nanocore | 34ff10730c9e4c37d8d8671582ed5e17ce801280f587c3742aba7b478b79a338

Analysis

max time kernel
147s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
07/11/2024, 16:21

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General

Target
34ff10730c9e4c37d8d8671582ed5e17ce801280f587c3742aba7b478b79a338.exe
Size 203KB
Sample241107-ttpc4ayjar
SHA256 34ff10730c9e4c37d8d8671582ed5e17ce801280f587c3742aba7b478b79a338
MD5 697e0f8ff4933bc74eeb786986e83161
SHA1 8aefabcf687b0ce57b268952a682e4330e01842d
SHA512 cb10ddef9e35e35858ee6e133b45b34694bdd2f8531b245db9161500057187abfa071fd4bf7bde8163a184802e59f81fc902ce9459a25cffbe0f7499f6f3d523
SSDEEP 6144:MLV6Bta6dtJmakIM5sd4SJm9dsJz1ORH4L:MLV6BtpmkBdvzORHE
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

nanocore discovery 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
Nanocore family
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\ARP Host = "C:\\Program Files (x86)\\ARP Host\\arphost.exe"	34ff10730c9e4c37d8d8671582ed5e17ce801280f587c3742aba7b478b79a338.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	34ff10730c9e4c37d8d8671582ed5e17ce801280f587c3742aba7b478b79a338.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\ARP Host\arphost.exe	34ff10730c9e4c37d8d8671582ed5e17ce801280f587c3742aba7b478b79a338.exe
File opened for modification	C:\Program Files (x86)\ARP Host\arphost.exe	34ff10730c9e4c37d8d8671582ed5e17ce801280f587c3742aba7b478b79a338.exe

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	34ff10730c9e4c37d8d8671582ed5e17ce801280f587c3742aba7b478b79a338.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

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

persistence execution

Scheduled Task

T1053.005

pid	Process
2188	schtasks.exe
3972	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
3936	34ff10730c9e4c37d8d8671582ed5e17ce801280f587c3742aba7b478b79a338.exe
3936	34ff10730c9e4c37d8d8671582ed5e17ce801280f587c3742aba7b478b79a338.exe
3936	34ff10730c9e4c37d8d8671582ed5e17ce801280f587c3742aba7b478b79a338.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3936	34ff10730c9e4c37d8d8671582ed5e17ce801280f587c3742aba7b478b79a338.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3936	34ff10730c9e4c37d8d8671582ed5e17ce801280f587c3742aba7b478b79a338.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3936 wrote to memory of 2188	3936	34ff10730c9e4c37d8d8671582ed5e17ce801280f587c3742aba7b478b79a338.exe	86
PID 3936 wrote to memory of 2188	3936	34ff10730c9e4c37d8d8671582ed5e17ce801280f587c3742aba7b478b79a338.exe	86
PID 3936 wrote to memory of 2188	3936	34ff10730c9e4c37d8d8671582ed5e17ce801280f587c3742aba7b478b79a338.exe	86
PID 3936 wrote to memory of 3972	3936	34ff10730c9e4c37d8d8671582ed5e17ce801280f587c3742aba7b478b79a338.exe	88
PID 3936 wrote to memory of 3972	3936	34ff10730c9e4c37d8d8671582ed5e17ce801280f587c3742aba7b478b79a338.exe	88
PID 3936 wrote to memory of 3972	3936	34ff10730c9e4c37d8d8671582ed5e17ce801280f587c3742aba7b478b79a338.exe	88

C:\Users\Admin\AppData\Local\Temp\34ff10730c9e4c37d8d8671582ed5e17ce801280f587c3742aba7b478b79a338.exe
"C:\Users\Admin\AppData\Local\Temp\34ff10730c9e4c37d8d8671582ed5e17ce801280f587c3742aba7b478b79a338.exe"
1⤵
- Adds Run key to start application
- Checks whether UAC is enabled
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3936
- C:\Windows\SysWOW64\schtasks.exe
  "schtasks.exe" /create /f /tn "ARP Host" /xml "C:\Users\Admin\AppData\Local\Temp\tmp8647.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2188
- C:\Windows\SysWOW64\schtasks.exe
  "schtasks.exe" /create /f /tn "ARP Host Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp8696.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:3972

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

tmp8647.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmp8647.tmp
Size 1KB
SHA256 7df051e8a31ff5210a33b689513fa095f46c4643cd364f9f6e67dbd302174f4c
MD5 97cc659bd9cafdf1496e9f5e5fe81b8c
SHA1 8a9780ad3a2715505d9a11b5ef33b53d05e20ae2
SHA512 f09212e1bb24866e9136ff27ef91a4489ae33fa6446c398afdfae6d564af792411686115d0160506c485ed3b4e41a25aa4e0d04f120b9d51d5339f5a593573c8
MD5 SHA1 SHA512

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tmp8696.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmp8696.tmp
Size 1KB
SHA256 8d5304b20b7d7dea223ce2738e5668054250d57bf6bed86b305b69924bd472f5
MD5 447ab194ab36cb1d20078d80e502b1b2
SHA1 a947b3b2c91d7c50bb8d39bd4fc91a0d0cc5b1c0
SHA512 49ddc557f7f6635627eea9bf0fa12a14b7b13edb235ed560ee0044a7f87fe27b686ff878d347d0273d92eb0b318b8c2bca85c0fbf42d586ed7d7da39eac6a327
MD5 SHA1 SHA512

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memory/3936-0-0x0000000075182000-0x0000000075183000-memory.dmp

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memory/3936-1-0x0000000075180000-0x0000000075731000-memory.dmp

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memory/3936-2-0x0000000075180000-0x0000000075731000-memory.dmp

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memory/3936-10-0x0000000075180000-0x0000000075731000-memory.dmp

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memory/3936-11-0x0000000075182000-0x0000000075183000-memory.dmp

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memory/3936-12-0x0000000075180000-0x0000000075731000-memory.dmp

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memory/3936-13-0x0000000075180000-0x0000000075731000-memory.dmp

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memory/3936-14-0x0000000075180000-0x0000000075731000-memory.dmp

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