nanocore | 412c928c7456959175b85a59095189010653c3870385d917878e3cab8ad8f4b6

General

Target

943b3c4bb05f14a97baf7e2d42c699e6_JaffaCakes118.exe
Size

584KB
MD5

943b3c4bb05f14a97baf7e2d42c699e6
SHA1

809523d91479ce1d7797e86499987b5a3546ee33
SHA256

412c928c7456959175b85a59095189010653c3870385d917878e3cab8ad8f4b6
SHA512

dd3dca0524d1f83f85a8ebcfce950e12f2a4b0aab5adc3361027fb959ca91878562c38a09d1ecb6d35fad961cc59bfa2fad1edc731d8ba3d0f7b7cdbf13731a8
SSDEEP

12288:UYf3YQmiUZvvrSEM9o7oDhnGUTgVRKGpPA2ooq2:Z3+iGvDSDrwZFpPAz

Score

10^/10

nanocore discovery evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

95.141.43.202:1860

127.0.0.1:1860

Mutex

47fe2d4d-2c23-4594-9173-9c075887e2b5

Attributes

activate_away_mode
true
backup_connection_host
127.0.0.1
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2018-08-26T00:46:44.118475836Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
1860
default_group
NOVEMBER
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
47fe2d4d-2c23-4594-9173-9c075887e2b5
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
95.141.43.202
primary_dns_server
8.8.8.8
request_elevation
true
restart_delay
5000
run_delay
0
run_on_startup
true
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

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

Processes:

943b3c4bb05f14a97baf7e2d42c699e6_JaffaCakes118.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	943b3c4bb05f14a97baf7e2d42c699e6_JaffaCakes118.exe

Executes dropped EXE 2 IoCs

Processes:

StanMatt.exeStanMatt.exe

pid	Process
4444	StanMatt.exe
3660	StanMatt.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

StanMatt.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\StanMatt = "C:\\Users\\Admin\\AppData\\Local\\StanMatt.exe -boot"	StanMatt.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

StanMatt.exe

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	StanMatt.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

StanMatt.exe

description	pid	Process	procid_target
PID 4444 set thread context of 3660	4444	StanMatt.exe	96

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 5 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

Processes:

StanMatt.exe943b3c4bb05f14a97baf7e2d42c699e6_JaffaCakes118.execmd.execmd.exeStanMatt.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	StanMatt.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	943b3c4bb05f14a97baf7e2d42c699e6_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	StanMatt.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

StanMatt.exe

pid	Process
3660	StanMatt.exe
3660	StanMatt.exe
3660	StanMatt.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

StanMatt.exe

pid	Process
3660	StanMatt.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

943b3c4bb05f14a97baf7e2d42c699e6_JaffaCakes118.exeStanMatt.exeStanMatt.exe

description	pid	Process
Token: SeDebugPrivilege	2588	943b3c4bb05f14a97baf7e2d42c699e6_JaffaCakes118.exe
Token: SeDebugPrivilege	4444	StanMatt.exe
Token: SeDebugPrivilege	3660	StanMatt.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

943b3c4bb05f14a97baf7e2d42c699e6_JaffaCakes118.execmd.exeStanMatt.exe

description	pid	Process	procid_target
PID 2588 wrote to memory of 880	2588	943b3c4bb05f14a97baf7e2d42c699e6_JaffaCakes118.exe	89
PID 2588 wrote to memory of 880	2588	943b3c4bb05f14a97baf7e2d42c699e6_JaffaCakes118.exe	89
PID 2588 wrote to memory of 880	2588	943b3c4bb05f14a97baf7e2d42c699e6_JaffaCakes118.exe	89
PID 2588 wrote to memory of 3676	2588	943b3c4bb05f14a97baf7e2d42c699e6_JaffaCakes118.exe	91
PID 2588 wrote to memory of 3676	2588	943b3c4bb05f14a97baf7e2d42c699e6_JaffaCakes118.exe	91
PID 2588 wrote to memory of 3676	2588	943b3c4bb05f14a97baf7e2d42c699e6_JaffaCakes118.exe	91
PID 3676 wrote to memory of 4444	3676	cmd.exe	93
PID 3676 wrote to memory of 4444	3676	cmd.exe	93
PID 3676 wrote to memory of 4444	3676	cmd.exe	93
PID 4444 wrote to memory of 3660	4444	StanMatt.exe	96
PID 4444 wrote to memory of 3660	4444	StanMatt.exe	96
PID 4444 wrote to memory of 3660	4444	StanMatt.exe	96
PID 4444 wrote to memory of 3660	4444	StanMatt.exe	96
PID 4444 wrote to memory of 3660	4444	StanMatt.exe	96
PID 4444 wrote to memory of 3660	4444	StanMatt.exe	96
PID 4444 wrote to memory of 3660	4444	StanMatt.exe	96
PID 4444 wrote to memory of 3660	4444	StanMatt.exe	96

C:\Users\Admin\AppData\Local\Temp\943b3c4bb05f14a97baf7e2d42c699e6_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\943b3c4bb05f14a97baf7e2d42c699e6_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2588
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c copy "C:\Users\Admin\AppData\Local\Temp\943b3c4bb05f14a97baf7e2d42c699e6_JaffaCakes118.exe" "C:\Users\Admin\AppData\Local\StanMatt.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:880
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c, "C:\Users\Admin\AppData\Local\StanMatt.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3676
- - C:\Users\Admin\AppData\Local\StanMatt.exe
    "C:\Users\Admin\AppData\Local\StanMatt.exe"
    3⤵
    - Executes dropped EXE
    - Adds Run key to start application
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:4444
  - - C:\Users\Admin\AppData\Local\StanMatt.exe
      "C:\Users\Admin\AppData\Local\StanMatt.exe"
      4⤵
      Executes dropped EXE
      Checks whether UAC is enabled
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious behavior: GetForegroundWindowSpam
      Suspicious use of AdjustPrivilegeToken
      PID:3660

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

Query Registry

1

T1012

System Information Discovery

3

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\StanMatt.exe

Filesize
584KB

MD5
943b3c4bb05f14a97baf7e2d42c699e6

SHA1
809523d91479ce1d7797e86499987b5a3546ee33

SHA256
412c928c7456959175b85a59095189010653c3870385d917878e3cab8ad8f4b6

SHA512
dd3dca0524d1f83f85a8ebcfce950e12f2a4b0aab5adc3361027fb959ca91878562c38a09d1ecb6d35fad961cc59bfa2fad1edc731d8ba3d0f7b7cdbf13731a8

Download Submit
memory/2588-5-0x00000000751A0000-0x0000000075950000-memory.dmp

Filesize
7.7MB

Download
memory/2588-1-0x0000000000790000-0x0000000000828000-memory.dmp

Filesize
608KB

Download
memory/2588-12-0x00000000751A0000-0x0000000075950000-memory.dmp

Filesize
7.7MB

Download
memory/2588-4-0x0000000005260000-0x0000000005280000-memory.dmp

Filesize
128KB

Download
memory/2588-0-0x00000000751AE000-0x00000000751AF000-memory.dmp

Filesize
4KB

Download
memory/2588-6-0x0000000005310000-0x000000000531A000-memory.dmp

Filesize
40KB

Download
memory/2588-7-0x00000000751AE000-0x00000000751AF000-memory.dmp

Filesize
4KB

Download
memory/2588-8-0x00000000751A0000-0x0000000075950000-memory.dmp

Filesize
7.7MB

Download
memory/2588-3-0x0000000005870000-0x0000000005E14000-memory.dmp

Filesize
5.6MB

Download
memory/2588-2-0x00000000051C0000-0x0000000005252000-memory.dmp

Filesize
584KB

Download
memory/3660-27-0x00000000054F0000-0x00000000054FA000-memory.dmp

Filesize
40KB

Download
memory/3660-20-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3660-25-0x0000000005190000-0x000000000519A000-memory.dmp

Filesize
40KB

Download
memory/3660-26-0x0000000005240000-0x000000000525E000-memory.dmp

Filesize
120KB

Download
memory/4444-16-0x00000000751A0000-0x0000000075950000-memory.dmp

Filesize
7.7MB

Download
memory/4444-18-0x00000000751A0000-0x0000000075950000-memory.dmp

Filesize
7.7MB

Download
memory/4444-19-0x0000000006C80000-0x0000000006D1C000-memory.dmp

Filesize
624KB

Download
memory/4444-23-0x00000000751A0000-0x0000000075950000-memory.dmp

Filesize
7.7MB

Download
memory/4444-17-0x00000000751A0000-0x0000000075950000-memory.dmp

Filesize
7.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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