nanocore | 9b3a42a3d98ada308d0c87ba8c43566e3ca4862746b134366bbcbe13cebc5e64

General

Target

ef551ecec43d5abb40d481a7b6f23149_JaffaCakes118.exe
Size

426KB
MD5

ef551ecec43d5abb40d481a7b6f23149
SHA1

6e5581fdccb6139af704acc0d383237895ad1e64
SHA256

9b3a42a3d98ada308d0c87ba8c43566e3ca4862746b134366bbcbe13cebc5e64
SHA512

81efbe28fe0a05af8a16f639e4f7439957e8af9b2b2fe7a9790ba7cd005c3053517b1c760b4a61f23644ecd9375a708454f8b75bf54305908adbcb1bea36fb36
SSDEEP

6144:c4GfdLPZf81HNzd5ST2VY+EW7WUd/7aJp2zy3U/1FMSwKY+gWF3XYT7:RGfxxk1VHS4WUdMEACZXYH

Score

10^/10

nanocore discovery evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

starlucky.dynu.net:1122

Mutex

98c0e5fc-6e0a-44bd-bd0f-1b99b4d32659

Attributes

activate_away_mode
true
backup_connection_host
starlucky.dynu.net
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2018-12-10T12:50:09.746008936Z
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
1122
default_group
HACK
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
98c0e5fc-6e0a-44bd-bd0f-1b99b4d32659
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
starlucky.dynu.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
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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	ef551ecec43d5abb40d481a7b6f23149_JaffaCakes118.exe

Executes dropped EXE 2 IoCs

pid	Process
1916	mnm.exe
4072	mnm.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-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Application = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\mnm.exe -boot"	mnm.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\NTFS Manager = "C:\\Program Files (x86)\\NTFS Manager\\ntfsmgr.exe"	mnm.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	mnm.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1916 set thread context of 4072	1916	mnm.exe	96

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\NTFS Manager\ntfsmgr.exe	mnm.exe
File opened for modification	C:\Program Files (x86)\NTFS Manager\ntfsmgr.exe	mnm.exe

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 7 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	mnm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ef551ecec43d5abb40d481a7b6f23149_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	mnm.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

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

persistence execution

Scheduled Task

T1053.005

pid	Process
4624	schtasks.exe
4756	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
4072	mnm.exe
4072	mnm.exe
4072	mnm.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4072	mnm.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1864	ef551ecec43d5abb40d481a7b6f23149_JaffaCakes118.exe
Token: SeDebugPrivilege	1916	mnm.exe
Token: SeDebugPrivilege	4072	mnm.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1864 wrote to memory of 1428	1864	ef551ecec43d5abb40d481a7b6f23149_JaffaCakes118.exe	86
PID 1864 wrote to memory of 1428	1864	ef551ecec43d5abb40d481a7b6f23149_JaffaCakes118.exe	86
PID 1864 wrote to memory of 1428	1864	ef551ecec43d5abb40d481a7b6f23149_JaffaCakes118.exe	86
PID 1864 wrote to memory of 1912	1864	ef551ecec43d5abb40d481a7b6f23149_JaffaCakes118.exe	91
PID 1864 wrote to memory of 1912	1864	ef551ecec43d5abb40d481a7b6f23149_JaffaCakes118.exe	91
PID 1864 wrote to memory of 1912	1864	ef551ecec43d5abb40d481a7b6f23149_JaffaCakes118.exe	91
PID 1912 wrote to memory of 1916	1912	cmd.exe	93
PID 1912 wrote to memory of 1916	1912	cmd.exe	93
PID 1912 wrote to memory of 1916	1912	cmd.exe	93
PID 1916 wrote to memory of 4072	1916	mnm.exe	96
PID 1916 wrote to memory of 4072	1916	mnm.exe	96
PID 1916 wrote to memory of 4072	1916	mnm.exe	96
PID 1916 wrote to memory of 4072	1916	mnm.exe	96
PID 1916 wrote to memory of 4072	1916	mnm.exe	96
PID 1916 wrote to memory of 4072	1916	mnm.exe	96
PID 1916 wrote to memory of 4072	1916	mnm.exe	96
PID 1916 wrote to memory of 4072	1916	mnm.exe	96
PID 4072 wrote to memory of 4624	4072	mnm.exe	97
PID 4072 wrote to memory of 4624	4072	mnm.exe	97
PID 4072 wrote to memory of 4624	4072	mnm.exe	97
PID 4072 wrote to memory of 4756	4072	mnm.exe	99
PID 4072 wrote to memory of 4756	4072	mnm.exe	99
PID 4072 wrote to memory of 4756	4072	mnm.exe	99

C:\Users\Admin\AppData\Local\Temp\ef551ecec43d5abb40d481a7b6f23149_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\ef551ecec43d5abb40d481a7b6f23149_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1864
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c copy "C:\Users\Admin\AppData\Local\Temp\ef551ecec43d5abb40d481a7b6f23149_JaffaCakes118.exe" "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\mnm.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1428
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c, "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\mnm.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1912
- - C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\mnm.exe
    "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\mnm.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:1916
  - - C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\mnm.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\mnm.exe"
      4⤵
      Executes dropped EXE
      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
      Suspicious use of WriteProcessMemory
      PID:4072
    - - C:\Windows\SysWOW64\schtasks.exe
        
