MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 55f42292f0d6123865403057d672ea236eaf8c306f5654772a0e3c3eb3b3d198. 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 12 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 55f42292f0d6123865403057d672ea236eaf8c306f5654772a0e3c3eb3b3d198
SHA3-384 hash: 70b35c66724988006bce01a489abfcf136b05da3e4e99003a2c42ed6e3545edb55a34f9ccab493f2641eb02625562cc1
SHA1 hash: 768891985214c7a6a23e692ad565643acdace0f4
MD5 hash: 1085230a800b6088b5a6d8283e870c44
humanhash: butter-dakota-island-kansas
File name:1085230a800b6088b5a6d8283e870c44.exe
Download: download sample
Signature NanoCore
Create hunting rule
File size:117'248 bytes
First seen:2021-10-05 18:47:06 UTC
Last seen:2021-10-05 19:47:19 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'741 x AgentTesla, 19'604 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 1536:4u5JDeCDccWzVUF8l0Idx1BEgCRDiX9K9bnSERjI5g5pikHyl3tpaWQsxmo:XGC0zVNllxDBCRDiYz64Hs9paWNo
Threatray 2'987 similar samples on MalwareBazaar
TLSH T1ACB3062176898B52F23CA775AAF3454003F2B607AB3BD24F7C9805FE8762B45C751A93
Reporter abuse_ch
Tags:exe NanoCore RAT


Avatar
abuse_ch
NanoCore C2:
185.140.53.3:6700

Indicators Of Compromise (IOCs)

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

IOCThreatFox Reference
185.140.53.3:6700 https://threatfox.abuse.ch/ioc/230869/

Intelligence

File Origin
# of uploads :
2
# of downloads :
368
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
1085230a800b6088b5a6d8283e870c44.exe
Verdict:
Malicious activity
Analysis date:
2021-10-05 18:49:41 UTC
Tags:
trojan nanocore rat
Link:
https://app.any.run/tasks/392aa4b2-d6ed-4b28-b34d-275dec5feb08

