nanocore | 70494a9ed1d509c12c48aa4dc68f06f73bee77a18a625b576dd515e9f4e0d6c3

General

Target

10b98a933809918bfcdd9c1ea91edee6.exe
Size

636KB
MD5

10b98a933809918bfcdd9c1ea91edee6
SHA1

4e5f1555f8030aab3e98fe7ef31c8083ba9e32f2
SHA256

70494a9ed1d509c12c48aa4dc68f06f73bee77a18a625b576dd515e9f4e0d6c3
SHA512

d5b735529dcc61cc92d2ca93a1b477f9e08901e903847ad68d9d63547c46f5d16f29deb3e329a981068be866167df4eeecf2f14f30ae04501b327c6aff6b2dac
SSDEEP

12288:sMfzumQeZXgZ2KsYEPpU0TET/BSqxTsJXVl+N84xXF7NPTZW:ssnlwQgEPpUOEdpdSVlD4xVJPTc

Score

10^/10

nanocore discovery evasion execution keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

66.63.187.113:1664

Mutex

a376f716-2f77-4943-a431-3a3bcb53b7c0

Attributes

activate_away_mode
true
backup_connection_host
66.63.187.113
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2024-08-05T03:49:33.827385136Z
bypass_user_account_control
false
bypass_user_account_control_data
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
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
1664
default_group
CAT
enable_debug_mode
true
gc_threshold
1.048576e+07
keep_alive_timeout
30000
keyboard_logging
false
lan_timeout
2500
max_packet_size
1.048576e+07
mutex
a376f716-2f77-4943-a431-3a3bcb53b7c0
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
66.63.187.113
primary_dns_server
8.8.8.8
request_elevation
true
restart_delay
5000
run_delay
0
run_on_startup
false
set_critical_process
true
timeout_interval
5000
use_custom_dns_server
false
version
1.2.2.0
wan_timeout
8000

Signatures

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

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

Processes:

powershell.exe

pid	Process
2936	powershell.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

10b98a933809918bfcdd9c1ea91edee6.exe

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\IMAP Monitor = "C:\\Program Files (x86)\\IMAP Monitor\\imapmon.exe"	10b98a933809918bfcdd9c1ea91edee6.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

10b98a933809918bfcdd9c1ea91edee6.exe

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	10b98a933809918bfcdd9c1ea91edee6.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

10b98a933809918bfcdd9c1ea91edee6.exe

description	pid	Process	procid_target
PID 2548 set thread context of 2716	2548	10b98a933809918bfcdd9c1ea91edee6.exe	32

Drops file in Program Files directory 2 IoCs

Processes:

10b98a933809918bfcdd9c1ea91edee6.exe

description	ioc	Process
File created	C:\Program Files (x86)\IMAP Monitor\imapmon.exe	10b98a933809918bfcdd9c1ea91edee6.exe
File opened for modification	C:\Program Files (x86)\IMAP Monitor\imapmon.exe	10b98a933809918bfcdd9c1ea91edee6.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 5 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

Processes:

schtasks.exe10b98a933809918bfcdd9c1ea91edee6.exe10b98a933809918bfcdd9c1ea91edee6.exepowershell.exeschtasks.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	10b98a933809918bfcdd9c1ea91edee6.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	10b98a933809918bfcdd9c1ea91edee6.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.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

Processes:

schtasks.exeschtasks.exe

pid	Process
2248	schtasks.exe
2676	schtasks.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

Processes:

10b98a933809918bfcdd9c1ea91edee6.exepowershell.exe10b98a933809918bfcdd9c1ea91edee6.exe

pid	Process
2548	10b98a933809918bfcdd9c1ea91edee6.exe
2548	10b98a933809918bfcdd9c1ea91edee6.exe
2548	10b98a933809918bfcdd9c1ea91edee6.exe
2936	powershell.exe
2716	10b98a933809918bfcdd9c1ea91edee6.exe
2716	10b98a933809918bfcdd9c1ea91edee6.exe
2716	10b98a933809918bfcdd9c1ea91edee6.exe
2716	10b98a933809918bfcdd9c1ea91edee6.exe
2716	10b98a933809918bfcdd9c1ea91edee6.exe
2716	10b98a933809918bfcdd9c1ea91edee6.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

10b98a933809918bfcdd9c1ea91edee6.exe

pid	Process
2716	10b98a933809918bfcdd9c1ea91edee6.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

10b98a933809918bfcdd9c1ea91edee6.exepowershell.exe10b98a933809918bfcdd9c1ea91edee6.exe

description	pid	Process
Token: SeDebugPrivilege	2548	10b98a933809918bfcdd9c1ea91edee6.exe
Token: SeDebugPrivilege	2936	powershell.exe
Token: SeDebugPrivilege	2716	10b98a933809918bfcdd9c1ea91edee6.exe

Suspicious use of WriteProcessMemory 21 IoCs

Processes:

10b98a933809918bfcdd9c1ea91edee6.exe10b98a933809918bfcdd9c1ea91edee6.exe

description	pid	Process	procid_target
PID 2548 wrote to memory of 2936	2548	10b98a933809918bfcdd9c1ea91edee6.exe	31
PID 2548 wrote to memory of 2936	2548	10b98a933809918bfcdd9c1ea91edee6.exe	31
PID 2548 wrote to memory of 2936	2548	10b98a933809918bfcdd9c1ea91edee6.exe	31
PID 2548 wrote to memory of 2936	2548	10b98a933809918bfcdd9c1ea91edee6.exe	31
PID 2548 wrote to memory of 2716	2548	10b98a933809918bfcdd9c1ea91edee6.exe	32
PID 2548 wrote to memory of 2716	2548	10b98a933809918bfcdd9c1ea91edee6.exe	32
PID 2548 wrote to memory of 2716	2548	10b98a933809918bfcdd9c1ea91edee6.exe	32
PID 2548 wrote to memory of 2716	2548	10b98a933809918bfcdd9c1ea91edee6.exe	32
PID 2548 wrote to memory of 2716	2548	10b98a933809918bfcdd9c1ea91edee6.exe	32
PID 2548 wrote to memory of 2716	2548	10b98a933809918bfcdd9c1ea91edee6.exe	32
PID 2548 wrote to memory of 2716	2548	10b98a933809918bfcdd9c1ea91edee6.exe	32
PID 2548 wrote to memory of 2716	2548	10b98a933809918bfcdd9c1ea91edee6.exe	32
PID 2548 wrote to memory of 2716	2548	10b98a933809918bfcdd9c1ea91edee6.exe	32
PID 2716 wrote to memory of 2248	2716	10b98a933809918bfcdd9c1ea91edee6.exe	34
PID 2716 wrote to memory of 2248	2716	10b98a933809918bfcdd9c1ea91edee6.exe	34
PID 2716 wrote to memory of 2248	2716	10b98a933809918bfcdd9c1ea91edee6.exe	34
PID 2716 wrote to memory of 2248	2716	10b98a933809918bfcdd9c1ea91edee6.exe	34
PID 2716 wrote to memory of 2676	2716	10b98a933809918bfcdd9c1ea91edee6.exe	36
PID 2716 wrote to memory of 2676	2716	10b98a933809918bfcdd9c1ea91edee6.exe	36
PID 2716 wrote to memory of 2676	2716	10b98a933809918bfcdd9c1ea91edee6.exe	36
PID 2716 wrote to memory of 2676	2716	10b98a933809918bfcdd9c1ea91edee6.exe	36

C:\Users\Admin\AppData\Local\Temp\10b98a933809918bfcdd9c1ea91edee6.exe
"C:\Users\Admin\AppData\Local\Temp\10b98a933809918bfcdd9c1ea91edee6.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2548
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\10b98a933809918bfcdd9c1ea91edee6.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2936
- C:\Users\Admin\AppData\Local\Temp\10b98a933809918bfcdd9c1ea91edee6.exe
  "C:\Users\Admin\AppData\Local\Temp\10b98a933809918bfcdd9c1ea91edee6.exe"
  2⤵
  - 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:2716
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "IMAP Monitor" /xml "C:\Users\Admin\AppData\Local\Temp\tmpDCD7.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2248
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "IMAP Monitor Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpDE11.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2676

