MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c6457a0fe457a850ef3f98e93155529e794d669d44b279b146841b995005f32e. 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 1 YARA 10 File information Comments

SHA256 hash: c6457a0fe457a850ef3f98e93155529e794d669d44b279b146841b995005f32e
SHA3-384 hash: fe4ea2ff41f9e9d32e6e213883c955403a85ffa03ef0896464d51af6a7694a6f8d7b8888094593187758a8463f855b2c
SHA1 hash: 43eeeb4255e7390ac176f6c241a46c7c75b4387e
MD5 hash: de98fa31d56dd885da7947a242a7e315
humanhash: rugby-arkansas-washington-six
File name:de98fa31d56dd885da7947a242a7e315.exe
Download: download sample
Signature NanoCore
File size:315'265 bytes
First seen:2021-09-28 14:21:39 UTC
Last seen:2021-09-28 14:45:49 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash b76363e9cb88bf9390860da8e50999d2 (464 x Formbook, 184 x AgentTesla, 122 x SnakeKeylogger)
ssdeep 6144:F8LxBsDDSvWNjqk0SPNJAxHWA3XXiPL35beKHyclto9W9ni7oZE:/L0SPNSx9SPL7LtJi3
Threatray 3'506 similar samples on MalwareBazaar
TLSH T1DF64229777C146F3E7E522B241AEC73AEBEFE22A01AA9E0347B45E76705D083442D1D1
File icon (PE):PE icon
dhash icon b2a89c96a2cada72 (2'283 x Formbook, 981 x Loki, 803 x AgentTesla)
Reporter abuse_ch
Tags:exe NanoCore RAT


Avatar
abuse_ch
NanoCore C2:
101.99.94.139:5499

Indicators Of Compromise (IOCs)


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

IOCThreatFox Reference
101.99.94.139:5499 https://threatfox.abuse.ch/ioc/227474/

Intelligence


File Origin
# of uploads :
2
# of downloads :
165
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
de98fa31d56dd885da7947a242a7e315.exe
Verdict:
Malicious activity
Analysis date:
2021-09-28 14:31:55 UTC
Tags:
trojan rat nanocore

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

Behaviour
Creating a file in the %temp% directory
Creating a file
Unauthorized injection to a recently created process
Creating a window
Creating a file in the %AppData% subdirectories
DNS request
Connection attempt
Sending a custom TCP request
Using the Windows Management Instrumentation requests
Result
Threat name:
Nanocore
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
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
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Sigma detected: NanoCore
Yara detected Nanocore RAT
Behaviour
Behavior Graph:
Threat name:
Win32.Trojan.AgentTesla
Status:
Malicious
First seen:
2021-09-28 15:07:02 UTC
AV detection:
18 of 28 (64.29%)
Threat level:
  5/5
Result
Malware family:
nanocore
Score:
  10/10
Tags:
family:nanocore evasion keylogger spyware stealer suricata trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks whether UAC is enabled
Loads dropped DLL
NanoCore
suricata: ET MALWARE Possible NanoCore C2 60B
Malware Config
C2 Extraction:
2meonline.ddnsgeek.com:5499
Unpacked files
SH256 hash:
c6457a0fe457a850ef3f98e93155529e794d669d44b279b146841b995005f32e
MD5 hash:
de98fa31d56dd885da7947a242a7e315
SHA1 hash:
43eeeb4255e7390ac176f6c241a46c7c75b4387e
Malware family:
NanoCore
Verdict:
Malicious
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: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: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.

Web download

NanoCore

Executable exe c6457a0fe457a850ef3f98e93155529e794d669d44b279b146841b995005f32e

(this sample)

  
Delivery method
Distributed via web download

Comments