nanocore | 6a7b877bba0381cfffcba61432c25bdd0d06bc5c3f3f7e341cbda2400f3450fd

Analysis

max time kernel
148s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
02/06/2024, 05:49

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General

Target
8d1432233fbf50a4bed2cde7d02a15fb_JaffaCakes118.exe
Size 510KB
Sample240602-gjfa8add83
SHA256 6a7b877bba0381cfffcba61432c25bdd0d06bc5c3f3f7e341cbda2400f3450fd
MD5 8d1432233fbf50a4bed2cde7d02a15fb
SHA1 7bdbca043befbdbc1bf8a4f4d18605d6ef05a02d
SHA512 84a14778d2e6c1d5f5449312cad241707c3a9f88671697980b3444bea0e90ef5a53b994e33dc5210bad4da9d1b33587bcb4a83ef30a4654da46c7b0f2254ebcf
SSDEEP 12288:12qUdOQ97ZMO8EBqHCeXnBK9D0UEMPhnBCnZ3CXvspD:12qIOQ3qPXna0sE3CEpD
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

nanocore evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

184.75.209.163:1718

Mutex

a33526f3-84a9-41c6-a470-86610803cdd6

Attributes

activate_away_mode
true
backup_connection_host
184.75.209.163
backup_dns_server
buffer_size
65535
build_time
2018-03-25T06:03:50.753224836Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
true
clear_zone_identifier
true
connect_delay
4000
connection_port
1718
default_group
CHRONE
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
a33526f3-84a9-41c6-a470-86610803cdd6
mutex_timeout
5000
prevent_system_sleep
true
primary_connection_host
184.75.209.163
primary_dns_server
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

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\Control Panel\International\Geo\Nation	8d1432233fbf50a4bed2cde7d02a15fb_JaffaCakes118.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\app.exe	cmd.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\app.exe	cmd.exe

Executes dropped EXE 2 IoCs

pid	Process
3280	app.exe
4824	app.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Application = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Start Menu\\Programs\\Startup\\app.exe -boot"	app.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\DOS Host = "C:\\Program Files (x86)\\DOS Host\\doshost.exe"	app.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	app.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3280 set thread context of 4824	3280	app.exe	99

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\DOS Host\doshost.exe	app.exe
File created	C:\Program Files (x86)\DOS Host\doshost.exe	app.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
4824	app.exe
4824	app.exe
4824	app.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4824	app.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1400	8d1432233fbf50a4bed2cde7d02a15fb_JaffaCakes118.exe
Token: SeDebugPrivilege	3280	app.exe
Token: SeDebugPrivilege	4824	app.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 1400 wrote to memory of 1880	1400	8d1432233fbf50a4bed2cde7d02a15fb_JaffaCakes118.exe	92
PID 1400 wrote to memory of 1880	1400	8d1432233fbf50a4bed2cde7d02a15fb_JaffaCakes118.exe	92
PID 1400 wrote to memory of 1880	1400	8d1432233fbf50a4bed2cde7d02a15fb_JaffaCakes118.exe	92
PID 1400 wrote to memory of 5116	1400	8d1432233fbf50a4bed2cde7d02a15fb_JaffaCakes118.exe	95
PID 1400 wrote to memory of 5116	1400	8d1432233fbf50a4bed2cde7d02a15fb_JaffaCakes118.exe	95
PID 1400 wrote to memory of 5116	1400	8d1432233fbf50a4bed2cde7d02a15fb_JaffaCakes118.exe	95
PID 4508 wrote to memory of 3280	4508	explorer.exe	97
PID 4508 wrote to memory of 3280	4508	explorer.exe	97
PID 4508 wrote to memory of 3280	4508	explorer.exe	97
PID 3280 wrote to memory of 4824	3280	app.exe	99
PID 3280 wrote to memory of 4824	3280	app.exe	99
PID 3280 wrote to memory of 4824	3280	app.exe	99
PID 3280 wrote to memory of 4824	3280	app.exe	99
PID 3280 wrote to memory of 4824	3280	app.exe	99
PID 3280 wrote to memory of 4824	3280	app.exe	99
PID 3280 wrote to memory of 4824	3280	app.exe	99
PID 3280 wrote to memory of 4824	3280	app.exe	99

C:\Users\Admin\AppData\Local\Temp\8d1432233fbf50a4bed2cde7d02a15fb_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\8d1432233fbf50a4bed2cde7d02a15fb_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1400
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c copy "C:\Users\Admin\AppData\Local\Temp\8d1432233fbf50a4bed2cde7d02a15fb_JaffaCakes118.exe" "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\app.exe"
  2⤵
  - Drops startup file
  PID:1880
- C:\Windows\SysWOW64\explorer.exe
  "C:\Windows\System32\explorer.exe" /c, "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\app.exe"
  2⤵
  PID:5116

C:\Windows\explorer.exe
C:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding
1⤵
- Suspicious use of WriteProcessMemory
PID:4508
- C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\app.exe
  "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\app.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of SetThreadContext
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3280
- - C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\app.exe
    "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\app.exe"
    3⤵
    - Executes dropped EXE
    - 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
    PID:4824

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

app.exe

Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\app.exe
Size 510KB
SHA256 6a7b877bba0381cfffcba61432c25bdd0d06bc5c3f3f7e341cbda2400f3450fd
MD5 8d1432233fbf50a4bed2cde7d02a15fb
SHA1 7bdbca043befbdbc1bf8a4f4d18605d6ef05a02d
SHA512 84a14778d2e6c1d5f5449312cad241707c3a9f88671697980b3444bea0e90ef5a53b994e33dc5210bad4da9d1b33587bcb4a83ef30a4654da46c7b0f2254ebcf
SSDEEP 12288:12qUdOQ97ZMO8EBqHCeXnBK9D0UEMPhnBCnZ3CXvspD:12qIOQ3qPXna0sE3CEpD
MD5 SHA1 SHA512 SSDEEP

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memory/1400-8-0x000000007453E000-0x000000007453F000-memory.dmp

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memory/1400-1-0x0000000000A20000-0x0000000000AA6000-memory.dmp

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memory/1400-3-0x0000000005470000-0x0000000005502000-memory.dmp

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memory/1400-4-0x0000000005450000-0x000000000545A000-memory.dmp

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memory/1400-5-0x0000000074530000-0x0000000074CE0000-memory.dmp

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memory/1400-7-0x0000000005670000-0x0000000005686000-memory.dmp

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memory/1400-2-0x0000000005A20000-0x0000000005FC4000-memory.dmp

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memory/1400-6-0x0000000006B40000-0x0000000006BDC000-memory.dmp

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memory/1400-9-0x0000000074530000-0x0000000074CE0000-memory.dmp

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memory/1400-0-0x000000007453E000-0x000000007453F000-memory.dmp

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memory/1400-16-0x0000000074530000-0x0000000074CE0000-memory.dmp

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memory/3280-15-0x00000000055C0000-0x00000000055D6000-memory.dmp

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memory/4824-17-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/4824-22-0x0000000005650000-0x000000000565A000-memory.dmp

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memory/4824-23-0x0000000005860000-0x000000000587E000-memory.dmp

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memory/4824-24-0x0000000005C10000-0x0000000005C1A000-memory.dmp

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