MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 56a37f303bc905ace197941dcc0519f3880baffe10c6d3ecfc80bbff1aae9059. 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: 56a37f303bc905ace197941dcc0519f3880baffe10c6d3ecfc80bbff1aae9059
SHA3-384 hash: 22789bf5d34ec3b769f503d23439f2bc50badecf406419e6b14ccd8882bd5816b11f67ed25cec2fa0a627b03a58c5bec
SHA1 hash: f0005e9a8fe3835459349a32bf30c07d3aee05d6
MD5 hash: fee33ce8d196278e13c97ed9876f532b
humanhash: triple-tennis-eight-finch
File name:DOC220319-22032019155241Z.exe
Download: download sample
Signature NanoCore
Create hunting rule
File size:592'384 bytes
First seen:2020-08-28 06:32:51 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'650 x AgentTesla, 19'462 x Formbook, 12'203 x SnakeKeylogger)
ssdeep 12288:lP1rD1Bc2z1fLmFAtAWgCuEpMJPzqAcK2oGbQ/:ldlBcSDSCLKJP+Acvo
Threatray 1'094 similar samples on MalwareBazaar
TLSH 20C42335A29E8B04C8E0A3B134FE348253F1963B9575F7A88DC6E085756BB24C729F17
Reporter abuse_ch
Tags:exe NanoCore nVpn RAT


Avatar
abuse_ch
Malspam distributing NanoCore:

HELO: web4.allinhost.de
Sending IP: 178.77.72.166
From: Alex Thompson <alex.thompson@alghandi.com>
Reply-To: alex.thompson.alghandi@dr.com
Subject: Request for quotation
Attachment: DOC220319-22032019155241Z.GZ (contains "DOC220319-22032019155241Z.exe")

NanoCore RAT C2:
69tallboy.ddns.net:2669 (185.165.153.26)

Pointing to 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 :
197
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/52200/
Detection(s):
SecuriteInfo.com.W32.Trojan-7.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Deleting a recently created file
Unauthorized injection to a recently created process
Creating a file
Creating a file in the %AppData% subdirectories
DNS request
Connection attempt to an infection source
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/453289
Signature
.NET source code contains potential unpacker
Detected Nanocore Rat
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: NanoCore
Sigma detected: Scheduled temp file as task from temp location
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses dynamic DNS services
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM_3
Yara detected Nanocore RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 279015 Sample: DOC220319-22032019155241Z.exe Startdate: 28/08/2020 Architecture: WINDOWS Score: 100 47 Malicious sample detected (through community Yara rule) 2->47 49 Multi AV Scanner detection for dropped file 2->49 51 Sigma detected: Scheduled temp file as task from temp location 2->51 53 11 other signatures 2->53 8 DOC220319-22032019155241Z.exe 7 2->8         started        12 DOC220319-22032019155241Z.exe 4 2->12         started        process3 file4 33 C:\Users\user\AppData\Roaming\ygeCVIhBv.exe, PE32 8->33 dropped 35 C:\Users\...\ygeCVIhBv.exe:Zone.Identifier, ASCII 8->35 dropped 37 C:\Users\user\AppData\Local\...\tmpFAC7.tmp, XML 8->37 dropped 39 C:\...\DOC220319-22032019155241Z.exe.log, ASCII 8->39 dropped 55 Injects a PE file into a foreign processes 8->55 14 DOC220319-22032019155241Z.exe 11 8->14         started        19 schtasks.exe 1 8->19         started        21 schtasks.exe 1 12->21         started        23 DOC220319-22032019155241Z.exe 2 12->23         started        signatures5 process6 dnsIp7 43 69tallboy.ddns.net 185.165.153.26, 2669, 49731 DAVID_CRAIGGG Netherlands 14->43 41 C:\Users\user\AppData\Roaming\...\run.dat, Non-ISO 14->41 dropped 45 Hides that the sample has been downloaded from the Internet (zone.identifier) 14->45 25 schtasks.exe 1 14->25         started        27 conhost.exe 19->27         started        29 conhost.exe 21->29         started        file8 signatures9 process10 process11 31 conhost.exe 25->31         started       
Detection:
nanocore
Create hunting rule
Link:
https://mwdb.cert.pl/sample/56a37f303bc905ace197941dcc0519f3880baffe10c6d3ecfc80bbff1aae9059/
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Create hunting rule
Status:
Malicious
First seen:
2020-08-28 06:34:09 UTC
AV detection:
25 of 29 (86.21%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=k2rx6mb3zec2zymxsqo4ybiz6oeaxl76cddnh3h4qc576gvosbmq._file
Verdict:
malicious
Label(s):
nanocorerat
Create hunting rule
Similar samples:
036c0fbb1ffb23e9bfd4b4834a396d79ec319078865adf3ef75418450cf9fd18
NanoCore
234b2c300af5e4ac2001332e07c2e54bd48dac174cf8b5d0c486a3cc6076043c
NanoCore
4ab00875960cf2aace6c95e245327e7c27ba9cde509afd927ace70756a40c0c8
NanoCore
50cbc0b693b4204caf169db073592dc53b8b1c21b9e71a640ee79692918cdcef
NanoCore
5eb03557bea836689fd85bc82912388cce5771e2f85696c82357462534c1d3c6
NanoCore
a2938e6462b02115d0579cb8a4294626eb792a781b68175844a5fb26ae6de0b6
NanoCore
bd6650220b7fa539c937c4008df96914a86b1cbaa0098588a9b4ec0175f0c679
NanoCore
c581c0cb91f2bc8e043a9132e704adb5c36147bb4d1a60676bdeb0c8d3686beb
NanoCore
dfe001ed1950d612ea59a75c6367629ff0e031853e9f7a12b7f0381a4f20660f
NanoCore
fafa7913ac9ff3330896a63b8db3d8e8f88e35a10de8a96dafa570ed29b537d6
NanoCore
+ 1'084 additional samples on MalwareBazaar
Result
Malware family:
nanocore
Create hunting rule
Score:
  10/10
Tags:
evasion trojan keylogger stealer spyware family:nanocore
Link:
https://tria.ge/reports/200828-qmjtfgtz3a/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Creates scheduled task(s)
Modifies data under HKEY_USERS
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Drops file in Windows directory
Suspicious use of SetThreadContext
Checks whether UAC is enabled
NanoCore
Malware Config
C2 Extraction:
69tallboy.ddns.net:2669
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.75
Link:
https://yomi.yoroi.company/submissions/56a37f303bc905ace197941dcc0519f3880baffe10c6d3ecfc80bbff1aae9059

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.

c02d8aa2ee81249bf664d1fb38d6426d

NanoCore

Executable exe 56a37f303bc905ace197941dcc0519f3880baffe10c6d3ecfc80bbff1aae9059

(this sample)

  
Dropped by
MD5 c02d8aa2ee81249bf664d1fb38d6426d
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/52200/

Comments