MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 98fd41a11788741d3e9f41d27b24f1d22d8f1bd81f52cc1619a6442f7355afae. 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: | 98fd41a11788741d3e9f41d27b24f1d22d8f1bd81f52cc1619a6442f7355afae |
|---|---|
| SHA3-384 hash: | 416be437baf639f6cabc33b7841c7a15dcc5740584a3b55d44a4811f2851fe5c9f5d29cdf1c9e8bd56a25de7be995a06 |
| SHA1 hash: | 5427acfc2d76b0cadfa33d64de65d0b3db9a7209 |
| MD5 hash: | fd41269f5759377f4bf983f2c3cbcb15 |
| humanhash: | kitten-foxtrot-winner-whiskey |
| File name: | Doc_1133_06082020.exe |
| Download: | download sample |
| Signature | NanoCore |
| File size: | 849'408 bytes |
| First seen: | 2020-08-06 05:54:12 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | 8a931d7f83c9c7d08c4a1b976892c11f (5 x MassLogger, 4 x Loki, 3 x AgentTesla) |
| ssdeep | 24576:DUE79p4DM3Fn7Cld9GmMEL+Qulmccbjx1L:DUNw35C/J+Q5ccnx1 |
| Threatray | 3'057 similar samples on MalwareBazaar |
| TLSH | DD059E22A2A1443FD3731A785D5B67B4983AFE3129289C462BF51D4C4F376D33A39287 |
| Reporter |  abuse_ch |
| Tags: | exe NanoCore nVpn RAT |
abuse_ch
Malspam distributing NanoCore:HELO: cloud.spring.net.in
Sending IP: 103.127.29.248
From: Mrs Christina Khor <Account1@sendmystuffs.com.sg>
Subject: RE: INTERNATIONAL OFFSHORE SOA FOR JULY 2020
Attachment: Doc_1133_06082020.pdf.zip (contains "Doc_1133_06082020.exe")
NanoCore RAT C2:
darlingtondc.hopto.org:1905 (185.165.153.17)
Pointing to nVpn:
% Information related to '185.165.153.0 - 185.165.153.255'
% Abuse contact for '185.165.153.0 - 185.165.153.255' is 'abuse@privacyfirst.sh'
inetnum: 185.165.153.0 - 185.165.153.255
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-EU2
country: EU
admin-c: TPP15-RIPE
tech-c: TPP15-RIPE
org: ORG-TPP6-RIPE
status: ASSIGNED PA
mnt-by: PRIVACYFIRST-MNT
created: 2019-10-18T12:14:26Z
last-modified: 2020-07-28T20:37:37Z
source: RIPE
Intelligence
File Origin
# of uploads :
1
# of downloads :
99
Origin country :
n/a
Vendor Threat Intelligence
Detection:
NanoCore
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a window
Unauthorized injection to a recently created process
Creating a file in the %AppData% subdirectories
DNS request
Sending a custom TCP request
Sending a UDP request
Using the Windows Management Instrumentation requests
Result
Threat name:
Nanocore
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
Contains functionality to detect sleep reduction / modifications
Detected Nanocore Rat
Detected unpacking (changes PE section rights)
Detected unpacking (creates a PE file in dynamic memory)
Detected unpacking (overwrites its own PE header)
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 sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Sigma detected: NanoCore
Yara detected Nanocore RAT
Behaviour
Behavior Graph:
Detection:
nanocore
Threat name:
Win32.Trojan.FormBook
Status:
Malicious
First seen:
2020-08-06 05:56:07 UTC
AV detection:
24 of 29 (82.76%)
Threat level:
5/5
Detection(s):
Malicious file
Verdict:
malicious
Label(s):
nanocorerat
hawkeyekeylogger
Similar samples:
+ 3'047 additional samples on MalwareBazaar
Result
Malware family:
nanocore
Score:
10/10
Tags:
upx evasion trojan keylogger stealer spyware family:nanocore
Behaviour
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of SetThreadContext
Checks whether UAC is enabled
UPX packed file
NanoCore
Malware Config
C2 Extraction:
darlingtondc.hopto.org:1905
185.165.153.17:1905
185.165.153.17:1905
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
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