MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a259ab9f2ce1c874205cd31ac2f4ff924955caf2a81396b400dceb2438ff8921. 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


Intelligence 10 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a259ab9f2ce1c874205cd31ac2f4ff924955caf2a81396b400dceb2438ff8921
SHA3-384 hash: 922a25ff070eb49f5bfb1f62ac4b3bb2a4e3a4469bc7d8c81f328d16e52d2aa86d4797efbe5e689703610a92503cfe4b
SHA1 hash: 7081206bbec2d638ca8e5d38a5a26f840cccb664
MD5 hash: bb38bf6a7c53126ddf8dc2c3b70f7298
humanhash: sad-video-rugby-london
File name:SOA.PDF.exe
Download: download sample
Signature NanoCore
Create hunting rule
File size:1'017'082 bytes
First seen:2020-08-19 14:16:43 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash fcf1390e9ce472c7270447fc5c61a0c1 (863 x DCRat, 118 x NanoCore, 94 x njrat)
ssdeep 24576:BAOcZeJWnvD120VvPGGihuF0Gxg539FQZMaBQiRtu9:bmvJ15ZihuFxw96ZMARc9
Threatray 1'277 similar samples on MalwareBazaar
TLSH 01251202B7C688B2D4730D32593AB7166D393A305E34DB6FE7E40D7DEA751906221BB2
Reporter abuse_ch
Tags:exe NanoCore nVpn RAT


Avatar
abuse_ch
Malspam distributing NanoCore:

HELO: sd.latticesystems.com
Sending IP: 96.44.130.88
From: Accounting <accounting@eaegiscrew.com.ph>
Subject: Re: SOA
Attachment: SOA.PDF.uue (contains "SOA.PDF.exe")

NanoCore RAT C2:
alquilosabc.loseyourip.com:54985 (185.140.53.135)

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 :
159
Origin country :
n/a
Vendor Threat Intelligence
Detection:
NanoCore
Create hunting rule
Link:
https://www.capesandbox.com/analysis/48621/
Detection(s):
PUA.Win.Downloader.Aiis-6803892-0
Create hunting rule

SecuriteInfo.com.Gen.Variant.Johnnie.221809.751.14920.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Searching for the window
Creating a file in the %AppData% subdirectories
Enabling the 'hidden' option for recently created files
Creating a process from a recently created file
Sending a UDP request
Creating a file
Creating a file in the %temp% directory
Adding an access-denied ACE
Launching a process
Deleting a recently created file
DNS request
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Connection attempt to an infection source
Enabling autorun by creating a file
Result
Threat name:
Nanocore
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
92 / 100
Link:
https://www.joesandbox.com/analysis/438438
Signature
Detected Nanocore Rat
Drops PE files with a suspicious file extension
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)
Uses an obfuscated file name to hide its real file extension (double extension)
Yara detected AntiVM autoit script
Yara detected Nanocore RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 271689 Sample: SOA.PDF.exe Startdate: 20/08/2020 Architecture: WINDOWS Score: 92 56 Malicious sample detected (through community Yara rule) 2->56 58 Detected Nanocore Rat 2->58 60 Yara detected AntiVM autoit script 2->60 62 4 other signatures 2->62 14 SOA.PDF.exe 86 2->14         started        18 pkvapgslxu.pif 2->18         started        21 pkvapgslxu.pif 2->21         started        process3 dnsIp4 52 C:\Users\user\AppData\...\pkvapgslxu.pif, PE32 14->52 dropped 66 Drops PE files with a suspicious file extension 14->66 23 pkvapgslxu.pif 4 3 14->23         started        54 192.168.2.1 unknown unknown 18->54 26 wscript.exe 18->26         started        file5 signatures6 process7 signatures8 64 Machine Learning detection for dropped file 23->64 28 wscript.exe 1 23->28         started        30 pkvapgslxu.pif 26->30         started        process9 process10 32 pkvapgslxu.pif 28->32         started        34 wscript.exe 30->34         started        process11 36 wscript.exe 1 32->36         started        38 pkvapgslxu.pif 34->38         started        process12 40 pkvapgslxu.pif 36->40         started        42 wscript.exe 38->42         started        process13 44 wscript.exe 40->44         started        process14 46 pkvapgslxu.pif 44->46         started        process15 48 wscript.exe 46->48         started        process16 50 pkvapgslxu.pif 48->50         started       
Detection:
nanocore
Create hunting rule
Link:
https://mwdb.cert.pl/sample/a259ab9f2ce1c874205cd31ac2f4ff924955caf2a81396b400dceb2438ff8921/
Threat name:
Win32.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2020-08-19 02:04:25 UTC
AV detection:
23 of 29 (79.31%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=ujm2xhzm4hehiic42mnmf5h7sjevlsxsvajznnaa3tvsioh7reqq._file
Verdict:
malicious
Label(s):
nanocorerat
Create hunting rule
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NanoCore
+ 1'267 additional samples on MalwareBazaar
Result
Malware family:
nanocore
Create hunting rule
Score:
  10/10
Tags:
persistence keylogger trojan stealer spyware family:nanocore evasion
Link:
https://tria.ge/reports/200819-jchaspld4j/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
Checks whether UAC is enabled
Loads dropped DLL
Executes dropped EXE
NanoCore
Malware Config
C2 Extraction:
Alquilosabc.loseyourip.com:54985
alquilos123.ddns.net:54985
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Backdoor
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/a259ab9f2ce1c874205cd31ac2f4ff924955caf2a81396b400dceb2438ff8921

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
Create hunting rule
Author:abuse.ch
Rule name:Nanocore
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Nanocore in memory
Reference:internal research
Rule name:Nanocore_RAT_Feb18_1
Create hunting rule
Author:Florian Roth
Description:Detects Nanocore RAT
Reference:Internal Research - T2T
Rule name:Nanocore_RAT_Gen_2
Create hunting rule
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
Create hunting rule
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

NanoCore

uue 28aa8ec808487bfc4089e22b1d14ddb6c85a490a27f95dba52248bf4ad46e365

NanoCore

Executable exe a259ab9f2ce1c874205cd31ac2f4ff924955caf2a81396b400dceb2438ff8921

(this sample)

  
Dropped by
MD5 88757420f9742886072d665cc8050cc5
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/48621/
  
Dropped by
SHA256 28aa8ec808487bfc4089e22b1d14ddb6c85a490a27f95dba52248bf4ad46e365

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