nanocore | 6d16110bddc20d35d1b19fb6cfc9521c78b56d2eb9f57e27da3e62461b0cef01

General

Target

a785d83754fab56e2e0b55490686584b_JaffaCakes118.exe
Size

722KB
MD5

a785d83754fab56e2e0b55490686584b
SHA1

8e4fafdd41ebfa609607debb83681b99a777ab10
SHA256

6d16110bddc20d35d1b19fb6cfc9521c78b56d2eb9f57e27da3e62461b0cef01
SHA512

7979858efdca6b4e174d522a57356e2b08b6c446cce4658f6911fcc84c3d43934360a844af4ba2ab7a5ff49dee82fc920480f57826cc293a0fb81f1d0e84218c
SSDEEP

12288:MbQ+X8+UiDLbRHahXUy/v0bp36JI0Vj9jQBbE8T+JBenCBiHMFlx:MbQ+X8+UiDLbRHahXUTl3UxQBb1THYRl

Score

10^/10

nanocore discovery evasion execution keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

believe2021.ddns.net:8181

127.0.0.1:8181

Mutex

1cac6758-af91-4c53-8daf-0376fffcb45c

Attributes

activate_away_mode
true
backup_connection_host
127.0.0.1
backup_dns_server
37.235.1.177
buffer_size
65535
build_time
2021-07-12T08:02:53.472557736Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
8181
default_group
AAAAALINGN
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
1cac6758-af91-4c53-8daf-0376fffcb45c
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
believe2021.ddns.net
primary_dns_server
37.235.1.174
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

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
5000	powershell.exe

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-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	a785d83754fab56e2e0b55490686584b_JaffaCakes118.exe

Unexpected DNS network traffic destination 7 IoCs

Network traffic to other servers than the configured DNS servers was detected on the DNS port.

description	ioc
Destination IP	37.235.1.177
Destination IP	37.235.1.177
Destination IP	37.235.1.174
Destination IP	37.235.1.174
Destination IP	37.235.1.174
Destination IP	37.235.1.174
Destination IP	37.235.1.177

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\ARP Host = "C:\\Program Files (x86)\\ARP Host\\arphost.exe"	a785d83754fab56e2e0b55490686584b_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	a785d83754fab56e2e0b55490686584b_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2568 set thread context of 1476	2568	a785d83754fab56e2e0b55490686584b_JaffaCakes118.exe	94

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\ARP Host\arphost.exe	a785d83754fab56e2e0b55490686584b_JaffaCakes118.exe
File opened for modification	C:\Program Files (x86)\ARP Host\arphost.exe	a785d83754fab56e2e0b55490686584b_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 4 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	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a785d83754fab56e2e0b55490686584b_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a785d83754fab56e2e0b55490686584b_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
4764	schtasks.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
2568	a785d83754fab56e2e0b55490686584b_JaffaCakes118.exe
2568	a785d83754fab56e2e0b55490686584b_JaffaCakes118.exe
2568	a785d83754fab56e2e0b55490686584b_JaffaCakes118.exe
2568	a785d83754fab56e2e0b55490686584b_JaffaCakes118.exe
1476	a785d83754fab56e2e0b55490686584b_JaffaCakes118.exe
1476	a785d83754fab56e2e0b55490686584b_JaffaCakes118.exe
1476	a785d83754fab56e2e0b55490686584b_JaffaCakes118.exe
5000	powershell.exe
5000	powershell.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1476	a785d83754fab56e2e0b55490686584b_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2568	a785d83754fab56e2e0b55490686584b_JaffaCakes118.exe
Token: SeDebugPrivilege	1476	a785d83754fab56e2e0b55490686584b_JaffaCakes118.exe
Token: SeDebugPrivilege	5000	powershell.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 2568 wrote to memory of 5000	2568	a785d83754fab56e2e0b55490686584b_JaffaCakes118.exe	91
PID 2568 wrote to memory of 5000	2568	a785d83754fab56e2e0b55490686584b_JaffaCakes118.exe	91
PID 2568 wrote to memory of 5000	2568	a785d83754fab56e2e0b55490686584b_JaffaCakes118.exe	91
PID 2568 wrote to memory of 4764	2568	a785d83754fab56e2e0b55490686584b_JaffaCakes118.exe	93
PID 2568 wrote to memory of 4764	2568	a785d83754fab56e2e0b55490686584b_JaffaCakes118.exe	93
PID 2568 wrote to memory of 4764	2568	a785d83754fab56e2e0b55490686584b_JaffaCakes118.exe	93
PID 2568 wrote to memory of 1476	2568	a785d83754fab56e2e0b55490686584b_JaffaCakes118.exe	94
PID 2568 wrote to memory of 1476	2568	a785d83754fab56e2e0b55490686584b_JaffaCakes118.exe	94
PID 2568 wrote to memory of 1476	2568	a785d83754fab56e2e0b55490686584b_JaffaCakes118.exe	94
PID 2568 wrote to memory of 1476	2568	a785d83754fab56e2e0b55490686584b_JaffaCakes118.exe	94
PID 2568 wrote to memory of 1476	2568	a785d83754fab56e2e0b55490686584b_JaffaCakes118.exe	94
PID 2568 wrote to memory of 1476	2568	a785d83754fab56e2e0b55490686584b_JaffaCakes118.exe	94
PID 2568 wrote to memory of 1476	2568	a785d83754fab56e2e0b55490686584b_JaffaCakes118.exe	94
PID 2568 wrote to memory of 1476	2568	a785d83754fab56e2e0b55490686584b_JaffaCakes118.exe	94

C:\Users\Admin\AppData\Local\Temp\a785d83754fab56e2e0b55490686584b_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\a785d83754fab56e2e0b55490686584b_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:2568
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\a785d83754fab56e2e0b55490686584b_JaffaCakes118.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:5000
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\EznmQhvn" /XML "C:\Users\Admin\AppData\Local\Temp\tmp5B98.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:4764
- C:\Users\Admin\AppData\Local\Temp\a785d83754fab56e2e0b55490686584b_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\a785d83754fab56e2e0b55490686584b_JaffaCakes118.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:1476

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_5bwuwsft.npx.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1476-14-0x0000000075340000-0x00000000758F1000-memory.dmp

Filesize
5.7MB

Download
memory/1476-13-0x0000000075340000-0x00000000758F1000-memory.dmp

Filesize
5.7MB

Download
memory/1476-63-0x0000000075340000-0x00000000758F1000-memory.dmp

Filesize
5.7MB

Download
memory/1476-17-0x0000000075340000-0x00000000758F1000-memory.dmp

Filesize
5.7MB

Download
memory/1476-10-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2568-4-0x0000000075340000-0x00000000758F1000-memory.dmp

Filesize
5.7MB

Download
memory/2568-3-0x0000000075342000-0x0000000075343000-memory.dmp

Filesize
4KB

Download
memory/2568-12-0x0000000075340000-0x00000000758F1000-memory.dmp

Filesize
5.7MB

Download
memory/2568-0-0x0000000075342000-0x0000000075343000-memory.dmp

Filesize
4KB

Download
memory/2568-1-0x0000000075340000-0x00000000758F1000-memory.dmp

Filesize
5.7MB

Download
memory/2568-2-0x0000000075340000-0x00000000758F1000-memory.dmp

Filesize
5.7MB

Download
memory/5000-37-0x0000000005E70000-0x0000000005EBC000-memory.dmp

Filesize
304KB

Download
memory/5000-49-0x0000000006DF0000-0x0000000006E0E000-memory.dmp

Filesize
120KB

Download
memory/5000-22-0x0000000004D80000-0x0000000004DA2000-memory.dmp

Filesize
136KB

Download
memory/5000-24-0x00000000721D0000-0x0000000072980000-memory.dmp

Filesize
7.7MB

Download
memory/5000-23-0x00000000057B0000-0x0000000005816000-memory.dmp

Filesize
408KB

Download
memory/5000-19-0x00000000721DE000-0x00000000721DF000-memory.dmp

Filesize
4KB

Download
memory/5000-35-0x0000000005990000-0x0000000005CE4000-memory.dmp

Filesize
3.3MB

Download
memory/5000-20-0x0000000005010000-0x0000000005638000-memory.dmp

Filesize
6.2MB

Download
memory/5000-36-0x0000000005E50000-0x0000000005E6E000-memory.dmp

Filesize
120KB

Download
memory/5000-15-0x00000000048A0000-0x00000000048D6000-memory.dmp

Filesize
216KB

Download
memory/5000-39-0x000000006F3C0000-0x000000006F40C000-memory.dmp

Filesize
304KB

Download
memory/5000-38-0x0000000006400000-0x0000000006432000-memory.dmp

Filesize
200KB

Download
memory/5000-50-0x0000000006E20000-0x0000000006EC3000-memory.dmp

Filesize
652KB

Download
memory/5000-18-0x00000000049D0000-0x00000000049E0000-memory.dmp

Filesize
64KB

Download
memory/5000-52-0x0000000007160000-0x000000000717A000-memory.dmp

Filesize
104KB

Download
memory/5000-51-0x00000000077A0000-0x0000000007E1A000-memory.dmp

Filesize
6.5MB

Download
memory/5000-53-0x00000000071D0000-0x00000000071DA000-memory.dmp

Filesize
40KB

Download
memory/5000-54-0x00000000073E0000-0x0000000007476000-memory.dmp

Filesize
600KB

Download
memory/5000-55-0x0000000007360000-0x0000000007371000-memory.dmp

Filesize
68KB

Download
memory/5000-56-0x0000000007390000-0x000000000739E000-memory.dmp

Filesize
56KB

Download
memory/5000-57-0x00000000073A0000-0x00000000073B4000-memory.dmp

Filesize
80KB

Download
memory/5000-59-0x0000000007480000-0x0000000007488000-memory.dmp

Filesize
32KB

Download
memory/5000-58-0x00000000074A0000-0x00000000074BA000-memory.dmp

Filesize
104KB

Download
memory/5000-62-0x00000000721D0000-0x0000000072980000-memory.dmp

Filesize
7.7MB

Download
memory/5000-25-0x0000000005820000-0x0000000005886000-memory.dmp

Filesize
408KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads