MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 af66baeaeaf66b03d22bfba26cfaff343489fdf3eccb9e6078017c93fd6155c5. 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: 13


Intelligence 13 IOCs YARA 2 File information Comments

SHA256 hash: af66baeaeaf66b03d22bfba26cfaff343489fdf3eccb9e6078017c93fd6155c5
SHA3-384 hash: 12e869f4e2a40888fcf37460502542ca54d071dda2dc298785edf4e361b07161a370684a07863a7553c3da532ab19493
SHA1 hash: f790e60e1a48a0faf5c311ee8c882f6d08653490
MD5 hash: fc38c021fb2a8c4d49b9f3e3fd91b03b
humanhash: victor-yellow-jig-nevada
File name:fc38c021fb2a8c4d49b9f3e3fd91b03b.exe
Download: download sample
Signature NanoCore
File size:977'920 bytes
First seen:2022-05-10 11:29:23 UTC
Last seen:2022-05-10 12:52:13 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 12288:2TcmYDfxt7J0Acp6R8gNtyRAtwPYbfxueUdzWNGpfaz6LSTL:2K2yQdmJueQUoLS
Threatray 5'082 similar samples on MalwareBazaar
TLSH T186259D1072D8EE99E02912B1D875C5F00731BE09D5B6D60F29997ECE38B33836566F2B
TrID 54.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
23.2% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
7.8% (.EXE) Win64 Executable (generic) (10523/12/4)
4.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.3% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon f26efec4b6c2c00c (24 x AgentTesla, 14 x Loki, 12 x Formbook)
Reporter abuse_ch
Tags:exe NanoCore RAT

Intelligence


File Origin
# of uploads :
2
# of downloads :
315
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
nanocore
ID:
1
File name:
fc38c021fb2a8c4d49b9f3e3fd91b03b.exe
Verdict:
Malicious activity
Analysis date:
2022-05-10 21:01:51 UTC
Tags:
rat nanocore

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

Behaviour
Creating a window
Sending a custom TCP request
Launching a process
Creating a process with a hidden window
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
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.
Result
Threat name:
Nanocore
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Antivirus detection for URL or domain
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)
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
Sigma detected: NanoCore
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected Nanocore RAT
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Spyware.Negasteal
Status:
Malicious
First seen:
2022-05-10 11:30:10 UTC
File Type:
PE (.Net Exe)
Extracted files:
38
AV detection:
18 of 26 (69.23%)
Threat level:
  2/5
Result
Malware family:
nanocore
Score:
  10/10
Tags:
family:nanocore evasion keylogger spyware stealer suricata trojan
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks whether UAC is enabled
Checks computer location settings
NanoCore
suricata: ET MALWARE Possible NanoCore C2 60B
Malware Config
C2 Extraction:
91.193.75.221:4040
Unpacked files
SH256 hash:
9733423b2797d5e1ffc16fc5c1df522b709ad6ba25714021456441fe7bdd7ae8
MD5 hash:
7322ae66dce19df036432b5d6afe9297
SHA1 hash:
ef7a7cac65857c565482b6e09f6740efd14564ab
SH256 hash:
551e0cc1d57bba6cb7b2c709ba0d9dd100e9fb0b6f1dcda7a363c2606c1d911f
MD5 hash:
983460a50773650ec210a294f9a6af6e
SHA1 hash:
edb21c0a3b28e1f997cdf4af94e43e2ba46ac2c2
Detections:
win_nanocore_w0
SH256 hash:
ed82f07dc34faf1eb645d4ed4c4d72d9df7b5c6011562dba29f0230764b73b04
MD5 hash:
4638c04593683936a97cb01a050b5aec
SHA1 hash:
dcc7a7addd08aff34a3ce2930dc03245e85eebe0
SH256 hash:
78cf43f09812b529b2207dbc1e9d854dacbaf16b3441e5ad053bfa6d2a6462e1
MD5 hash:
1431e943b494fe47ae07893bc76a68f6
SHA1 hash:
5a5c6dc4249e4d6bef427fce1347c29239a72f20
SH256 hash:
af66baeaeaf66b03d22bfba26cfaff343489fdf3eccb9e6078017c93fd6155c5
MD5 hash:
fc38c021fb2a8c4d49b9f3e3fd91b03b
SHA1 hash:
f790e60e1a48a0faf5c311ee8c882f6d08653490
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:pe_imphash
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash

File information


The table below shows additional information about this malware sample such as delivery method and external references.

Web download

NanoCore

Executable exe af66baeaeaf66b03d22bfba26cfaff343489fdf3eccb9e6078017c93fd6155c5

(this sample)

  
Delivery method
Distributed via web download

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