MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 a6477205ef1bd79cf5306cfa59940e34bf328ba2b447697d59d3936449f58ba5. 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: 11
| SHA256 hash: | a6477205ef1bd79cf5306cfa59940e34bf328ba2b447697d59d3936449f58ba5 |
|---|---|
| SHA3-384 hash: | f6f5808f14ef5151bfc8d982dbea546b92cf79f62d4fde8f4f5f75175f424a841ecbb8d7ed9396d18b0a5d76e61beb74 |
| SHA1 hash: | 640326b8b6fc9f0b5504e1e2e2ae961af819b9cc |
| MD5 hash: | b0e73dcfba506ab521b23383e49e778c |
| humanhash: | cold-one-fifteen-violet |
| File name: | 11-10-2020 NEW SPECIF #3309 MCHN.exe |
| Download: | download sample |
| Signature | NanoCore |
| File size: | 207'872 bytes |
| First seen: | 2020-10-15 11:23:38 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'658 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger) |
| ssdeep | 3072:MzEqV6B1jHa6dtJ10jgvzcgi+oG/j9iaMP2s/HIaz41VfR5Ggoru/2wjorkLeG/v:MLV6Bta6dtJmakIM5833G1nGeDTMd |
| Threatray | 1'142 similar samples on MalwareBazaar |
| TLSH | E814C0663BA84A2FD2DE8A79611256139338C2E3D8C3F7DE68D854B35F523E10A071D3 |
| Reporter |  abuse_ch |
| Tags: | exe NanoCore RAT |
abuse_ch
Malspam distributing NanoCore:HELO: gmail.com
Sending IP: 156.96.47.42
From: ACCOUNT PROCUREMENT <mitul1.timurnetwork@gmail.com>
Subject: RE: 11_07_2020 PO_INVOICE #3309247 (REVISED)
Attachment: 11_07_2020 PO_INVOICE 3309247.zip (contains "11-10-2020 NEW SPECIF #3309 MCHN.exe")
NanoCore RAT C2:
sandshoe.myfirewall.org:5654 (156.96.47.42)
Intelligence
File Origin
# of uploads :
1
# of downloads :
100
Origin country :
n/a
Vendor Threat Intelligence
Detection:
NanoCore
Detection(s):
Result
Verdict:
Malware
Maliciousness:
Behaviour
Sending a UDP request
Creating a window
Creating a file in the %AppData% subdirectories
Creating a file in the %temp% directory
Launching a process
Deleting a recently created file
DNS request
Sending a custom TCP request
Using the Windows Management Instrumentation requests
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
Antivirus / Scanner detection for submitted sample
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 submitted file
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)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected Nanocore RAT
Behaviour
Behavior Graph:
Detection:
nanocore
Threat name:
ByteCode-MSIL.Backdoor.NanoCore
Status:
Malicious
First seen:
2020-10-14 23:23:02 UTC
AV detection:
29 of 29 (100.00%)
Threat level:
5/5
Detection(s):
Malicious file
Verdict:
malicious
Label(s):
nanocorerat
Similar samples:
+ 1'132 additional samples on MalwareBazaar
Result
Malware family:
nanocore
Score:
10/10
Tags:
keylogger trojan stealer spyware family:nanocore evasion
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Checks whether UAC is enabled
NanoCore
Malware Config
C2 Extraction:
sandshoe.myfirewall.org:5654
Unpacked files
SH256 hash:
a6477205ef1bd79cf5306cfa59940e34bf328ba2b447697d59d3936449f58ba5
MD5 hash:
b0e73dcfba506ab521b23383e49e778c
SHA1 hash:
640326b8b6fc9f0b5504e1e2e2ae961af819b9cc
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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