MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 31ba519be2122d5b370fc2a9a779964f9d3c7b7db26a49cb0f7f34063612c00a. 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: 12
| SHA256 hash: | 31ba519be2122d5b370fc2a9a779964f9d3c7b7db26a49cb0f7f34063612c00a |
|---|---|
| SHA3-384 hash: | 8023b46edfc74ab0e3a63af19394d024d87d664511cd03cf3b5d4ccb85a69ee15ae5801c76f49e1cc2c7f11bd4faa452 |
| SHA1 hash: | 00a43608bd1570bb51b55f54edf33fc1d181012e |
| MD5 hash: | c82aae78260a49a2b98d76f5f0edeaa2 |
| humanhash: | sink-glucose-yellow-paris |
| File name: | c82aae78260a49a2b98d76f5f0edeaa2.exe |
| Download: | download sample |
| Signature | NanoCore |
| File size: | 706'560 bytes |
| First seen: | 2021-02-23 17:40:23 UTC |
| Last seen: | 2021-02-23 20:00:28 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger) |
| ssdeep | 12288:mYsIa7EcKNrc7QDlE+5bo1M9AdwqkKnzrLFAdkavqv6IX5:mCa+qMRjbo1M9AZ |
| Threatray | 1'872 similar samples on MalwareBazaar |
| TLSH | 3EE45A7C723074AEC40F887B9964DC2052227826473FA1367B17F15C451E6B2AA5FEAF |
| Reporter |  abuse_ch |
| Tags: | exe NanoCore RAT |
Intelligence
File Origin
# of uploads :
2
# of downloads :
113
Origin country :
n/a
Vendor Threat Intelligence
Detection:
NanoCore
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a window
Sending a UDP request
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Deleting a recently created file
Creating a file
Creating a file in the %AppData% subdirectories
Creating a file in the Program Files subdirectories
Sending a custom TCP request
Using the Windows Management Instrumentation requests
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Enabling autorun by creating a file
Unauthorized injection to a system process
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
Allocates memory in foreign processes
Binary contains a suspicious time stamp
Detected Nanocore Rat
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
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
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)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: NanoCore
Sigma detected: Scheduled temp file as task from temp location
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected Nanocore RAT
Behaviour
Behavior Graph:
Detection:
nanocore
Threat name:
ByteCode-MSIL.Trojan.Strictor
Status:
Malicious
First seen:
2021-02-23 17:12:37 UTC
AV detection:
18 of 29 (62.07%)
Threat level:
5/5
Detection(s):
Malicious file
Verdict:
malicious
Label(s):
nanocorerat
Similar samples:
+ 1'862 additional samples on MalwareBazaar
Result
Malware family:
nanocore
Score:
10/10
Tags:
family:nanocore keylogger persistence spyware stealer trojan
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
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
NanoCore
Malware Config
C2 Extraction:
45.15.143.249:7890
helpout.duckdns.org:7890
helpout.duckdns.org:7890
Unpacked files
SH256 hash:
78005accdd06830d7903e3516431d34d6d003a855f30945f18a30cc3cb4f4d69
MD5 hash:
07c7396c6a11778a86bda32a868345c8
SHA1 hash:
3eeb0780cb9c6031702d2a975e939e0ee74f87d7
SH256 hash:
d36d226da4a43e0a36c40b855f7a0051c209e7b6d4bd13ad36671264d4ea668c
MD5 hash:
e696452ee72857c8f8555a816faf8268
SHA1 hash:
39862506bf24caf2e1abde0c73483a1bf7aa7548
Detections:
win_nanocore_w0
SH256 hash:
f0a09c48af16c079c37ad0914f18897976357981fe5ee6f556ab9f9f70b9a671
MD5 hash:
f984a71581f6da5732110be2a569a392
SHA1 hash:
10de05b6b35fc5dbc00c42d59a4b850bcaae01e6
SH256 hash:
31ba519be2122d5b370fc2a9a779964f9d3c7b7db26a49cb0f7f34063612c00a
MD5 hash:
c82aae78260a49a2b98d76f5f0edeaa2
SHA1 hash:
00a43608bd1570bb51b55f54edf33fc1d181012e
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
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: | INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFu |
|---|---|
| Author: | ditekSHen |
| Description: | Detect executables with stomped PE compilation timestamp that is greater than local current time |
| Rule name: | Nanocore |
|---|---|
| Author: | JPCERT/CC Incident Response Group |
| Description: | detect Nanocore in memory |
| Reference: | internal research |
| 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_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.
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