MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 37df56b4f26fcb210022abed5de5698854b8d0504c6305422ee2730ee06ead15. 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: 16


Intelligence 16 IOCs YARA 12 File information Comments

SHA256 hash: 37df56b4f26fcb210022abed5de5698854b8d0504c6305422ee2730ee06ead15
SHA3-384 hash: acd911a95f71fec4e8b4688ea88ba576421187ef1df0db8dfb1de4f71d5a489c8f25b89d26c55993fde881cbcacf990a
SHA1 hash: 23f459e090f237b419b33b331818b17ab805f768
MD5 hash: 4cedeb7f2bbb865949fac916f31ff5c6
humanhash: louisiana-eleven-alpha-may
File name:4cedeb7f2bbb865949fac916f31ff5c6.exe
Download: download sample
Signature NanoCore
File size:207'360 bytes
First seen:2022-09-19 08:20:32 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'648 x AgentTesla, 19'452 x Formbook, 12'201 x SnakeKeylogger)
ssdeep 3072:wzEqV6B1jHa6dtJ10jgvzcgi+oG/j9iaMP2s/HI4jT9cx77B7aqetQ0XdeMBma1K:wLV6Bta6dtJmakIM5ox79PEQ8QVP3
Threatray 4'654 similar samples on MalwareBazaar
TLSH T19E14BF5677A84A2FE2DE8679612252028339C2E3A8C3F3DF28D455B75F667E4060B1D3
TrID 69.0% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.9% (.EXE) Win64 Executable (generic) (10523/12/4)
6.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.7% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.2% (.EXE) Win32 Executable (generic) (4505/5/1)
Reporter abuse_ch
Tags:exe NanoCore

Intelligence


File Origin
# of uploads :
1
# of downloads :
324
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
nanocore
ID:
1
File name:
4cedeb7f2bbb865949fac916f31ff5c6.exe
Verdict:
Malicious activity
Analysis date:
2022-09-19 08:24:57 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 window
Launching a process
Searching for the window
Сreating synchronization primitives
Creating a file in the %AppData% subdirectories
Searching for synchronization primitives
DNS request
Sending a custom TCP request
Using the Windows Management Instrumentation requests
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
nancrat nanocore obfuscated packed rat schtasks.exe windows
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
Hides that the sample has been downloaded from the Internet (zone.identifier)
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Sigma detected: NanoCore
Snort IDS alert for network traffic
Yara detected Nanocore RAT
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Backdoor.NanoCore
Status:
Malicious
First seen:
2022-09-19 04:33:15 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
38 of 40 (95.00%)
Threat level:
  5/5
Result
Malware family:
nanocore
Score:
  10/10
Tags:
family:nanocore evasion keylogger spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Checks whether UAC is enabled
NanoCore
Malware Config
C2 Extraction:
hamzzagolozar.loseyourip.com:14981
Unpacked files
SH256 hash:
37df56b4f26fcb210022abed5de5698854b8d0504c6305422ee2730ee06ead15
MD5 hash:
4cedeb7f2bbb865949fac916f31ff5c6
SHA1 hash:
23f459e090f237b419b33b331818b17ab805f768
Detections:
win_nanocore_w0
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: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:RansomwareTest6
Author:Daoyuan Wu
Description:Test Ransomware YARA rules
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.

Web download

NanoCore

Executable exe 37df56b4f26fcb210022abed5de5698854b8d0504c6305422ee2730ee06ead15

(this sample)

  
Delivery method
Distributed via web download

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