MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3f7658a27f67bee2e61e5232cc9219ad6d0b02725300bcc426ac527fc7099ab6. 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: 15


Intelligence 15 IOCs 1 YARA 13 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 3f7658a27f67bee2e61e5232cc9219ad6d0b02725300bcc426ac527fc7099ab6
SHA3-384 hash: 7fc1dffb7ece9b6677fafd913454163df0c0daa245abdf8299ff0210bccf2457e3a2c7bafea17c8cae0feff8384f8ef4
SHA1 hash: ba241da2b4624e5de319fcea2a339484181cecae
MD5 hash: acd1823f730bbae6f40b8a72d5c33b23
humanhash: winter-king-eleven-finch
File name:3F7658A27F67BEE2E61E5232CC9219AD6D0B02725300B.exe
Download: download sample
Signature NanoCore
Create hunting rule
File size:1'762'304 bytes
First seen:2022-07-23 09:20:26 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash e5b4359a3773764a372173074ae9b6bd (60 x DarkComet, 2 x njrat, 1 x NanoCore)
ssdeep 24576:iZ1xuVVjfFoynPaVBUR8f+kN10EBUzhxApfIW8p+:iQDgok30dAF
Threatray 4'557 similar samples on MalwareBazaar
TLSH T11B85177265808537DD650F34A82B5A7D402B7EF1BC38BE4FEC9139586BB728E24251B3
TrID 75.6% (.CPL) Windows Control Panel Item (generic) (197083/11/60)
5.4% (.EXE) Win32 Executable Delphi generic (14182/79/4)
5.0% (.SCR) Windows screen saver (13101/52/3)
4.0% (.EXE) Win64 Executable (generic) (10523/12/4)
3.8% (.EXE) DOS Borland compiled Executable (generic) (10000/1/2)
File icon (PE):PE icon
dhash icon 449bacc6d2dce219 (1 x NanoCore)
Reporter abuse_ch
Tags:exe NanoCore RAT


Avatar
abuse_ch
NanoCore C2:
86.219.97.216:53896

Indicators Of Compromise (IOCs)

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

IOCThreatFox Reference
86.219.97.216:53896 https://threatfox.abuse.ch/ioc/839206/

Intelligence

File Origin
# of uploads :
1
# of downloads :
353
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/293636/
Detection(s):
Win.Trojan.DarkKomet-1
Create hunting rule

