MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 40fe69be55041a8607bf2596d0fa649ab26f6d6bd6973fb955f14f4e8a066b6c. 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: | 40fe69be55041a8607bf2596d0fa649ab26f6d6bd6973fb955f14f4e8a066b6c |
|---|---|
| SHA3-384 hash: | 14727dacf7134c5f1766fe8d261111d9c0150f504120a0c0e98819698abc9783bc1369932747e6aae501746715319cce |
| SHA1 hash: | 8a2fc9e82c11d234e74846451b12c73d69dea955 |
| MD5 hash: | e2e26573196fd444c8845d29e73a6b00 |
| humanhash: | one-three-burger-cup |
| File name: | Receipt#502.exe |
| Download: | download sample |
| Signature | NanoCore |
| File size: | 696'832 bytes |
| First seen: | 2020-11-26 06:39:48 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'607 x Formbook, 12'242 x SnakeKeylogger) |
| ssdeep | 12288:lb4JO3lL2iNNOhnc4PrvIpMdd2lBKiIQulBt8LFSERr:lb4JO3lL1XWHv9dd2lEiIQ0P88E |
| Threatray | 1'355 similar samples on MalwareBazaar |
| TLSH | 9AE4ADB164D8AA55F5FF067F8CD251143E2C2C8F796AD07A24B731AD50E3324E93893A |
| Reporter |  abuse_ch |
| Tags: | exe NanoCore nVpn RAT |
abuse_ch
Malspam distributing NanoCore:HELO: server.example.com
Sending IP: 168.235.82.238
From: Sales <admin@getemails.press>
Reply-To: kevindazey129@gmail.com
Subject: Receipt for your purchases today
Attachment: Receipt502.img (contains "Receipt#502.exe")
NanoCore RAT C2:
without.duckdns.org:2078 (185.244.30.221)
Pointing to nVpn:
% Information related to '185.244.30.0 - 185.244.30.255'
% Abuse contact for '185.244.30.0 - 185.244.30.255' is 'abuse@privacyfirst.sh'
inetnum: 185.244.30.0 - 185.244.30.255
remarks: This prefix is assigned to The PRIVACYFIRST Project, which
remarks: operates infrastructure jointly used by various VPN service
remarks: providers. We have a very strong focus on privacy and freedom.
remarks: In case of abuse, we encourage all international law enforcement
remarks: agencies to get in touch with our abuse contact. Due to the fact
remarks: that we keep no logs of user activities and only share data when
remarks: it is legally required under our jurisdiction, it is very unlikely
remarks: for a demand of user information to be successful. Still, that
remarks: should not deter you from reaching out.
netname: PRIVACYFIRST-HU
country: HU
admin-c: TPP15-RIPE
tech-c: TPP15-RIPE
org: ORG-TPP6-RIPE
status: ASSIGNED PA
mnt-by: PRIVACYFIRST-MNT
created: 2019-10-29T14:10:27Z
last-modified: 2020-10-07T21:39:48Z
source: RIPE
Intelligence
File Origin
# of uploads :
1
# of downloads :
209
Origin country :
n/a
Vendor Threat Intelligence
Gathering data
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
DNS request
Using the Windows Management Instrumentation requests
Sending a TCP request to an infection source
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
.NET source code contains potential unpacker
Allocates memory in foreign processes
Detected Nanocore Rat
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
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
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 dynamic DNS services
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected AntiVM_3
Yara detected Nanocore RAT
Behaviour
Behavior Graph:
Detection:
nanocore
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2020-11-26 06:40:07 UTC
File Type:
PE (.Net Exe)
Extracted files:
25
AV detection:
25 of 29 (86.21%)
Threat level:
5/5
Detection(s):
Malicious file
Verdict:
malicious
Label(s):
nanocorerat
Similar samples:
+ 1'345 additional samples on MalwareBazaar
Result
Malware family:
nanocore
Score:
10/10
Tags:
family:nanocore keylogger spyware stealer trojan
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
NanoCore
Malware Config
C2 Extraction:
without.duckdns.org:2078
Unpacked files
SH256 hash:
40fe69be55041a8607bf2596d0fa649ab26f6d6bd6973fb955f14f4e8a066b6c
MD5 hash:
e2e26573196fd444c8845d29e73a6b00
SHA1 hash:
8a2fc9e82c11d234e74846451b12c73d69dea955
SH256 hash:
cbbaa8a9f282bae1c0fd7f1252f4c5545071d8d9e92ccccb79abeaf3cbfb8c29
MD5 hash:
205dc478c12f43b847a0b09ba4702274
SHA1 hash:
786ae83ab514e53beca66ffe1c161713ae21a989
SH256 hash:
cb951f1d2b5460456aad0d89cef1216d9be5e51784d11a92447d43e96177bd5e
MD5 hash:
8cd5d2014866f4ef60802ff1826998a6
SHA1 hash:
8ff75946905d0b117080cc5a07e6e0bbea4e9bbd
SH256 hash:
34d0c1db3edeb605e571dd9c7054d59c83541f74c2d8a2953d9e4811f7c0944c
MD5 hash:
51457e42920e7421c81091fed673ed8b
SHA1 hash:
c008db2c6923e2b512e10a235cdc41dc54f3f40d
Detections:
win_nanocore_w0
Malware family:
NanoCore
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
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 |
|---|---|
| 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.
Malspam
Delivery method
Distributed via e-mail attachment
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