MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 a335c9ad21f67b44232a6f31f5605b013167628f63e7e00a3fc840a8ab9afc73. 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: 15
| SHA256 hash: | a335c9ad21f67b44232a6f31f5605b013167628f63e7e00a3fc840a8ab9afc73 |
|---|---|
| SHA3-384 hash: | 31affc0cbf10544e8902f352d925bbf7f4b9e503007002e31383e6cdd55a085c2d8542a683e4d2977556bef9d19906db |
| SHA1 hash: | 24918b78ec2c68569ca9c5236b5f56bc09ea3f48 |
| MD5 hash: | 6e65813ad51126c4fcabcf6ad9267e26 |
| humanhash: | bravo-neptune-stream-october |
| File name: | SOA00291.pdf.exe |
| Download: | download sample |
| Signature | NanoCore |
| File size: | 592'559 bytes |
| First seen: | 2023-10-03 01:00:35 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | 9dda1a1d1f8a1d13ae0297b47046b26e (64 x Formbook, 40 x GuLoader, 25 x RemcosRAT) |
| ssdeep | 12288:6nPdx6ltZqggFJbkdQRYPa1RTwexrKQQaZdV+RzA:GPdx6bozkQOP2c28aZSO |
| Threatray | 1'732 similar samples on MalwareBazaar |
| TLSH | T115C4DF93BA9B8FD7C1E235F3195171DD1AB58C240E51C257A3A07E3CF877B02CA16266 |
| 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): |  |
| dhash icon | 2750d8d4d4789047 (2 x NanoCore, 1 x GuLoader) |
| Reporter |  abuse_ch |
| Tags: | exe NanoCore RAT |
Intelligence
File Origin
# of uploads :
1
# of downloads :
412
Origin country :
NLVendor Threat Intelligence
Detection:
NanoCore
Detection(s):
Result
Verdict:
Malware
Maliciousness:
Behaviour
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
Launching a process
Searching for synchronization primitives
DNS request
Sending a custom TCP request
Using the Windows Management Instrumentation requests
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a recently created process by context flags manipulation
Enabling autorun by creating a file
Gathering data
Verdict:
Malicious
Threat level:
10/10
Confidence:
100%
Tags:
control fareit lolbin masquerade nanocore overlay packed shell32 virus
Verdict:
Malicious
Labled as:
Malware
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.
Malware family:
NanoCoreRAT
Verdict:
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)
Initial sample is a PE file and has a suspicious name
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
Sigma detected: Scheduled temp file as task from temp location
Snort IDS alert for network traffic
Uses an obfuscated file name to hide its real file extension (double extension)
Uses dynamic DNS services
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected Nanocore RAT
Behaviour
Behavior Graph:
Detection:
nanocore
Threat name:
Win32.Trojan.Generic
Status:
Malicious
First seen:
2023-10-03 01:01:06 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
17 of 24 (70.83%)
Threat level:
2/5
Detection(s):
Malicious file
Verdict:
malicious
Label(s):
nanocorerat
Similar samples:
+ 1'722 additional samples on MalwareBazaar
Result
Malware family:
nanocore
Score:
10/10
Tags:
family:nanocore evasion keylogger persistence spyware stealer trojan
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
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:
titus.casacam.net:9036
titus102023.ddns.net:9036
titus102023.ddns.net:9036
Unpacked files
SH256 hash:
45499b2eb6802cea34e6e87c16c2ba7c4b8e5e27cbd336cbcdd59dbb1f5577e2
MD5 hash:
da5469e9e5aa5bd4ae3be7579183cbe7
SHA1 hash:
1c7cb556110da4aa11a0ee3acc9cd46a4a9fc917
SH256 hash:
a335c9ad21f67b44232a6f31f5605b013167628f63e7e00a3fc840a8ab9afc73
MD5 hash:
6e65813ad51126c4fcabcf6ad9267e26
SHA1 hash:
24918b78ec2c68569ca9c5236b5f56bc09ea3f48
Malware family:
NanoCore
Verdict:
Malicious
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: | 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: | 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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