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
NanoCore
Create hunting rule
Link:
https://www.capesandbox.com/analysis/195185/
Detection(s):
SecuriteInfo.com.Variant.Ser.MSILHeracles.124.23587.12654.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/615c9de3b95458900cdc9b37/reports/6762d7be-6ed6-4d2b-8f12-16712c39c415/overview
Malware family:
NanoCoreRAT
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/2f1bb560-e156-47f8-bf41-0d8e8528334f
Result
Threat name:
Nanocore
Create hunting rule
Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/865059
Signature
Adds a directory exclusion to Windows Defender
C2 URLs / IPs found in malware configuration
Changes security center settings (notifications, updates, antivirus, firewall)
Creates an autostart registry key pointing to binary in C:\Windows
Creates autostart registry keys with suspicious names
Detected Nanocore Rat
Drops executables to the windows directory (C:\Windows) and starts them
Drops PE files with benign system names
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Hides threads from debuggers
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: Powershell Defender Exclusion
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
System process connects to network (likely due to code injection or exploit)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses dynamic DNS services
Yara detected AntiVM3
Yara detected Nanocore RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 497487 Sample: FZJCUwvp0s.exe Startdate: 05/10/2021 Architecture: WINDOWS Score: 100 75 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->75 77 Found malware configuration 2->77 79 Malicious sample detected (through community Yara rule) 2->79 81 12 other signatures 2->81 7 FZJCUwvp0s.exe 18 6 2->7         started        12 svchost.exe 2->12         started        14 svchost.exe 2->14         started        16 8 other processes 2->16 process3 dnsIp4 69 cdn.discordapp.com 162.159.135.233, 443, 49730, 49756 CLOUDFLARENETUS United States 7->69 61 C:\Windows\Resources\Themes\...\svchost.exe, PE32 7->61 dropped 63 C:\Windows\...\svchost.exe:Zone.Identifier, ASCII 7->63 dropped 85 Creates autostart registry keys with suspicious names 7->85 87 Creates an autostart registry key pointing to binary in C:\Windows 7->87 89 Adds a directory exclusion to Windows Defender 7->89 91 Drops PE files with benign system names 7->91 18 FZJCUwvp0s.exe 7->18         started        23 WerFault.exe 7->23         started        25 powershell.exe 25 7->25         started        31 2 other processes 7->31 71 162.159.129.233, 443, 49746 CLOUDFLARENETUS United States 12->71 93 System process connects to network (likely due to code injection or exploit) 12->93 95 Multi AV Scanner detection for dropped file 12->95 97 Machine Learning detection for dropped file 12->97 27 powershell.exe 12->27         started        29 powershell.exe 12->29         started        33 2 other processes 12->33 99 Hides threads from debuggers 14->99 35 4 other processes 14->35 73 127.0.0.1 unknown unknown 16->73 101 Changes security center settings (notifications, updates, antivirus, firewall) 16->101 37 4 other processes 16->37 file5 signatures6 process7 dnsIp8 65 fridayom.duckdns.org 185.140.53.3, 49747, 49755, 49759 DAVID_CRAIGGG Sweden 18->65 57 C:\Users\user\AppData\Roaming\...\run.dat, Non-ISO 18->57 dropped 83 Hides that the sample has been downloaded from the Internet (zone.identifier) 18->83 59 C:\ProgramData\Microsoft\...\Report.wer, Little-endian 23->59 dropped 39 conhost.exe 25->39         started        41 conhost.exe 27->41         started        43 conhost.exe 29->43         started        45 conhost.exe 31->45         started        47 conhost.exe 31->47         started        67 192.168.2.1 unknown unknown 33->67 49 conhost.exe 33->49         started        51 conhost.exe 35->51         started        55 2 other processes 35->55 53 conhost.exe 37->53         started        file9 signatures10 process11
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/55f42292f0d6123865403057d672ea236eaf8c306f5654772a0e3c3eb3b3d198/
Threat name:
ByteCode-MSIL.Trojan.Heracles
Create hunting rule
Status:
Malicious
First seen:
2021-10-02 21:56:49 UTC
AV detection:
15 of 45 (33.33%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=kx2cfexq2yjdqzkagbl5m4xkenxk7dbqn5lfi5zkby6d5m5t2gma._file
Verdict:
malicious
Label(s):
nanocorerat
Create hunting rule
Similar samples:
2b8a102443d6ed4c84471a54f058f24f5f55485bba73ebd785fdce294e337110
NanoCore
305bf6557bcc3df14cf33993d14e03fa84a6bd7611a990402fae4522ff098454
NanoCore
3d8811d64e17d5ea06d0edae6163b90b2400d06d9afa60ae689d6fe9232bca86
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437c9421ae36bc19198438f86b86a39de0d207449abef097eb9656743823c256
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4d01d1b24f4f7487669486becc7ff8b43a126f56ffb3d8fcce8c66b200412475
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4d394ed696ee7fb3d53a7b064c53f2157b28d9f192de912fe311dd284845e4c9
NanoCore
5a8b4dc95322eed89a2c77350395f8c1f79394369bebec84703ae285092a37f5
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9f96527c9f839559485e89c5c5ff8f95708035fd55c9fac0c2edf3764224d860
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9fc2ec9a478ddf812c9687c805f340989dc0af33b48100ec6621e422035ce579
NanoCore
a276b0d2aaf8a132ffbe9ae16763975bcf38fc1e5a6419890712fc3de02b793f
NanoCore
+ 2'977 additional samples on MalwareBazaar
Result
Malware family:
nanocore
Create hunting rule
Score:
  10/10
Tags:
family:nanocore evasion keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/211005-xfsedaacb5/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Drops file in Windows directory
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Adds Run key to start application
Checks whether UAC is enabled
Windows security modification
NanoCore
Windows security bypass
Malware Config
C2 Extraction:
fridayom.duckdns.org:6700
Unpacked files
SH256 hash:
55f42292f0d6123865403057d672ea236eaf8c306f5654772a0e3c3eb3b3d198
MD5 hash:
1085230a800b6088b5a6d8283e870c44
SHA1 hash:
768891985214c7a6a23e692ad565643acdace0f4
Link:
https://www.unpac.me/results/b5467277-da20-4f96-82e3-ff8f4f0b8ca0/
Malware family:
NanoCore
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/55f42292f0d6/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.51
Link:
https://yomi.yoroi.company/submissions/55f42292f0d6123865403057d672ea236eaf8c306f5654772a0e3c3eb3b3d198

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:INDICATOR_SUSPICIOUS_EXE_DiscordURL
Create hunting rule
Author:ditekSHen
Description:Detects executables Discord URL observed in first stage droppers
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: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/195185/

Comments