nanocore | 1901aa2af0b5349f1b1e2891944467a052725e89d04c81ab739374f06dfba2a4

General

Target

4526708506905e4cdd974c704dfb1ae2.exe
Size

614KB
MD5

4526708506905e4cdd974c704dfb1ae2
SHA1

5041c516eb1169a5dead881cf185065a8bb1271c
SHA256

1901aa2af0b5349f1b1e2891944467a052725e89d04c81ab739374f06dfba2a4
SHA512

5484061f9d31cecf6a6904804c7152e61048a03dd7cc050eb0c29ea59e89ba896d7b0dfec6698840618266b345fd2980946d150c83856cab0fdb521d01d6b5d1
SSDEEP

12288:5JaTn+bvjTyl+/eRhlKr/a5mQK6APl6227TVG+o+:5Jhjel+WvewK6bx7TVG+v

Score

10^/10

nanocore evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

wywtrwbnmhtytrebsgwtfcvzcxgjhyegvbcnmgte.ydns.eu:2486

Mutex

38e550b1-749b-4070-a891-ba3703218cb4

Attributes

activate_away_mode
true
backup_connection_host
wywtrwbnmhtytrebsgwtfcvzcxgjhyegvbcnmgte.ydns.eu
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2020-12-05T22:55:32.707339436Z
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
2486
default_group
Default
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
38e550b1-749b-4070-a891-ba3703218cb4
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
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

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\TCP Service = "C:\\Program Files (x86)\\TCP Service\\tcpsv.exe"	4526708506905e4cdd974c704dfb1ae2.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	4526708506905e4cdd974c704dfb1ae2.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1960 set thread context of 2664	1960	4526708506905e4cdd974c704dfb1ae2.exe	32

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\TCP Service\tcpsv.exe	4526708506905e4cdd974c704dfb1ae2.exe
File opened for modification	C:\Program Files (x86)\TCP Service\tcpsv.exe	4526708506905e4cdd974c704dfb1ae2.exe

Creates scheduled task(s) 1 TTPs 2 IoCs

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

persistence

Scheduled Task/Job

T1053

pid	Process
2608	schtasks.exe
2616	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1960	4526708506905e4cdd974c704dfb1ae2.exe
2664	4526708506905e4cdd974c704dfb1ae2.exe
2664	4526708506905e4cdd974c704dfb1ae2.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2664	4526708506905e4cdd974c704dfb1ae2.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1960	4526708506905e4cdd974c704dfb1ae2.exe
Token: SeDebugPrivilege	2664	4526708506905e4cdd974c704dfb1ae2.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 1960 wrote to memory of 2648	1960	4526708506905e4cdd974c704dfb1ae2.exe	33
PID 1960 wrote to memory of 2648	1960	4526708506905e4cdd974c704dfb1ae2.exe	33
PID 1960 wrote to memory of 2648	1960	4526708506905e4cdd974c704dfb1ae2.exe	33
PID 1960 wrote to memory of 2648	1960	4526708506905e4cdd974c704dfb1ae2.exe	33
PID 1960 wrote to memory of 2664	1960	4526708506905e4cdd974c704dfb1ae2.exe	32
PID 1960 wrote to memory of 2664	1960	4526708506905e4cdd974c704dfb1ae2.exe	32
PID 1960 wrote to memory of 2664	1960	4526708506905e4cdd974c704dfb1ae2.exe	32
PID 1960 wrote to memory of 2664	1960	4526708506905e4cdd974c704dfb1ae2.exe	32
PID 1960 wrote to memory of 2664	1960	4526708506905e4cdd974c704dfb1ae2.exe	32
PID 1960 wrote to memory of 2664	1960	4526708506905e4cdd974c704dfb1ae2.exe	32
PID 1960 wrote to memory of 2664	1960	4526708506905e4cdd974c704dfb1ae2.exe	32
PID 1960 wrote to memory of 2664	1960	4526708506905e4cdd974c704dfb1ae2.exe	32
PID 1960 wrote to memory of 2664	1960	4526708506905e4cdd974c704dfb1ae2.exe	32
PID 2664 wrote to memory of 2608	2664	4526708506905e4cdd974c704dfb1ae2.exe	28
PID 2664 wrote to memory of 2608	2664	4526708506905e4cdd974c704dfb1ae2.exe	28
PID 2664 wrote to memory of 2608	2664	4526708506905e4cdd974c704dfb1ae2.exe	28
PID 2664 wrote to memory of 2608	2664	4526708506905e4cdd974c704dfb1ae2.exe	28
PID 2664 wrote to memory of 2616	2664	4526708506905e4cdd974c704dfb1ae2.exe	30
PID 2664 wrote to memory of 2616	2664	4526708506905e4cdd974c704dfb1ae2.exe	30
PID 2664 wrote to memory of 2616	2664	4526708506905e4cdd974c704dfb1ae2.exe	30
PID 2664 wrote to memory of 2616	2664	4526708506905e4cdd974c704dfb1ae2.exe	30

C:\Users\Admin\AppData\Local\Temp\4526708506905e4cdd974c704dfb1ae2.exe
"C:\Users\Admin\AppData\Local\Temp\4526708506905e4cdd974c704dfb1ae2.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1960
- C:\Users\Admin\AppData\Local\Temp\4526708506905e4cdd974c704dfb1ae2.exe
  "{path}"
  2⤵
  - Adds Run key to start application
  - Checks whether UAC is enabled
  - Drops file in Program Files directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2664
- C:\Users\Admin\AppData\Local\Temp\4526708506905e4cdd974c704dfb1ae2.exe
  "{path}"
  2⤵
  PID:2648

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "TCP Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmp7E54.tmp"
1⤵
- Creates scheduled task(s)
PID:2608

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "TCP Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp7ED2.tmp"
1⤵
- Creates scheduled task(s)
PID:2616

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

Scheduled Task/Job

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

Scheduled Task/Job

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1960-17-0x0000000074D60000-0x000000007530B000-memory.dmp

Filesize
5.7MB

Download
memory/1960-2-0x0000000000270000-0x00000000002B0000-memory.dmp

Filesize
256KB

Download
memory/1960-1-0x0000000074D60000-0x000000007530B000-memory.dmp

Filesize
5.7MB

Download
memory/1960-3-0x0000000074D60000-0x000000007530B000-memory.dmp

Filesize
5.7MB

Download
memory/1960-4-0x0000000000270000-0x00000000002B0000-memory.dmp

Filesize
256KB

Download
memory/1960-0-0x0000000074D60000-0x000000007530B000-memory.dmp

Filesize
5.7MB

Download
memory/2664-16-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2664-19-0x0000000074D60000-0x000000007530B000-memory.dmp

Filesize
5.7MB

Download
memory/2664-22-0x0000000000A90000-0x0000000000AD0000-memory.dmp

Filesize
256KB

Download
memory/2664-24-0x0000000074D60000-0x000000007530B000-memory.dmp

Filesize
5.7MB

Download
memory/2664-14-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2664-12-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2664-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2664-9-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2664-8-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2664-7-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2664-5-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2664-29-0x0000000000A90000-0x0000000000AD0000-memory.dmp

Filesize
256KB

Download
memory/2664-28-0x0000000074D60000-0x000000007530B000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads