MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 872c28c64fee737281eafcab48dcfe643387a281048f1ad5b98e9579aa80daed. 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: 11


Intelligence 11 IOCs 1 YARA 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 872c28c64fee737281eafcab48dcfe643387a281048f1ad5b98e9579aa80daed
SHA3-384 hash: a7731e71233aef59faeaacf7b9c5623a33961cbcaac537e770c2161ef5bf3fccd5de82709567a2991c68bb1d303b9975
SHA1 hash: a42db1a55fbd07a92671e4daa424abae804b0663
MD5 hash: 1787fd18cbdbd31971e9da27e7c40012
humanhash: uncle-delta-stairway-single
File name:Invoice & BACS Documen.exe
Download: download sample
Signature NanoCore
Create hunting rule
File size:23'872 bytes
First seen:2021-04-15 17:52:00 UTC
Last seen:2021-04-15 18:54:05 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'748 x AgentTesla, 19'643 x Formbook, 12'245 x SnakeKeylogger)
ssdeep 384:Yvc7nYPt6Irg4mLN7k0rn8cGEGjaNVtZ10WEYE2EDchql:YBzy9k0r1Gjap0r5Lwhql
Threatray 179 similar samples on MalwareBazaar
TLSH 53B23C1AFB844933E42A783912B11D1567B7E6C66965DF2F2F8CD1E0C8073CE5A4C26B
Reporter abuse_ch
Tags:exe NanoCore RAT


Avatar
abuse_ch
NanoCore C2:
185.202.173.221:8080

Indicators Of Compromise (IOCs)

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

IOCThreatFox Reference
185.202.173.221:8080 https://threatfox.abuse.ch/ioc/8636/

Intelligence

File Origin
# of uploads :
2
# of downloads :
127
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Invoice & BACS Documen.exe
Verdict:
Malicious activity
Analysis date:
2021-04-15 18:24:09 UTC
Tags:
trojan dtloader loader nanocore rat
Link:
https://app.any.run/tasks/2246a512-f197-4f4a-a4a7-9208b4193400

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/135322/
Detection(s):
SecuriteInfo.com.Trojan.Win32.Save.a.26200.17722.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
DNS request
Sending an HTTP GET request
Creating a file
Sending a UDP request
Creating a file in the %temp% subdirectories
Creating a process from a recently created file
Creating a process with a hidden window
Launching a service
Deleting a recently created file
Launching a process
Creating a file in the Windows subdirectories
Creating a window
Unauthorized injection to a recently created process
Setting a single autorun event
Blocking the User Account Control
Adding exclusions to Windows Defender
Enabling autorun by creating a file
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.
Result
Threat name:
Nanocore
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/678154
Signature
.NET source code contains potential unpacker
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
Detected Nanocore Rat
Drops executables to the windows directory (C:\Windows) and starts them
Drops PE files to the startup folder
Drops PE files with benign system names
Executable has a suspicious name (potential lure to open the executable)
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
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Protects its processes via BreakOnTermination flag
Sigma detected: NanoCore
Sigma detected: Powershell adding suspicious path to exclusion list
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Tries to delay execution (extensive OutputDebugStringW loop)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Yara detected Nanocore RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 388030 Sample: Invoice & BACS Documen.exe Startdate: 15/04/2021 Architecture: WINDOWS Score: 100 74 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->74 76 Found malware configuration 2->76 78 Malicious sample detected (through community Yara rule) 2->78 80 16 other signatures 2->80 8 Invoice & BACS Documen.exe 24 13 2->8         started        13 svchost.exe 2->13         started        15 svchost.exe 2->15         started        17 8 other processes 2->17 process3 dnsIp4 68 mmwrlridbhmibnr.ml 172.67.220.147, 49704, 80 CLOUDFLARENETUS United States 8->68 70 192.168.2.1 unknown unknown 8->70 52 C:\Windows\Cursors\...\svchost.exe, PE32 8->52 dropped 54 IyRbrOkoaOpjZvPaqY...USmgpNPfKjicjeF.exe, PE32 8->54 dropped 56 C:\Users\...\Invoice & BACS Documen.exe.log, ASCII 8->56 dropped 58 C:\Users\user\AppData\...\AdvancedRun.exe, PE32 8->58 dropped 86 Creates an autostart registry key pointing to binary in C:\Windows 8->86 88 Adds a directory exclusion to Windows Defender 8->88 19 Invoice & BACS Documen.exe 8->19         started        24 IyRbrOkoaOpjZvPaqYLpsILJRBaeJkdUSmgpNPfKjicjeF.exe 8->24         started        26 powershell.exe 5 8->26         started        30 10 other processes 8->30 60 C:\Users\user\AppData\...\AdvancedRun.exe, PE32 13->60 dropped 90 Multi AV Scanner detection for dropped file 13->90 92 Changes security center settings (notifications, updates, antivirus, firewall) 15->92 72 127.0.0.1 unknown unknown 17->72 62 C:\Users\user\AppData\...\AdvancedRun.exe, PE32 17->62 dropped 64 C:\Users\user\AppData\...\AdvancedRun.exe, PE32 17->64 dropped 28 AdvancedRun.exe 17->28         started        file5 signatures6 process7 dnsIp8 66 185.202.173.221, 49720, 49724, 49726 UNREAL-SERVERSUS Netherlands 19->66 46 C:\Program Files (x86)\...\dhcpmon.exe, PE32 19->46 dropped 48 C:\Users\user\AppData\Roaming\...\run.dat, data 19->48 dropped 82 Protects its processes via BreakOnTermination flag 19->82 84 Hides that the sample has been downloaded from the Internet (zone.identifier) 19->84 50 C:\Users\user\AppData\...\AdvancedRun.exe, PE32 24->50 dropped 32 AdvancedRun.exe 24->32         started        34 conhost.exe 26->34         started        36 AdvancedRun.exe 30->36         started        38 conhost.exe 30->38         started        40 conhost.exe 30->40         started        42 5 other processes 30->42 file9 signatures10 process11 process12 44 AdvancedRun.exe 32->44         started       
Detection:
nanocore
Create hunting rule
Link:
https://mwdb.cert.pl/sample/872c28c64fee737281eafcab48dcfe643387a281048f1ad5b98e9579aa80daed/
Threat name:
ByteCode-MSIL.Backdoor.NanoBot
Create hunting rule
Status:
Malicious
First seen:
2021-04-15 16:49:12 UTC
AV detection:
14 of 29 (48.28%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=q4wcrrsp5zzxfapk7svurxh6mqzypiubashrvvnzr2kxtkua3lwq._file
Verdict:
malicious
Similar samples:
0db50b639d859d3ddf9aa74f96d12f7ecb189a0b3006a7ed1cfd73edbc34d220
NanoCore
2e10edfbe7c4a7c9220db55d3c6f921262366908277a5483ff0faf5579e194f4
NanoCore
3f0fa5c8ebb2640afc948bfd5c8bb0ba644222b3bc15c095085d718843d59915
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4f450fcf02d7006fd4fbea8c2cad999397672d44864f1e8c504633ce53c3d53d
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78baec19444d923fde30977dacb85fada9247b9e3ae150f32a1137e7fc0b8dfb
NanoCore
9c6abdf1e5ff719e261ea153555b981cd907ba5f79f50943d679d59967eba445
NanoCore
c3528956666ac901c406c13e9b265cb805424e91919db91a1fe2227ffbc15c7a
NanoCore
ca146513d9ec6ec60b81b20fd9aa2f262c54d447e8361417c3c4b7678e51e6a5
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d71c0ca341da6bc2c2078b5a8af0afc6e5828d3ca0aec5e0e76ab9fb2bcd2f15
NanoCore
e9573722d616d444c71e82f1ac6973921f3c942af4403760e0292b3ebf9159b0
NanoCore
+ 169 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/210415-cz9se1qxk6/
Behaviour
Modifies system certificate store
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
System policy modification
Enumerates physical storage devices
Drops file in Program Files directory
Drops file in Windows directory
Suspicious use of SetThreadContext
Adds Run key to start application
Checks whether UAC is enabled
Drops startup file
Loads dropped DLL
Windows security modification
Executes dropped EXE
Nirsoft
Modifies Windows Defender Real-time Protection settings
NanoCore
Turns off Windows Defender SpyNet reporting
UAC bypass
Windows security bypass
Unpacked files
SH256 hash:
872c28c64fee737281eafcab48dcfe643387a281048f1ad5b98e9579aa80daed
MD5 hash:
1787fd18cbdbd31971e9da27e7c40012
SHA1 hash:
a42db1a55fbd07a92671e4daa424abae804b0663
Link:
https://www.unpac.me/results/61bb158f-83cd-480c-8954-0aa4e458e51c/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.00
Link:
https://yomi.yoroi.company/submissions/872c28c64fee737281eafcab48dcfe643387a281048f1ad5b98e9579aa80daed

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_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: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_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: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/135322/

Comments