nanocore | f70d508424598e71e6fe5eb5bb67b24b103b6367b3e55f550f53ea313f5bc30a

General

Target

INVOICE 3 PDF.exe
Size

1.0MB
MD5

d87d7f6be88880706139d5e6f0c0f7f9
SHA1

87216afc35387e772ad0ae64345bbdefcac0a20d
SHA256

f5bcd2fd2900aa6fa196430500420438ebe1016aa58e5c8d4c68fdc1d37f48ad
SHA512

03e174545c164cba75309f92927fe01550f320baa34f841a816c2516baa107e1836e12877bd4cc953b81b46a355537ade0f5c0bf5cbb99ff392eafe852be70a1
SSDEEP

24576:pD4V6LzjOqCvxK6p7r+0ZgFcsc2vbMJ8w8H:p0VDnvxnp3+0Zg1Bwq

Score

10^/10

nanocore discovery keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

nomansland.ddns.net:6122

Mutex

57ed101c-9ee2-41fa-87c0-8c37db84ae48

Attributes

activate_away_mode
true
backup_connection_host
nomansland.ddns.net
backup_dns_server
84.200.70.40
buffer_size
65535
build_time
2021-10-28T20:30:32.778373036Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
6122
default_group
Fula
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
57ed101c-9ee2-41fa-87c0-8c37db84ae48
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
primary_dns_server
84.200.69.80
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

Unexpected DNS network traffic destination 25 IoCs

Network traffic to other servers than the configured DNS servers was detected on the DNS port.

description	ioc
Destination IP	84.200.69.80
Destination IP	84.200.69.80
Destination IP	84.200.69.80
Destination IP	84.200.69.80
Destination IP	84.200.69.80
Destination IP	84.200.69.80
Destination IP	84.200.69.80
Destination IP	84.200.69.80
Destination IP	84.200.69.80
Destination IP	84.200.69.80
Destination IP	84.200.69.80
Destination IP	84.200.69.80
Destination IP	84.200.69.80
Destination IP	84.200.69.80
Destination IP	84.200.69.80
Destination IP	84.200.69.80
Destination IP	84.200.69.80
Destination IP	84.200.69.80
Destination IP	84.200.69.80
Destination IP	84.200.69.80
Destination IP	84.200.69.80
Destination IP	84.200.69.80
Destination IP	84.200.69.80
Destination IP	84.200.69.80
Destination IP	84.200.69.80

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\IMAP Monitor = "C:\\Program Files (x86)\\IMAP Monitor\\imapmon.exe"	MSBuild.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2556 set thread context of 2768	2556	INVOICE 3 PDF.exe	31

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\IMAP Monitor\imapmon.exe	MSBuild.exe
File opened for modification	C:\Program Files (x86)\IMAP Monitor\imapmon.exe	MSBuild.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	MSBuild.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	INVOICE 3 PDF.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2768	MSBuild.exe
2768	MSBuild.exe
2768	MSBuild.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2768	MSBuild.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2768	MSBuild.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2556	INVOICE 3 PDF.exe
2556	INVOICE 3 PDF.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2556 wrote to memory of 2768	2556	INVOICE 3 PDF.exe	31
PID 2556 wrote to memory of 2768	2556	INVOICE 3 PDF.exe	31
PID 2556 wrote to memory of 2768	2556	INVOICE 3 PDF.exe	31
PID 2556 wrote to memory of 2768	2556	INVOICE 3 PDF.exe	31
PID 2556 wrote to memory of 2768	2556	INVOICE 3 PDF.exe	31
PID 2556 wrote to memory of 2768	2556	INVOICE 3 PDF.exe	31
PID 2556 wrote to memory of 2768	2556	INVOICE 3 PDF.exe	31
PID 2556 wrote to memory of 2768	2556	INVOICE 3 PDF.exe	31
PID 2556 wrote to memory of 2768	2556	INVOICE 3 PDF.exe	31

C:\Users\Admin\AppData\Local\Temp\INVOICE 3 PDF.exe
"C:\Users\Admin\AppData\Local\Temp\INVOICE 3 PDF.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2556
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
  2⤵
  - Adds Run key to start application
  - Drops file in Program Files directory
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  PID:2768

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

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

memory/2556-0-0x000000007452E000-0x000000007452F000-memory.dmp

Filesize
4KB

Download
memory/2556-1-0x0000000000960000-0x0000000000A68000-memory.dmp

Filesize
1.0MB

Download
memory/2556-2-0x0000000074520000-0x0000000074C0E000-memory.dmp

Filesize
6.9MB

Download
memory/2556-4-0x0000000074520000-0x0000000074C0E000-memory.dmp

Filesize
6.9MB

Download
memory/2556-3-0x00000000004D0000-0x00000000004E0000-memory.dmp

Filesize
64KB

Download
memory/2556-5-0x0000000074520000-0x0000000074C0E000-memory.dmp

Filesize
6.9MB

Download
memory/2556-6-0x0000000074520000-0x0000000074C0E000-memory.dmp

Filesize
6.9MB

Download
memory/2556-7-0x000000007452E000-0x000000007452F000-memory.dmp

Filesize
4KB

Download
memory/2556-8-0x0000000074520000-0x0000000074C0E000-memory.dmp

Filesize
6.9MB

Download
memory/2556-9-0x0000000008730000-0x00000000087FE000-memory.dmp

Filesize
824KB

Download
memory/2556-10-0x0000000004AE0000-0x0000000004B30000-memory.dmp

Filesize
320KB

Download
memory/2556-23-0x0000000074520000-0x0000000074C0E000-memory.dmp

Filesize
6.9MB

Download
memory/2768-15-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2768-18-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2768-11-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2768-24-0x0000000074520000-0x0000000074C0E000-memory.dmp

Filesize
6.9MB

Download
memory/2768-16-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2768-22-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2768-20-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2768-13-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2768-17-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/2768-25-0x0000000074520000-0x0000000074C0E000-memory.dmp

Filesize
6.9MB

Download
memory/2768-28-0x0000000000680000-0x000000000068A000-memory.dmp

Filesize
40KB

Download
memory/2768-29-0x00000000006D0000-0x00000000006EE000-memory.dmp

Filesize
120KB

Download
memory/2768-30-0x00000000006F0000-0x00000000006FA000-memory.dmp

Filesize
40KB

Download
memory/2768-31-0x0000000074520000-0x0000000074C0E000-memory.dmp

Filesize
6.9MB

Download
memory/2768-32-0x0000000074520000-0x0000000074C0E000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads