nanocore | f7984a40a419c7505ed86760237e50455ad8354312b8f2b5fbc6aa99e614b8d6

General

Target

f5a9d092edbaa842c01104d2d81bb45b_JaffaCakes118.exe
Size

713KB
MD5

f5a9d092edbaa842c01104d2d81bb45b
SHA1

1bf71ac073bd5b3b62d5b7e7538fc1e01cf28f50
SHA256

f7984a40a419c7505ed86760237e50455ad8354312b8f2b5fbc6aa99e614b8d6
SHA512

ae068d669cc42da09dabd14f7e7d450a976d7d559b18f45b142fd5923da8e03dbe153102fd27d9fdc283dc018f28cc65af13aa45152f21cd805215f6e65231bf
SSDEEP

12288:k92Xat8GMB12ltOyJhQA32aXDdanxDhqmkXnjeDgWNPOfwnf:NX88GMB18OyJuAGokRhqmkX89WfO

Score

10^/10

nanocore discovery evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

coc88.duckdns.org:8005

193.56.29.150:8005

Mutex

83352d75-1e88-4978-9dd5-254659b170b8

Attributes

activate_away_mode
false
backup_connection_host
193.56.29.150
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2021-05-15T16:24:32.018576736Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
8005
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
83352d75-1e88-4978-9dd5-254659b170b8
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
coc88.duckdns.org
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-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation	f5a9d092edbaa842c01104d2d81bb45b_JaffaCakes118.exe

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\DHCP Service = "C:\\Program Files (x86)\\DHCP Service\\dhcpsvc.exe"	f5a9d092edbaa842c01104d2d81bb45b_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	f5a9d092edbaa842c01104d2d81bb45b_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2732 set thread context of 4228	2732	f5a9d092edbaa842c01104d2d81bb45b_JaffaCakes118.exe	101

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\DHCP Service\dhcpsvc.exe	f5a9d092edbaa842c01104d2d81bb45b_JaffaCakes118.exe
File created	C:\Program Files (x86)\DHCP Service\dhcpsvc.exe	f5a9d092edbaa842c01104d2d81bb45b_JaffaCakes118.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 3 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	f5a9d092edbaa842c01104d2d81bb45b_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f5a9d092edbaa842c01104d2d81bb45b_JaffaCakes118.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

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

persistence execution

Scheduled Task

T1053.005

pid	Process
920	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2732	f5a9d092edbaa842c01104d2d81bb45b_JaffaCakes118.exe
4228	f5a9d092edbaa842c01104d2d81bb45b_JaffaCakes118.exe
4228	f5a9d092edbaa842c01104d2d81bb45b_JaffaCakes118.exe
4228	f5a9d092edbaa842c01104d2d81bb45b_JaffaCakes118.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4228	f5a9d092edbaa842c01104d2d81bb45b_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2732	f5a9d092edbaa842c01104d2d81bb45b_JaffaCakes118.exe
Token: SeDebugPrivilege	4228	f5a9d092edbaa842c01104d2d81bb45b_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2732 wrote to memory of 920	2732	f5a9d092edbaa842c01104d2d81bb45b_JaffaCakes118.exe	99
PID 2732 wrote to memory of 920	2732	f5a9d092edbaa842c01104d2d81bb45b_JaffaCakes118.exe	99
PID 2732 wrote to memory of 920	2732	f5a9d092edbaa842c01104d2d81bb45b_JaffaCakes118.exe	99
PID 2732 wrote to memory of 4228	2732	f5a9d092edbaa842c01104d2d81bb45b_JaffaCakes118.exe	101
PID 2732 wrote to memory of 4228	2732	f5a9d092edbaa842c01104d2d81bb45b_JaffaCakes118.exe	101
PID 2732 wrote to memory of 4228	2732	f5a9d092edbaa842c01104d2d81bb45b_JaffaCakes118.exe	101
PID 2732 wrote to memory of 4228	2732	f5a9d092edbaa842c01104d2d81bb45b_JaffaCakes118.exe	101
PID 2732 wrote to memory of 4228	2732	f5a9d092edbaa842c01104d2d81bb45b_JaffaCakes118.exe	101
PID 2732 wrote to memory of 4228	2732	f5a9d092edbaa842c01104d2d81bb45b_JaffaCakes118.exe	101
PID 2732 wrote to memory of 4228	2732	f5a9d092edbaa842c01104d2d81bb45b_JaffaCakes118.exe	101
PID 2732 wrote to memory of 4228	2732	f5a9d092edbaa842c01104d2d81bb45b_JaffaCakes118.exe	101

C:\Users\Admin\AppData\Local\Temp\f5a9d092edbaa842c01104d2d81bb45b_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f5a9d092edbaa842c01104d2d81bb45b_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2732
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\RvNKQSmLdF" /XML "C:\Users\Admin\AppData\Local\Temp\tmp1AE6.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:920
- C:\Users\Admin\AppData\Local\Temp\f5a9d092edbaa842c01104d2d81bb45b_JaffaCakes118.exe
  "{path}"
  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:4228

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp1AE6.tmp

Filesize
1KB

MD5
3fae8fb7293023ff7866caa29d8476ab

SHA1
7c6acbfd3511e338774014600345234998b07ac6

SHA256
a25e33ac64fc5a25189234df5d53da3c701c4c51cdacbd2d96e0ec2a249373f5

SHA512
8cbed41db072d4adca033538f8ee78e69f23bf12b69d7a25a615d0d648f7ce4ef2cc451fde0cd6766a5607e928882400156dbb737abf7975eb4928d557adcb32

Download Submit
memory/2732-3-0x00000000754F0000-0x0000000075AA1000-memory.dmp

Filesize
5.7MB

Download
memory/2732-2-0x00000000754F0000-0x0000000075AA1000-memory.dmp

Filesize
5.7MB

Download
memory/2732-0-0x00000000754F2000-0x00000000754F3000-memory.dmp

Filesize
4KB

Download
memory/2732-4-0x00000000754F2000-0x00000000754F3000-memory.dmp

Filesize
4KB

Download
memory/2732-5-0x00000000754F0000-0x0000000075AA1000-memory.dmp

Filesize
5.7MB

Download
memory/2732-1-0x00000000754F0000-0x0000000075AA1000-memory.dmp

Filesize
5.7MB

Download
memory/2732-11-0x00000000754F0000-0x0000000075AA1000-memory.dmp

Filesize
5.7MB

Download
memory/4228-12-0x00000000754F0000-0x0000000075AA1000-memory.dmp

Filesize
5.7MB

Download
memory/4228-14-0x00000000754F0000-0x0000000075AA1000-memory.dmp

Filesize
5.7MB

Download
memory/4228-9-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/4228-13-0x00000000754F0000-0x0000000075AA1000-memory.dmp

Filesize
5.7MB

Download
memory/4228-17-0x00000000754F0000-0x0000000075AA1000-memory.dmp

Filesize
5.7MB

Download
memory/4228-18-0x00000000754F0000-0x0000000075AA1000-memory.dmp

Filesize
5.7MB

Download
memory/4228-19-0x00000000754F0000-0x0000000075AA1000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads