MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 5e3140ed7841e6893114a0d4d9c5ee239736449aaba20d2c8939a051e5ef21c5. 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: 9
| SHA256 hash: | 5e3140ed7841e6893114a0d4d9c5ee239736449aaba20d2c8939a051e5ef21c5 |
|---|---|
| SHA3-384 hash: | 407185fdc78454ff55bdd6d6a84f461ec314f6119bf1b5d621ac6cd86675970350901a970f4c3183134c69f5070b03d7 |
| SHA1 hash: | d7193dc8395e9b92729e532beefce9451cb09a2c |
| MD5 hash: | 32d6b21c3fe18df44de8a513244fffd7 |
| humanhash: | mountain-magnesium-grey-pip |
| File name: | 6NkUbTVjGQnyaUf.exe |
| Download: | download sample |
| Signature | NanoCore |
| File size: | 414'208 bytes |
| First seen: | 2020-08-05 09:21:21 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'600 x Formbook, 12'241 x SnakeKeylogger) |
| ssdeep | 12288:inRi0WFin0IIuPhHnaoDoQYj4a6qegnQgixyFD462CAfte:ysF6DIu1naaYjB9RiS467E |
| Threatray | 1'430 similar samples on MalwareBazaar |
| TLSH | 6194F11D3690540DF1BA1E3F9C7145838E76F89FDE16D61B2AB21268017F6ACBC60F52 |
| Reporter |  abuse_ch |
| Tags: | exe NanoCore RAT |
abuse_ch
Malspam distributing NanoCore:HELO: server.amcham.or.id
Sending IP: 172.104.32.98
From: no-reply@amcham.or.id
Subject: TT ACH202093880 LLC paid
Attachment: ACH deposit.img (contains "6NkUbTVjGQnyaUf.exe")
Intelligence
File Origin
# of uploads :
1
# of downloads :
98
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Result
Verdict:
Malware
Maliciousness:
Behaviour
Sending a UDP request
Creating a window
Unauthorized injection to a recently created process
Creating a file
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
Deleting a recently created file
Using the Windows Management Instrumentation requests
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Sending a TCP request to an infection source
Enabling autorun by creating a file
Result
Threat name:
Nanocore
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
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
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Sigma detected: NanoCore
Sigma detected: Scheduled temp file as task from temp location
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
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 AntiVM_3
Yara detected Nanocore RAT
Behaviour
Behavior Graph:
Detection:
nanocore
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Status:
Malicious
First seen:
2020-08-05 09:23:04 UTC
AV detection:
25 of 29 (86.21%)
Threat level:
5/5
Detection(s):
Malicious file
Verdict:
malicious
Label(s):
nanocorerat
hawkeyekeylogger
emotet
Similar samples:
+ 1'420 additional samples on MalwareBazaar
Result
Malware family:
nanocore
Score:
10/10
Tags:
persistence spyware evasion trojan keylogger stealer family:nanocore
Behaviour
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious behavior: GetForegroundWindowSpam
Creates scheduled task(s)
Drops file in Program Files directory
Suspicious use of SetThreadContext
Adds Run key to start application
Checks whether UAC is enabled
Uses the VBS compiler for execution
Reads user/profile data of web browsers
NanoCore
Malware Config
C2 Extraction:
185.84.181.89:9083
godrich.duckdns.org:9083
godrich.duckdns.org:9083
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
NanoCore
Score:
1.00
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: | Nanocore |
|---|---|
| Author: | JPCERT/CC Incident Response Group |
| Description: | detect Nanocore in memory |
| Reference: | internal research |
| Rule name: | Nanocore_RAT_Feb18_1 |
|---|---|
| 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: | 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.
Malspam
Delivery method
Distributed via e-mail attachment
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