nanocore | 3c4e4bfa14ccb528331fafd98accf22ca640b3d251f45859c4427df56614bcf2

Resubmissions

03/08/2024, 17:27

240803-v1gghazelp10

02/08/2024, 21:54

240802-1sdzassajk10

Analysis

max time kernel
133s
max time network
142s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
03/08/2024, 17:27

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General

Target
sever.exe
Size 203KB
Sample240803-v1gghazelp
SHA256 3c4e4bfa14ccb528331fafd98accf22ca640b3d251f45859c4427df56614bcf2
MD5 d8158104745439bf75e071b4305b14cf
SHA1 24ad4d25061233c6266ac6c8dfe14e9120ff37e8
SHA512 b0072a56bb7a4bbdcfb7a93e14732a49cf726a5b51240f1f612d056c9e06c00b53f776ec31c63ca0e2d1ac868beba1eed4035bd5a119f7acc773b54de7fd98b9
SSDEEP 3072:MzEqV6B1jHa6dtJ10jgvzcgi+oG/j9iaMP2s/HIHSQYusdrK6ymbcYmRriGNnD:MLV6Bta6dtJmakIM51ax0cYgrimD
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

nanocore discovery evasion keylogger spyware stealer trojan

Malware Config

Signatures

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

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	sever.exe

System Location Discovery: System Language Discovery 1 TTPs 2 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	sever.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

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

persistence execution

Scheduled Task

T1053.005

pid	Process
3252	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
4484	sever.exe
4484	sever.exe
4484	sever.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4484	sever.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4484	sever.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4484 wrote to memory of 3252	4484	sever.exe	86
PID 4484 wrote to memory of 3252	4484	sever.exe	86
PID 4484 wrote to memory of 3252	4484	sever.exe	86

C:\Users\Admin\AppData\Local\Temp\sever.exe
"C:\Users\Admin\AppData\Local\Temp\sever.exe"
1⤵
- Checks whether UAC is enabled
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4484
- C:\Windows\SysWOW64\schtasks.exe
  "schtasks.exe" /create /f /tn "DDP Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmp77C0.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:3252

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

tmp77C0.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmp77C0.tmp
Size 1KB
SHA256 71352e7fb7fe395e13d5be76a2d8aa8308d535519d1f7b5a05a09874073bae89
MD5 009127cd7edf551083a086d4eec66560
SHA1 98d6877de6d7eb0a93fa58fb0303412c1dda7458
SHA512 b58ea76815d34629cfddc0067e5e5896a328d4baffe7c4c8a45a158cca0be54ade114b2dbf33cab4fd96769b2658b96c4f358b04c182c5fbcf00db8cb7d26054
MD5 SHA1 SHA512

Submit Download

memory/4484-0-0x00000000749C2000-0x00000000749C3000-memory.dmp

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memory/4484-1-0x00000000749C0000-0x0000000074F71000-memory.dmp

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memory/4484-2-0x00000000749C0000-0x0000000074F71000-memory.dmp

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memory/4484-7-0x00000000749C0000-0x0000000074F71000-memory.dmp

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memory/4484-8-0x00000000749C2000-0x00000000749C3000-memory.dmp

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memory/4484-9-0x00000000749C0000-0x0000000074F71000-memory.dmp

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memory/4484-10-0x00000000749C0000-0x0000000074F71000-memory.dmp

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