MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 685c4ec1a2f35580b43db8fdf85fe8eca38731d080f8c378db4a0051a3a0d8bd. 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: 17


Intelligence 17 IOCs YARA 14 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 685c4ec1a2f35580b43db8fdf85fe8eca38731d080f8c378db4a0051a3a0d8bd
SHA3-384 hash: ac2bcfc9a6952a526f6eb8519a4edb6a780c1c8fb520206e571d0d80b46441ac976327a8c2d0e0ea47cf92cfa8e77017
SHA1 hash: caeb08efc2a87f56e909273a3ba5c34a3fa62250
MD5 hash: c3daecf434de806378ca5d6f4e969fea
humanhash: enemy-kansas-apart-oranges
File name:c3daecf434de806378ca5d6f4e969fea.exe
Download: download sample
Signature NanoCore
Create hunting rule
File size:607'101 bytes
First seen:2023-01-19 02:00:13 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 61259b55b8912888e90f516ca08dc514 (1'059 x Formbook, 741 x AgentTesla, 427 x GuLoader)
ssdeep 12288:SYrVpkiWYIHH4V7C2vDGVMb7PeKVyVIjEdj5ZSE7xiPvCnhz4Q5iR:SYrVpkiIHYV7L7GVMnepKjErEPvChkQY
TLSH T1E3D4126073B4F497F89E03B82669F329D700C463609386563B706EDFFABD9A10C5A746
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10523/12/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon ccc6cacac2e2b294 (1 x NanoCore)
Reporter abuse_ch
Tags:exe NanoCore RAT


Avatar
abuse_ch
NanoCore C2:
195.133.40.119:2500

Intelligence

File Origin
# of uploads :
1
# of downloads :
290
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
nanocore
Create hunting rule
ID:
1
File name:
�� l� �8 �8 202200027 - 4 (1).eml
Verdict:
Malicious activity
Analysis date:
2023-01-18 06:06:14 UTC
Tags:
exploit cve-2017-11882 loader nanocore
Link:
https://app.any.run/tasks/e21f140a-f4e9-436b-a83d-67734c2ec3d4

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/354311/
Detection(s):
SecuriteInfo.com.Variant.Babar.142004.14772.20718.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a window
Creating a process from a recently created file
Сreating synchronization primitives
Creating a file in the %AppData% subdirectories
Creating a file in the Program Files subdirectories
Launching a process
DNS request
Connecting to a non-recommended domain
Sending a custom TCP request
Using the Windows Management Instrumentation requests
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Enabling autorun by creating a file
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/61337/overview
Behaviour
MalwareBazaar
Verdict:
No Threat
Threat level:
  10/10
Confidence:
83%
Tags:
overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/63c8a45f81817f6f4dc49d44/reports/7a0bc803-b561-4d24-a4ea-90b8df99a532/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:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/1a75bd74-b3e9-4072-a76d-817f76312c1c
Result
Threat name:
Nanocore
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1154333
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to detect sleep reduction / modifications
Detected Nanocore Rat
Hides that the sample has been downloaded from the Internet (zone.identifier)
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
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
Snort IDS alert for network traffic
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: 787065 Sample: LzmJdf8jkG.exe Startdate: 19/01/2023 Architecture: WINDOWS Score: 100 53 Snort IDS alert for network traffic 2->53 55 Malicious sample detected (through community Yara rule) 2->55 57 Antivirus detection for URL or domain 2->57 59 7 other signatures 2->59 9 LzmJdf8jkG.exe 19 2->9         started        12 dhcpmon.exe 2->12         started        14 iweenb.exe 2->14         started        16 dhcpmon.exe 2->16         started        process3 file4 41 C:\Users\user\AppData\Local\Temp\iweenb.exe, PE32 9->41 dropped 18 iweenb.exe 9->18         started        21 WerFault.exe 20 9 12->21         started        24 WerFault.exe 5 9 14->24         started        26 WerFault.exe 10 16->26         started        process5 dnsIp6 61 Multi AV Scanner detection for dropped file 18->61 63 Uses schtasks.exe or at.exe to add and modify task schedules 18->63 65 Maps a DLL or memory area into another process 18->65 67 Contains functionality to detect sleep reduction / modifications 18->67 28 iweenb.exe 1 14 18->28         started        49 192.168.2.1 unknown unknown 21->49 signatures7 process8 dnsIp9 51 favgrandson7.sytes.net 195.133.40.119, 2500, 49697, 49707 SPD-NETTR Russian Federation 28->51 43 C:\Program Files (x86)\...\dhcpmon.exe, PE32 28->43 dropped 45 C:\Users\user\AppData\Roaming\...\run.dat, Non-ISO 28->45 dropped 47 C:\Users\user\AppData\Local\...\tmpA87C.tmp, XML 28->47 dropped 69 Hides that the sample has been downloaded from the Internet (zone.identifier) 28->69 33 schtasks.exe 1 28->33         started        35 schtasks.exe 1 28->35         started        file10 signatures11 process12 process13 37 conhost.exe 33->37         started        39 conhost.exe 35->39         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/685c4ec1a2f35580b43db8fdf85fe8eca38731d080f8c378db4a0051a3a0d8bd/
Threat name:
Win32.Backdoor.NanoCore
Create hunting rule
Status:
Malicious
First seen:
2023-01-18 06:10:30 UTC
AV detection:
22 of 38 (57.89%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=nboe5qnc6nkybnb5xd67qx7i5sryomoqqd4mg6g3jiafdi5a3c6q._file
Verdict:
malicious
Label(s):
nanocorerat
Create hunting rule
Result
Malware family:
nanocore
Create hunting rule
Score:
  10/10
Tags:
family:nanocore evasion keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/230119-cfj3sacd52/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
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
Executes dropped EXE
NanoCore
Malware Config
C2 Extraction:
favgrandson7.sytes.net:2500
127.0.0.1:2500
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/bd9fe1b3-6389-4419-ae08-697d1023cc64
Unpacked files
SH256 hash:
65216f76fc9bf92e8f56d3da7124c2f2860bdd92d245e040e1589694bc0295b8
MD5 hash:
4feb273efdc33b09ce135b83442c3227
SHA1 hash:
1442e48d7ef4d7176c7cef3f95b759d87fcb2d33
Link:
https://www.unpac.me/results/9369d380-ed3d-4101-95b3-dabfb65df174/
SH256 hash:
685c4ec1a2f35580b43db8fdf85fe8eca38731d080f8c378db4a0051a3a0d8bd
MD5 hash:
c3daecf434de806378ca5d6f4e969fea
SHA1 hash:
caeb08efc2a87f56e909273a3ba5c34a3fa62250
Link:
https://www.unpac.me/results/9369d380-ed3d-4101-95b3-dabfb65df174/
Malware family:
NanoCore
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/685c4ec1a2f3/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Nanocore
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/685c4ec1a2f35580b43db8fdf85fe8eca38731d080f8c378db4a0051a3a0d8bd

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:cobalt_strike_tmp01925d3f
Create hunting rule
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.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_Win_NanoCore
Create hunting rule
Author:ditekSHen
Description:Detects NanoCore
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:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:Windows_Trojan_Nanocore_d8c4e3c5
Create hunting rule
Author:Elastic Security
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.

Web download

NanoCore

Executable exe 685c4ec1a2f35580b43db8fdf85fe8eca38731d080f8c378db4a0051a3a0d8bd

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2260834/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/354311/

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