nanocore | 9b916d451ce81a4fa56209262065797748bcbce9d8819288e46004c6d0f95c6b

General

Target

ab0f429587409856cbf8b7eeda784818_JaffaCakes118.exe
Size

569KB
MD5

ab0f429587409856cbf8b7eeda784818
SHA1

11361e5f830be948fe2f3115875baf8bd784009b
SHA256

9b916d451ce81a4fa56209262065797748bcbce9d8819288e46004c6d0f95c6b
SHA512

83ea74f260d64b143b44fbc067696aebe6e2cd670a4456b30b12282c0cb538428296fa53fd5ad37960d2edc146c95b4f383459f3ef666f4e672fd4dc243a801e
SSDEEP

12288:2NeZIXMuf2BBHkr4AgKB2E3/XjCPncDMQNvdL3XO2:68vLkrsE3/Xkc3vNnO

Score

10^/10

nanocore discovery evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

0.tcp.ngrok.io:15642

Mutex

d61fa598-6d05-4c22-9eba-11b25460477f

Attributes

activate_away_mode
true
backup_connection_host
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2021-05-15T14:08:35.896694436Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
15642
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
d61fa598-6d05-4c22-9eba-11b25460477f
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
0.tcp.ngrok.io
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\SCSI Host = "C:\\Program Files (x86)\\SCSI Host\\scsihost.exe"	RegAsm.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	RegAsm.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 23 IoCs

Web Service

T1102

flow	ioc
38	0.tcp.ngrok.io
6	0.tcp.ngrok.io
14	0.tcp.ngrok.io
24	0.tcp.ngrok.io
34	0.tcp.ngrok.io
8	0.tcp.ngrok.io
16	0.tcp.ngrok.io
36	0.tcp.ngrok.io
46	0.tcp.ngrok.io
28	0.tcp.ngrok.io
32	0.tcp.ngrok.io
40	0.tcp.ngrok.io
42	0.tcp.ngrok.io
18	0.tcp.ngrok.io
20	0.tcp.ngrok.io
22	0.tcp.ngrok.io
26	0.tcp.ngrok.io
2	0.tcp.ngrok.io
4	0.tcp.ngrok.io
10	0.tcp.ngrok.io
12	0.tcp.ngrok.io
30	0.tcp.ngrok.io
44	0.tcp.ngrok.io

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2296 set thread context of 2240	2296	ab0f429587409856cbf8b7eeda784818_JaffaCakes118.exe	31

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\SCSI Host\scsihost.exe	RegAsm.exe
File opened for modification	C:\Program Files (x86)\SCSI Host\scsihost.exe	RegAsm.exe

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	ab0f429587409856cbf8b7eeda784818_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2240	RegAsm.exe
2240	RegAsm.exe
2240	RegAsm.exe
2240	RegAsm.exe
2240	RegAsm.exe
2240	RegAsm.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2240	RegAsm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2240	RegAsm.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2296 wrote to memory of 2240	2296	ab0f429587409856cbf8b7eeda784818_JaffaCakes118.exe	31
PID 2296 wrote to memory of 2240	2296	ab0f429587409856cbf8b7eeda784818_JaffaCakes118.exe	31
PID 2296 wrote to memory of 2240	2296	ab0f429587409856cbf8b7eeda784818_JaffaCakes118.exe	31
PID 2296 wrote to memory of 2240	2296	ab0f429587409856cbf8b7eeda784818_JaffaCakes118.exe	31
PID 2296 wrote to memory of 2240	2296	ab0f429587409856cbf8b7eeda784818_JaffaCakes118.exe	31
PID 2296 wrote to memory of 2240	2296	ab0f429587409856cbf8b7eeda784818_JaffaCakes118.exe	31
PID 2296 wrote to memory of 2240	2296	ab0f429587409856cbf8b7eeda784818_JaffaCakes118.exe	31
PID 2296 wrote to memory of 2240	2296	ab0f429587409856cbf8b7eeda784818_JaffaCakes118.exe	31
PID 2296 wrote to memory of 2240	2296	ab0f429587409856cbf8b7eeda784818_JaffaCakes118.exe	31
PID 2296 wrote to memory of 2240	2296	ab0f429587409856cbf8b7eeda784818_JaffaCakes118.exe	31
PID 2296 wrote to memory of 2240	2296	ab0f429587409856cbf8b7eeda784818_JaffaCakes118.exe	31
PID 2296 wrote to memory of 2240	2296	ab0f429587409856cbf8b7eeda784818_JaffaCakes118.exe	31

C:\Users\Admin\AppData\Local\Temp\ab0f429587409856cbf8b7eeda784818_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\ab0f429587409856cbf8b7eeda784818_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2296
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  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:2240

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

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Web Service

1

T1102

Exfiltration

Impact

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Downloads

memory/2240-29-0x0000000000880000-0x0000000000894000-memory.dmp

Filesize
80KB

Download
memory/2240-30-0x0000000001240000-0x0000000001250000-memory.dmp

Filesize
64KB

Download
memory/2240-36-0x0000000004C60000-0x0000000004C74000-memory.dmp

Filesize
80KB

Download
memory/2240-35-0x0000000004C20000-0x0000000004C4E000-memory.dmp

Filesize
184KB

Download
memory/2240-34-0x0000000002850000-0x000000000285A000-memory.dmp

Filesize
40KB

Download
memory/2240-25-0x0000000000780000-0x000000000078E000-memory.dmp

Filesize
56KB

Download
memory/2240-7-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/2240-18-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/2240-16-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/2240-14-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/2240-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2240-11-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/2240-10-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/2240-8-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/2240-26-0x0000000000790000-0x00000000007A2000-memory.dmp

Filesize
72KB

Download
memory/2240-33-0x00000000027F0000-0x000000000280E000-memory.dmp

Filesize
120KB

Download
memory/2240-32-0x00000000026E0000-0x00000000026EE000-memory.dmp

Filesize
56KB

Download
memory/2240-24-0x0000000000710000-0x000000000072A000-memory.dmp

Filesize
104KB

Download
memory/2240-27-0x00000000007A0000-0x00000000007AE000-memory.dmp

Filesize
56KB

Download
memory/2240-28-0x0000000000830000-0x000000000083C000-memory.dmp

Filesize
48KB

Download
memory/2240-22-0x00000000006B0000-0x00000000006BA000-memory.dmp

Filesize
40KB

Download
memory/2240-31-0x0000000001250000-0x0000000001264000-memory.dmp

Filesize
80KB

Download
memory/2240-23-0x00000000006C0000-0x00000000006D2000-memory.dmp

Filesize
72KB

Download
memory/2296-0-0x00000000744DE000-0x00000000744DF000-memory.dmp

Filesize
4KB

Download
memory/2296-19-0x00000000744D0000-0x0000000074BBE000-memory.dmp

Filesize
6.9MB

Download
memory/2296-1-0x0000000000150000-0x00000000001E4000-memory.dmp

Filesize
592KB

Download
memory/2296-5-0x0000000004740000-0x00000000047D4000-memory.dmp

Filesize
592KB

Download
memory/2296-4-0x00000000744D0000-0x0000000074BBE000-memory.dmp

Filesize
6.9MB

Download
memory/2296-3-0x00000000744DE000-0x00000000744DF000-memory.dmp

Filesize
4KB

Download
memory/2296-2-0x00000000744D0000-0x0000000074BBE000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads