MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 16a89bdfcb47975f86cf09cca2ae8a67224cc37cfd69264f9a55feed1cc83c48. 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


Intelligence 8 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 16a89bdfcb47975f86cf09cca2ae8a67224cc37cfd69264f9a55feed1cc83c48
SHA3-384 hash: 70b8cf153c91db42313e66b63c942f42666bcae482fe589836bab0b382e8db9537cdb2502eaea778f94c9c18ff16852d
SHA1 hash: edcea56624d951b38aed65c6aa1913fb5b0e4884
MD5 hash: 5b8b40704f2fca5bf16e4fba4cb6990e
humanhash: sad-july-connecticut-london
File name:LOI.exe
Download: download sample
Signature NanoCore
Create hunting rule
File size:439'808 bytes
First seen:2020-08-14 08:42:58 UTC
Last seen:Never
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:NbQbamTWaMYCECkxn2yRqjF1YxlcMRde:iamTWatCkFhecR
Threatray 1'111 similar samples on MalwareBazaar
TLSH 4B94E03E02F1D509C03BF17D921A919AB2D7DC9F00A5C71A29AC0DE40E396E656A7DFC
Reporter abuse_ch
Tags:exe NanoCore RAT Yahoo


Avatar
abuse_ch
Malspam distributing NanoCore:

HELO: sonic305-21.consmr.mail.sg3.yahoo.com
Sending IP: 106.10.241.84
From: Albert Zuzarte <aezuzarte@yahoo.co.in>
Reply-To: Albert Zuzarte <aezuzarte@yahoo.co.in>
Subject: LOI AND RFQ
Attachment: LOI.zip.lha (contains "LOI.exe")

Intelligence

File Origin
# of uploads :
1
# of downloads :
118
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/45642/
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
Unauthorized injection to a recently created process
Creating a file
Creating a file in the %AppData% subdirectories
Creating a file in the Program Files subdirectories
DNS request
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
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:
100 / 100
Link:
https://www.joesandbox.com/analysis/429022
Signature
.NET source code contains potential unpacker
Binary contains a suspicious time stamp
Detected Nanocore Rat
Found malware configuration
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)
Sigma detected: NanoCore
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 dynamic DNS services
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM_3
Yara detected Nanocore RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 267001 Sample: LOI.exe Startdate: 15/08/2020 Architecture: WINDOWS Score: 100 42 chidinduirofuala.ddns.net 2->42 52 Found malware configuration 2->52 54 Malicious sample detected (through community Yara rule) 2->54 56 Sigma detected: Scheduled temp file as task from temp location 2->56 58 9 other signatures 2->58 8 LOI.exe 7 2->8         started        12 dhcpmon.exe 5 2->12         started        signatures3 process4 dnsIp5 38 C:\Users\user\AppData\Local\...\tmp70C1.tmp, XML 8->38 dropped 40 C:\Users\user\AppData\RoamingulNopOGp.exe, PE32 8->40 dropped 60 Injects a PE file into a foreign processes 8->60 15 LOI.exe 1 9 8->15         started        20 schtasks.exe 1 8->20         started        22 LOI.exe 8->22         started        44 192.168.2.1 unknown unknown 12->44 24 schtasks.exe 1 12->24         started        26 dhcpmon.exe 2 12->26         started        file6 signatures7 process8 dnsIp9 46 chidinduirofuala.ddns.net 105.112.100.239, 45456 VNL1-ASNG Nigeria 15->46 48 79.134.225.74, 45456, 49737, 49738 FINK-TELECOM-SERVICESCH Switzerland 15->48 32 C:\Program Files (x86)\...\dhcpmon.exe, PE32 15->32 dropped 34 C:\Users\user\AppData\Roaming\...\run.dat, Non-ISO 15->34 dropped 36 C:\...\dhcpmon.exe:Zone.Identifier, ASCII 15->36 dropped 50 Hides that the sample has been downloaded from the Internet (zone.identifier) 15->50 28 conhost.exe 20->28         started        30 conhost.exe 24->30         started        file10 signatures11 process12
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/16a89bdfcb47975f86cf09cca2ae8a67224cc37cfd69264f9a55feed1cc83c48/
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Create hunting rule
Status:
Malicious
First seen:
2020-08-14 08:44:09 UTC
AV detection:
12 of 48 (25.00%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=c2ujxx6li6lv7bwpbhgkflukm4rezq347vusmt42kx7o2hgihrea._file
Verdict:
malicious
Label(s):
nanocorerat
Create hunting rule
Similar samples:
38701fe4b63d1436ba2e26cc7e268327299b58bcccbf074bfb2cbbcf57ceb2ea
NanoCore
73c1dadfe683d9f3dfcd2655018b4a17d0a679caf40195a223f387025086bc86
NanoCore
756fde810887452ab2533283973f2e582df198988bcafde9f20dc85e35f4d5c4
NanoCore
7c1982f88aa59a9e220b92e280e4fe1d47ef06214aa5784572f688419e3e7ec4
NanoCore
83b70b20d0cdb13e9c420723ba5f025827d21e0c051c6e64b5553a5c372c3374
NanoCore
e29e9d9beb5ce8187decf038cdc0b1d3102b4cfe43715a3b4f934098a943ebed
NanoCore
e7fa1cf008969a70a894b2947737b69c26abb63378d9d4305b698b223793029f
NanoCore
e8bfec50fddb83c5a16f3f1110751cf2e01b359f2f7236f7f42db0451cf12d79
NanoCore
ed6ea055c622adab41b5eba73b4d556c4c843b9e77e21933297ca0ce972ce5c4
NanoCore
fadcffc72696cb639334be446d2aeb90743b270276f48b730efbb59b73505a85
NanoCore
+ 1'101 additional samples on MalwareBazaar
Result
Malware family:
nanocore
Create hunting rule
Score:
  10/10
Tags:
keylogger trojan stealer spyware family:nanocore persistence evasion
Link:
https://tria.ge/reports/200814-2n2pp3ktz2/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
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
Checks whether UAC is enabled
NanoCore
Malware Config
C2 Extraction:
chidinduirofuala.ddns.net:45456
79.134.225.74:45456
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.87
Link:
https://yomi.yoroi.company/submissions/16a89bdfcb47975f86cf09cca2ae8a67224cc37cfd69264f9a55feed1cc83c48

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

zip c5c767666c37b268479781ea3700234ba34341662c37008a7713ec57f976940b

NanoCore

Executable exe 16a89bdfcb47975f86cf09cca2ae8a67224cc37cfd69264f9a55feed1cc83c48

(this sample)

  
Dropped by
MD5 f4e5778594a9543ed5601fb47c3fd700
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/45642/
  
Dropped by
SHA256 c5c767666c37b268479781ea3700234ba34341662c37008a7713ec57f976940b

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