nanocore | 1d0128fd3184a765076397dd308e51bbc578a3639cb9c08ab6b5c36704d772b4

Resubmissions

14-11-2023 17:31

231114-v3qg7acf42 10

14-11-2023 17:21

28-10-2023 19:29

24-10-2023 13:29

18-10-2023 12:04

07-09-2023 12:10

Analysis

max time kernel
150s
max time network
159s
platform
windows10-2004_x64
resource
win10v2004-20231023-en
resource tags

arch:x64arch:x86image:win10v2004-20231023-enlocale:en-usos:windows10-2004-x64system
submitted
28-10-2023 19:29

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General

Target

ea55e146fed653416bd40c92ce89cd61b46035c7bc6f55a33c71a9872e2c9659.exe
Size

564KB
MD5

bdfc510bad54e411a0e5ed3d479fdecd
SHA1

3f4fc2f5ec18d2205dffdc1bd3c27b0416cc7bb1
SHA256

ea55e146fed653416bd40c92ce89cd61b46035c7bc6f55a33c71a9872e2c9659
SHA512

544248ae466c36eed4ee5803863527212897aa71ca80e7f2cf5da494c25e26254e6266b951e3bfe3be305b74de806d229c338d9bb2790e7b974656d9c3ddb89c
SSDEEP

12288:auoRx16X8AQpbnQusfrSytqtFtALqP4vAvQHv:aXRx16X8HwFtqtFtmqPs

Score

10^/10

nanocore evasion keylogger persistence spyware stealer trojan

Malware Config

Signatures

NanoCore
NanoCore is a remote access tool (RAT) with a variety of capabilities.
keylogger trojan stealer spyware nanocore

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\DHCP Monitor = "C:\\Program Files (x86)\\DHCP Monitor\\dhcpmon.exe"	ea55e146fed653416bd40c92ce89cd61b46035c7bc6f55a33c71a9872e2c9659.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	ea55e146fed653416bd40c92ce89cd61b46035c7bc6f55a33c71a9872e2c9659.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 3 IoCs

pid	Process
2068	ea55e146fed653416bd40c92ce89cd61b46035c7bc6f55a33c71a9872e2c9659.exe
2264	ea55e146fed653416bd40c92ce89cd61b46035c7bc6f55a33c71a9872e2c9659.exe
2264	ea55e146fed653416bd40c92ce89cd61b46035c7bc6f55a33c71a9872e2c9659.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2068 set thread context of 2264	2068	ea55e146fed653416bd40c92ce89cd61b46035c7bc6f55a33c71a9872e2c9659.exe	85

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\DHCP Monitor\dhcpmon.exe	ea55e146fed653416bd40c92ce89cd61b46035c7bc6f55a33c71a9872e2c9659.exe
File created	C:\Program Files (x86)\DHCP Monitor\dhcpmon.exe	ea55e146fed653416bd40c92ce89cd61b46035c7bc6f55a33c71a9872e2c9659.exe

Creates scheduled task(s) 1 TTPs 2 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task/Job

T1053

pid	Process
3080	schtasks.exe
3632	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2264	ea55e146fed653416bd40c92ce89cd61b46035c7bc6f55a33c71a9872e2c9659.exe
2264	ea55e146fed653416bd40c92ce89cd61b46035c7bc6f55a33c71a9872e2c9659.exe
2264	ea55e146fed653416bd40c92ce89cd61b46035c7bc6f55a33c71a9872e2c9659.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2264	ea55e146fed653416bd40c92ce89cd61b46035c7bc6f55a33c71a9872e2c9659.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2264	ea55e146fed653416bd40c92ce89cd61b46035c7bc6f55a33c71a9872e2c9659.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2068	ea55e146fed653416bd40c92ce89cd61b46035c7bc6f55a33c71a9872e2c9659.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2068 wrote to memory of 2264	2068	ea55e146fed653416bd40c92ce89cd61b46035c7bc6f55a33c71a9872e2c9659.exe	85
PID 2068 wrote to memory of 2264	2068	ea55e146fed653416bd40c92ce89cd61b46035c7bc6f55a33c71a9872e2c9659.exe	85
PID 2068 wrote to memory of 2264	2068	ea55e146fed653416bd40c92ce89cd61b46035c7bc6f55a33c71a9872e2c9659.exe	85
PID 2264 wrote to memory of 3632	2264	ea55e146fed653416bd40c92ce89cd61b46035c7bc6f55a33c71a9872e2c9659.exe	86
PID 2264 wrote to memory of 3632	2264	ea55e146fed653416bd40c92ce89cd61b46035c7bc6f55a33c71a9872e2c9659.exe	86
PID 2264 wrote to memory of 3632	2264	ea55e146fed653416bd40c92ce89cd61b46035c7bc6f55a33c71a9872e2c9659.exe	86
PID 2264 wrote to memory of 3080	2264	ea55e146fed653416bd40c92ce89cd61b46035c7bc6f55a33c71a9872e2c9659.exe	88
PID 2264 wrote to memory of 3080	2264	ea55e146fed653416bd40c92ce89cd61b46035c7bc6f55a33c71a9872e2c9659.exe	88
PID 2264 wrote to memory of 3080	2264	ea55e146fed653416bd40c92ce89cd61b46035c7bc6f55a33c71a9872e2c9659.exe	88

C:\Users\Admin\AppData\Local\Temp\ea55e146fed653416bd40c92ce89cd61b46035c7bc6f55a33c71a9872e2c9659.exe
"C:\Users\Admin\AppData\Local\Temp\ea55e146fed653416bd40c92ce89cd61b46035c7bc6f55a33c71a9872e2c9659.exe"
1⤵
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2068
- C:\Users\Admin\AppData\Local\Temp\ea55e146fed653416bd40c92ce89cd61b46035c7bc6f55a33c71a9872e2c9659.exe
  "C:\Users\Admin\AppData\Local\Temp\ea55e146fed653416bd40c92ce89cd61b46035c7bc6f55a33c71a9872e2c9659.exe"
  2⤵
  - Adds Run key to start application
  - Checks whether UAC is enabled
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - Drops file in Program Files directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2264
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "DHCP Monitor" /xml "C:\Users\Admin\AppData\Local\Temp\tmp57CF.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:3632
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "DHCP Monitor Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp5A70.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:3080

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp57CF.tmp

Filesize
1KB

MD5
9ddbb35913a67b23d3996e65b7e41215

SHA1
1065fddd93b1eaf76f862b8c838b1ceeed5f36ed

SHA256
9068f833bbe3d10eeeb3eaf5c48b94cc19839c3f264c98b3b7b569d39650a9bb

SHA512
80def92e34309a60f641c7b9632dbc9c7bdc63d9377da4cfafe1a5dc5a5b7c22824246eb75c30349ab046c143e848d2f103e14203ca29c5c4b54c56ebcf2399c

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp5A70.tmp

Filesize
1KB

MD5
5c2f41cfc6f988c859da7d727ac2b62a

SHA1
68999c85fc7e37bab9216e0099836d40d4545c1c

SHA256
98b6e66b6c2173b9b91fc97fe51805340efde978b695453742ebab631018398b

SHA512
b5da5da378d038afbf8a7738e47921ed39f9b726e2caa2993d915d9291a3322f94efe8cca6e7ad678a670db19926b22b20e5028460fcc89cea7f6635e7557334

Download Submit
memory/2068-4-0x00000000022C0000-0x00000000022CE000-memory.dmp

Filesize
56KB

Download
memory/2068-2-0x00000000022C0000-0x00000000022CE000-memory.dmp

Filesize
56KB

Download
memory/2068-5-0x0000000077AE1000-0x0000000077C01000-memory.dmp

Filesize
1.1MB

Download
memory/2068-3-0x0000000077AE1000-0x0000000077C01000-memory.dmp

Filesize
1.1MB

Download
memory/2264-6-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/2264-7-0x0000000075150000-0x0000000075701000-memory.dmp

Filesize
5.7MB

Download
memory/2264-8-0x0000000075150000-0x0000000075701000-memory.dmp

Filesize
5.7MB

Download
memory/2264-9-0x0000000002B50000-0x0000000002B60000-memory.dmp

Filesize
64KB

Download
memory/2264-10-0x0000000002B50000-0x0000000002B60000-memory.dmp

Filesize
64KB

Download
memory/2264-19-0x00000000005B0000-0x00000000005BE000-memory.dmp

Filesize
56KB

Download
memory/2264-20-0x0000000075150000-0x0000000075701000-memory.dmp

Filesize
5.7MB

Download