PUA.Win.Packer.Exe-6
Create hunting rule

Win.Trojan.NanoCore-9852758-0
Create hunting rule

Win.Trojan.Darkkomet-7113180-0
Create hunting rule

Win.Packed.Generic-9777790-0
Create hunting rule

Win.Trojan.Generic-9783914-0
Create hunting rule

Win.Packed.Rrat-9798963-0
Create hunting rule

Win.Trojan.Barys-9799359-0
Create hunting rule

Win.Dropper.Zeus-9820070-0
Create hunting rule

Win.Dropper.Darkkomet-9857869-0
Create hunting rule

Win.Trojan.Darkkomet-9857871-0
Create hunting rule

Win.Malware.Darkkomet-9857872-0
Create hunting rule

Win.Dropper.Nancrat-9869495-0
Create hunting rule

Win.Dropper.Nanocore-9916514-0
Create hunting rule

PUA.Win.Packer.PrivateEXEProtector4-6192998-2
Create hunting rule

Win.Trojan.Darkkomet-6745084-0
Create hunting rule

Win.Trojan.Nanocore-5
Create hunting rule

Win.Trojan.Vobfus-6875610-0
Create hunting rule

Win.Trojan.Fynloski-40
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
Creating a window
Creating a file in the %temp% directory
Creating a process from a recently created file
Modifying an executable file
Setting a keyboard event handler
Searching for synchronization primitives
Creating a file in the %AppData% subdirectories
Creating a file in the Program Files subdirectories
Creating a file in the %AppData% directory
Creating a file
Launching a process
Creating a process with a hidden window
DNS request
Unauthorized injection to a recently created process
Query of malicious DNS domain
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Enabling autorun by creating a file
Result
Malware family:
n/a
Score:
  6/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/27159/overview
Behaviour
MalwareBazaar
CheckScreenResolution
CheckCmdLine
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm bladabindi cmd.exe darkcomet darkkomet explorer.exe graybird greyware keylogger nanocore njrat packed packed rat windows
Link:
https://www.filescan.io/uploads/62dbbd8cee649612ac62ff14/reports/cb244e16-061f-4eb1-a43b-e524c54203b1/overview
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.
Malware family:
DarkComet
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/de2fa691-85a8-4e16-85b9-07b3e051c95a
Result
Threat name:
Darkcomet, Nanocore
Create hunting rule
Detection:
malicious
Classification:
rans.troj.adwa.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1039685
Signature
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Connects to many ports of the same IP (likely port scanning)
Contains functionality to capture and log keystrokes
Contains functionality to inject code into remote processes
Contains functionality to log keystrokes
Contains functionalty to change the wallpaper
Detected Darkcomet RAT
Detected Nanocore Rat
Drops PE files to the startup folder
Drops PE files with benign system names
Found evasive API chain (may stop execution after checking mutex)
Hides that the sample has been downloaded from the Internet (zone.identifier)
Installs a global keyboard hook
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
System process connects to network (likely due to code injection or exploit)
Uses dynamic DNS services
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected DarkComet
Yara detected Nanocore RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 672179 Sample: 3F7658A27F67BEE2E61E5232CC9... Startdate: 23/07/2022 Architecture: WINDOWS Score: 100 59 ratcenthoo.ddns.net 2->59 61 ratcentho.ddns.net 2->61 83 Malicious sample detected (through community Yara rule) 2->83 85 Antivirus detection for URL or domain 2->85 87 Antivirus detection for dropped file 2->87 89 14 other signatures 2->89 10 3F7658A27F67BEE2E61E5232CC9219AD6D0B02725300B.exe 6 2->10         started        15 explorer.exe 2->15         started        17 dhcpmon.exe 2->17         started        19 explorer.exe 2->19         started        signatures3 process4 dnsIp5 71 ratcentho.ddns.net 10->71 49 C:\Users\user\AppData\Local\...XPLORER.EXE, PE32 10->49 dropped 51 C:\Users\user\AppData\Local\Temp\CSRSS.EXE, PE32 10->51 dropped 53 C:\...\AUTHENTIFICATEUR CREDIT AGRICOLE.EXE, PE32 10->53 dropped 101 Detected Darkcomet RAT 10->101 103 Found evasive API chain (may stop execution after checking mutex) 10->103 105 Contains functionalty to change the wallpaper 10->105 109 5 other signatures 10->109 21 CSRSS.EXE 7 10->21         started        26 EXPLORER.EXE 1 10 10->26         started        28 AUTHENTIFICATEUR CREDIT AGRICOLE.EXE 2 10->28         started        30 3 other processes 10->30 73 ratcentho.ddns.net 15->73 107 System process connects to network (likely due to code injection or exploit) 15->107 file6 signatures7 process8 dnsIp9 63 ratcentho.ddns.net 86.219.97.216, 1605, 1962, 53896 FranceTelecom-OrangeFR France 21->63 65 192.168.2.1 unknown unknown 21->65 43 C:\Users\user\AppData\Roaming\explorer.exe, PE32 21->43 dropped 91 Antivirus detection for dropped file 21->91 93 Multi AV Scanner detection for dropped file 21->93 95 Machine Learning detection for dropped file 21->95 97 Drops PE files with benign system names 21->97 32 explorer.exe 21->32         started        67 ratcenthoo.ddns.net 26->67 45 C:\Program Files (x86)\...\dhcpmon.exe, PE32 26->45 dropped 47 C:\Users\user\AppData\Roaming\...\run.dat, data 26->47 dropped 99 Hides that the sample has been downloaded from the Internet (zone.identifier) 26->99 69 160.120.202.146 ORANGE-COTE-IVOIRECI Cote D'ivoire 28->69 file10 signatures11 process12 dnsIp13 55 ratcenthoo.ddns.net 32->55 57 ratcentho.ddns.net 32->57 41 C:\Users\user\AppData\...\explorer.exe, PE32 32->41 dropped 75 Antivirus detection for dropped file 32->75 77 System process connects to network (likely due to code injection or exploit) 32->77 79 Multi AV Scanner detection for dropped file 32->79 81 4 other signatures 32->81 37 schtasks.exe 32->37         started        file14 signatures15 process16 process17 39 conhost.exe 37->39         started       
Detection:
nanocore
Create hunting rule
Link:
https://mwdb.cert.pl/sample/3f7658a27f67bee2e61e5232cc9219ad6d0b02725300bcc426ac527fc7099ab6/
Threat name:
Win32.Backdoor.DarkComet
Create hunting rule
Status:
Malicious
First seen:
2022-07-20 23:43:00 UTC
File Type:
PE (Exe)
Extracted files:
28
AV detection:
26 of 26 (100.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=h53frit7m67ofzq6kizmzeqzvvwqwatskmalzrbgvrjh7ryjtk3a._file
Verdict:
malicious
Label(s):
nanocorerat
Create hunting rule
Similar samples:
1e6cf0bf090cbdb064a483cacc7bb094759083e8b5f199be562e30fed979398f
NanoCore
222e2ddd2cd5cb4156b9d1845c833d644d8a62d367004a271f6ec290a8aa2fb3
NanoCore
229b3ae39225d2c605ea1624f0e563afd4a8785b66bfa9a618e217d0f01059bc
NanoCore
288e97d97b9708e5c4d7a57b04ce9fc5b852e75c1945ad5378562d810a2f52af
NanoCore
2d45d900fec91d72f0e034e20a6b9a88790a67dbc655638baa24741f375b6f62
NanoCore
37f6015c7f1fe0422149a7d3695222e17c32d4506baab716a5d650a3b7315535
NanoCore
445bc3da96e63745748cc4d7d14faaa80122f46bc86e2a4628956f5aea4b70f7
NanoCore
99870955e988faaf5dd449b8470ff7bfb8ac7aa4819df8843d4778ae8a59d034
NanoCore
9f95c22d51882e238da73706c58c9903b4f8543b8dbc549c8b01f9d3b4210165
NanoCore
ffe208dedc1e233805e9a9ceb95862c7ef1b1e81ffd2b31d9fe5d8cd50bf3f73
NanoCore
+ 4'547 additional samples on MalwareBazaar
Result
Malware family:
nanocore
Create hunting rule
Score:
  10/10
Tags:
family:darkcomet family:nanocore botnet:guest16 evasion keylogger persistence rat spyware stealer trojan
Link:
https://tria.ge/reports/220723-lbb12sdea6/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops file in Program Files directory
Adds Run key to start application
Checks whether UAC is enabled
Checks computer location settings
Drops startup file
Loads dropped DLL
Executes dropped EXE
Darkcomet
NanoCore
Malware Config
C2 Extraction:
ratcentho.ddns.net:1605
ratcentho.ddns.net:53896
ratcenthoo.ddns.net:53896
Unpacked files
SH256 hash:
3f7658a27f67bee2e61e5232cc9219ad6d0b02725300bcc426ac527fc7099ab6
MD5 hash:
acd1823f730bbae6f40b8a72d5c33b23
SHA1 hash:
ba241da2b4624e5de319fcea2a339484181cecae
Detections:
win_darkcomet_a0
Create hunting rule
Link:
https://www.unpac.me/results/27325452-d5b8-400b-ae6e-1407a7abfb16/
Malware family:
NanoCore
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/3f7658a27f67/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
DarkComet
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/3f7658a27f67bee2e61e5232cc9219ad6d0b02725300bcc426ac527fc7099ab6

