MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 12c5688e077824b181e38335ed2d314c7775c5b31012092e717ba7ba952d36c9. 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 1 YARA 12 File information Comments

SHA256 hash: 12c5688e077824b181e38335ed2d314c7775c5b31012092e717ba7ba952d36c9
SHA3-384 hash: c046a2b521ff87e3a6b0f7ca55c98b7f3e01f70b17b0dec861ff40d48ba459a3232159975433aa40e4755b0bd8cdcd3c
SHA1 hash: f28b6e11ef47c15ee939beda3772f1d35357fbf0
MD5 hash: 532dacf2cd445b16dc5d134c3b3b9a44
humanhash: tennessee-jersey-fruit-friend
File name:PO Order.pdf.exe
Download: download sample
Signature NanoCore
File size:352'922 bytes
First seen:2022-10-20 10:38:40 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 56a78d55f3f7af51443e58e0ce2fb5f6 (719 x GuLoader, 451 x Formbook, 295 x Loki)
ssdeep 6144:mbE/HUbBoBFqB8Bm2NHm9SjEtw2G3PMnS3noAwXZaMey1fPWm2pWW7n4CqbRk:mb/BGqBMtg9SEw13PMandwXUyNPF6lnf
Threatray 4'727 similar samples on MalwareBazaar
TLSH T105742230B66044AAD8B25FB59A742BDA5EFB451232A08C9367807D3F7E719809C2F7D1
TrID 48.8% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
16.4% (.EXE) Win64 Executable (generic) (10523/12/4)
10.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.8% (.EXE) Win16 NE executable (generic) (5038/12/1)
7.0% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon b2a89c96a2cada72 (2'283 x Formbook, 981 x Loki, 803 x AgentTesla)
Reporter abuse_ch
Tags:exe NanoCore RAT


Avatar
abuse_ch
NanoCore C2:
194.147.140.103:1122

Indicators Of Compromise (IOCs)


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

IOCThreatFox Reference
194.147.140.103:1122 https://threatfox.abuse.ch/ioc/895129/

Intelligence


File Origin
# of uploads :
1
# of downloads :
313
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
nanocore
ID:
1
File name:
PO Order.pdf.exe
Verdict:
Malicious activity
Analysis date:
2022-10-20 10:42:45 UTC
Tags:
trojan nanocore rat

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a process from a recently created file
Creating a file in the %AppData% subdirectories
Launching the default Windows debugger (dwwin.exe)
Creating a window
Сreating synchronization primitives
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
Unauthorized injection to a recently created process by context flags manipulation
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Behaviour
MalwareBazaar
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
overlay packed shell32.dll
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
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Detected Nanocore Rat
Detected unpacking (creates a PE file in dynamic memory)
Found hidden mapped module (file has been removed from disk)
Hides that the sample has been downloaded from the Internet (zone.identifier)
Initial sample is a PE file and has a suspicious name
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Sigma detected: NanoCore
Snort IDS alert for network traffic
Uses an obfuscated file name to hide its real file extension (double extension)
Uses dynamic DNS services
Yara detected Nanocore RAT
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 726723 Sample: PO Order.pdf.exe Startdate: 20/10/2022 Architecture: WINDOWS Score: 100 48 chibuikelight.ddns.net 2->48 60 Snort IDS alert for network traffic 2->60 62 Malicious sample detected (through community Yara rule) 2->62 64 Antivirus detection for dropped file 2->64 66 9 other signatures 2->66 8 PO Order.pdf.exe 18 2->8         started        11 lrfflxe.exe 1 2->11         started        14 lrfflxe.exe 1 2->14         started        signatures3 process4 file5 40 C:\Users\user\AppData\Local\...\xpgyulgf.exe, PE32 8->40 dropped 16 xpgyulgf.exe 1 3 8->16         started        42 C:\Users\user\AppData\Local\Temp\2F6.tmp, PE32 11->42 dropped 68 Found hidden mapped module (file has been removed from disk) 11->68 70 Maps a DLL or memory area into another process 11->70 20 WerFault.exe 10 11->20         started        23 lrfflxe.exe 3 11->23         started        44 C:\Users\user\AppData\Local\Temp\3030.tmp, PE32 14->44 dropped 25 lrfflxe.exe 2 14->25         started        27 WerFault.exe 10 14->27         started        signatures6 process7 dnsIp8 36 C:\Users\user\AppData\Roaming\...\lrfflxe.exe, PE32 16->36 dropped 38 C:\Users\user\AppData\Local\Temp\5282.tmp, PE32 16->38 dropped 54 Detected unpacking (creates a PE file in dynamic memory) 16->54 56 Found hidden mapped module (file has been removed from disk) 16->56 58 Maps a DLL or memory area into another process 16->58 29 xpgyulgf.exe 9 16->29         started        34 WerFault.exe 23 9 16->34         started        50 192.168.2.1 unknown unknown 20->50 file9 signatures10 process11 dnsIp12 52 chibuikelight.ddns.net 194.147.140.103, 1122, 49695, 49698 PTPEU unknown 29->52 46 C:\Users\user\AppData\Roaming\...\run.dat, Non-ISO 29->46 dropped 72 Hides that the sample has been downloaded from the Internet (zone.identifier) 29->72 file13 signatures14
Threat name:
Win32.Trojan.NSISInject
Status:
Malicious
First seen:
2022-10-20 13:59:38 UTC
File Type:
PE (Exe)
Extracted files:
4
AV detection:
23 of 26 (88.46%)
Threat level:
  5/5
Result
Malware family:
nanocore
Score:
  10/10
Tags:
family:nanocore evasion keylogger persistence spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Suspicious use of SetThreadContext
Adds Run key to start application
Checks whether UAC is enabled
Loads dropped DLL
Executes dropped EXE
NanoCore
Malware Config
C2 Extraction:
chibuikelight.ddns.net:1122
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
4d1c6def4d84e6a179737a86db5af301511b236a3ed10775cd1b04db13e5f3e2
MD5 hash:
3bd88913cff45ef6b5b8c15a174ea0b2
SHA1 hash:
eec4b1a49b0176d9517e511d831a7a1fa5926f5c
Detections:
win_nanocore_w0
SH256 hash:
b7121e62bc28ba82e25cd826b6500ece0cc40b2315e5f4758a6ffc135e3cf10c
MD5 hash:
fe386ade2f43a9518ff4863d53df4ef4
SHA1 hash:
ccac153407521c5d90f24f68dad9fcd5f8bc20f7
Detections:
win_nanocore_w0
SH256 hash:
50d6641bcea26c34b6f8dfbe3780518de13c9f10dfd776224774a9f6b1f92d59
MD5 hash:
e1d08d3966e34ae8e9016603229c311d
SHA1 hash:
34308e175e2b4e98a2e03764de19b3fba136ef9c
SH256 hash:
12c5688e077824b181e38335ed2d314c7775c5b31012092e717ba7ba952d36c9
MD5 hash:
532dacf2cd445b16dc5d134c3b3b9a44
SHA1 hash:
f28b6e11ef47c15ee939beda3772f1d35357fbf0
Please note that we are no longer able to provide a coverage score for Virus Total.

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
Author:abuse.ch
Rule name:cobalt_strike_tmp01925d3f
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
Rule name:malware_Nanocore_strings
Author:JPCERT/CC Incident Response Group
Description:detect Nanocore in memory
Reference:internal research
Rule name:MALWARE_Win_NanoCore
Author:ditekSHen
Description:Detects NanoCore
Rule name:nanocore_rat
Author:jeFF0Falltrades
Rule name:Nanocore_RAT_Feb18_1
Author:Florian Roth
Description:Detects Nanocore RAT
Reference:Internal Research - T2T
Rule name:Nanocore_RAT_Feb18_1_RID2DF1
Author:Florian Roth
Description:Detects Nanocore RAT
Reference:Internal Research - T2T
Rule name:Nanocore_RAT_Gen_2
Author:Florian Roth
Description:Detetcs the Nanocore RAT
Reference:https://www.sentinelone.com/blogs/teaching-an-old-rat-new-tricks/
Rule name:Nanocore_RAT_Gen_2_RID2D96
Author:Florian Roth
Description:Detetcs the Nanocore RAT
Reference:https://www.sentinelone.com/blogs/teaching-an-old-rat-new-tricks/
Rule name:pe_imphash
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash
Rule name:win_nanocore_w0
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.

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