nanocore | 0b4b49b52c1dcff8ef56a5aacced6534726a4640f1db8e5f443e22acc4041665

General

Target

8c39cc62f2000ecba993c4007eee1fdd_JaffaCakes118.exe
Size

1.2MB
MD5

8c39cc62f2000ecba993c4007eee1fdd
SHA1

915d1a8ec37a47219df11fad59cfc6be9dfc831c
SHA256

0b4b49b52c1dcff8ef56a5aacced6534726a4640f1db8e5f443e22acc4041665
SHA512

17d48ba5534c2b9d639c73932d0b45443172ac4548cad87cb1a1e9ac6411a9aaa3e16320cd47985e7caa5137e8e4e7e7dcc49190fe5668f4bdc69ec92ff20895
SSDEEP

24576:EXpbtELnxtirAd1OPg/Q5hjEdi7CtTHvNGl+BIv50S:wbmDxtirAuPg/bKKLs0s

Score

10^/10

nanocore agilenet evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

160.116.15.155:7676

Mutex

3f96cee6-4510-4f1f-85d9-fc14fe0fe2bc

Attributes

activate_away_mode
true
backup_connection_host
160.116.15.155
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2019-05-17T08:53:58.555812536Z
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
Oh Father
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
3f96cee6-4510-4f1f-85d9-fc14fe0fe2bc
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
160.116.15.155
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

Drops startup file 1 IoCs

Processes:

8c39cc62f2000ecba993c4007eee1fdd_JaffaCakes118.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\HJdyTuap.exe	8c39cc62f2000ecba993c4007eee1fdd_JaffaCakes118.exe

Obfuscated with Agile.Net obfuscator 1 IoCs

Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.

agilenet

Processes:

resource	yara_rule
behavioral1/memory/2804-3-0x0000000004790000-0x0000000004840000-memory.dmp	agile_net

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

RegAsm.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\DDP Service = "C:\\Program Files (x86)\\DDP Service\\ddpsv.exe"	RegAsm.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

RegAsm.exe

description ioc process

Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA RegAsm.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

8c39cc62f2000ecba993c4007eee1fdd_JaffaCakes118.exe

description pid process target process

PID 2804 set thread context of 2204 2804 8c39cc62f2000ecba993c4007eee1fdd_JaffaCakes118.exe RegAsm.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	RegAsm.exe

description	pid	process	target process
PID 2804 set thread context of 2204	2804	8c39cc62f2000ecba993c4007eee1fdd_JaffaCakes118.exe	RegAsm.exe

Drops file in Program Files directory 2 IoCs

Processes:

RegAsm.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\DDP Service\ddpsv.exe	RegAsm.exe
File created	C:\Program Files (x86)\DDP Service\ddpsv.exe	RegAsm.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

RegAsm.exe

pid process

2204 RegAsm.exe
2204 RegAsm.exe
2204 RegAsm.exe
2204 RegAsm.exe
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

RegAsm.exe

pid process

2204 RegAsm.exe
Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

8c39cc62f2000ecba993c4007eee1fdd_JaffaCakes118.exe

pid process

2804 8c39cc62f2000ecba993c4007eee1fdd_JaffaCakes118.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

RegAsm.exe

description pid process

Token: SeDebugPrivilege 2204 RegAsm.exe

pid	process
2204	RegAsm.exe
2204	RegAsm.exe
2204	RegAsm.exe
2204	RegAsm.exe

pid	process
2204	RegAsm.exe

pid	process
2804	8c39cc62f2000ecba993c4007eee1fdd_JaffaCakes118.exe

description	pid	process
Token: SeDebugPrivilege	2204	RegAsm.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

8c39cc62f2000ecba993c4007eee1fdd_JaffaCakes118.exe

description	pid	process	target process
PID 2804 wrote to memory of 2204	2804	8c39cc62f2000ecba993c4007eee1fdd_JaffaCakes118.exe	RegAsm.exe
PID 2804 wrote to memory of 2204	2804	8c39cc62f2000ecba993c4007eee1fdd_JaffaCakes118.exe	RegAsm.exe
PID 2804 wrote to memory of 2204	2804	8c39cc62f2000ecba993c4007eee1fdd_JaffaCakes118.exe	RegAsm.exe
PID 2804 wrote to memory of 2204	2804	8c39cc62f2000ecba993c4007eee1fdd_JaffaCakes118.exe	RegAsm.exe
PID 2804 wrote to memory of 2204	2804	8c39cc62f2000ecba993c4007eee1fdd_JaffaCakes118.exe	RegAsm.exe
PID 2804 wrote to memory of 2204	2804	8c39cc62f2000ecba993c4007eee1fdd_JaffaCakes118.exe	RegAsm.exe
PID 2804 wrote to memory of 2204	2804	8c39cc62f2000ecba993c4007eee1fdd_JaffaCakes118.exe	RegAsm.exe
PID 2804 wrote to memory of 2204	2804	8c39cc62f2000ecba993c4007eee1fdd_JaffaCakes118.exe	RegAsm.exe

C:\Users\Admin\AppData\Local\Temp\8c39cc62f2000ecba993c4007eee1fdd_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\8c39cc62f2000ecba993c4007eee1fdd_JaffaCakes118.exe"
1⤵
- Drops startup file
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:2804

C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
"C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
2⤵
- Adds Run key to start application
- Checks whether UAC is enabled
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
PID:2204

Network

MITRE ATT&CK Matrix ATT&CK v13

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

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

memory/2204-9-0x0000000000400000-0x000000000047E000-memory.dmp

Filesize
504KB

Download
memory/2204-17-0x0000000071022000-0x0000000071024000-memory.dmp

Filesize
8KB

Download
memory/2204-14-0x0000000071022000-0x0000000071024000-memory.dmp

Filesize
8KB

Download
memory/2204-7-0x0000000000400000-0x000000000047E000-memory.dmp

Filesize
504KB

Download
memory/2204-11-0x0000000000400000-0x000000000047E000-memory.dmp

Filesize
504KB

Download
memory/2804-6-0x0000000074280000-0x000000007496E000-memory.dmp

Filesize
6.9MB

Download
memory/2804-0-0x000000007428E000-0x000000007428F000-memory.dmp

Filesize
4KB

Download
memory/2804-5-0x0000000000D60000-0x0000000000DDE000-memory.dmp

Filesize
504KB

Download
memory/2804-4-0x0000000074280000-0x000000007496E000-memory.dmp

Filesize
6.9MB

Download
memory/2804-12-0x0000000074280000-0x000000007496E000-memory.dmp

Filesize
6.9MB

Download
memory/2804-3-0x0000000004790000-0x0000000004840000-memory.dmp

Filesize
704KB

Download
memory/2804-13-0x0000000074280000-0x000000007496E000-memory.dmp

Filesize
6.9MB

Download
memory/2804-2-0x0000000000590000-0x0000000000598000-memory.dmp

Filesize
32KB

Download
memory/2804-1-0x0000000000F90000-0x00000000010C0000-memory.dmp

Filesize
1.2MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads