MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 492403113ddfbd166ad25bf96f89d4b9d0075cce788db0ee9c2c74c0d87773be. 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: 12


Intelligence 12 IOCs 1 YARA 11 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 492403113ddfbd166ad25bf96f89d4b9d0075cce788db0ee9c2c74c0d87773be
SHA3-384 hash: 071f6f8a0248a1756c4e9408168cd138f1603a6bf4f160e11bb264f50cc6354efb415a82aa936b7d18096eb4089efffc
SHA1 hash: 34b5780faa24ae2174da5cd453a7e6414c29cb97
MD5 hash: 9edbd3becd8b9d425eb2be7369f0d0a3
humanhash: early-monkey-video-iowa
File name:NAC0098765434567890-09876.exe
Download: download sample
Signature NanoCore
Create hunting rule
File size:533'233 bytes
First seen:2021-10-28 09:00:13 UTC
Last seen:2021-10-30 05:16:42 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash b76363e9cb88bf9390860da8e50999d2 (464 x Formbook, 184 x AgentTesla, 122 x SnakeKeylogger)
ssdeep 12288:sPCVjuSNBf4vsJou6s8oJgSAwiTCn8inGO0al+:jjxfqsF0bTCnMac
Threatray 3'181 similar samples on MalwareBazaar
TLSH T1E4B4CFBA3D0805C2E14C5C7147A94A5F533499A0AB5EF2D61E367EECC63178CEE6A4C3
File icon (PE):PE icon
dhash icon b2b2b2b2b2b0b28a (1 x NanoCore)
Reporter abuse_ch
Tags:exe NanoCore RAT


Avatar
abuse_ch
NanoCore C2:
185.222.57.90:4445

Indicators Of Compromise (IOCs)

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

IOCThreatFox Reference
185.222.57.90:4445 https://threatfox.abuse.ch/ioc/237971/

Intelligence

File Origin
# of uploads :
2
# of downloads :
158
Origin country :
n/a
Vendor Threat Intelligence
Detection:
NanoCore
Create hunting rule
Link:
https://www.capesandbox.com/analysis/200844/
Detection(s):
SecuriteInfo.com.Zum.Androm.1.23774.4274.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a file
Creating a window
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
80%
Tags:
overlay packed
Link:
https://www.filescan.io/uploads/617a66d0db358dd15ee28dad/reports/f80dc98d-3cc3-4958-9973-e43ea3309a5f/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:
NanoCoreRAT
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/26d768f9-21c4-43e7-97a8-0d607c41b27b
Result
Threat name:
Nanocore
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/878433
Signature
.NET source code contains potential unpacker
C2 URLs / IPs found in malware configuration
Detected Nanocore Rat
Detected unpacking (creates a PE file in dynamic memory)
Found malware configuration
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
Sigma detected: NanoCore
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected Nanocore RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 510867 Sample: NAC0098765434567890-09876.exe Startdate: 28/10/2021 Architecture: WINDOWS Score: 100 55 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->55 57 Found malware configuration 2->57 59 Malicious sample detected (through community Yara rule) 2->59 61 9 other signatures 2->61 8 NAC0098765434567890-09876.exe 17 2->8         started        12 dhcpmon.exe 16 2->12         started        14 NAC0098765434567890-09876.exe 16 2->14         started        process3 file4 45 C:\Users\user\AppData\...\wmrjeycpcw.dll, PE32 8->45 dropped 65 Uses schtasks.exe or at.exe to add and modify task schedules 8->65 67 Injects a PE file into a foreign processes 8->67 16 NAC0098765434567890-09876.exe 1 17 8->16         started        47 C:\Users\user\AppData\Local\...\zi78uj37iz3, DOS 12->47 dropped 49 C:\Users\user\AppData\...\wmrjeycpcw.dll, PE32 12->49 dropped 21 dhcpmon.exe 3 12->21         started        51 C:\Users\user\AppData\...\wmrjeycpcw.dll, PE32 14->51 dropped 23 NAC0098765434567890-09876.exe 3 14->23         started        signatures5 process6 dnsIp7 53 185.222.57.90, 4445, 49767, 49768 ROOTLAYERNETNL Netherlands 16->53 33 C:\Program Files (x86)\...\dhcpmon.exe, PE32 16->33 dropped 35 C:\Users\user\AppData\Roaming\...\run.dat, Non-ISO 16->35 dropped 37 C:\Users\user\AppData\Local\...\tmpC051.tmp, XML 16->37 dropped 39 C:\...\dhcpmon.exe:Zone.Identifier, ASCII 16->39 dropped 63 Hides that the sample has been downloaded from the Internet (zone.identifier) 16->63 25 schtasks.exe 1 16->25         started        27 schtasks.exe 1 16->27         started        41 C:\Users\user\AppData\...\dhcpmon.exe.log, ASCII 21->41 dropped 43 C:\...43AC0098765434567890-09876.exe.log, ASCII 23->43 dropped file8 signatures9 process10 process11 29 conhost.exe 25->29         started        31 conhost.exe 27->31         started       
Detection:
nanocore
Create hunting rule
Link:
https://mwdb.cert.pl/sample/492403113ddfbd166ad25bf96f89d4b9d0075cce788db0ee9c2c74c0d87773be/
Threat name:
Win32.Backdoor.Zapchast
Create hunting rule
Status:
Malicious
First seen:
2021-10-28 09:01:06 UTC
AV detection:
13 of 44 (29.55%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=jesagej5366rm2wslp4w7couxhiaoxgopcg3b3u4fr2mbwdxoo7a._file
Verdict:
malicious
Label(s):
nanocorerat
Create hunting rule
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dc9030495d59d6792868d978609f095ab2cf6145a60897550d606712717bac76
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ef35e9ee19b48afad15e3a49ba0df682604fe2412830b6f4ac06f2119d57b953
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f886c6422b5646eb98dc8dc9ab5ed9f5f09aaee19770ef4be2b576b9ba84efaf
NanoCore
+ 3'171 additional samples on MalwareBazaar
Result
Malware family:
nanocore
Create hunting rule
Score:
  10/10
Tags:
family:nanocore evasion keylogger persistence spyware stealer suricata trojan
Link:
https://tria.ge/reports/211028-kywtasfhbp/
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
Checks whether UAC is enabled
Loads dropped DLL
NanoCore
suricata: ET MALWARE Possible NanoCore C2 60B
Malware Config
C2 Extraction:
185.222.57.90:4445
Unpacked files
SH256 hash:
492403113ddfbd166ad25bf96f89d4b9d0075cce788db0ee9c2c74c0d87773be
MD5 hash:
9edbd3becd8b9d425eb2be7369f0d0a3
SHA1 hash:
34b5780faa24ae2174da5cd453a7e6414c29cb97
Link:
https://www.unpac.me/results/2f9d84c0-b7b5-4d32-be55-6ea5801cca54/
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/492403113ddfbd166ad25bf96f89d4b9d0075cce788db0ee9c2c74c0d87773be

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:MALWARE_Win_NanoCore
Create hunting rule
Author:ditekSHen
Description:Detects NanoCore
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_Feb18_1_RID2DF1
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: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:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
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/200844/

Comments