        "schtasks.exe" /create /f /tn "NTFS Manager" /xml "C:\Users\Admin\AppData\Local\Temp\tmp7E05.tmp"
        5⤵
        System Location Discovery: System Language Discovery
        Scheduled Task/Job: Scheduled Task
        
        PID:4624
    - - C:\Windows\SysWOW64\schtasks.exe
        
        "schtasks.exe" /create /f /tn "NTFS Manager Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp7E54.tmp"
        5⤵
        System Location Discovery: System Language Discovery
        Scheduled Task/Job: Scheduled Task
        
        PID:4756

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

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

Replay Monitor

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Downloads

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

Filesize
706B

MD5
526665834569d9a2c6152d783dc902db

SHA1
53b2bbdbe6bb034d280e710d8c95a003d9bdf0b9

SHA256
7956de4c6e49e2717c57427669ba8736462928d22550127ba00ded2f044f79c5

SHA512
25b6d14faeec1af9cbf8a5795135ddbc24383e23e3ab74cee3a3a18da4cda067c1f14f6395774d2256199520ff0fd10fc7a23f7357b3aafa1e89819195e7486e

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp7E05.tmp

Filesize
1KB

MD5
c9f85027c1e229143125177b3a238576

SHA1
fa0fdaa45e53322e6d81e27cd32f497699a406f1

SHA256
176686e40816c00d28451c538cdbeb5d78b95e5f89eeaacf24c0b67b814e6f73

SHA512
2204b2f77ef2fc45d82ad2f4d8f334c9d9516afd562a0280c559d972d003319980dee45ab1780f08818b0448c985668b825983de505debd8ab3abc7e345b67b0

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp7E54.tmp

Filesize
1KB

MD5
41808f05a9aa523d0ef506d4993f1d6c

SHA1
5a228145decf63ebbbd673c9b7c08a86236a22d4

SHA256
f76bd5da395a725b5998efab9a5d3160657cf2d44a8be83fa24af6ba29acf731

SHA512
7cf71f8fd8dccaa8cf2c724afca3178be8b7a6e0cc6e4b44990e96413bd0dac8248e2bcfa1bb82da05efb6c4b46649722c20ce14cf4a44f1720e18732bd9246e

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\mnm.exe

Filesize
426KB

MD5
ef551ecec43d5abb40d481a7b6f23149

SHA1
6e5581fdccb6139af704acc0d383237895ad1e64

SHA256
9b3a42a3d98ada308d0c87ba8c43566e3ca4862746b134366bbcbe13cebc5e64

SHA512
81efbe28fe0a05af8a16f639e4f7439957e8af9b2b2fe7a9790ba7cd005c3053517b1c760b4a61f23644ecd9375a708454f8b75bf54305908adbcb1bea36fb36

Download Submit
memory/1864-6-0x0000000005660000-0x00000000056F2000-memory.dmp

Filesize
584KB

Download
memory/1864-5-0x0000000005D40000-0x00000000062E4000-memory.dmp

Filesize
5.6MB

Download
memory/1864-4-0x0000000074F90000-0x0000000075740000-memory.dmp

Filesize
7.7MB

Download
memory/1864-7-0x0000000074F9E000-0x0000000074F9F000-memory.dmp

Filesize
4KB

Download
memory/1864-8-0x0000000074F90000-0x0000000075740000-memory.dmp

Filesize
7.7MB

Download
memory/1864-12-0x0000000074F90000-0x0000000075740000-memory.dmp

Filesize
7.7MB

Download
memory/1864-2-0x00000000054B0000-0x00000000054CC000-memory.dmp

Filesize
112KB

Download
memory/1864-3-0x00000000054D0000-0x00000000054E2000-memory.dmp

Filesize
72KB

Download
memory/1864-0-0x0000000074F9E000-0x0000000074F9F000-memory.dmp

Filesize
4KB

Download
memory/1864-1-0x0000000000B20000-0x0000000000B8E000-memory.dmp

Filesize
440KB

Download
memory/1916-17-0x0000000002C70000-0x0000000002C82000-memory.dmp

Filesize
72KB

Download
memory/1916-20-0x00000000060F0000-0x000000000618C000-memory.dmp

Filesize
624KB

Download
memory/1916-19-0x0000000074F90000-0x0000000075740000-memory.dmp

Filesize
7.7MB

Download
memory/1916-25-0x0000000074F90000-0x0000000075740000-memory.dmp

Filesize
7.7MB

Download
memory/1916-18-0x0000000074F90000-0x0000000075740000-memory.dmp

Filesize
7.7MB

Download
memory/1916-16-0x0000000074F90000-0x0000000075740000-memory.dmp

Filesize
7.7MB

Download
memory/4072-21-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4072-26-0x0000000004D70000-0x0000000004D7A000-memory.dmp

Filesize
40KB

Download
memory/4072-34-0x00000000050C0000-0x00000000050CA000-memory.dmp

Filesize
40KB

Download
memory/4072-35-0x0000000005ED0000-0x0000000005EEE000-memory.dmp

Filesize
120KB

Download
memory/4072-36-0x0000000006000000-0x000000000600A000-memory.dmp

Filesize
40KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads