MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1e0640a5975ce7260ddb68118389c76efc0fbbd791bcf62a3280f116a4ef4f66. 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: 1e0640a5975ce7260ddb68118389c76efc0fbbd791bcf62a3280f116a4ef4f66
SHA3-384 hash: 220a11b95219b78345c15b9ea99ad8a00f7ac99d63c30520490b8025938db21df6e656f1a16268692635d031b347afa6
SHA1 hash: 94d87ea7c207ad56822174cb1c3a294aebc3ecbb
MD5 hash: d46d72231787f586ec24ebe1b1b7d697
humanhash: winter-aspen-jupiter-earth
File name:RFQ.exe
Download: download sample
Signature NanoCore
Create hunting rule
File size:760'320 bytes
First seen:2020-08-27 08:56:38 UTC
Last seen:2020-08-27 10:09:56 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'597 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:PzHKXdojsDyDqljanetnCyMYf9ITkkIZX8WiVoqrz9kra86JROkLRJLdD+eCVsVr:WXdgseMnCyDiTkZZX8WiVoqrR98UR9RB
Threatray 1'084 similar samples on MalwareBazaar
TLSH CEF4D04A47198B2CDD08B3BD719044ADD5327B42EE34E1D8EF4B74B85B6B28EE05D2C6
Reporter abuse_ch
Tags:exe NanoCore nVpn RAT


Avatar
abuse_ch
Malspam distributing NanoCore:

HELO: server.miyoshi.biz
Sending IP: 111.235.136.178
From: Lena Al Yousaif <Chiu.MeeKing@justlamps.net>
Reply-To: sparesmrrn@gmail.com
Subject: Request For Quotation
Attachment: RFQ.arj (contains "RFQ.exe")

NanoCore RAT C2:
185.244.30.6:1985

Hosted on 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-EU4
country: EU
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: 2020-07-28T21:04:34Z
source: RIPE

Intelligence

File Origin
# of uploads :
2
# of downloads :
188
Origin country :
n/a
Vendor Threat Intelligence
Detection:
NanoCore
Create hunting rule
Link:
https://www.capesandbox.com/analysis/51709/
Detection(s):
SecuriteInfo.com.Trojan.Packed2.42555.7973.25195.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
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
Creating a file in the Program Files subdirectories
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Enabling autorun by creating a file
Unauthorized injection to a system process
Result
Threat name:
Nanocore AveMaria MailPassView
Create hunting rule
Detection:
malicious
Classification:
phis.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/452479
Signature
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
Allocates memory in foreign processes
Detected Nanocore Rat
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
Protects its processes via BreakOnTermination flag
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)
Tries to steal Instant Messenger accounts or passwords
Tries to steal Mail credentials (via file access)
Tries to steal Mail credentials (via file registry)
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected AntiVM_3
Yara detected AveMaria stealer
Yara detected MailPassView
Yara detected Nanocore RAT
Yara detected WebBrowserPassView password recovery tool
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 278600 Sample: RFQ.exe Startdate: 27/08/2020 Architecture: WINDOWS Score: 100 68 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->68 70 Malicious sample detected (through community Yara rule) 2->70 72 Multi AV Scanner detection for dropped file 2->72 74 13 other signatures 2->74 8 RFQ.exe 7 2->8         started        12 RegSvcs.exe 2 2->12         started        14 dhcpmon.exe 2 2->14         started        16 dhcpmon.exe 1 2->16         started        process3 file4 52 C:\Users\user\AppData\...\ZZkGyFbArwadUg.exe, PE32 8->52 dropped 54 C:\Users\user\AppData\Local\...\tmpF9AE.tmp, XML 8->54 dropped 56 C:\Users\user\AppData\Local\...\RFQ.exe.log, ASCII 8->56 dropped 78 Writes to foreign memory regions 8->78 80 Allocates memory in foreign processes 8->80 82 Injects a PE file into a foreign processes 8->82 18 RegSvcs.exe 1 14 8->18         started        23 schtasks.exe 1 8->23         started        25 RegSvcs.exe 8->25         started        58 C:\Users\user\AppData\...\RegSvcs.exe.log, ASCII 12->58 dropped 27 conhost.exe 12->27         started        29 conhost.exe 14->29         started        31 conhost.exe 16->31         started        signatures5 process6 dnsIp7 60 185.244.30.6, 1985, 49718 DAVID_CRAIGGG Netherlands 18->60 48 C:\Users\user\AppData\Roaming\...\run.dat, ISO-8859 18->48 dropped 50 C:\Program Files (x86)\...\dhcpmon.exe, PE32 18->50 dropped 76 Protects its processes via BreakOnTermination flag 18->76 33 vbc.exe 1 18->33         started        36 vbc.exe 18->36         started        38 schtasks.exe 1 18->38         started        42 3 other processes 18->42 40 conhost.exe 23->40         started        file8 signatures9 process10 signatures11 62 Tries to steal Instant Messenger accounts or passwords 33->62 64 Tries to steal Mail credentials (via file access) 33->64 66 Tries to steal Mail credentials (via file registry) 36->66 44 conhost.exe 38->44         started        46 conhost.exe 42->46         started        process12
Detection:
nanocore
Create hunting rule
Link:
https://mwdb.cert.pl/sample/1e0640a5975ce7260ddb68118389c76efc0fbbd791bcf62a3280f116a4ef4f66/
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Create hunting rule
Status:
Malicious
First seen:
2020-08-27 08:58:09 UTC
AV detection:
23 of 29 (79.31%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=dydebjmxlttsmdo3naiyhcohn36a7o6xsg6pmkrsqdyrnjhpj5ta._file
Verdict:
malicious
Label(s):
nanocorerat
Create hunting rule
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NanoCore
+ 1'074 additional samples on MalwareBazaar
Result
Malware family:
nanocore
Create hunting rule
Score:
  10/10
Tags:
keylogger trojan stealer spyware family:nanocore persistence
Link:
https://tria.ge/reports/200827-pyg5dwe8ne/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Drops file in Program Files directory
Suspicious use of SetThreadContext
Adds Run key to start application
NanoCore
Malware Config
C2 Extraction:
185.244.30.6:1985
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Trojan
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/1e0640a5975ce7260ddb68118389c76efc0fbbd791bcf62a3280f116a4ef4f66

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

arj eb8c3a098cd79a9b9f390480def51d2302149abdb95d94da5450349880780495

NanoCore

Executable exe 1e0640a5975ce7260ddb68118389c76efc0fbbd791bcf62a3280f116a4ef4f66

(this sample)

  
Dropped by
MD5 f031596bf3e2b66035efaf7bd7cd98ab
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/51709/
  
Dropped by
SHA256 eb8c3a098cd79a9b9f390480def51d2302149abdb95d94da5450349880780495

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