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:Intezer_Vaccine_DarkComet
Create hunting rule
Author:Intezer Labs
Description:Automatic YARA vaccination rule created based on the file's genes
Reference:https://analyze.intezer.com
Rule name:malware_Nanocore_strings
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Nanocore in memory
Reference:internal research
Rule name:Malware_QA_update
Create hunting rule
Author:Florian Roth
Description:VT Research QA uploaded malware - file update.exe
Reference:VT Research QA
Rule name:Malware_QA_update_RID2DAD
Create hunting rule
Author:Florian Roth
Description:VT Research QA uploaded malware - file update.exe
Reference:VT Research QA
Rule name:MALWARE_Win_DarkComet
Create hunting rule
Author:ditekSHen
Description:Detects DarkComet
Rule name:MALWARE_Win_NanoCore
Create hunting rule
Author:ditekSHen
Description:Detects NanoCore
Rule name:nanocore_rat
Create hunting rule
Author:jeFF0Falltrades
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:Nanocore_RAT_Gen_2_RID2D96
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:pdb_YARAify
Create hunting rule
Author:@wowabiy314
Description:PDB
Rule name:RAT_DarkComet
Create hunting rule
Author:Kevin Breen <kevin@techanarchy.net>
Description:Detects DarkComet RAT
Reference:http://malwareconfig.com/stats/DarkComet
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.

Cape
Cape
https://www.capesandbox.com/analysis/293636/

Comments