MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3ac127779fcb64fd5737330bc7a1e2338794cfc7c690eb01e294be6ba99f5780. 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: 10


Intelligence 10 IOCs YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 3ac127779fcb64fd5737330bc7a1e2338794cfc7c690eb01e294be6ba99f5780
SHA3-384 hash: 969437451c417f004cffbd28d92fe937ccd1e008328e18e1302b86cc2ba327829a4fbc6143bece2d1ca919fc25416102
SHA1 hash: 43b4ddbaf261ca13a3950aaefe86d1b58dcc81f2
MD5 hash: 35d1d7df509d9ab6fc0d937667d67cc2
humanhash: iowa-violet-oregon-fanta
File name:35d1d7df509d9ab6fc0d937667d67cc2.exe
Download: download sample
Signature NanoCore
Create hunting rule
File size:1'325'568 bytes
First seen:2021-03-04 10:21:44 UTC
Last seen:2022-01-21 03:53:52 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'665 x AgentTesla, 19'478 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 24576:+i73KSE7qMKCX0SY/Kw2P55Iv/ekreHcj:Xz/UY/K9PQWk68
Threatray 1'627 similar samples on MalwareBazaar
TLSH 51557C2526D46A08F17EAB318BF40965D3F8A901E753EB9D7CC290D61EB2F11EF07522
Reporter abuse_ch
Tags:exe mansengco778-ddns-net NanoCore RAT

Intelligence

File Origin
# of uploads :
3
# of downloads :
213
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
35d1d7df509d9ab6fc0d937667d67cc2.exe
Verdict:
Malicious activity
Analysis date:
2021-03-04 10:24:09 UTC
Tags:
rat nanocore
Link:
https://app.any.run/tasks/ecde13a6-a96d-4ee7-812f-2b9e9cf375b2

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/122255/
Detection(s):
SecuriteInfo.com.Trojan.Win32.Save.a.27059.5045.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
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/628532
Signature
.NET source code contains potential unpacker
.NET source code contains very large strings
Allocates memory in foreign processes
C2 URLs / IPs found in malware configuration
Connects to many ports of the same IP (likely port scanning)
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
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: Scheduled temp file as task from temp location
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses dynamic DNS services
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected AntiVM_3
Yara detected Nanocore RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 363243 Sample: Ixli7b5j6A.exe Startdate: 04/03/2021 Architecture: WINDOWS Score: 100 57 Found malware configuration 2->57 59 Malicious sample detected (through community Yara rule) 2->59 61 Multi AV Scanner detection for dropped file 2->61 63 13 other signatures 2->63 8 Ixli7b5j6A.exe 7 2->8         started        12 RegSvcs.exe 4 2->12         started        14 dhcpmon.exe 4 2->14         started        16 dhcpmon.exe 3 2->16         started        process3 file4 47 C:\Users\user\AppData\Roaming\uNAgrXSF.exe, PE32 8->47 dropped 49 C:\Users\user\AppData\Local\...\tmp8066.tmp, XML 8->49 dropped 51 C:\Users\user\AppData\...\Ixli7b5j6A.exe.log, ASCII 8->51 dropped 69 Writes to foreign memory regions 8->69 71 Allocates memory in foreign processes 8->71 73 Injects a PE file into a foreign processes 8->73 18 RegSvcs.exe 1 13 8->18         started        23 schtasks.exe 1 8->23         started        25 RegSvcs.exe 8->25         started        27 conhost.exe 12->27         started        29 conhost.exe 14->29         started        31 conhost.exe 16->31         started        signatures5 process6 dnsIp7 53 mansengco778.ddns.net 105.112.106.26, 19864 VNL1-ASNG Nigeria 18->53 55 newcracker.duckdns.org 18->55 43 C:\Users\user\AppData\Roaming\...\run.dat, data 18->43 dropped 45 C:\Program Files (x86)\...\dhcpmon.exe, PE32 18->45 dropped 65 Protects its processes via BreakOnTermination flag 18->65 67 Hides that the sample has been downloaded from the Internet (zone.identifier) 18->67 33 schtasks.exe 1 18->33         started        35 schtasks.exe 1 18->35         started        37 conhost.exe 23->37         started        file8 signatures9 process10 process11 39 conhost.exe 33->39         started        41 conhost.exe 35->41         started       
Detection:
nanocore
Create hunting rule
Link:
https://mwdb.cert.pl/sample/3ac127779fcb64fd5737330bc7a1e2338794cfc7c690eb01e294be6ba99f5780/
Threat name:
ByteCode-MSIL.Packed.Generic
Create hunting rule
Status:
Suspicious
First seen:
2021-03-04 10:00:21 UTC
File Type:
PE (.Net Exe)
Extracted files:
47
AV detection:
20 of 47 (42.55%)
Threat level:
  1/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=hlaso547znsp2vzxgmf4pipcgodzjt6hy2iowapcss7gxkm7k6aa._file
Verdict:
malicious
Label(s):
nanocorerat
Create hunting rule
Similar samples:
258856f05819789b47e0bed58b1df479976a355cd30b953b23f9e2f5d286578a
NanoCore
2acf6c2398a12dc97ff2ceec4f348ed6338c4aafb2dcfeb24856cf8526d12a9d
NanoCore
4ab0583ffd51ef40c7531a93f294c16dfbcfaa1daf13835b8bd231c269a780c8
NanoCore
4f0035201ba7a3a536727862b8ac8dbf389038c5af1674ff7a982190fed1e30b
NanoCore
644a0403a3c8254a3846b8c07aa7fdeb2cfe21aa5630ca3100949869f60ae407
NanoCore
6929b80188b24be9a55566485702e061e5ba9ed6631c205d754ad6e3b7cf6008
NanoCore
db591a08743176655e567ddffcbbd79b9e2e31feadc1feb54a0200296a93d53d
NanoCore
e26e07749118e8284c28e50553c62bdbe327234b801ffdf2eedb8663444aa459
NanoCore
f3ac633354efc183e1705dd9e042d39b62208735f6f9e83534fb21c9f32b5d70
NanoCore
f4bf592fde78af7ed0b06166ac8265d7b65a2457b9a61f12c2e3a4fad641ac19
NanoCore
+ 1'617 additional samples on MalwareBazaar
Result
Malware family:
nanocore
Create hunting rule
Score:
  10/10
Tags:
family:nanocore keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/210304-q3bnkmg5ta/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
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
NanoCore
Malware Config
C2 Extraction:
mansengco778.ddns.net:19864
newcracker.duckdns.org:19864
Unpacked files
SH256 hash:
f9d949d2f56c449c5d346bb93ed04d38426f563b022dd179ae330dab46682c3b
MD5 hash:
871e23d748ba756eaab5777708f250f8
SHA1 hash:
c9816d4ab38541aaab9aa3eab7cb4898d0b72e4a
Link:
https://www.unpac.me/results/75ee1ceb-d0d2-4be1-b9d7-facd70cc1a43/
SH256 hash:
3ac127779fcb64fd5737330bc7a1e2338794cfc7c690eb01e294be6ba99f5780
MD5 hash:
35d1d7df509d9ab6fc0d937667d67cc2
SHA1 hash:
43b4ddbaf261ca13a3950aaefe86d1b58dcc81f2
Link:
https://www.unpac.me/results/75ee1ceb-d0d2-4be1-b9d7-facd70cc1a43/
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/3ac127779fcb64fd5737330bc7a1e2338794cfc7c690eb01e294be6ba99f5780

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/122255/

Comments