NanoCore
fe437d43f7133fadd1f6737840d626ba30d61eb8e983072b16175dccd7f011c1
NanoCore
+ 1'728 additional samples on MalwareBazaar
Result
Malware family:
nanocore
Create hunting rule
Score:
  10/10
Tags:
family:nanocore evasion keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/210118-tyv6j9je82/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
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:
chinomso.duckdns.org:7688
Unpacked files
SH256 hash:
17b4666d69c4c82a89ee9208dfe8ebb84e3f7acdd81dfb2320ed00efcce33134
MD5 hash:
c3da28de257b1b534110d8697563a743
SHA1 hash:
b127eb700d37a8b027fe67b78b0afa35975ffff9
Link:
https://www.unpac.me/results/c0e473b7-9dad-43ff-b734-3f0af9662e6c/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Nanocore
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/17b4666d69c4c82a89ee9208dfe8ebb84e3f7acdd81dfb2320ed00efcce33134

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
Create hunting rule
Author:abuse.ch
Rule name:Nanocore
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Nanocore in memory
Reference:internal research
Rule name:nanocore_rat
Create hunting rule
Author:jeFF0Falltrades
Rule name:Nanocore_RAT_Feb18_1
Create hunting rule
Author:Florian Roth
Description:Detects Nanocore RAT
Reference:Internal Research - T2T
Rule name:Nanocore_RAT_Gen_2
Create hunting rule
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
Create hunting rule
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.

Malspam

NanoCore

z 72b4049436a4d944279010e2ec53ebd71d41abaf12d0580f5ff9d04f74bef743

NanoCore

Executable exe 17b4666d69c4c82a89ee9208dfe8ebb84e3f7acdd81dfb2320ed00efcce33134

(this sample)

  
Dropped by
MD5 578a0efdc64bf65fc5751c847eeaf53e
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/112420/
  
Dropped by
SHA256 72b4049436a4d944279010e2ec53ebd71d41abaf12d0580f5ff9d04f74bef743

Comments