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

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\ISS Host = "C:\\Program Files (x86)\\ISS Host\\isshost.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 1660 set thread context of 2500	1660	f5a9d092edbaa842c01104d2d81bb45b_JaffaCakes118.exe	31

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\ISS Host\isshost.exe	f5a9d092edbaa842c01104d2d81bb45b_JaffaCakes118.exe
File opened for modification	C:\Program Files (x86)\ISS Host\isshost.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
2672	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1660	f5a9d092edbaa842c01104d2d81bb45b_JaffaCakes118.exe
2500	f5a9d092edbaa842c01104d2d81bb45b_JaffaCakes118.exe
2500	f5a9d092edbaa842c01104d2d81bb45b_JaffaCakes118.exe
2500	f5a9d092edbaa842c01104d2d81bb45b_JaffaCakes118.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2500	f5a9d092edbaa842c01104d2d81bb45b_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1660	f5a9d092edbaa842c01104d2d81bb45b_JaffaCakes118.exe
Token: SeDebugPrivilege	2500	f5a9d092edbaa842c01104d2d81bb45b_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 1660 wrote to memory of 2672	1660	f5a9d092edbaa842c01104d2d81bb45b_JaffaCakes118.exe	29
PID 1660 wrote to memory of 2672	1660	f5a9d092edbaa842c01104d2d81bb45b_JaffaCakes118.exe	29
PID 1660 wrote to memory of 2672	1660	f5a9d092edbaa842c01104d2d81bb45b_JaffaCakes118.exe	29
PID 1660 wrote to memory of 2672	1660	f5a9d092edbaa842c01104d2d81bb45b_JaffaCakes118.exe	29
PID 1660 wrote to memory of 2500	1660	f5a9d092edbaa842c01104d2d81bb45b_JaffaCakes118.exe	31
PID 1660 wrote to memory of 2500	1660	f5a9d092edbaa842c01104d2d81bb45b_JaffaCakes118.exe	31
PID 1660 wrote to memory of 2500	1660	f5a9d092edbaa842c01104d2d81bb45b_JaffaCakes118.exe	31
PID 1660 wrote to memory of 2500	1660	f5a9d092edbaa842c01104d2d81bb45b_JaffaCakes118.exe	31
PID 1660 wrote to memory of 2500	1660	f5a9d092edbaa842c01104d2d81bb45b_JaffaCakes118.exe	31
PID 1660 wrote to memory of 2500	1660	f5a9d092edbaa842c01104d2d81bb45b_JaffaCakes118.exe	31
PID 1660 wrote to memory of 2500	1660	f5a9d092edbaa842c01104d2d81bb45b_JaffaCakes118.exe	31
PID 1660 wrote to memory of 2500	1660	f5a9d092edbaa842c01104d2d81bb45b_JaffaCakes118.exe	31
PID 1660 wrote to memory of 2500	1660	f5a9d092edbaa842c01104d2d81bb45b_JaffaCakes118.exe	31

C:\Users\Admin\AppData\Local\Temp\f5a9d092edbaa842c01104d2d81bb45b_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f5a9d092edbaa842c01104d2d81bb45b_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1660
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\RvNKQSmLdF" /XML "C:\Users\Admin\AppData\Local\Temp\tmp7790.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2672
- 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:2500

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

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:\Users\Admin\AppData\Local\Temp\tmp7790.tmp

Filesize
1KB

MD5
1a3f9aa273dc69e51bb2510593d3db16

SHA1
aa26d337513db2a58d3ee834ceec873e24cbf888

SHA256
916754a53fd65d3a0670ef2a38d08cfd2684ad9b5db7e4395d4309acf2af87f5

SHA512
21558f56e0e2944aeff94e4a1b278dc4a0b6f5b3b8a82de383b2b03ccf482a7b6d7d65745fbb8e4ad24eedbd22dab1aada6b522230e4fc3c4ff986aef0c78939

Download Submit
memory/1660-0-0x0000000074DE1000-0x0000000074DE2000-memory.dmp

Filesize
4KB

Download
memory/1660-1-0x0000000074DE0000-0x000000007538B000-memory.dmp

Filesize
5.7MB

Download
memory/1660-2-0x0000000074DE0000-0x000000007538B000-memory.dmp

Filesize
5.7MB

Download
memory/1660-3-0x0000000074DE0000-0x000000007538B000-memory.dmp

Filesize
5.7MB

Download
memory/1660-4-0x0000000074DE0000-0x000000007538B000-memory.dmp

Filesize
5.7MB

Download
memory/1660-22-0x0000000074DE0000-0x000000007538B000-memory.dmp

Filesize
5.7MB

Download
memory/2500-15-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/2500-21-0x0000000074DE0000-0x000000007538B000-memory.dmp

Filesize
5.7MB

Download
memory/2500-18-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/2500-19-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/2500-8-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/2500-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2500-12-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/2500-11-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/2500-10-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/2500-20-0x0000000074DE0000-0x000000007538B000-memory.dmp

Filesize
5.7MB

Download
memory/2500-25-0x0000000074DE0000-0x000000007538B000-memory.dmp

Filesize
5.7MB

Download
memory/2500-26-0x0000000074DE0000-0x000000007538B000-memory.dmp

Filesize
5.7MB

Download
memory/2500-27-0x0000000074DE0000-0x000000007538B000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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