MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 cc2133ab66892f802732e3c9cdb68edabb25b55b8184aa3161ec37c0973a89d8. 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: 9


Intelligence 9 IOCs YARA 3 File information Comments

SHA256 hash: cc2133ab66892f802732e3c9cdb68edabb25b55b8184aa3161ec37c0973a89d8
SHA3-384 hash: aa2f3dde7c84352281b172fec216c9e9b904699b551026dacc485db12e4a6092bd3c10102b1047fc5827bb16ccacc80a
SHA1 hash: e2c71e21d3e9b5e446d02d4cc94f21d7bed4a44a
MD5 hash: 6904635bf25102291d84ddf74acb7b54
humanhash: double-bacon-video-massachusetts
File name:invoice copy.pdf.exe
Download: download sample
Signature NanoCore
File size:601'088 bytes
First seen:2021-05-19 13:29:50 UTC
Last seen:2021-05-19 16:10:29 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'743 x AgentTesla, 19'608 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:dQWls/fBTk7YKrNjFSW39r0KbkgTXZZBqtrybr8SXKz:tm/p2YKrhXIgTjBqhybkz
Threatray 1'952 similar samples on MalwareBazaar
TLSH 80D401243B9AAB69E6BE8B7D0675920013F1F616D312C70D3E99259D1E31BD0D3A2733
Reporter GovCERT_CH
Tags:NanoCore

Intelligence


File Origin
# of uploads :
2
# of downloads :
86
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
invoice copy.pdf.exe
Verdict:
Malicious activity
Analysis date:
2021-05-19 13:35:50 UTC
Tags:
rat nanocore

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

Behaviour
Creating a window
Sending a UDP request
Result
Threat name:
Nanocore
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
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)
Initial sample is a PE file and has a suspicious name
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
Multi AV Scanner detection for submitted file
Sigma detected: NanoCore
Sigma detected: Suspicious Double Extension
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses an obfuscated file name to hide its real file extension (double extension)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected Nanocore RAT
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2021-05-19 11:05:32 UTC
File Type:
PE (.Net Exe)
Extracted files:
26
AV detection:
27 of 47 (57.45%)
Threat level:
  5/5
Result
Malware family:
nanocore
Score:
  10/10
Tags:
family:nanocore evasion keylogger 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
Suspicious use of SetThreadContext
Checks whether UAC is enabled
NanoCore
Malware Config
C2 Extraction:
23.105.131.161:4040
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:hancitor_halo_generated
Author:Halogen Generated Rule, Corsin Camichel
Rule name:pe_imphash
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash

File information


The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

NanoCore

Executable exe cc2133ab66892f802732e3c9cdb68edabb25b55b8184aa3161ec37c0973a89d8

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments