nanocore | b3e46aec1efa78debec55d76effbdbe80b1bb37dcdd0909c5429830c155bae24

General

Target

f674a21da9dd26cc1f1cface03062cdd_JaffaCakes118.exe
Size

611KB
MD5

f674a21da9dd26cc1f1cface03062cdd
SHA1

eb6093be0b0df9e63db9c33fbd197c9ee39a491e
SHA256

b3e46aec1efa78debec55d76effbdbe80b1bb37dcdd0909c5429830c155bae24
SHA512

68f45bddd2ed1515d07762dfb012329a4d9a4ab0e19fb9850351930e9818207d9edf0b9d1de38199f33062aca13f34385d1c04d8bd72f50dc7f4caa238e4541d
SSDEEP

12288:+MEolJm/i35dNaAVlrPDA7JtCtyynJHJT6YashlM0JT6YashlM:q6Jm/odzVtbA7akIx9ashlV9ashl

Score

10^/10

nanocore discovery evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

kamuchehddhgfgf.ddns.net:1187

37.0.10.22:1187

Mutex

baa1bd16-ba50-4743-8b51-41c36ee5d9d4

Attributes

activate_away_mode
true
backup_connection_host
37.0.10.22
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2021-07-10T08:16:56.984441236Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
1187
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
baa1bd16-ba50-4743-8b51-41c36ee5d9d4
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
kamuchehddhgfgf.ddns.net
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\NAS Monitor = "C:\\Program Files (x86)\\NAS Monitor\\nasmon.exe"	f674a21da9dd26cc1f1cface03062cdd_JaffaCakes118.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	f674a21da9dd26cc1f1cface03062cdd_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1952 set thread context of 2424	1952	f674a21da9dd26cc1f1cface03062cdd_JaffaCakes118.exe	90

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\NAS Monitor\nasmon.exe	f674a21da9dd26cc1f1cface03062cdd_JaffaCakes118.exe
File created	C:\Program Files (x86)\NAS Monitor\nasmon.exe	f674a21da9dd26cc1f1cface03062cdd_JaffaCakes118.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	f674a21da9dd26cc1f1cface03062cdd_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f674a21da9dd26cc1f1cface03062cdd_JaffaCakes118.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
1952	f674a21da9dd26cc1f1cface03062cdd_JaffaCakes118.exe
1952	f674a21da9dd26cc1f1cface03062cdd_JaffaCakes118.exe
2424	f674a21da9dd26cc1f1cface03062cdd_JaffaCakes118.exe
2424	f674a21da9dd26cc1f1cface03062cdd_JaffaCakes118.exe
2424	f674a21da9dd26cc1f1cface03062cdd_JaffaCakes118.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2424	f674a21da9dd26cc1f1cface03062cdd_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1952	f674a21da9dd26cc1f1cface03062cdd_JaffaCakes118.exe
Token: SeDebugPrivilege	2424	f674a21da9dd26cc1f1cface03062cdd_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 1952 wrote to memory of 1292	1952	f674a21da9dd26cc1f1cface03062cdd_JaffaCakes118.exe	89
PID 1952 wrote to memory of 1292	1952	f674a21da9dd26cc1f1cface03062cdd_JaffaCakes118.exe	89
PID 1952 wrote to memory of 1292	1952	f674a21da9dd26cc1f1cface03062cdd_JaffaCakes118.exe	89
PID 1952 wrote to memory of 2424	1952	f674a21da9dd26cc1f1cface03062cdd_JaffaCakes118.exe	90
PID 1952 wrote to memory of 2424	1952	f674a21da9dd26cc1f1cface03062cdd_JaffaCakes118.exe	90
PID 1952 wrote to memory of 2424	1952	f674a21da9dd26cc1f1cface03062cdd_JaffaCakes118.exe	90
PID 1952 wrote to memory of 2424	1952	f674a21da9dd26cc1f1cface03062cdd_JaffaCakes118.exe	90
PID 1952 wrote to memory of 2424	1952	f674a21da9dd26cc1f1cface03062cdd_JaffaCakes118.exe	90
PID 1952 wrote to memory of 2424	1952	f674a21da9dd26cc1f1cface03062cdd_JaffaCakes118.exe	90
PID 1952 wrote to memory of 2424	1952	f674a21da9dd26cc1f1cface03062cdd_JaffaCakes118.exe	90
PID 1952 wrote to memory of 2424	1952	f674a21da9dd26cc1f1cface03062cdd_JaffaCakes118.exe	90

C:\Users\Admin\AppData\Local\Temp\f674a21da9dd26cc1f1cface03062cdd_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f674a21da9dd26cc1f1cface03062cdd_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1952
- C:\Users\Admin\AppData\Local\Temp\f674a21da9dd26cc1f1cface03062cdd_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\f674a21da9dd26cc1f1cface03062cdd_JaffaCakes118.exe"
  2⤵
  PID:1292
- C:\Users\Admin\AppData\Local\Temp\f674a21da9dd26cc1f1cface03062cdd_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\f674a21da9dd26cc1f1cface03062cdd_JaffaCakes118.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
  PID:2424

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 Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\f674a21da9dd26cc1f1cface03062cdd_JaffaCakes118.exe.log

Filesize
1KB

MD5
dc4f25880372b34bd321c7de4abb6616

SHA1
6e2f4c4f4ecaf53e0efcbe125572d3a78540e6fa

SHA256
e7ab3c07cfef749272019922d17900c020ce4281750ce9698cddacf85645d1fd

SHA512
f990c9ddf0749b55d861729a7adeb27338d783eaf9f8cf47e68f168bdf022b9ee52ee389219e6d58f7404cdf597cd76a1e5bbc4471ffbab67f6604f95854c9a5

Download Submit
memory/1952-10-0x00000000749A0000-0x0000000075150000-memory.dmp

Filesize
7.7MB

Download
memory/1952-16-0x00000000749A0000-0x0000000075150000-memory.dmp

Filesize
7.7MB

Download
memory/1952-3-0x0000000005840000-0x00000000058D2000-memory.dmp

Filesize
584KB

Download
memory/1952-4-0x00000000058E0000-0x0000000005936000-memory.dmp

Filesize
344KB

Download
memory/1952-5-0x00000000749A0000-0x0000000075150000-memory.dmp

Filesize
7.7MB

Download
memory/1952-6-0x0000000005830000-0x000000000583A000-memory.dmp

Filesize
40KB

Download
memory/1952-7-0x0000000006300000-0x000000000639C000-memory.dmp

Filesize
624KB

Download
memory/1952-8-0x0000000005B20000-0x0000000005B32000-memory.dmp

Filesize
72KB

Download
memory/1952-9-0x00000000749AE000-0x00000000749AF000-memory.dmp

Filesize
4KB

Download
memory/1952-0-0x00000000749AE000-0x00000000749AF000-memory.dmp

Filesize
4KB

Download
memory/1952-2-0x0000000005D50000-0x00000000062F4000-memory.dmp

Filesize
5.6MB

Download
memory/1952-1-0x0000000000DC0000-0x0000000000E5E000-memory.dmp

Filesize
632KB

Download
memory/1952-11-0x00000000071C0000-0x000000000721E000-memory.dmp

Filesize
376KB

Download
memory/2424-12-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2424-15-0x00000000749A0000-0x0000000075150000-memory.dmp

Filesize
7.7MB

Download
memory/2424-17-0x00000000749A0000-0x0000000075150000-memory.dmp

Filesize
7.7MB

Download
memory/2424-20-0x0000000005330000-0x000000000533A000-memory.dmp

Filesize
40KB

Download
memory/2424-21-0x0000000005340000-0x000000000535E000-memory.dmp

Filesize
120KB

Download
memory/2424-22-0x0000000005590000-0x000000000559A000-memory.dmp

Filesize
40KB

Download
memory/2424-23-0x00000000749A0000-0x0000000075150000-memory.dmp

Filesize
7.7MB

Download
memory/2424-24-0x00000000749A0000-0x0000000075150000-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