MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 12e1a02b8865ab79bb33133254b35fb4d4be1936ce6e7ec69e4bfbb25872f716. 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: 9


Intelligence 9 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 12e1a02b8865ab79bb33133254b35fb4d4be1936ce6e7ec69e4bfbb25872f716
SHA3-384 hash: aef3b8ae4ed2446657c51e7f89b92de4569ee8b8224cf96d7cf1991003f25e5bfa78b99510b9d0baee6c01f9f2a0a552
SHA1 hash: 34e25f06c5d2a5cb2376d1dc48d031d6da8ce5f1
MD5 hash: 2fd93ad03836ad7288534d0171c6eea6
humanhash: five-orange-high-grey
File name:CONTRACT PMA1911003.exe
Download: download sample
Signature NanoCore
Create hunting rule
File size:413'184 bytes
First seen:2020-08-05 08:00:40 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:Eun2SIYXzfm0q2jEYNqBZDMjMQtJ3a5PMguf8Nd:N2S/FTUQYMg
Threatray 1'091 similar samples on MalwareBazaar
TLSH 8194E06C7260612EF2391D3F4C3115839E22F85FEE25DA4B667211AC417E29CBC75FA2
Reporter abuse_ch
Tags:exe NanoCore RAT


Avatar
abuse_ch
Malspam distributing NanoCore:

HELO: hshgroups.co
Sending IP: 104.168.166.26
From: Kik , Cholladda Chomphun <samimi@actb.com.au>
Subject: NEW PROJECT CONTRACT PMA1911003
Attachment: CONTRACT PMA1911003.rar (contains "CONTRACT PMA1911003.exe")

Intelligence

File Origin
# of uploads :
1
# of downloads :
91
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/39147/
Detection(s):
SecuriteInfo.com.CIL.HeapOverride.Heur.31059.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a window
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
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
Connection attempt to an infection source
Enabling autorun by creating a file
Unauthorized injection to a system process
Result
Threat name:
Nanocore
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/410464
Signature
.NET source code contains potential unpacker
Allocates memory in foreign processes
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Detected Nanocore Rat
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
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 schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected AntiVM_3
Yara detected Nanocore RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 257485 Sample: CONTRACT PMA1911003.exe Startdate: 05/08/2020 Architecture: WINDOWS Score: 100 40 Malicious sample detected (through community Yara rule) 2->40 42 Sigma detected: Scheduled temp file as task from temp location 2->42 44 Sigma detected: NanoCore 2->44 46 9 other signatures 2->46 7 CONTRACT PMA1911003.exe 7 2->7         started        11 dhcpmon.exe 4 2->11         started        process3 file4 24 C:\Users\user\AppData\Roaming\faNhdjoHG.exe, PE32 7->24 dropped 26 C:\Users\...\faNhdjoHG.exe:Zone.Identifier, ASCII 7->26 dropped 28 C:\Users\user\AppData\Local\...\tmpE1A6.tmp, XML 7->28 dropped 30 C:\Users\user\...\CONTRACT PMA1911003.exe.log, ASCII 7->30 dropped 48 Writes to foreign memory regions 7->48 50 Allocates memory in foreign processes 7->50 52 Injects a PE file into a foreign processes 7->52 13 RegSvcs.exe 1 10 7->13         started        18 schtasks.exe 1 7->18         started        20 conhost.exe 11->20         started        signatures5 process6 dnsIp7 36 185.140.53.12, 1985, 49732, 49735 DAVID_CRAIGGG Sweden 13->36 38 127.0.0.1 unknown unknown 13->38 32 C:\Users\user\AppData\Roaming\...\run.dat, data 13->32 dropped 34 C:\Program Files (x86)\...\dhcpmon.exe, PE32 13->34 dropped 54 Hides that the sample has been downloaded from the Internet (zone.identifier) 13->54 22 conhost.exe 18->22         started        file8 signatures9 process10
Detection:
nanocore
Create hunting rule
Link:
https://mwdb.cert.pl/sample/12e1a02b8865ab79bb33133254b35fb4d4be1936ce6e7ec69e4bfbb25872f716/
Threat name:
ByteCode-MSIL.Backdoor.NanoCore
Create hunting rule
Status:
Malicious
First seen:
2020-08-05 08:02:11 UTC
AV detection:
25 of 29 (86.21%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=clq2ak4imwvxtoztcmzfjm27wtkl4gjwzzxh5ru6jp53ewds64la._file
Verdict:
malicious
Label(s):
nanocorerat
Create hunting rule
Similar samples:
1038e9a84ab134e86481b12ac645c59e68dd2b182aa201fed07397071e5d057a
NanoCore
1717df1ab47e7e7018f932174fc590d7db4ba7ccb3d20da6effac2ca3caa9b3d
NanoCore
1c2fafc2031b76ab4caf3f91474f023321703a820209da4591192b6ca7cd09d2
NanoCore
4a8ff9992c9b8eff93fc5296c61ceaeeae990c6b7edb73c024b1b1f9c90dd596
NanoCore
7528449cf7a3a8d1b8d56a5207cbcff5c2afe95aa6f4258acfa858a28bd370f5
NanoCore
871cf9e52911f7083fd15362805aad6678eb529268a04916d8916ce423d43673
NanoCore
9631112f3c105bfd3d00a80f15c76131541c94cbde549e195e754456c5d36cdf
NanoCore
c38c88878a7c284cd19149b2efb91129b16ae51c6ff32badb2622122185f1692
NanoCore
dd02cb85d94d9d687d5de330f198abd8f1a84720947c03dfad880526830986f3
NanoCore
fcfbd97a36604b87573118a94eb16adfa19d2d13f731565120b6f17a6845dda7
NanoCore
+ 1'081 additional samples on MalwareBazaar
Result
Malware family:
nanocore
Create hunting rule
Score:
  10/10
Tags:
evasion trojan keylogger stealer spyware family:nanocore persistence
Link:
https://tria.ge/reports/200805-w8nrpfqlej/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Creates scheduled task(s)
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:
185.140.53.12:1985
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Eldorado
Score:
0.90
Link:
https://yomi.yoroi.company/submissions/12e1a02b8865ab79bb33133254b35fb4d4be1936ce6e7ec69e4bfbb25872f716

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

rar 03928844ee5058406b76bd8a059162e54f7666fdef5a9b77872cfa761850c01a

NanoCore

Executable exe 12e1a02b8865ab79bb33133254b35fb4d4be1936ce6e7ec69e4bfbb25872f716

(this sample)

  
Dropped by
MD5 ea624d631da0dd4963d9bf543b5984f9
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/39147/
  
Dropped by
SHA256 03928844ee5058406b76bd8a059162e54f7666fdef5a9b77872cfa761850c01a

Comments