nanocore | 4f2796527de3fc5c66b47aab5e919120ce8214a90b950b0d08d5b4f65e94c66e

General

Target

e81c05c9d17296dec44db44756e98c57_JaffaCakes118.exe
Size

868KB
MD5

e81c05c9d17296dec44db44756e98c57
SHA1

98d1dd8d05a4d186e9de0fdb9b1247a949b614e9
SHA256

4f2796527de3fc5c66b47aab5e919120ce8214a90b950b0d08d5b4f65e94c66e
SHA512

b1b19a17628ae1a4f0bc9c5ce0245f1e53a8ee7d3e548fea371ff07fbdcedc7cd013ecc98ef09785dcd23d22d467b19dd9afa8d53738790fbbe088d2347fa1ee
SSDEEP

12288:q1sPLy/3dkSLshG+u5SoQNs3EgSFr9HcRaWo27Zz9s6Qb7zP0/J:wKdukoQNmEgSFB0ooZRsx

Score

10^/10

nanocore discovery evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

nanoman.ddns.net:7676

160.116.15.155:7676

Mutex

8720e31f-3f1c-488a-a576-b08a2b52f56c

Attributes

activate_away_mode
true
backup_connection_host
160.116.15.155
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2019-04-25T07:20:42.311795436Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
7676
default_group
New Life
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
8720e31f-3f1c-488a-a576-b08a2b52f56c
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
nanoman.ddns.net
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

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\WAN Subsystem = "C:\\Program Files (x86)\\WAN Subsystem\\wanss.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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2260 set thread context of 4848	2260	e81c05c9d17296dec44db44756e98c57_JaffaCakes118.exe	86

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\WAN Subsystem\wanss.exe	RegAsm.exe
File opened for modification	C:\Program Files (x86)\WAN Subsystem\wanss.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	e81c05c9d17296dec44db44756e98c57_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
2260	e81c05c9d17296dec44db44756e98c57_JaffaCakes118.exe
2260	e81c05c9d17296dec44db44756e98c57_JaffaCakes118.exe
2260	e81c05c9d17296dec44db44756e98c57_JaffaCakes118.exe
2260	e81c05c9d17296dec44db44756e98c57_JaffaCakes118.exe
2260	e81c05c9d17296dec44db44756e98c57_JaffaCakes118.exe
2260	e81c05c9d17296dec44db44756e98c57_JaffaCakes118.exe
2260	e81c05c9d17296dec44db44756e98c57_JaffaCakes118.exe
2260	e81c05c9d17296dec44db44756e98c57_JaffaCakes118.exe
4848	RegAsm.exe
4848	RegAsm.exe
4848	RegAsm.exe
4848	RegAsm.exe
4848	RegAsm.exe
4848	RegAsm.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4848	RegAsm.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
2260	e81c05c9d17296dec44db44756e98c57_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4848	RegAsm.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2260 wrote to memory of 4848	2260	e81c05c9d17296dec44db44756e98c57_JaffaCakes118.exe	86
PID 2260 wrote to memory of 4848	2260	e81c05c9d17296dec44db44756e98c57_JaffaCakes118.exe	86
PID 2260 wrote to memory of 4848	2260	e81c05c9d17296dec44db44756e98c57_JaffaCakes118.exe	86
PID 2260 wrote to memory of 4848	2260	e81c05c9d17296dec44db44756e98c57_JaffaCakes118.exe	86

C:\Users\Admin\AppData\Local\Temp\e81c05c9d17296dec44db44756e98c57_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\e81c05c9d17296dec44db44756e98c57_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:2260
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
  "C:\Users\Admin\AppData\Local\Temp\e81c05c9d17296dec44db44756e98c57_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:4848

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

Exfiltration

Impact

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Downloads

memory/2260-0-0x0000000002270000-0x0000000002271000-memory.dmp

Filesize
4KB

Download
memory/2260-2-0x0000000002270000-0x0000000002271000-memory.dmp

Filesize
4KB

Download
memory/2260-1-0x0000000002270000-0x0000000002271000-memory.dmp

Filesize
4KB

Download
memory/2260-10-0x0000000002270000-0x0000000002271000-memory.dmp

Filesize
4KB

Download
memory/2260-9-0x0000000002270000-0x0000000002271000-memory.dmp

Filesize
4KB

Download
memory/2260-8-0x0000000002270000-0x0000000002271000-memory.dmp

Filesize
4KB

Download
memory/2260-7-0x0000000002270000-0x0000000002271000-memory.dmp

Filesize
4KB

Download
memory/2260-6-0x0000000002270000-0x0000000002271000-memory.dmp

Filesize
4KB

Download
memory/2260-5-0x0000000002270000-0x0000000002271000-memory.dmp

Filesize
4KB

Download
memory/2260-4-0x0000000002270000-0x0000000002271000-memory.dmp

Filesize
4KB

Download
memory/2260-3-0x0000000002270000-0x0000000002271000-memory.dmp

Filesize
4KB

Download
memory/2260-13-0x0000000002270000-0x0000000002271000-memory.dmp

Filesize
4KB

Download
memory/2260-12-0x0000000002270000-0x0000000002271000-memory.dmp

Filesize
4KB

Download
memory/2260-11-0x0000000002270000-0x0000000002271000-memory.dmp

Filesize
4KB

Download
memory/4848-14-0x0000000000400000-0x000000000047E000-memory.dmp

Filesize
504KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads