MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4c39262cac1e819833eb53966c47bc3a9007c851e49c800704233fb4ebb89593. 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: 17


Intelligence 17 IOCs YARA 13 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4c39262cac1e819833eb53966c47bc3a9007c851e49c800704233fb4ebb89593
SHA3-384 hash: ae1bf5bb3baa2d6dbfacfc2088b8247de3d7af151a8105c89ab1d31bd1d4bd7d3776863a7719e9bcfcd5722150e26e39
SHA1 hash: ce9b1771091c2d9dfb733f6e98cc83110595c30a
MD5 hash: d0731afd0d1842d7a6a8590ae5365dcf
humanhash: steak-pizza-washington-wolfram
File name:RFQ LISTS.exe
Download: download sample
Signature NanoCore
Create hunting rule
File size:319'488 bytes
First seen:2023-06-13 07:30:18 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 6144:XWKhiy7kfS4J8TexrhbbkKD7CpjRPbapgIN5Xli3T1Fuk96nWK7F:dD7kfS4J8TSrhPrWBRPepgI5X0D1Fuki
Threatray 783 similar samples on MalwareBazaar
TLSH T13E64126D57BF2378D8DF1E7EB43365114B3016E1AE23A6273C85701C7487B9AA852CE2
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Reporter abuse_ch
Tags:exe NanoCore RAT


Avatar
abuse_ch
NanoCore C2:
45.137.22.133:5899

Intelligence

File Origin
# of uploads :
1
# of downloads :
376
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
nanocore
Create hunting rule
ID:
1
File name:
RFQ LISTS.exe
Verdict:
Malicious activity
Analysis date:
2023-06-13 07:33:12 UTC
Tags:
nanocore rat
Link:
https://app.any.run/tasks/417ed97a-dfbd-4d3d-bb1b-b1ecc9f3487c

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/398147/
Detection(s):
SecuriteInfo.com.Win32.PWSX-gen.17458.3448.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Unauthorized injection to a recently created process
Creating a file
Creating a window
Сreating synchronization primitives
Creating a file in the %AppData% subdirectories
Creating a file in the Program Files subdirectories
Creating a file in the %temp% directory
Launching a process
DNS request
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
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/64881b3608b287b7595b611d/reports/69fd81d8-2ada-4051-b636-61f799355cf2/overview
Verdict:
Malicious
Labled as:
MSIL/Kryptik_AGeneric.AWU trojan
Link:
https://www.hybrid-analysis.com/sample/4c39262cac1e819833eb53966c47bc3a9007c851e49c800704233fb4ebb89593
Result
Verdict:
UNKNOWN
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:
NanoCoreRAT
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/8897d915-ec6e-46b5-ba99-1b306a489226
Result
Threat name:
Nanocore
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1253415
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 domain / URL
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
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 signatures2 2 Behavior Graph ID: 886435 Sample: RFQ_LISTS.exe Startdate: 13/06/2023 Architecture: WINDOWS Score: 100 58 Snort IDS alert for network traffic 2->58 60 Multi AV Scanner detection for domain / URL 2->60 62 Found malware configuration 2->62 64 14 other signatures 2->64 9 RFQ_LISTS.exe 3 2->9         started        13 dhcpmon.exe 2 2->13         started        15 RFQ_LISTS.exe 2 2->15         started        17 dhcpmon.exe 3 2->17         started        process3 file4 52 C:\Users\user\AppData\...\RFQ_LISTS.exe.log, ASCII 9->52 dropped 68 Uses schtasks.exe or at.exe to add and modify task schedules 9->68 19 RFQ_LISTS.exe 1 15 9->19         started        24 dhcpmon.exe 2 13->24         started        26 dhcpmon.exe 13->26         started        28 RFQ_LISTS.exe 2 15->28         started        30 RFQ_LISTS.exe 15->30         started        32 dhcpmon.exe 2 17->32         started        signatures5 process6 dnsIp7 54 ucnano180523.ddns.net 45.137.22.133, 49697, 49698, 49699 ROOTLAYERNETNL Netherlands 19->54 56 192.168.2.1 unknown unknown 19->56 44 C:\Program Files (x86)\...\dhcpmon.exe, PE32 19->44 dropped 46 C:\Users\user\AppData\Roaming\...\run.dat, ISO-8859 19->46 dropped 48 C:\Users\user\AppData\Local\...\tmp59FD.tmp, XML 19->48 dropped 50 C:\...\dhcpmon.exe:Zone.Identifier, ASCII 19->50 dropped 66 Hides that the sample has been downloaded from the Internet (zone.identifier) 19->66 34 schtasks.exe 1 19->34         started        36 schtasks.exe 1 19->36         started        file8 signatures9 process10 process11 38 conhost.exe 34->38         started        40 conhost.exe 36->40         started        process12 42 conhost.exe 38->42         started       
Detection:
nanocore
Create hunting rule
Link:
https://mwdb.cert.pl/sample/4c39262cac1e819833eb53966c47bc3a9007c851e49c800704233fb4ebb89593/
Threat name:
Win32.Trojan.Leonem
Create hunting rule
Status:
Malicious
First seen:
2023-06-13 06:35:44 UTC
File Type:
PE (.Net Exe)
Extracted files:
3
AV detection:
22 of 24 (91.67%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=jq4smlfmd2azqm7lkolgyr54hkiapscr4soiabyeem73j25yswjq._file
Verdict:
malicious
Label(s):
nanocorerat
Create hunting rule
Similar samples:
0fd7a9db6576b36e8b213ea47d5f27b3c976df30ef99c481a09bfda3ff4236c0
NanoCore
239ec3bfd566b2e7c09a16c28997aac2ddaad1c717baa23b2f22e5e212ac9c00
NanoCore
3958c096f9bae8e96033422b4a3a7eaae19b1fbbeb0dec5c131954dd0042d9e9
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45272694709263868523b77d0561757378cc2e8aa7d64c7ed21deaacbdf88b5b
NanoCore
6f5e85426d9ed199da9806bfae8480e3d44d0243c9153ae5c0fa9764c3fef90a
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862965d573744607a29489905cfc8abdd8f187874d476ef4263eee7e5175630a
NanoCore
9c997bb5941de96a571243b7621bf577514cdc9818eb79b1116601fc31f3a17b
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c2fed3fc8ca8e6b37a62f9cc8553d6d84da928bb905b28ae4fdd03e20aea47e6
NanoCore
+ 773 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/230613-jcc9dsfd47/
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:
ucnano180523.ddns.net:5899
Unpacked files
SH256 hash:
626599eead5e0f1dae1c59b3d80eb9f85b191a792b746f329a34de3e46a15202
MD5 hash:
ea4ba511049f6a2c6b3a9599df150523
SHA1 hash:
e5cf5229f6c050db2f03a0c02c9fdc1e80d34423
Detections:
win_nanocore_w0
Create hunting rule
Link:
https://www.unpac.me/results/989cff4d-8a42-4f45-af01-ea17902968d9/
Parent samples :
0491bc38e6e0832364a57ee8264c6e7ae42ba800abe522292c8b3c35c1df44d2
8f76e7c72e17763b750529f776a68ad05e86a6dd3a06374b2acd8d7e4821374b
4c39262cac1e819833eb53966c47bc3a9007c851e49c800704233fb4ebb89593
7ac86b5adb380a31243a480d2665b4b7b78ea177a824bbcfbf785fc7b34acb71
SH256 hash:
a440b5929848e6071f401a94fc1a040f14094bf7701b151ff409aeaa60e05f95
MD5 hash:
909be53831182d523ccea3c428d59c4f
SHA1 hash:
8f8f99a97544638bdfc02b5f8054f833f46eccaa
Link:
https://www.unpac.me/results/989cff4d-8a42-4f45-af01-ea17902968d9/
SH256 hash:
39a334a15e62d9eeb9097847811bbf3bc501adf5c05eb83e0967f377103d9f75
MD5 hash:
1d8bd360568b524d12a6557dee366bd0
SHA1 hash:
425a8230a4d827e9689408cbbe49b2c19cbe14dd
Link:
https://www.unpac.me/results/989cff4d-8a42-4f45-af01-ea17902968d9/
SH256 hash:
4c39262cac1e819833eb53966c47bc3a9007c851e49c800704233fb4ebb89593
MD5 hash:
d0731afd0d1842d7a6a8590ae5365dcf
SHA1 hash:
ce9b1771091c2d9dfb733f6e98cc83110595c30a
Link:
https://www.unpac.me/results/989cff4d-8a42-4f45-af01-ea17902968d9/
Malware family:
NanoCore
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/4c39262cac1e/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
iSpy Keylogger
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/4c39262cac1e819833eb53966c47bc3a9007c851e49c800704233fb4ebb89593

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:malware_Nanocore_strings
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Nanocore in memory
Reference:internal research
Rule name:MALWARE_Win_NanoCore
Create hunting rule
Author:ditekSHen
Description:Detects NanoCore
Rule name:nanocore_rat
Create hunting rule
Author:jeFF0Falltrades
Rule name:Nanocore_RAT_Feb18_1
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects Nanocore RAT
Reference:Internal Research - T2T
Rule name:Nanocore_RAT_Feb18_1_RID2DF1
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 (Nextron Systems)
Description:Detetcs the Nanocore RAT
Reference:https://www.sentinelone.com/blogs/teaching-an-old-rat-new-tricks/
Rule name:Nanocore_RAT_Gen_2_RID2D96
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:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:Windows_Trojan_Nanocore_d8c4e3c5
Create hunting rule
Author:Elastic Security
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/398147/

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