MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 75b2633f758fe5df695225f111dd5b04bbc1753062be544c2e217cad289e1ddf. 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 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 75b2633f758fe5df695225f111dd5b04bbc1753062be544c2e217cad289e1ddf
SHA3-384 hash: 0f8b92a30a6356a825c1df3766c30160b9c3fcc244818eea37516b3da9c9272e9d0992364697098c39097816a0d16933
SHA1 hash: 878188ae46ffdde9f0502e38d60f493d608496f4
MD5 hash: 0b1d339690aa42985c82aa77b266d6f6
humanhash: hawaii-london-xray-oxygen
File name:0b1d339690aa42985c82aa77b266d6f6
Download: download sample
Signature NanoCore
Create hunting rule
File size:271'872 bytes
First seen:2021-06-13 13:30:43 UTC
Last seen:2021-06-13 14:38:37 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'452 x Formbook, 12'202 x SnakeKeylogger)
ssdeep 6144:K/JhHgKse6K7+M9CebzXLaji1cp+r2WJcinHSRbPmfwQpW4er:mJ5gKRiMI0XL11cp+xHSRrm0r
TLSH F94402BE02C46BBDCE9B37365FE64612D36412C2B016821579DC53CB23C9DA981B62DF
Reporter zbetcheckin
Tags:32 exe NanoCore

Indicators Of Compromise (IOCs)

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

IOCThreatFox Reference
136.144.41.4:4991 https://threatfox.abuse.ch/ioc/102037/

Intelligence

File Origin
# of uploads :
2
# of downloads :
285
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
INV-108473910.cab
Verdict:
Malicious activity
Analysis date:
2021-06-11 20:55:54 UTC
Tags:
trojan nanocore rat stealer
Link:
https://app.any.run/tasks/44867bf1-fade-4bc1-bf9c-7bdafc8af1c3

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Trojan.GenericKD.37074144.5611.9298.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a window
Launching a process
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:
Generic Malware
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/8cb72ab9-85c6-4409-b897-1600613c4e2b
Result
Threat name:
Nanocore
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/801319
Signature
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
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)
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
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: 433715 Sample: LcMc7jPpOp Startdate: 13/06/2021 Architecture: WINDOWS Score: 100 49 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->49 51 Found malware configuration 2->51 53 Malicious sample detected (through community Yara rule) 2->53 55 11 other signatures 2->55 8 LcMc7jPpOp.exe 1 2->8         started        12 dhcpmon.exe 1 2->12         started        14 LcMc7jPpOp.exe 2->14         started        16 dhcpmon.exe 2->16         started        process3 file4 45 C:\Users\user\AppData\...\LcMc7jPpOp.exe.log, ASCII 8->45 dropped 59 Uses schtasks.exe or at.exe to add and modify task schedules 8->59 18 LcMc7jPpOp.exe 1 16 8->18         started        23 dhcpmon.exe 2 12->23         started        25 LcMc7jPpOp.exe 2 14->25         started        27 dhcpmon.exe 2 16->27         started        signatures5 process6 dnsIp7 47 136.144.41.4, 49721, 49726, 49728 WORLDSTREAMNL Netherlands 18->47 37 C:\Program Files (x86)\...\dhcpmon.exe, PE32 18->37 dropped 39 C:\Users\user\AppData\Roaming\...\run.dat, data 18->39 dropped 41 C:\Users\user\AppData\Local\...\tmpE0C7.tmp, XML 18->41 dropped 43 C:\...\dhcpmon.exe:Zone.Identifier, ASCII 18->43 dropped 57 Hides that the sample has been downloaded from the Internet (zone.identifier) 18->57 29 schtasks.exe 1 18->29         started        31 schtasks.exe 1 18->31         started        file8 signatures9 process10 process11 33 conhost.exe 29->33         started        35 conhost.exe 31->35         started       
Detection:
nanocore
Create hunting rule
Link:
https://mwdb.cert.pl/sample/75b2633f758fe5df695225f111dd5b04bbc1753062be544c2e217cad289e1ddf/
Threat name:
Win32.Backdoor.NanoBot
Create hunting rule
Status:
Malicious
First seen:
2021-06-10 03:56:26 UTC
File Type:
PE (.Net Exe)
Extracted files:
4
AV detection:
27 of 46 (58.70%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=owzggp3vr7s562ksexyrdxk3as54c5jqmk7fitboef6k2ke6dxpq._file
Result
Malware family:
nanocore
Create hunting rule
Score:
  10/10
Tags:
family:nanocore evasion keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/210613-nhc4z9rqnj/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Drops file in Program Files directory
Suspicious use of SetThreadContext
Adds Run key to start application
Checks whether UAC is enabled
NanoCore
Malware Config
C2 Extraction:
136.144.41.4:4991
127.0.0.1:4991
Unpacked files
SH256 hash:
3fe966e21625f83eccdcc49762305a16e6c488397b4e08a98e1be48d93c3a571
MD5 hash:
884c22791622cbd6edc8ad0dfcea87f2
SHA1 hash:
8b2b539c86f49597a05a289fda4ac27b2fd1c177
Link:
https://www.unpac.me/results/947f0c98-5972-4248-bb58-04af77037b0b/
Parent samples :
fb50faa852bc2917ace3552b02c754c91872d0892e247f51a1e48336e598d6ef
6f97024532dc240921683a3769cb317aefc60bf89c8916b01e80a804675f7487
8e36d4f98a882487bedbedf73cbb010f793c7bb529d133a58673a14850198f9f
SH256 hash:
0b222e1426568741949e173657a15a252815b688e0a6ebcec419e31c987dec71
MD5 hash:
f9d627284cf2eb86f286e32a607d5317
SHA1 hash:
15d4c053e4b5ad2b2515d4799cc52a3e1979e7a0
Detections:
win_nanocore_w0
Create hunting rule
Link:
https://www.unpac.me/results/947f0c98-5972-4248-bb58-04af77037b0b/
SH256 hash:
75b2633f758fe5df695225f111dd5b04bbc1753062be544c2e217cad289e1ddf
MD5 hash:
0b1d339690aa42985c82aa77b266d6f6
SHA1 hash:
878188ae46ffdde9f0502e38d60f493d608496f4
Link:
https://www.unpac.me/results/947f0c98-5972-4248-bb58-04af77037b0b/
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/75b2633f758fe5df695225f111dd5b04bbc1753062be544c2e217cad289e1ddf

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:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFu
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

Web download

NanoCore

Executable exe 75b2633f758fe5df695225f111dd5b04bbc1753062be544c2e217cad289e1ddf

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/1361328/

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