nanocore | 674427173a5e079caa90209387e6131f19ebafea2f2a0b7c580fa8ea7d4eaa45

General

Target

tcpmgr.exe
Size

598KB
MD5

991132ddc79bd645dc6264f86358f724
SHA1

9bf9fcfbc256179ffcefaf215ee266ddeb535f0e
SHA256

674427173a5e079caa90209387e6131f19ebafea2f2a0b7c580fa8ea7d4eaa45
SHA512

8ff72e2d1420d0bacc9c0e1111312c09bfbb0a61ca14d11f2d7da4ec1fa82116e655d6cf5feec7463d57b8092ad4fbed547b63fdba6b453001b3b7b078be107f
SSDEEP

12288:Ajsj3HbgUeFedrkXmew74UCesjuCC37sDiXD/FhfgUT+MzYjMv43xK4ENzQK:dT7gUeirkX5wU31VC1Fhf/vUjMQ3rEN

Score

10^/10

nanocore discovery evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

6coinc.zapto.org:6696

127.0.0.1:6696

Mutex

dc5ce709-95b6-4a26-9175-16a1a8446828

Attributes

activate_away_mode
true
backup_connection_host
127.0.0.1
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2023-09-03T02:07:11.731490736Z
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
6696
default_group
6coinc
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
dc5ce709-95b6-4a26-9175-16a1a8446828
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
6coinc.zapto.org
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

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"	tcpmgr.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	tcpmgr.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1124 set thread context of 2256	1124	tcpmgr.exe	94
PID 3152 set thread context of 5020	3152	tcpmgr.exe	110

Drops file in Program Files directory 2 IoCs

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

System Location Discovery: System Language Discovery 1 TTPs 6 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	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	tcpmgr.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	tcpmgr.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	tcpmgr.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	tcpmgr.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
540	schtasks.exe
2240	schtasks.exe

Suspicious behavior: EnumeratesProcesses 17 IoCs

pid	Process
2256	tcpmgr.exe
2256	tcpmgr.exe
2256	tcpmgr.exe
2256	tcpmgr.exe
2256	tcpmgr.exe
2256	tcpmgr.exe
2256	tcpmgr.exe
2256	tcpmgr.exe
2256	tcpmgr.exe
2256	tcpmgr.exe
2256	tcpmgr.exe
2256	tcpmgr.exe
2256	tcpmgr.exe
2256	tcpmgr.exe
2256	tcpmgr.exe
3152	tcpmgr.exe
3152	tcpmgr.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2256	tcpmgr.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2256	tcpmgr.exe
Token: SeDebugPrivilege	3152	tcpmgr.exe

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 1124 wrote to memory of 2256	1124	tcpmgr.exe	94
PID 1124 wrote to memory of 2256	1124	tcpmgr.exe	94
PID 1124 wrote to memory of 2256	1124	tcpmgr.exe	94
PID 1124 wrote to memory of 2256	1124	tcpmgr.exe	94
PID 1124 wrote to memory of 2256	1124	tcpmgr.exe	94
PID 1124 wrote to memory of 2256	1124	tcpmgr.exe	94
PID 1124 wrote to memory of 2256	1124	tcpmgr.exe	94
PID 1124 wrote to memory of 2256	1124	tcpmgr.exe	94
PID 2256 wrote to memory of 540	2256	tcpmgr.exe	95
PID 2256 wrote to memory of 540	2256	tcpmgr.exe	95
PID 2256 wrote to memory of 540	2256	tcpmgr.exe	95
PID 2256 wrote to memory of 2240	2256	tcpmgr.exe	97
PID 2256 wrote to memory of 2240	2256	tcpmgr.exe	97
PID 2256 wrote to memory of 2240	2256	tcpmgr.exe	97
PID 3152 wrote to memory of 872	3152	tcpmgr.exe	109
PID 3152 wrote to memory of 872	3152	tcpmgr.exe	109
PID 3152 wrote to memory of 872	3152	tcpmgr.exe	109
PID 3152 wrote to memory of 5020	3152	tcpmgr.exe	110
PID 3152 wrote to memory of 5020	3152	tcpmgr.exe	110
PID 3152 wrote to memory of 5020	3152	tcpmgr.exe	110
PID 3152 wrote to memory of 5020	3152	tcpmgr.exe	110
PID 3152 wrote to memory of 5020	3152	tcpmgr.exe	110
PID 3152 wrote to memory of 5020	3152	tcpmgr.exe	110
PID 3152 wrote to memory of 5020	3152	tcpmgr.exe	110
PID 3152 wrote to memory of 5020	3152	tcpmgr.exe	110

C:\Users\Admin\AppData\Local\Temp\tcpmgr.exe
"C:\Users\Admin\AppData\Local\Temp\tcpmgr.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1124
- C:\Users\Admin\AppData\Local\Temp\tcpmgr.exe
  "C:\Users\Admin\AppData\Local\Temp\tcpmgr.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:2256
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "ARP Host" /xml "C:\Users\Admin\AppData\Local\Temp\tmpC97A.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:540
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "ARP Host Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpC9C9.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2240

C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
1⤵
PID:1552

C:\Users\Admin\AppData\Local\Temp\tcpmgr.exe
"C:\Users\Admin\AppData\Local\Temp\tcpmgr.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3152
- C:\Users\Admin\AppData\Local\Temp\tcpmgr.exe
  "C:\Users\Admin\AppData\Local\Temp\tcpmgr.exe"
  2⤵
  PID:872
- C:\Users\Admin\AppData\Local\Temp\tcpmgr.exe
  "C:\Users\Admin\AppData\Local\Temp\tcpmgr.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:5020

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

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

1

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\Microsoft\CLR_v4.0_32\UsageLogs\tcpmgr.exe.log

Filesize
1KB

MD5
8ec831f3e3a3f77e4a7b9cd32b48384c

SHA1
d83f09fd87c5bd86e045873c231c14836e76a05c

SHA256
7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

SHA512
26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpC97A.tmp

Filesize
1KB

MD5
be8bd51774d7b8f16d4e6e3da2c1469d

SHA1
4398fc3db53cd0e2b34c263259f046fc782f9d5c

SHA256
70747611bb99139f01e3bc50a6bb31576a65ed6730470dd0555d79bd18bf8fd5

SHA512
2bad1fd5ad1049827ef456e345854bf6bafb1c05349b9159bd07fac1ff59f6be5b920e3af1d616cd094c81b9ac8033e5e0052bb25ad3f6eda0707f0150f36c75

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpC9C9.tmp

Filesize
1KB

MD5
447ab194ab36cb1d20078d80e502b1b2

SHA1
a947b3b2c91d7c50bb8d39bd4fc91a0d0cc5b1c0

SHA256
8d5304b20b7d7dea223ce2738e5668054250d57bf6bed86b305b69924bd472f5

SHA512
49ddc557f7f6635627eea9bf0fa12a14b7b13edb235ed560ee0044a7f87fe27b686ff878d347d0273d92eb0b318b8c2bca85c0fbf42d586ed7d7da39eac6a327

Download Submit
memory/1124-6-0x0000000007E10000-0x0000000007E28000-memory.dmp

Filesize
96KB

Download
memory/1124-3-0x0000000005480000-0x0000000005512000-memory.dmp

Filesize
584KB

Download
memory/1124-5-0x0000000005470000-0x000000000547A000-memory.dmp

Filesize
40KB

Download
memory/1124-0-0x0000000074F9E000-0x0000000074F9F000-memory.dmp

Filesize
4KB

Download
memory/1124-7-0x00000000057D0000-0x00000000057D6000-memory.dmp

Filesize
24KB

Download
memory/1124-8-0x0000000074F9E000-0x0000000074F9F000-memory.dmp

Filesize
4KB

Download
memory/1124-9-0x0000000074F90000-0x0000000075740000-memory.dmp

Filesize
7.7MB

Download
memory/1124-10-0x0000000002CD0000-0x0000000002CDA000-memory.dmp

Filesize
40KB

Download
memory/1124-11-0x00000000068A0000-0x0000000006912000-memory.dmp

Filesize
456KB

Download
memory/1124-12-0x000000000B4A0000-0x000000000B53C000-memory.dmp

Filesize
624KB

Download
memory/1124-1-0x00000000009D0000-0x0000000000A6C000-memory.dmp

Filesize
624KB

Download
memory/1124-4-0x0000000074F90000-0x0000000075740000-memory.dmp

Filesize
7.7MB

Download
memory/1124-2-0x0000000005990000-0x0000000005F34000-memory.dmp

Filesize
5.6MB

Download
memory/1124-17-0x0000000074F90000-0x0000000075740000-memory.dmp

Filesize
7.7MB

Download
memory/2256-18-0x0000000074F90000-0x0000000075740000-memory.dmp

Filesize
7.7MB

Download
memory/2256-16-0x0000000074F90000-0x0000000075740000-memory.dmp

Filesize
7.7MB

Download
memory/2256-13-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2256-26-0x00000000059A0000-0x00000000059AA000-memory.dmp

Filesize
40KB

Download
memory/2256-27-0x00000000059B0000-0x00000000059CE000-memory.dmp

Filesize
120KB

Download
memory/2256-28-0x0000000006AA0000-0x0000000006AAA000-memory.dmp

Filesize
40KB

Download
memory/2256-29-0x0000000074F90000-0x0000000075740000-memory.dmp

Filesize
7.7MB

Download
memory/2256-30-0x0000000074F90000-0x0000000075740000-memory.dmp

Filesize
7.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads