nanocore | 8faf173504f963edc3bf79873db39d9b8be858b8f39adeadda7ed54f618a6719

General

Target

92dee88250716a1b84069e41c47d342e_JaffaCakes118.exe
Size

508KB
MD5

92dee88250716a1b84069e41c47d342e
SHA1

b16fbfb6a7338d546abcd1e4215d611ac7d148fe
SHA256

8faf173504f963edc3bf79873db39d9b8be858b8f39adeadda7ed54f618a6719
SHA512

94f7e3f4cb003822f4144df6fc59da4fc5aa087111c00157f26b5a061c07655d5adb82e708807fc32fb8d7c2703e4ad5d94d6d00c02bff6b56cc6c06984cf148
SSDEEP

6144:Z3F48TZj4P9miwZWCJPd3ZWfysc3yFEPfN+fs10RZfaCrdYm:o21iShdJWKV3yFEPfN+UuZf

Score

10^/10

nanocore evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

zouina1.ddnsfree.com:9191

Mutex

b2ae6bf7-ff72-4f89-86db-259e08f05aeb

Attributes

activate_away_mode
true
backup_connection_host
zouina1.ddnsfree.com
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2020-05-10T15:55:47.848866436Z
bypass_user_account_control
false
bypass_user_account_control_data
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
clear_access_control
false
clear_zone_identifier
false
connect_delay
4000
connection_port
9191
default_group
Room1
enable_debug_mode
true
gc_threshold
1.0485748e+07
keep_alive_timeout
30000
keyboard_logging
false
lan_timeout
2500
max_packet_size
1.048576e+07
mutex
b2ae6bf7-ff72-4f89-86db-259e08f05aeb
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
zouina1.ddnsfree.com
primary_dns_server
8.8.8.8
request_elevation
false
restart_delay
5000
run_delay
0
run_on_startup
false
set_critical_process
false
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
Executes dropped EXE 1 IoCs

Processes:

RegAsm.exe

pid process

2676 RegAsm.exe
Loads dropped DLL 2 IoCs

Processes:

92dee88250716a1b84069e41c47d342e_JaffaCakes118.exeRegAsm.exe

pid process

1872 92dee88250716a1b84069e41c47d342e_JaffaCakes118.exe
2676 RegAsm.exe

pid	process
2676	RegAsm.exe

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

92dee88250716a1b84069e41c47d342e_JaffaCakes118.exe

description pid process target process

PID 1872 set thread context of 2676 1872 92dee88250716a1b84069e41c47d342e_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 1872 set thread context of 2676	1872	92dee88250716a1b84069e41c47d342e_JaffaCakes118.exe	RegAsm.exe

Drops file in Program Files directory 2 IoCs

Processes:

RegAsm.exe

description	ioc	process
File created	C:\Program Files (x86)\ARP Host\arphost.exe	RegAsm.exe
File opened for modification	C:\Program Files (x86)\ARP Host\arphost.exe	RegAsm.exe

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

2444 1872 WerFault.exe 92dee88250716a1b84069e41c47d342e_JaffaCakes118.exe
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task/Job
T1053

Processes:

schtasks.exeschtasks.exe

pid process

2256 schtasks.exe
832 schtasks.exe

pid	pid_target	process	target process
2444	1872	WerFault.exe	92dee88250716a1b84069e41c47d342e_JaffaCakes118.exe

pid	process
2256	schtasks.exe
832	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

92dee88250716a1b84069e41c47d342e_JaffaCakes118.exeRegAsm.exe

pid	process
1872	92dee88250716a1b84069e41c47d342e_JaffaCakes118.exe
1872	92dee88250716a1b84069e41c47d342e_JaffaCakes118.exe
1872	92dee88250716a1b84069e41c47d342e_JaffaCakes118.exe
2676	RegAsm.exe
2676	RegAsm.exe
2676	RegAsm.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

RegAsm.exe

pid process

2676 RegAsm.exe

pid	process
2676	RegAsm.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

92dee88250716a1b84069e41c47d342e_JaffaCakes118.exeRegAsm.exe

description	pid	process
Token: SeDebugPrivilege	1872	92dee88250716a1b84069e41c47d342e_JaffaCakes118.exe
Token: SeDebugPrivilege	2676	RegAsm.exe
Token: SeDebugPrivilege	2676	RegAsm.exe

Suspicious use of WriteProcessMemory 24 IoCs

Processes:

92dee88250716a1b84069e41c47d342e_JaffaCakes118.exeRegAsm.exe

description	pid	process	target process
PID 1872 wrote to memory of 2676	1872	92dee88250716a1b84069e41c47d342e_JaffaCakes118.exe	RegAsm.exe
PID 1872 wrote to memory of 2676	1872	92dee88250716a1b84069e41c47d342e_JaffaCakes118.exe	RegAsm.exe
PID 1872 wrote to memory of 2676	1872	92dee88250716a1b84069e41c47d342e_JaffaCakes118.exe	RegAsm.exe
PID 1872 wrote to memory of 2676	1872	92dee88250716a1b84069e41c47d342e_JaffaCakes118.exe	RegAsm.exe
PID 1872 wrote to memory of 2676	1872	92dee88250716a1b84069e41c47d342e_JaffaCakes118.exe	RegAsm.exe
PID 1872 wrote to memory of 2676	1872	92dee88250716a1b84069e41c47d342e_JaffaCakes118.exe	RegAsm.exe
PID 1872 wrote to memory of 2676	1872	92dee88250716a1b84069e41c47d342e_JaffaCakes118.exe	RegAsm.exe
PID 1872 wrote to memory of 2676	1872	92dee88250716a1b84069e41c47d342e_JaffaCakes118.exe	RegAsm.exe
PID 1872 wrote to memory of 2676	1872	92dee88250716a1b84069e41c47d342e_JaffaCakes118.exe	RegAsm.exe
PID 1872 wrote to memory of 2676	1872	92dee88250716a1b84069e41c47d342e_JaffaCakes118.exe	RegAsm.exe
PID 1872 wrote to memory of 2676	1872	92dee88250716a1b84069e41c47d342e_JaffaCakes118.exe	RegAsm.exe
PID 1872 wrote to memory of 2676	1872	92dee88250716a1b84069e41c47d342e_JaffaCakes118.exe	RegAsm.exe
PID 1872 wrote to memory of 2444	1872	92dee88250716a1b84069e41c47d342e_JaffaCakes118.exe	WerFault.exe
PID 1872 wrote to memory of 2444	1872	92dee88250716a1b84069e41c47d342e_JaffaCakes118.exe	WerFault.exe
PID 1872 wrote to memory of 2444	1872	92dee88250716a1b84069e41c47d342e_JaffaCakes118.exe	WerFault.exe
PID 1872 wrote to memory of 2444	1872	92dee88250716a1b84069e41c47d342e_JaffaCakes118.exe	WerFault.exe
PID 2676 wrote to memory of 2256	2676	RegAsm.exe	schtasks.exe
PID 2676 wrote to memory of 2256	2676	RegAsm.exe	schtasks.exe
PID 2676 wrote to memory of 2256	2676	RegAsm.exe	schtasks.exe
PID 2676 wrote to memory of 2256	2676	RegAsm.exe	schtasks.exe
PID 2676 wrote to memory of 832	2676	RegAsm.exe	schtasks.exe
PID 2676 wrote to memory of 832	2676	RegAsm.exe	schtasks.exe
PID 2676 wrote to memory of 832	2676	RegAsm.exe	schtasks.exe
PID 2676 wrote to memory of 832	2676	RegAsm.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\92dee88250716a1b84069e41c47d342e_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\92dee88250716a1b84069e41c47d342e_JaffaCakes118.exe"
1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1872

C:\Users\Admin\AppData\Local\Temp\RegAsm.exe
"C:\Users\Admin\AppData\Local\Temp\RegAsm.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- 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
- Suspicious use of WriteProcessMemory
PID:2676

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "ARP Host" /xml "C:\Users\Admin\AppData\Local\Temp\tmpC948.tmp"
3⤵
- Creates scheduled task(s)
PID:2256

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "ARP Host Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpC9B6.tmp"
3⤵
- Creates scheduled task(s)
PID:832

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1872 -s 780
2⤵
- Program crash
PID:2444

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Scheduled Task/Job

1

T1053

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

Scheduled Task/Job

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

Scheduled Task/Job

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

C:\Users\Admin\AppData\Local\Temp\tmpC948.tmp
Filesize
1KB

MD5
4cd7da0133ff64f40216341d95fe30bb

SHA1
88146cfd7754b988f50e929d876f33dc9916758f

SHA256
37cce77e24a3c3d5ab28c16f726ef6a62c553acd972e256927f69064c4e1cfde

SHA512
fa5b84f207fd9f20b2eace6cda9124e9d718fc80dc0a5fab31507f372d15ba69e1098a26e2e7036ba559ca52a99cfd804ca99ba68bda0a60386a33197722df8f

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpC9B6.tmp
Filesize
1KB

MD5
447ab194ab36cb1d20078d80e502b1b2

SHA1
a947b3b2c91d7c50bb8d39bd4fc91a0d0cc5b1c0

SHA256
8d5304b20b7d7dea223ce2738e5668054250d57bf6bed86b305b69924bd472f5

SHA512
49ddc557f7f6635627eea9bf0fa12a14b7b13edb235ed560ee0044a7f87fe27b686ff878d347d0273d92eb0b318b8c2bca85c0fbf42d586ed7d7da39eac6a327

Download Submit
\Users\Admin\AppData\Local\Temp\RegAsm.exe
Filesize
63KB

MD5
b58b926c3574d28d5b7fdd2ca3ec30d5

SHA1
d260c4ffd603a9cfc057fcb83d678b1cecdf86f9

SHA256
6e70b56d748c4ccab13cc8a055d3795ea0dd95fe3b70568d7d3ac0c6621140a3

SHA512
b13cb998822b716b695013bcd6dec62a2290567d0d1743b2d982ca084235cf69c6ea1fc91c9d4e62657c6f9e102c7c60e81296ab055ffe43b887c5f8ec8958ab

Download Submit
memory/1872-1-0x0000000000CC0000-0x0000000000D46000-memory.dmp

Filesize
536KB

Download
memory/1872-2-0x00000000005C0000-0x00000000005E0000-memory.dmp

Filesize
128KB

Download
memory/1872-3-0x0000000074230000-0x000000007491E000-memory.dmp

Filesize
6.9MB

Download
memory/1872-4-0x0000000074230000-0x000000007491E000-memory.dmp

Filesize
6.9MB

Download
memory/1872-5-0x0000000000600000-0x000000000060A000-memory.dmp

Filesize
40KB

Download
memory/1872-6-0x0000000074230000-0x000000007491E000-memory.dmp

Filesize
6.9MB

Download
memory/1872-8-0x0000000000A40000-0x0000000000A4A000-memory.dmp

Filesize
40KB

Download
memory/1872-40-0x0000000074230000-0x000000007491E000-memory.dmp

Filesize
6.9MB

Download
memory/1872-0-0x000000007423E000-0x000000007423F000-memory.dmp

Filesize
4KB

Download
memory/2676-18-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2676-14-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2676-22-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2676-26-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2676-27-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2676-16-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2676-20-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2676-37-0x00000000003F0000-0x00000000003FA000-memory.dmp

Filesize
40KB

Download
memory/2676-38-0x00000000004F0000-0x000000000050E000-memory.dmp

Filesize
120KB

Download
memory/2676-39-0x0000000000870000-0x000000000087A000-memory.dmp

Filesize
40KB

Download
memory/2676-12-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads