nanocore | d5578cc3db622f678f2c471f007786e5686d34b5b17db9c5ce207979d0d1bd4d

General

Target

JaffaCakes118_cf34137a554698c7d6f0c48a09026acd.exe
Size

2.0MB
MD5

cf34137a554698c7d6f0c48a09026acd
SHA1

9f9ef51f68b9f5c7037d4b8f1b2a24c4c4c04f6d
SHA256

d5578cc3db622f678f2c471f007786e5686d34b5b17db9c5ce207979d0d1bd4d
SHA512

c23e6c98eb6b61e440799313190676f52007ff8011d52ec462559cc642deada8b438f940ee9c3a6afe26d2c3ec17ac09d5fc1589e60f738d83b8f8b4fa3902e4
SSDEEP

49152:z1MtJnuVGTK39Oo/c1B4qpS96QaXVeqDX1eV:ZMt9uVQK39Ook4mOhO0

Score

10^/10

nanocore discovery evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

googdns.ml:50899

140.82.57.249:50899

Mutex

a4df302c-640f-42b9-9ab0-c0331ecfe494

Attributes

activate_away_mode
true
backup_connection_host
140.82.57.249
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2018-07-25T23:30:36.974699836Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
false
clear_zone_identifier
false
connect_delay
4000
connection_port
50899
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
a4df302c-640f-42b9-9ab0-c0331ecfe494
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
googdns.ml
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

Executes dropped EXE 1 IoCs

pid	Process
2844	svchost.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\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\DHCP Manager = "C:\\Program Files (x86)\\DHCP Manager\\dhcpmgr.exe"	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Winlogon = "c:\\Windows\\svchost.exe"	JaffaCakes118_cf34137a554698c7d6f0c48a09026acd.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	svchost.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\DHCP Manager\dhcpmgr.exe	svchost.exe
File created	C:\Program Files (x86)\DHCP Manager\dhcpmgr.exe	svchost.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	\??\c:\Windows\svchost.exe	JaffaCakes118_cf34137a554698c7d6f0c48a09026acd.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 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	JaffaCakes118_cf34137a554698c7d6f0c48a09026acd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3012	JaffaCakes118_cf34137a554698c7d6f0c48a09026acd.exe
2844	svchost.exe
2844	svchost.exe
2844	svchost.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2844	svchost.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2844	svchost.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3012 wrote to memory of 2844	3012	JaffaCakes118_cf34137a554698c7d6f0c48a09026acd.exe	31
PID 3012 wrote to memory of 2844	3012	JaffaCakes118_cf34137a554698c7d6f0c48a09026acd.exe	31
PID 3012 wrote to memory of 2844	3012	JaffaCakes118_cf34137a554698c7d6f0c48a09026acd.exe	31
PID 3012 wrote to memory of 2844	3012	JaffaCakes118_cf34137a554698c7d6f0c48a09026acd.exe	31

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cf34137a554698c7d6f0c48a09026acd.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cf34137a554698c7d6f0c48a09026acd.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3012
- C:\Windows\svchost.exe
  "C:\Windows\svchost.exe"
  2⤵
  - 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
  PID:2844

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

2

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:\Windows\svchost.exe

Filesize
202KB

MD5
44a0d9c3fca67886ccc0247ab6debe0a

SHA1
0c17d3801ee53483934568ddd70581b4ce068f32

SHA256
83d33ec256ca80fab88fcbef8403d905e3618146805d7e0c3e3bcd3a1e739e8e

SHA512
024374eba4c5aaf85234fd746974b52b834883c5091db7538c832b1d699a1158152815827f9993c46c2b6ba9a3fc536569a15da35f82cf993d788c201bc43bee

Download Submit
memory/2844-28-0x0000000073F20000-0x00000000744CB000-memory.dmp

Filesize
5.7MB

Download
memory/2844-27-0x0000000073F20000-0x00000000744CB000-memory.dmp

Filesize
5.7MB

Download
memory/2844-24-0x0000000073F20000-0x00000000744CB000-memory.dmp

Filesize
5.7MB

Download
memory/2844-23-0x0000000073F20000-0x00000000744CB000-memory.dmp

Filesize
5.7MB

Download
memory/2844-22-0x0000000073F21000-0x0000000073F22000-memory.dmp

Filesize
4KB

Download
memory/3012-7-0x0000000077380000-0x0000000077381000-memory.dmp

Filesize
4KB

Download
memory/3012-12-0x00000000009F0000-0x0000000000E16000-memory.dmp

Filesize
4.1MB

Download
memory/3012-21-0x00000000009F0000-0x0000000000E16000-memory.dmp

Filesize
4.1MB

Download
memory/3012-11-0x0000000077540000-0x0000000077541000-memory.dmp

Filesize
4KB

Download
memory/3012-9-0x00000000009F0000-0x0000000000E16000-memory.dmp

Filesize
4.1MB

Download
memory/3012-0-0x00000000009F0000-0x0000000000E16000-memory.dmp

Filesize
4.1MB

Download
memory/3012-3-0x0000000077540000-0x0000000077541000-memory.dmp

Filesize
4KB

Download
memory/3012-1-0x0000000077540000-0x0000000077541000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads