MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 02eb438f2b627fcb3a502afd3a4b0f1b0d6f2376ee8279580789b57429f7b1f6. 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 17 File information Comments

SHA256 hash: 02eb438f2b627fcb3a502afd3a4b0f1b0d6f2376ee8279580789b57429f7b1f6
SHA3-384 hash: ec269cda36fd1483d2f58ec53b45eb3aa0be4aa8fe1e720a68e7ffff2c37f516a67e158780b2eb0805274055f1308a03
SHA1 hash: ccc7a7989411b2cbda4f16c5a145ecfc7b1079c4
MD5 hash: 581d9f88bf2bf367e29bab4544111547
humanhash: table-table-lion-summer
File name:F09865480 (1).exe
Download: download sample
Signature NanoCore
File size:630'451 bytes
First seen:2023-09-18 07:50:22 UTC
Last seen:2023-09-18 08:38:21 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 61259b55b8912888e90f516ca08dc514 (1'059 x Formbook, 741 x AgentTesla, 431 x GuLoader)
ssdeep 12288:VYLW0hOVA9kF5dS4jDiyWiS0FLC+xrb1k65yNZ09:VYphOVdF5IAFS5+ZbkZ09
Threatray 823 similar samples on MalwareBazaar
TLSH T1F5D4E0D1F12045DDEC6A0772642B1CA259932CBEE5B8D24D70F573227BF7263402E66B
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10523/12/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon 068f0b2a2b363f06 (19 x SnakeKeylogger, 8 x AgentTesla, 8 x MassLogger)
Reporter abuse_ch
Tags:exe NanoCore RAT


Avatar
abuse_ch
NanoCore C2:
79.110.62.170:4445

Intelligence


File Origin
# of uploads :
2
# of downloads :
368
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
nanocore
ID:
1
File name:
F09865480 (1).exe
Verdict:
Malicious activity
Analysis date:
2023-09-18 10:55:58 UTC
Tags:
nanocore rat remote

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

Behaviour
Searching for the window
Creating a file in the %temp% directory
Creating a window
Creating a process from a recently created file
Creating a file in the %AppData% subdirectories
Сreating synchronization primitives
Creating a file in the Program Files subdirectories
Searching for synchronization primitives
Sending a custom TCP request
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a recently created process by context flags manipulation
Gathering data
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
control lolbin overlay packed shell32
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 / Scanner detection for submitted sample
C2 URLs / IPs found in malware configuration
Detected Nanocore Rat
Detected unpacking (creates a PE file in dynamic memory)
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Icon mismatch, binary includes an icon from a different legit application in order to fool users
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
Snort IDS alert for network traffic
Yara detected Nanocore RAT
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1309845 Sample: F09865480_(1).exe Startdate: 18/09/2023 Architecture: WINDOWS Score: 100 49 Snort IDS alert for network traffic 2->49 51 Found malware configuration 2->51 53 Malicious sample detected (through community Yara rule) 2->53 55 13 other signatures 2->55 8 F09865480_(1).exe 18 2->8         started        11 tdmirnwgcluq.exe 2->11         started        14 dhcpmon.exe 2->14         started        16 tdmirnwgcluq.exe 2->16         started        process3 file4 41 C:\Users\user\AppData\...\cdzezwtdgl.exe, PE32 8->41 dropped 18 cdzezwtdgl.exe 1 2 8->18         started        65 Multi AV Scanner detection for dropped file 11->65 67 Detected Nanocore Rat 11->67 69 Machine Learning detection for dropped file 11->69 71 Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors) 11->71 22 tdmirnwgcluq.exe 3 11->22         started        73 Maps a DLL or memory area into another process 14->73 24 dhcpmon.exe 3 14->24         started        26 tdmirnwgcluq.exe 2 16->26         started        signatures5 process6 file7 39 C:\Users\user\AppData\...\tdmirnwgcluq.exe, PE32 18->39 dropped 57 Multi AV Scanner detection for dropped file 18->57 59 Detected Nanocore Rat 18->59 61 Machine Learning detection for dropped file 18->61 63 2 other signatures 18->63 28 cdzezwtdgl.exe 1 11 18->28         started        33 cdzezwtdgl.exe 18->33         started        35 cdzezwtdgl.exe 18->35         started        signatures8 process9 dnsIp10 47 79.110.62.170, 4445, 49707, 49708 LASOTELFR Germany 28->47 43 C:\Program Files (x86)\...\dhcpmon.exe, PE32 28->43 dropped 45 C:\Users\user\AppData\Roaming\...\run.dat, PGP 28->45 dropped 75 Hides that the sample has been downloaded from the Internet (zone.identifier) 28->75 37 dw20.exe 20 6 28->37         started        file11 signatures12 process13
Threat name:
Win32.Trojan.Nsisx
Status:
Malicious
First seen:
2023-09-18 07:51:08 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
20 of 23 (86.96%)
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 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
Executes dropped EXE
Loads dropped DLL
NanoCore
Malware Config
C2 Extraction:
79.110.62.170:4445
Unpacked files
SH256 hash:
52127f54889e61c4d6bd8043eadb68cc448a351d5214c83b7aed43b2857549ae
MD5 hash:
eb21ea7fe79061a975e17a775f73b64b
SHA1 hash:
e30f6f3bc997a19c47dbe3e26be7a0bf57212c72
Detections:
win_nanocore_w0
SH256 hash:
0f1add8ff7645b4ada844e54262d048195edfdc0461a005ecf77067bec056ea5
MD5 hash:
593b9c50b4128b7d0c3b138d6ed111a9
SHA1 hash:
88749db00be1837adb36d7e68880855df5faca8b
SH256 hash:
02eb438f2b627fcb3a502afd3a4b0f1b0d6f2376ee8279580789b57429f7b1f6
MD5 hash:
581d9f88bf2bf367e29bab4544111547
SHA1 hash:
ccc7a7989411b2cbda4f16c5a145ecfc7b1079c4
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:DebuggerCheck__API
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:maldoc_find_kernel32_base_method_1
Author:Didier Stevens (https://DidierStevens.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 (Nextron Systems)
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 (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
Author:Florian Roth
Description:Detetcs the Nanocore RAT
Reference:https://www.sentinelone.com/blogs/teaching-an-old-rat-new-tricks/
Rule name:NETexecutableMicrosoft
Author:malware-lu
Rule name:pe_imphash
Rule name:shellcode
Author:nex
Description:Matched shellcode byte patterns
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash
Rule name:Windows_Trojan_Nanocore_d8c4e3c5
Author:Elastic Security
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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