nanocore | 94ba1aaae5b54bd5acb7af4d010fcfc443a0a29fed4682de54692d81a3daf528

Analysis

max time kernel
35s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20220721-en
resource tags

arch:x64arch:x86image:win10v2004-20220721-enlocale:en-usos:windows10-2004-x64system
submitted
22/07/2022, 07:01

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General

Target
03897d2ad067097ea05634f78c64c2ef.exe
Size 210KB
Sample220722-hs7mhaddc8
SHA256 94ba1aaae5b54bd5acb7af4d010fcfc443a0a29fed4682de54692d81a3daf528
MD5 03897d2ad067097ea05634f78c64c2ef
SHA1 f3735560d8f242fd7b1d44181d6401272c3bccc1
SHA512 9d4489dd6a4b3d68ed3dcddda692f1b80a787d1c029e9d3050adf8f25132867d77fd1d4c92f1bec835456684bdf89214945647a23556191d2ddebcc351d57974
MD5 SHA1 SHA512

Score

10^/10

nanocore evasion keylogger persistence spyware stealer suricata trojan

Malware Config

Signatures

NanoCore
NanoCore is a remote access tool (RAT) with a variety of capabilities.
keylogger trojan stealer spyware nanocore
suricata: ET MALWARE Possible NanoCore C2 60B
suricata: ET MALWARE Possible NanoCore C2 60B
suricata

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\ARP Host = "C:\\Program Files (x86)\\ARP Host\\arphost.exe"	03897d2ad067097ea05634f78c64c2ef.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	03897d2ad067097ea05634f78c64c2ef.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\ARP Host\arphost.exe	03897d2ad067097ea05634f78c64c2ef.exe
File opened for modification	C:\Program Files (x86)\ARP Host\arphost.exe	03897d2ad067097ea05634f78c64c2ef.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

T1053

pid	Process
4112	schtasks.exe
3628	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
1448	03897d2ad067097ea05634f78c64c2ef.exe
1448	03897d2ad067097ea05634f78c64c2ef.exe
1448	03897d2ad067097ea05634f78c64c2ef.exe
1448	03897d2ad067097ea05634f78c64c2ef.exe
1448	03897d2ad067097ea05634f78c64c2ef.exe
1448	03897d2ad067097ea05634f78c64c2ef.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1448	03897d2ad067097ea05634f78c64c2ef.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1448	03897d2ad067097ea05634f78c64c2ef.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1448 wrote to memory of 4112	1448	03897d2ad067097ea05634f78c64c2ef.exe	77
PID 1448 wrote to memory of 4112	1448	03897d2ad067097ea05634f78c64c2ef.exe	77
PID 1448 wrote to memory of 4112	1448	03897d2ad067097ea05634f78c64c2ef.exe	77
PID 1448 wrote to memory of 3628	1448	03897d2ad067097ea05634f78c64c2ef.exe	79
PID 1448 wrote to memory of 3628	1448	03897d2ad067097ea05634f78c64c2ef.exe	79
PID 1448 wrote to memory of 3628	1448	03897d2ad067097ea05634f78c64c2ef.exe	79

C:\Users\Admin\AppData\Local\Temp\03897d2ad067097ea05634f78c64c2ef.exe
"C:\Users\Admin\AppData\Local\Temp\03897d2ad067097ea05634f78c64c2ef.exe"
1⤵
- Adds Run key to start application
- Checks whether UAC is enabled
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1448
- C:\Windows\SysWOW64\schtasks.exe
  "schtasks.exe" /create /f /tn "ARP Host" /xml "C:\Users\Admin\AppData\Local\Temp\tmp666F.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:4112
- C:\Windows\SysWOW64\schtasks.exe
  "schtasks.exe" /create /f /tn "ARP Host Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp676A.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:3628

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Registry Run Keys / Startup Folder

T1060

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

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

tmp666F.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmp666F.tmp
Size 1KB
SHA256 9325536d6c21982d7f0a30ab6a2a5542283d82b1b5b38e72a1136e4fc258672f
MD5 d6c24649c22f5a1f9d9f719523761746
SHA1 8a44632375f8eeb051a6f71f56e8f3d38a45dd67
SHA512 cd9d63c87734b3362c80331cc043a95c8249d12fc904d457ae6df56f69ed6fcb53eb1ac055236debdbd7e225d9a74c64dad130f2b66794113365107df4d1fe2b
MD5 SHA1 SHA512

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tmp676A.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmp676A.tmp
Size 1KB
SHA256 8d5304b20b7d7dea223ce2738e5668054250d57bf6bed86b305b69924bd472f5
MD5 447ab194ab36cb1d20078d80e502b1b2
SHA1 a947b3b2c91d7c50bb8d39bd4fc91a0d0cc5b1c0
SHA512 49ddc557f7f6635627eea9bf0fa12a14b7b13edb235ed560ee0044a7f87fe27b686ff878d347d0273d92eb0b318b8c2bca85c0fbf42d586ed7d7da39eac6a327
MD5 SHA1 SHA512

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memory/1448-130-0x0000000075350000-0x0000000075901000-memory.dmp

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memory/1448-135-0x0000000075350000-0x0000000075901000-memory.dmp

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