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpDCD7.tmp

Filesize
1KB

MD5
3f789993a3cf6d40085f2cea34da2f1e

SHA1
d2dce7dfd910ec3b37c4656315873dc159daa848

SHA256
e2fef2bd38d09f8410f9d3271e920842335dd4b2a76000f25ea11eb95e56ecae

SHA512
17399f97406c4b5b3cc6e0e1d3ac4892e2e7911ab0f0ce4c67759e828c008bd4e29bdba93ee3ca37aa117e567cc6b10193ba755baca4c4c0bc73b39d96b0fbe5

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpDE11.tmp

Filesize
1KB

MD5
d2d6911d94b06e405e7687a2437eafec

SHA1
9f28f9e7d8d5179d44ddaa6ca266984ed7521dea

SHA256
2dc87169ad53fbdd7abb08f49777cb8fb05adbff4e6f6616b4c89942af8cad0f

SHA512
b5983de701ff98e944283a25f1770c1e792d52148dc1671f1d19203f8b9d10b056abcf79a17ca536a5f88ccf52f6445d8f3e75fce628666640ad8bad697dcfd1

Download Submit
memory/2548-23-0x00000000740A0000-0x000000007478E000-memory.dmp

Filesize
6.9MB

Download
memory/2548-1-0x0000000000FB0000-0x0000000001056000-memory.dmp

Filesize
664KB

Download
memory/2548-2-0x00000000740A0000-0x000000007478E000-memory.dmp

Filesize
6.9MB

Download
memory/2548-3-0x0000000000550000-0x000000000056E000-memory.dmp

Filesize
120KB

Download
memory/2548-4-0x00000000740AE000-0x00000000740AF000-memory.dmp

Filesize
4KB

Download
memory/2548-5-0x00000000740A0000-0x000000007478E000-memory.dmp

Filesize
6.9MB

Download
memory/2548-6-0x00000000002D0000-0x000000000034A000-memory.dmp

Filesize
488KB

Download
memory/2548-0-0x00000000740AE000-0x00000000740AF000-memory.dmp

Filesize
4KB

Download
memory/2716-17-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2716-39-0x00000000006F0000-0x0000000000702000-memory.dmp

Filesize
72KB

Download
memory/2716-11-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2716-9-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2716-7-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2716-22-0x00000000740A0000-0x000000007478E000-memory.dmp

Filesize
6.9MB

Download
memory/2716-15-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2716-24-0x00000000740A0000-0x000000007478E000-memory.dmp

Filesize
6.9MB

Download
memory/2716-19-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2716-21-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2716-34-0x0000000000450000-0x000000000045A000-memory.dmp

Filesize
40KB

Download
memory/2716-35-0x0000000000460000-0x000000000047E000-memory.dmp

Filesize
120KB

Download
memory/2716-36-0x0000000000480000-0x000000000048A000-memory.dmp

Filesize
40KB

Download
memory/2716-13-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2716-40-0x0000000000750000-0x000000000076A000-memory.dmp

Filesize
104KB

Download
memory/2716-41-0x0000000000AA0000-0x0000000000AAE000-memory.dmp

Filesize
56KB

Download
memory/2716-42-0x0000000000B70000-0x0000000000B82000-memory.dmp

Filesize
72KB

Download
memory/2716-44-0x0000000000CC0000-0x0000000000CCE000-memory.dmp

Filesize
56KB

Download
memory/2716-43-0x0000000000CB0000-0x0000000000CBC000-memory.dmp

Filesize
48KB

Download
memory/2716-46-0x0000000000D20000-0x0000000000D30000-memory.dmp

Filesize
64KB

Download
memory/2716-45-0x0000000000CD0000-0x0000000000CE4000-memory.dmp

Filesize
80KB

Download
memory/2716-47-0x0000000000D30000-0x0000000000D44000-memory.dmp

Filesize
80KB

Download
memory/2716-48-0x0000000000D40000-0x0000000000D4E000-memory.dmp

Filesize
56KB

Download
memory/2716-49-0x0000000004E80000-0x0000000004EAE000-memory.dmp

Filesize
184KB

Download
memory/2716-50-0x0000000000F60000-0x0000000000F74000-memory.dmp

Filesize
80KB

Download
memory/2716-52-0x00000000740A0000-0x000000007478E000-memory.dmp

Filesize
6.9MB

Download
memory/2716-53-0x00000000740A0000-0x000000007478E000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads