MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 b3278c2b73f1b45d1d440b080dd563191b03794243f1ded305ff62b288accd75. 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: 8
| SHA256 hash: | b3278c2b73f1b45d1d440b080dd563191b03794243f1ded305ff62b288accd75 |
|---|---|
| SHA3-384 hash: | 7df9b84ac162763664e6096291ec1a8b4ffdfda224212bb48c78ee6f9a51ef0bac185610fc61af37a0c817b03af973b9 |
| SHA1 hash: | f6013c4762c6357fb672248ff522625f8548e397 |
| MD5 hash: | 1dfe52d38f7819e0117483241e5d2b43 |
| humanhash: | hamper-wisconsin-nineteen-queen |
| File name: | Purchase order#54.exe |
| Download: | download sample |
| Signature | NanoCore |
| File size: | 576'000 bytes |
| First seen: | 2020-07-30 07:07:30 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger) |
| ssdeep | 12288:NBoTjZWMLryAwFcTy98LpB62HEaw/Au8N8KQ1Hv0yZNSC+XQI2cThd:nOjRbA9OL62HEaw/AZoPlZNGQI2cThd |
| Threatray | 1'087 similar samples on MalwareBazaar |
| TLSH | 57C4C0693784AB5DC16F4E3688520900D7E0EDA70703F78B7CD379DC1D7E699AA32292 |
| Reporter |  abuse_ch |
| Tags: | exe NanoCore nVpn RAT |
abuse_ch
Malspam distributing NanoCore:HELO: cloudhost-150218.us-midwest-1.nxcli.net
Sending IP: 104.207.254.25
From: Mr. Engin TOPTAS <procurement_company@europe.com>
Reply-To: phuong.nguyen2.meiko@gmail.com
Subject: Confirmation of samples
Attachment: Purchase order54.zip (contains "Purchase order#54.exe")
NanoCore RAT C2:
onyekaj.hopto.org:6634 (185.140.53.34)
Pointing to nVpn:
% Information related to '185.140.53.0 - 185.140.53.255'
% Abuse contact for '185.140.53.0 - 185.140.53.255' is 'abuse@privacyfirst.sh'
inetnum: 185.140.53.0 - 185.140.53.255
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-EU3
country: EU
admin-c: TPP15-RIPE
tech-c: TPP15-RIPE
org: ORG-TPP6-RIPE
status: ASSIGNED PA
mnt-by: PRIVACYFIRST-MNT
created: 2016-10-17T23:24:00Z
last-modified: 2020-07-28T20:56:03Z
source: RIPE
Intelligence
File Origin
# of uploads :
1
# of downloads :
77
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Detection(s):
Result
Verdict:
Malware
Maliciousness:
Behaviour
Sending a custom TCP request
Creating a window
Launching a process
Creating a process with a hidden window
Result
Threat name:
Nanocore
Detection:
malicious
Classification:
troj.evad
Score:
92 / 100
Signature
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)
Sigma detected: Scheduled temp file as task from temp location
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM_3
Yara detected Nanocore RAT
Behaviour
Behavior Graph:
Detection:
nanocore
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2020-07-30 07:09:06 UTC
AV detection:
22 of 29 (75.86%)
Threat level:
5/5
Detection(s):
Malicious file
Verdict:
malicious
Label(s):
nanocorerat
Similar samples:
+ 1'077 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
3/10
Tags:
n/a
Behaviour
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Creates scheduled task(s)
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Program crash
Uses the VBS compiler for execution
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: | 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
Comments
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