nanocore | 3efbcb58b916487e6ac469d8c289ff1c1861446715480277fbb2e0af1444c8c3

General

Target

JaffaCakes118_2758e51b671a8831a9518f4ee6c8f0e2.exe
Size

540KB
MD5

2758e51b671a8831a9518f4ee6c8f0e2
SHA1

7fd0032aaff45b5e5b71af1c432899efc80d2162
SHA256

3efbcb58b916487e6ac469d8c289ff1c1861446715480277fbb2e0af1444c8c3
SHA512

c448bbe76d17a707a60b15557e0dcb87098be2f4622ab6d4023b62b5ed9b7c4048e020043c71839a08a07450cc769953b88b9fcb9ff04b5fc945cb1c94654666
SSDEEP

6144:LGxhLJCrIBNvFre9kfSBWI0N0QqIcQuvH1eI+jHUsdfhnNV6G2AZsd+jxlDur4Rl:axLLSbWIpQqIzuvw5BEAq+jxlKr4

Score

10^/10

nanocore discovery evasion keylogger spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

178.170.138.163:5626

Mutex

01f9d977-6605-495e-941a-753d3cd6dc0b

Attributes

activate_away_mode
true
backup_connection_host
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2021-02-27T13:54:38.807349736Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
true
clear_zone_identifier
true
connect_delay
4000
connection_port
5626
default_group
4Maticross.
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
01f9d977-6605-495e-941a-753d3cd6dc0b
mutex_timeout
5000
prevent_system_sleep
true
primary_connection_host
178.170.138.163
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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation	JaffaCakes118_2758e51b671a8831a9518f4ee6c8f0e2.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	JaffaCakes118_2758e51b671a8831a9518f4ee6c8f0e2.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3108 set thread context of 4716	3108	JaffaCakes118_2758e51b671a8831a9518f4ee6c8f0e2.exe	101

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	JaffaCakes118_2758e51b671a8831a9518f4ee6c8f0e2.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_2758e51b671a8831a9518f4ee6c8f0e2.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.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
4688	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
4716	JaffaCakes118_2758e51b671a8831a9518f4ee6c8f0e2.exe
4716	JaffaCakes118_2758e51b671a8831a9518f4ee6c8f0e2.exe
4716	JaffaCakes118_2758e51b671a8831a9518f4ee6c8f0e2.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4716	JaffaCakes118_2758e51b671a8831a9518f4ee6c8f0e2.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4716	JaffaCakes118_2758e51b671a8831a9518f4ee6c8f0e2.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 3108 wrote to memory of 4688	3108	JaffaCakes118_2758e51b671a8831a9518f4ee6c8f0e2.exe	99
PID 3108 wrote to memory of 4688	3108	JaffaCakes118_2758e51b671a8831a9518f4ee6c8f0e2.exe	99
PID 3108 wrote to memory of 4688	3108	JaffaCakes118_2758e51b671a8831a9518f4ee6c8f0e2.exe	99
PID 3108 wrote to memory of 4716	3108	JaffaCakes118_2758e51b671a8831a9518f4ee6c8f0e2.exe	101
PID 3108 wrote to memory of 4716	3108	JaffaCakes118_2758e51b671a8831a9518f4ee6c8f0e2.exe	101
PID 3108 wrote to memory of 4716	3108	JaffaCakes118_2758e51b671a8831a9518f4ee6c8f0e2.exe	101
PID 3108 wrote to memory of 4716	3108	JaffaCakes118_2758e51b671a8831a9518f4ee6c8f0e2.exe	101
PID 3108 wrote to memory of 4716	3108	JaffaCakes118_2758e51b671a8831a9518f4ee6c8f0e2.exe	101
PID 3108 wrote to memory of 4716	3108	JaffaCakes118_2758e51b671a8831a9518f4ee6c8f0e2.exe	101
PID 3108 wrote to memory of 4716	3108	JaffaCakes118_2758e51b671a8831a9518f4ee6c8f0e2.exe	101
PID 3108 wrote to memory of 4716	3108	JaffaCakes118_2758e51b671a8831a9518f4ee6c8f0e2.exe	101

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2758e51b671a8831a9518f4ee6c8f0e2.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2758e51b671a8831a9518f4ee6c8f0e2.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3108
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\fYFblKct" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3851.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:4688
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2758e51b671a8831a9518f4ee6c8f0e2.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2758e51b671a8831a9518f4ee6c8f0e2.exe"
  2⤵
  - Checks whether UAC is enabled
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  PID:4716

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\JaffaCakes118_2758e51b671a8831a9518f4ee6c8f0e2.exe.log

Filesize
1KB

MD5
8ec831f3e3a3f77e4a7b9cd32b48384c

SHA1
d83f09fd87c5bd86e045873c231c14836e76a05c

SHA256
7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

SHA512
26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

Download Submit
memory/3108-10-0x0000000008360000-0x00000000083BC000-memory.dmp

Filesize
368KB

Download
memory/3108-20-0x0000000074D70000-0x0000000075520000-memory.dmp

Filesize
7.7MB

Download
memory/3108-3-0x0000000005550000-0x00000000055E2000-memory.dmp

Filesize
584KB

Download
memory/3108-4-0x0000000074D70000-0x0000000075520000-memory.dmp

Filesize
7.7MB

Download
memory/3108-5-0x0000000005520000-0x000000000552A000-memory.dmp

Filesize
40KB

Download
memory/3108-6-0x0000000006460000-0x000000000646E000-memory.dmp

Filesize
56KB

Download
memory/3108-7-0x0000000074D7E000-0x0000000074D7F000-memory.dmp

Filesize
4KB

Download
memory/3108-9-0x0000000008210000-0x00000000082AC000-memory.dmp

Filesize
624KB

Download
memory/3108-0-0x0000000074D7E000-0x0000000074D7F000-memory.dmp

Filesize
4KB

Download
memory/3108-2-0x0000000005A60000-0x0000000006004000-memory.dmp

Filesize
5.6MB

Download
memory/3108-8-0x0000000074D70000-0x0000000075520000-memory.dmp

Filesize
7.7MB

Download
memory/3108-1-0x0000000000AD0000-0x0000000000B5E000-memory.dmp

Filesize
568KB

Download
memory/4716-25-0x00000000054A0000-0x00000000054AA000-memory.dmp

Filesize
40KB

Download
memory/4716-19-0x0000000074D70000-0x0000000075520000-memory.dmp

Filesize
7.7MB

Download
memory/4716-21-0x0000000074D70000-0x0000000075520000-memory.dmp

Filesize
7.7MB

Download
memory/4716-23-0x0000000005320000-0x000000000532A000-memory.dmp

Filesize
40KB

Download
memory/4716-24-0x0000000005480000-0x000000000549E000-memory.dmp

Filesize
120KB

Download
memory/4716-27-0x0000000074D70000-0x0000000075520000-memory.dmp

Filesize
7.7MB

Download
memory/4716-26-0x0000000074D70000-0x0000000075520000-memory.dmp

Filesize
7.7MB

Download
memory/4716-16-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads