MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4d13350ebf3d38475a0a4a8c223fe6c06e00af3585eb499f60e29639b3944d3f. 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: 9


Intelligence 9 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4d13350ebf3d38475a0a4a8c223fe6c06e00af3585eb499f60e29639b3944d3f
SHA3-384 hash: 819bb5b6161f266a712ce4658351172596218307062fc53155427d600943863f060ec1d42d2fca3a0b0103f106d20b46
SHA1 hash: 6d79e373a315ac4d0486514cce073aac0ea660ce
MD5 hash: 4bff01a5ac23f4170f59fe64ac39050d
humanhash: neptune-pasta-four-leopard
File name:PURCHASE ORDER TOUSE IMPORT& EXPORT CO. ,LTD.ZIP FILE.exe
Download: download sample
Signature NanoCore
Create hunting rule
File size:1'152'942 bytes
First seen:2020-08-16 18:55:35 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash fcf1390e9ce472c7270447fc5c61a0c1 (863 x DCRat, 118 x NanoCore, 94 x njrat)
ssdeep 24576:JAOcZypnCosN9ouVbiYkWC9DH6+iWbqu0Gxg539FQZMaBQiRtZ:jKooVbc/3Txw96ZMARz
Threatray 1'263 similar samples on MalwareBazaar
TLSH 57351213FBD688B2D43219325D267B116D7EBD205E38DA6EB3E00D1DEA711D06225BF2
Reporter abuse_ch
Tags:exe NanoCore nVpn RAT


Avatar
abuse_ch
Malspam distributing NanoCore:

HELO: rh1.idcolo.com
Sending IP: 110.232.73.75
From: narendra@csiindonesia.com
Subject: Re: New US order
Attachment: PURCHASE ORDER TOUSE IMPORT EXPORT CO. ,LTD.ZIP FILE.z (contains "PURCHASE ORDER TOUSE IMPORT& EXPORT CO. ,LTD.ZIP FILE.exe")

NanoCore RAT C2s:
johnsuccess18.ddns.net:52943 (41.217.62.17)
185.165.153.114:52943

Hosted on nVpn:

% Information related to '185.165.153.0 - 185.165.153.255'

% Abuse contact for '185.165.153.0 - 185.165.153.255' is 'abuse@privacyfirst.sh'

inetnum: 185.165.153.0 - 185.165.153.255
remarks: This prefix is assigned to The PRIVACYFIRST Project, which
remarks: operates infrastructure jointly used by various VPN service
remarks: providers. We have a very strong focus on privacy and freedom.
remarks: In case of abuse, we encourage all international law enforcement
remarks: agencies to get in touch with our abuse contact. Due to the fact
remarks: that we keep no logs of user activities and only share data when
remarks: it is legally required under our jurisdiction, it is very unlikely
remarks: for a demand of user information to be successful. Still, that
remarks: should not deter you from reaching out.
netname: PRIVACYFIRST-EU2
country: EU
admin-c: TPP15-RIPE
tech-c: TPP15-RIPE
org: ORG-TPP6-RIPE
status: ASSIGNED PA
mnt-by: PRIVACYFIRST-MNT
created: 2019-10-18T12:14:26Z
last-modified: 2020-07-28T20:37:37Z
source: RIPE

Intelligence

File Origin
# of uploads :
1
# of downloads :
117
Origin country :
n/a
Vendor Threat Intelligence
Detection:
NanoCore
Create hunting rule
Link:
https://www.capesandbox.com/analysis/46572/
Detection(s):
Win.Dropper.NetWire-9102409-0
Create hunting rule

SecuriteInfo.com.Gen.Variant.Johnnie.221809.751.14920.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Searching for the window
Creating a file
Enabling the 'hidden' option for recently created files
Sending a UDP request
Creating a process from a recently created file
Launching a process
Adding an access-denied ACE
Creating a file in the %AppData% subdirectories
Creating a file in the Program Files subdirectories
Creating a file in the %temp% directory
Deleting a recently created file
DNS request
Blocking a possibility to launch for the Windows Task Manager (taskmgr)
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Connection attempt to an infection source
Unauthorized injection to a system process
Enabling autorun by creating a file
Result
Threat name:
Nanocore
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/432372
Signature
.NET source code contains potential unpacker
Allocates memory in foreign processes
Connects to many ports of the same IP (likely port scanning)
Detected Nanocore Rat
Disables the Windows task manager (taskmgr)
Drops PE files with a suspicious file extension
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Initial sample is a PE file and has a suspicious name
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)
Protects its processes via BreakOnTermination flag
Sigma detected: NanoCore
Sigma detected: Scheduled temp file as task from temp location
Uses dynamic DNS services
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected AntiVM autoit script
Yara detected Nanocore RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 268147 Sample: PURCHASE ORDER TOUSE IMPORT... Startdate: 16/08/2020 Architecture: WINDOWS Score: 100 56 Found malware configuration 2->56 58 Malicious sample detected (through community Yara rule) 2->58 60 Sigma detected: Scheduled temp file as task from temp location 2->60 62 11 other signatures 2->62 9 PURCHASE ORDER TOUSE IMPORT& EXPORT CO. ,LTD.ZIP FILE.exe 27 2->9         started        12 RegSvcs.exe 2->12         started        14 dhcpmon.exe 2->14         started        16 3 other processes 2->16 process3 file4 46 C:\Users\user\71443006\dncvtsq.pif, PE32 9->46 dropped 18 dncvtsq.pif 2 2 9->18         started        21 conhost.exe 12->21         started        23 conhost.exe 14->23         started        25 conhost.exe 16->25         started        process5 signatures6 64 Machine Learning detection for dropped file 18->64 66 Writes to foreign memory regions 18->66 68 Allocates memory in foreign processes 18->68 70 2 other signatures 18->70 27 RegSvcs.exe 18->27         started        32 mshta.exe 18->32         started        34 mshta.exe 18->34         started        36 5 other processes 18->36 process7 dnsIp8 54 johnsuccess18.ddns.net 41.217.62.17, 52943 SpectranetNG Nigeria 27->54 48 C:\Users\user\AppData\Roaming\...\run.dat, Non-ISO 27->48 dropped 50 C:\Users\user\AppData\Local\Temp\tmpBAB.tmp, XML 27->50 dropped 52 C:\Program Files (x86)\...\dhcpmon.exe, PE32 27->52 dropped 72 Protects its processes via BreakOnTermination flag 27->72 74 Hides that the sample has been downloaded from the Internet (zone.identifier) 27->74 38 schtasks.exe 27->38         started        40 schtasks.exe 27->40         started        file9 signatures10 process11 process12 42 conhost.exe 38->42         started        44 conhost.exe 40->44         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4d13350ebf3d38475a0a4a8c223fe6c06e00af3585eb499f60e29639b3944d3f/
Threat name:
Win32.Backdoor.NanoCore
Create hunting rule
Status:
Malicious
First seen:
2020-08-16 18:05:19 UTC
AV detection:
22 of 29 (75.86%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=jujtkdv7hu4eowqkjkgcep7gybxablzvqxvuth3a4kldtm4uju7q._file
Verdict:
malicious
Label(s):
nanocorerat
Create hunting rule
Similar samples:
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NanoCore
62a7f441ba21aaa568fe700029fa32d6dd7eeb2ed0a7f7259a680f2aae65ee31
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7fce676b063449eecd1236727598513639a7fd166d6e2f86dce138b97636d572
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90bb157f9c5241f567eb56be38e3ba9f51a0ec5a8da3c77fdb1bed1f2095c39b
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9987d8c52079b322db5a969a6c8aca4858262e6bf895d644d2f8c87bee0ec649
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a30dd99039152a76aacb5607d79b400098d9cd24350c0121fe4f7811177c0dbc
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a943fc4408c2f59f2df0afabf3836e5adae92a8f4a4b1da0270e313d8ea78445
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ab62f6c3ea852d99ce529f9c61012ab324bb007f79cc6cba9c8f6c1aaba4c561
NanoCore
cbf010e4d58f12ac1a0ce0ef5e29636c13a3a6ee5b052aae7cad7e9a95448276
NanoCore
d6c73d397215d259bfb6168e9c0a6c29bb8e684509877e0ec62aba0c817a25fa
NanoCore
+ 1'253 additional samples on MalwareBazaar
Result
Malware family:
nanocore
Create hunting rule
Score:
  10/10
Tags:
evasion persistence keylogger trojan stealer spyware family:nanocore
Link:
https://tria.ge/reports/200816-qqkdxh34a6/
Behaviour
Creates scheduled task(s)
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
Loads dropped DLL
Disables Task Manager via registry modification
Executes dropped EXE
NanoCore
Malware Config
C2 Extraction:
johnsuccess18.ddns.net:52943
185.165.153.114:52943
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/4d13350ebf3d38475a0a4a8c223fe6c06e00af3585eb499f60e29639b3944d3f

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_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 8b5143b685f294c156d2d0b8d3e64eb4874f82dc0c8a40ab5bd8d5dc02f61fe8

NanoCore

Executable exe 4d13350ebf3d38475a0a4a8c223fe6c06e00af3585eb499f60e29639b3944d3f

(this sample)

  
Dropped by
MD5 2628b10f9c28aa7d04311a2b55f151c1
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/46572/
  
Dropped by
SHA256 8b5143b685f294c156d2d0b8d3e64eb4874f82dc0c8a40ab5bd8d5dc02f61fe8

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