MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 02bf16ff2f32d689f47d750e106e87a61b7a0ad26a2823a13b51ee5295a6ae75. 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: 13


Intelligence 13 IOCs YARA 12 File information Comments

SHA256 hash: 02bf16ff2f32d689f47d750e106e87a61b7a0ad26a2823a13b51ee5295a6ae75
SHA3-384 hash: ac55fb350eec4eb89a4eeffaf2f843a86f2f21ff342565bde394592a7d57c6bb4d97d9b65405e9c4aaa19be5b43368bf
SHA1 hash: 517282476e12a8c28f72491e8f952ae1c71abeec
MD5 hash: f807e01db1cc13f748e500e52e4ad757
humanhash: black-pasta-lima-emma
File name:UTYHFG03983765367839837653.exe
Download: download sample
Signature NanoCore
File size:1'104'896 bytes
First seen:2021-11-17 15:17:03 UTC
Last seen:2021-11-17 16:28:45 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'205 x SnakeKeylogger)
ssdeep 24576:Fk/2YpVJXYyPwIpZux6d4jZqNTJXOaUo+:FaVJrwIpCVZyRO7x
Threatray 3'286 similar samples on MalwareBazaar
TLSH T12F35F0253BB99F03C5BD8BF84A65D24803B57A4869A7D71F2DD331CF7EA2B814A42503
File icon (PE):PE icon
dhash icon 18b462e4ecc9c060 (2 x NanoCore)
Reporter Anonymous
Tags:exe NanoCore

Intelligence


File Origin
# of uploads :
2
# of downloads :
170
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
UTYHFG03983765367839837653.exe
Verdict:
Malicious activity
Analysis date:
2021-11-17 16:35:33 UTC
Tags:
rat nanocore

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

Behaviour
Searching for the window
Creating a window
DNS request
Сreating synchronization primitives
Launching a process
Creating a process with a hidden window
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
obfuscated packed
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.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
C2 URLs / IPs found in malware configuration
Detected Nanocore Rat
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Bad Opsec Defaults Sacrificial Processes With Improper Arguments
Sigma detected: NanoCore
Sigma detected: Powershell Defender Exclusion
Sigma detected: Suspicius Add Task From User AppData Temp
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected Nanocore RAT
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 523831 Sample: UTYHFG03983765367839837653.exe Startdate: 17/11/2021 Architecture: WINDOWS Score: 100 57 1211.hopto.org 2->57 63 Multi AV Scanner detection for domain / URL 2->63 65 Found malware configuration 2->65 67 Malicious sample detected (through community Yara rule) 2->67 69 12 other signatures 2->69 9 UTYHFG03983765367839837653.exe 7 2->9         started        14 RegSvcs.exe 2 2->14         started        16 dhcpmon.exe 2 2->16         started        18 dhcpmon.exe 2->18         started        signatures3 process4 dnsIp5 61 192.168.2.1 unknown unknown 9->61 51 C:\Users\user\AppData\...ddnbOLSGObb.exe, PE32 9->51 dropped 53 C:\Users\user\AppData\Local\...\tmpAD41.tmp, XML 9->53 dropped 55 C:\...\UTYHFG03983765367839837653.exe.log, ASCII 9->55 dropped 73 Uses schtasks.exe or at.exe to add and modify task schedules 9->73 75 Writes to foreign memory regions 9->75 77 Adds a directory exclusion to Windows Defender 9->77 79 Injects a PE file into a foreign processes 9->79 20 RegSvcs.exe 1 11 9->20         started        25 powershell.exe 19 9->25         started        27 schtasks.exe 1 9->27         started        29 conhost.exe 14->29         started        31 conhost.exe 16->31         started        33 conhost.exe 18->33         started        file6 signatures7 process8 dnsIp9 59 1211.hopto.org 185.140.53.131, 1211, 49766, 49770 DAVID_CRAIGGG Sweden 20->59 47 C:\Users\user\AppData\Roaming\...\run.dat, zlib 20->47 dropped 49 C:\Program Files (x86)\...\dhcpmon.exe, PE32 20->49 dropped 71 Hides that the sample has been downloaded from the Internet (zone.identifier) 20->71 35 schtasks.exe 1 20->35         started        37 schtasks.exe 1 20->37         started        39 conhost.exe 25->39         started        41 conhost.exe 27->41         started        file10 signatures11 process12 process13 43 conhost.exe 35->43         started        45 conhost.exe 37->45         started       
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2021-11-17 15:17:11 UTC
AV detection:
24 of 45 (53.33%)
Threat level:
  5/5
Result
Malware family:
nanocore
Score:
  10/10
Tags:
family:nanocore keylogger persistence spyware stealer trojan
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops file in Program Files directory
Suspicious use of SetThreadContext
Adds Run key to start application
NanoCore
Malware Config
C2 Extraction:
1211.hopto.org:1211
185.140.53.131:1211
Unpacked files
SH256 hash:
86fe170cc6dd3a576807c1192a06ead68bf210f9ccd14f1a81d4f44c2dbcc25f
MD5 hash:
bf5c170790a9378101dbc312303925e3
SHA1 hash:
bddaf21c02ba5cec7c4dfd1b1f289e23714a8ba8
SH256 hash:
640bb5b97eb19cf82529c71417d5e2bf56d6b6a6440458dd28fac9250fa16923
MD5 hash:
80754020bd558fcdf658261059ab7624
SHA1 hash:
0a2d44d71dcf0a4f2fc626c72154e1b086534b28
SH256 hash:
b91228a54609c44577f6a0346a4dae1a3de62ce90ac28ff809afaabb4475d28e
MD5 hash:
d062bbcee1ef11b80ad7fb9a3abef1e2
SHA1 hash:
010dd8f0ec41ae626844bcbe0077eca7f8cf3434
SH256 hash:
02bf16ff2f32d689f47d750e106e87a61b7a0ad26a2823a13b51ee5295a6ae75
MD5 hash:
f807e01db1cc13f748e500e52e4ad757
SHA1 hash:
517282476e12a8c28f72491e8f952ae1c71abeec
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:MALWARE_Win_NanoCore
Author:ditekSHen
Description:Detects NanoCore
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_Feb18_1_RID2DF1
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:Nanocore_RAT_Gen_2_RID2D96
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: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.

  
Delivery method
Distributed via e-mail link

Comments