MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5a72ed060f0c04201591256caff85cbdd4060db0cf777707c9347a5c8e0f6bd2. 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 6 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 5a72ed060f0c04201591256caff85cbdd4060db0cf777707c9347a5c8e0f6bd2
SHA3-384 hash: 76a81ed985e3417f12f820336866d07a033b1928a2e22bfbac5b9d824cd232d5fe14d577c8d44950c402975cb0df1928
SHA1 hash: 26fd2a1e9a35acfa74be845e6d9e7fdf29638877
MD5 hash: 087bda2b4760b72aa7e015e6f1f541cc
humanhash: two-lithium-oregon-twenty
File name:087BDA2B4760B72AA7E015E6F1F541CC.exe
Download: download sample
Signature NanoCore
Create hunting rule
File size:749'089 bytes
First seen:2021-04-25 19:55:44 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash ea4e67a31ace1a72683a99b80cf37830 (70 x Formbook, 64 x GuLoader, 54 x Loki)
ssdeep 12288:/q+I0VQJFCivvG1EkAGky991MsH3HPCnb90s:/fIzFjvvGOkARApHfmWs
Threatray 519 similar samples on MalwareBazaar
TLSH D0F45FA932D6D129EFF39F3AC4D40118A590FC53E48A2E25B1BA774622BBF904137753
Reporter abuse_ch
Tags:exe NanoCore RAT


Avatar
abuse_ch
NanoCore C2:
52.168.94.29:8092

Indicators Of Compromise (IOCs)

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

IOCThreatFox Reference
52.168.94.29:8092 https://threatfox.abuse.ch/ioc/8904/

Intelligence

File Origin
# of uploads :
1
# of downloads :
189
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
087BDA2B4760B72AA7E015E6F1F541CC.exe
Verdict:
Malicious activity
Analysis date:
2021-04-25 20:01:37 UTC
Tags:
rat nanocore trojan
Link:
https://app.any.run/tasks/c30ff3f8-eabd-43ee-93c0-b5250210deb7

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/144108/
Detection(s):
SecuriteInfo.com.Troj.Kryptik-VJ-1.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a file
DNS request
Sending a UDP request
Creating a file in the %AppData% subdirectories
Unauthorized injection to a recently created process
Creating a window
Creating a file in the Program Files subdirectories
Launching a process
Deleting a recently created file
Sending a custom TCP request
Using the Windows Management Instrumentation requests
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
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.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/697116
Signature
.NET source code contains potential unpacker
C2 URLs / IPs found in malware configuration
Contains functionality to prevent local Windows debugging
Detected Nanocore Rat
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
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)
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 (e.g. based on Emerging Threat rules)
Uses dynamic DNS services
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected Nanocore RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 397479 Sample: CMEpJtxLhf.exe Startdate: 25/04/2021 Architecture: WINDOWS Score: 100 65 backu4734.duckdns.org 2->65 69 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->69 71 Found malware configuration 2->71 73 Malicious sample detected (through community Yara rule) 2->73 75 14 other signatures 2->75 9 CMEpJtxLhf.exe 1 21 2->9         started        13 CMEpJtxLhf.exe 18 2->13         started        15 dhcpmon.exe 18 2->15         started        17 dhcpmon.exe 18 2->17         started        signatures3 process4 dnsIp5 53 C:\Users\user\AppData\Roaming\...\Charter, PE32 9->53 dropped 55 C:\Users\user\AppData\Local\...\j4whnkpa.dll, PE32 9->55 dropped 79 Detected unpacking (changes PE section rights) 9->79 81 Detected unpacking (overwrites its own PE header) 9->81 83 Uses schtasks.exe or at.exe to add and modify task schedules 9->83 85 Contains functionality to prevent local Windows debugging 9->85 20 CMEpJtxLhf.exe 1 15 9->20         started        57 C:\Users\user\AppData\Local\...\j4whnkpa.dll, PE32 13->57 dropped 87 Maps a DLL or memory area into another process 13->87 25 CMEpJtxLhf.exe 3 13->25         started        27 backgroundTaskHost.exe 56 13->27         started        59 C:\Users\user\AppData\Local\...\j4whnkpa.dll, PE32 15->59 dropped 29 dhcpmon.exe 3 15->29         started        63 192.168.2.1 unknown unknown 17->63 61 C:\Users\user\AppData\Local\...\j4whnkpa.dll, PE32 17->61 dropped 31 dhcpmon.exe 2 17->31         started        file6 signatures7 process8 dnsIp9 67 backu4734.duckdns.org 52.168.94.29, 49742, 49743, 49744 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 20->67 41 C:\Program Files (x86)\...\dhcpmon.exe, PE32 20->41 dropped 43 C:\Users\user\AppData\Roaming\...\run.dat, ISO-8859 20->43 dropped 45 C:\Users\user\AppData\Local\...\tmp3172.tmp, XML 20->45 dropped 47 C:\...\dhcpmon.exe:Zone.Identifier, ASCII 20->47 dropped 77 Hides that the sample has been downloaded from the Internet (zone.identifier) 20->77 33 schtasks.exe 1 20->33         started        35 schtasks.exe 1 20->35         started        49 C:\Users\user\AppData\...\CMEpJtxLhf.exe.log, ASCII 25->49 dropped 51 C:\Users\user\AppData\...\dhcpmon.exe.log, ASCII 29->51 dropped 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/5a72ed060f0c04201591256caff85cbdd4060db0cf777707c9347a5c8e0f6bd2/
Threat name:
Win32.Backdoor.NanoBot
Create hunting rule
Status:
Malicious
First seen:
2021-04-24 03:35:00 UTC
File Type:
PE (Exe)
Extracted files:
4
AV detection:
31 of 47 (65.96%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=ljzo2bqpbqccafmrevwk76c4xxkamdnqz53xob6jgr5fzdqpnpja._file
Verdict:
malicious
Similar samples:
60b6d55beee9f47ef1e04a854c5e985ad5475b84a92e048432ceae4650a9e3e1
NanoCore
6cc2dd1c821a1d47200a054998657e3ddec7bc0cd81e4e4a7edffa3f0f3ca724
NanoCore
7d235a36d469dc104409fa44edb77a3d5a3d7217580f3350a10fb226d9f9ba3b
NanoCore
7ea977d9f961ac08042e890508150c65655800e27be730debca6a5f30ee357f6
NanoCore
8156b58e3c433b45ab29498fe69e2a506167283f9bc09a5310a117a360ba76f0
NanoCore
89a173beec574576632b98017aee8549e88ec2673fd5c3028a74f5ba2d9613b0
NanoCore
b03f6bc5eec0f24076b3ef2c761b21d75c489ad34c5f94dcffab6d2b4d65263f
NanoCore
ce2ca323cae4838375c60305a3706e6828ab9fd8e30b65b1d0f4c87dbce0f29b
NanoCore
d273cc0da43feffe12b225bd5a7e5942d376296f74cae9fb942240a035e06c6a
NanoCore
e100812a13dcc0b92ee42371dd7b03f674581c41dc3a2c70109acff79333cf30
NanoCore
+ 509 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/210425-95wf1tlb92/
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
NanoCore
Malware Config
C2 Extraction:
backu4734.duckdns.org:8092
Unpacked files
SH256 hash:
5a72ed060f0c04201591256caff85cbdd4060db0cf777707c9347a5c8e0f6bd2
MD5 hash:
087bda2b4760b72aa7e015e6f1f541cc
SHA1 hash:
26fd2a1e9a35acfa74be845e6d9e7fdf29638877
Link:
https://www.unpac.me/results/3555b9da-7598-42a0-8d0b-5eb7f2960fa8/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/5a72ed060f0c04201591256caff85cbdd4060db0cf777707c9347a5c8e0f6bd2

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: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/144108/

Comments


Avatar
a̵c̵c̸i̵d̷e̵n̷t̴a̷l̴r̵e̷b̸e̴l̸ commented on 2021-04-25 20:00:20 UTC

============================================================
MBC behaviors list (github.com/accidentalrebel/mbcscan):
============================================================
0) [C0032.001] Data Micro-objective::CRC32::Checksum
1) [C0026.002] Data Micro-objective::XOR::Encode Data
4) [C0045] File System Micro-objective::Copy File
5) [C0046] File System Micro-objective::Create Directory
6) [C0048] File System Micro-objective::Delete Directory
7) [C0047] File System Micro-objective::Delete File
8) [C0049] File System Micro-objective::Get File Attributes
9) [C0051] File System Micro-objective::Read File
10) [C0050] File System Micro-objective::Set File Attributes
11) [C0052] File System Micro-objective::Writes File
12) [E1510] Impact::Clipboard Modification
13) [C0034.001] Operating System Micro-objective::Set Variable::Environment Variable
14) [C0036.004] Operating System Micro-objective::Create Registry Key::Registry
15) [C0036.002] Operating System Micro-objective::Delete Registry Key::Registry
16) [C0036.007] Operating System Micro-objective::Delete Registry Value::Registry
17) [C0036.003] Operating System Micro-objective::Open Registry Key::Registry
18) [C0036.005] Operating System Micro-objective::Query Registry Key::Registry
19) [C0036.006] Operating System Micro-objective::Query Registry Value::Registry
20) [C0036.001] Operating System Micro-objective::Set Registry Key::Registry
21) [C0017] Process Micro-objective::Create Process
22) [C0038] Process Micro-objective::Create Thread
23) [C0018] Process Micro-objective::Terminate Process