MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 e924821860bcee2dd1acc0239f6413cd6a677213b640942d271ea12446fc65aa. 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: 10
| SHA256 hash: | e924821860bcee2dd1acc0239f6413cd6a677213b640942d271ea12446fc65aa |
|---|---|
| SHA3-384 hash: | 7f693fd4a2b6695f9de023e9b680bfb9d163402c834f3d610c0f1ff5ed031d1b51df1207ff1b416dd72c02e5192037f1 |
| SHA1 hash: | 5723da682a340e7d3b4fc4a6cc9710875a9a2c2d |
| MD5 hash: | 1e48198d18de6e8843cf04506b41be77 |
| humanhash: | fix-robin-cat-sixteen |
| File name: | tt-copy payment-slip - xlsx download.exe |
| Download: | download sample |
| Signature | NanoCore |
| File size: | 229'376 bytes |
| First seen: | 2020-10-06 06:31:06 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'205 x SnakeKeylogger) |
| ssdeep | 6144:MLV6Bta6dtJmakIM5IpfoSDnkEuCuI1XSs:MLV6Btpmkzf3zkE5uI1XSs |
| Threatray | 1'097 similar samples on MalwareBazaar |
| TLSH | 3C24CF2677A89A2FD2CE8679B012515243B9C2E79CC3F3DA2CD465B39B327E446071D3 |
| Reporter |  abuse_ch |
| Tags: | exe NanoCore RAT |
abuse_ch
Malspam distributing NanoCore:HELO: 100resilientcities.org
Sending IP: 37.49.225.181
From: SF EXPRESS <tet@100resilientcities.org >
Subject: 尊敬的顺丰速运客户： 您好 victim-email
Attachment: tt-copy payment-slip - xlsx download.exe
Intelligence
File Origin
# of uploads :
1
# of downloads :
181
Origin country :
n/a
Vendor Threat Intelligence
Detection:
NanoCore
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a window
Creating a file in the %AppData% subdirectories
Creating a file in the Program Files subdirectories
DNS request
Sending a custom TCP request
Sending a UDP request
Using the Windows Management Instrumentation requests
Deleting a recently created file
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
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
Antivirus detection for dropped file
Detected Nanocore Rat
Executable has a suspicious name (potential lure to open the executable)
Hides that the sample has been downloaded from the Internet (zone.identifier)
Initial sample is a PE file and has a suspicious name
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
Uses dynamic DNS services
Yara detected Nanocore RAT
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Backdoor.NanoCore
Status:
Malicious
First seen:
2020-10-06 04:59:08 UTC
File Type:
PE (.Net Exe)
Extracted files:
8
AV detection:
29 of 29 (100.00%)
Threat level:
5/5
Detection(s):
Malicious file
Verdict:
malicious
Label(s):
nanocorerat
Similar samples:
+ 1'087 additional samples on MalwareBazaar
Result
Malware family:
nanocore
Score:
10/10
Tags:
evasion trojan keylogger stealer spyware family:nanocore persistence
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Drops file in Program Files directory
Adds Run key to start application
Checks whether UAC is enabled
NanoCore
Malware Config
C2 Extraction:
hotwireboxes4.ddns.net:5353
127.0.0.1:5353
127.0.0.1:5353
Unpacked files
SH256 hash:
e924821860bcee2dd1acc0239f6413cd6a677213b640942d271ea12446fc65aa
MD5 hash:
1e48198d18de6e8843cf04506b41be77
SHA1 hash:
5723da682a340e7d3b4fc4a6cc9710875a9a2c2d
Detections:
win_nanocore_w0
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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