MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8a170584ad7402c1bee5b9c0932475bce9eef45d40b0774594a8df01eb9737db. 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: 8a170584ad7402c1bee5b9c0932475bce9eef45d40b0774594a8df01eb9737db
SHA3-384 hash: 97f16cada1468de5eeb05e80f5fac8cb6145fb5a54281025ec1084286c57f8de81227aebb9ca355b84d27df35e59d919
SHA1 hash: a388ed048b725f09fa1415bc49ee5210810a0202
MD5 hash: 1cf26a96c17dbab78096a376a904d334
humanhash: apart-helium-juliet-king
File name:1cf26a96c17dbab78096a376a904d334.exe
Download: download sample
Signature NanoCore
Create hunting rule
File size:555'008 bytes
First seen:2020-09-20 04:15:23 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'461 x Formbook, 12'202 x SnakeKeylogger)
ssdeep 12288:YeettA1LCVfpgehv2zv1gYVEdi3s6lE1gFRMD888BTv9LRie:P2tfpgeo2YWdi7ag/KL8Bv9L8e
Threatray 1'076 similar samples on MalwareBazaar
TLSH BFC4E1304E885F5FE5FDE1B800855129E3F698A2A613EB973CA460F872C33D54B3D669
Reporter abuse_ch
Tags:exe NanoCore RAT


Avatar
abuse_ch
NanoCore RAT C2:
yawalessinc.hopto.org:2786 (180.214.238.180)

Intelligence

File Origin
# of uploads :
1
# of downloads :
242
Origin country :
n/a
Vendor Threat Intelligence
Detection:
NanoCore
Create hunting rule
Link:
https://www.capesandbox.com/analysis/63849/
Detection(s):
SecuriteInfo.com.MSIL.Kryptik.VFR-1.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file
Creating a file in the %AppData% subdirectories
Creating a file in the Program Files subdirectories
DNS request
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
Unauthorized injection to a recently created process
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/470772
Signature
.NET source code contains potential unpacker
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
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
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
Yara detected AntiVM_3
Yara detected Nanocore RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 287822 Sample: c3CHFtE8lI.exe Startdate: 20/09/2020 Architecture: WINDOWS Score: 100 67 Found malware configuration 2->67 69 Malicious sample detected (through community Yara rule) 2->69 71 Multi AV Scanner detection for dropped file 2->71 73 11 other signatures 2->73 8 c3CHFtE8lI.exe 7 2->8         started        12 c3CHFtE8lI.exe 4 2->12         started        14 dhcpmon.exe 2->14         started        16 dhcpmon.exe 3 2->16         started        process3 file4 57 C:\Users\user\AppData\Roaming\ZbPSGyp.exe, PE32 8->57 dropped 59 C:\Users\user\...\ZbPSGyp.exe:Zone.Identifier, ASCII 8->59 dropped 61 C:\Users\user\AppData\Local\...\tmp4FCD.tmp, XML 8->61 dropped 63 C:\Users\user\AppData\...\c3CHFtE8lI.exe.log, ASCII 8->63 dropped 77 Injects a PE file into a foreign processes 8->77 18 c3CHFtE8lI.exe 1 14 8->18         started        23 schtasks.exe 1 8->23         started        25 c3CHFtE8lI.exe 8->25         started        27 schtasks.exe 1 12->27         started        29 c3CHFtE8lI.exe 2 12->29         started        31 c3CHFtE8lI.exe 12->31         started        33 schtasks.exe 14->33         started        35 dhcpmon.exe 14->35         started        signatures5 process6 dnsIp7 65 yawalessinc.hopto.org 185.165.153.6, 2786, 49716, 49717 DAVID_CRAIGGG Netherlands 18->65 51 C:\Program Files (x86)\...\dhcpmon.exe, PE32 18->51 dropped 53 C:\Users\user\AppData\Roaming\...\run.dat, ISO-8859 18->53 dropped 55 C:\...\dhcpmon.exe:Zone.Identifier, ASCII 18->55 dropped 75 Hides that the sample has been downloaded from the Internet (zone.identifier) 18->75 37 schtasks.exe 1 18->37         started        39 schtasks.exe 1 18->39         started        41 conhost.exe 23->41         started        43 conhost.exe 27->43         started        45 conhost.exe 33->45         started        file8 signatures9 process10 process11 47 conhost.exe 37->47         started        49 conhost.exe 39->49         started       
Detection:
nanocore
Create hunting rule
Link:
https://mwdb.cert.pl/sample/8a170584ad7402c1bee5b9c0932475bce9eef45d40b0774594a8df01eb9737db/
Threat name:
ByteCode-MSIL.Backdoor.NanoCore
Create hunting rule
Status:
Malicious
First seen:
2020-09-19 10:11:49 UTC
AV detection:
24 of 29 (82.76%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=rilqlbfnoqbmdpxfxhajgjdvxtu655c5icyhormuvdpqd24xg7nq._file
Verdict:
malicious
Label(s):
nanocorerat
Create hunting rule
Similar samples:
1778a255b790b18f042384c6ebb3176d3f3f0fd172d313b07242ac42b000132e
NanoCore
1b3702eabbbefb1dd38f3141cdf45817d7701befb161527dede27a9d43476d6f
NanoCore
41ccbc679c2941a561c736334dd245fdfd0dffef9656a55eede15676a60f55cc
NanoCore
5106eff2035cae4bc844f175750857ecffe095b70f7872ddd212bedce7776e80
NanoCore
523e47e96043b4e5ff372230e6fbdf6a56f6e8fcf95fcd94d4a976d95471e54c
NanoCore
525ad168dd1152a5dd477791b01b3d6edf0ddf296b72ef04b96a79f1e2a1e499
NanoCore
b59de3e185784023c3bfa211f874ab50b74083e6d0a83174a8c42d74099429a4
NanoCore
c3372683261b447261620810696af6f9f7250ec7022b82c81895051039effcbd
NanoCore
e5c9691f51404bd8f320749285c4bcf595fbed53931af1424551fb5f5b9c594f
NanoCore
e8254b66674540a3ccd19360e61beca8337a93af404f3486dca84a5bcdb3abd4
NanoCore
+ 1'066 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/200920-kaysmpaeh2/
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
Checks whether UAC is enabled
NanoCore
Malware Config
C2 Extraction:
yawalessinc.hopto.org:2786
185.165.153.6:2786
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Kryptik
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/8a170584ad7402c1bee5b9c0932475bce9eef45d40b0774594a8df01eb9737db

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.

Web download

NanoCore

Executable exe 8a170584ad7402c1bee5b9c0932475bce9eef45d40b0774594a8df01eb9737db

(this sample)

Cape
Cape
https://www.capesandbox.com/analysis/63849/
  
URLhaus
https://urlhaus.abuse.ch/url/505026/
  
Delivery method
Distributed via web download

Comments