nanocore | 64f59fbe4b383b157c81adf3439876610a99c42ac6d9160810d53dae0a0114ce

General

Target

64F59FBE4B383B157C81ADF3439876610A99C42AC6D91.exe
Size

328KB
MD5

d4c5e5e909ff0def4cd6be23a09d43ae
SHA1

d7ce18914c638c66d6e5377c40adf22c7c847289
SHA256

64f59fbe4b383b157c81adf3439876610a99c42ac6d9160810d53dae0a0114ce
SHA512

01bdbe9a459ded687f875c63d82310b2cedea994476560b092e63dfabfe2b68ded767f6fb423fb38637cdc40645588e44a8a7a7dd8cf2913650a89760c428af9
SSDEEP

6144:ty3ZvTcfs331nuT8n2+a0JDj21k4/WQUDu5IYuVpij4eNtkH9d7mCvd:t0vTcfsHcwn2+tkVODDOqgUKt+3mC

Score

10^/10

nanocore evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

intercambiotestg99.duckdns.org:1501

Mutex

38adc800-c0b8-451a-9a6c-a172c6e3f300

Attributes

activate_away_mode
true
backup_connection_host
intercambiotestg99.duckdns.org
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2017-06-21T02:56:21.560821236Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
true
clear_zone_identifier
true
connect_delay
4000
connection_port
1501
default_group
Team
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
38adc800-c0b8-451a-9a6c-a172c6e3f300
mutex_timeout
5000
prevent_system_sleep
true
primary_connection_host
primary_dns_server
8.8.8.8
request_elevation
true
restart_delay
5000
run_delay
0
run_on_startup
true
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
Executes dropped EXE 2 IoCs

Processes:

complementooffice.execomplementooffice.exe

pid process

3992 complementooffice.exe
2824 complementooffice.exe

pid	process
3992	complementooffice.exe
2824	complementooffice.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

Processes:

64F59FBE4B383B157C81ADF3439876610A99C42AC6D91.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation	64F59FBE4B383B157C81ADF3439876610A99C42AC6D91.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

64F59FBE4B383B157C81ADF3439876610A99C42AC6D91.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Try2 = "C:\\Users\\Admin\\Documents\\complementooffice.exe -boot"	64F59FBE4B383B157C81ADF3439876610A99C42AC6D91.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

complementooffice.exe

description ioc process

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

Processes:

complementooffice.exe

description pid process target process

PID 3992 set thread context of 2824 3992 complementooffice.exe complementooffice.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

complementooffice.exe

pid process

2824 complementooffice.exe
2824 complementooffice.exe
2824 complementooffice.exe
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

complementooffice.exe

pid process

2824 complementooffice.exe

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

description	pid	process	target process
PID 3992 set thread context of 2824	3992	complementooffice.exe	complementooffice.exe

pid	process
2824	complementooffice.exe
2824	complementooffice.exe
2824	complementooffice.exe

pid	process
2824	complementooffice.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

64F59FBE4B383B157C81ADF3439876610A99C42AC6D91.execomplementooffice.execomplementooffice.exe

description	pid	process
Token: SeDebugPrivilege	4440	64F59FBE4B383B157C81ADF3439876610A99C42AC6D91.exe
Token: SeDebugPrivilege	3992	complementooffice.exe
Token: SeDebugPrivilege	2824	complementooffice.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

64F59FBE4B383B157C81ADF3439876610A99C42AC6D91.execomplementooffice.exe

description	pid	process	target process
PID 4440 wrote to memory of 3992	4440	64F59FBE4B383B157C81ADF3439876610A99C42AC6D91.exe	complementooffice.exe
PID 4440 wrote to memory of 3992	4440	64F59FBE4B383B157C81ADF3439876610A99C42AC6D91.exe	complementooffice.exe
PID 4440 wrote to memory of 3992	4440	64F59FBE4B383B157C81ADF3439876610A99C42AC6D91.exe	complementooffice.exe
PID 3992 wrote to memory of 2824	3992	complementooffice.exe	complementooffice.exe
PID 3992 wrote to memory of 2824	3992	complementooffice.exe	complementooffice.exe
PID 3992 wrote to memory of 2824	3992	complementooffice.exe	complementooffice.exe
PID 3992 wrote to memory of 2824	3992	complementooffice.exe	complementooffice.exe
PID 3992 wrote to memory of 2824	3992	complementooffice.exe	complementooffice.exe
PID 3992 wrote to memory of 2824	3992	complementooffice.exe	complementooffice.exe
PID 3992 wrote to memory of 2824	3992	complementooffice.exe	complementooffice.exe
PID 3992 wrote to memory of 2824	3992	complementooffice.exe	complementooffice.exe

C:\Users\Admin\AppData\Local\Temp\64F59FBE4B383B157C81ADF3439876610A99C42AC6D91.exe
"C:\Users\Admin\AppData\Local\Temp\64F59FBE4B383B157C81ADF3439876610A99C42AC6D91.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4440

C:\Users\Admin\Documents\complementooffice.exe
"C:\Users\Admin\Documents\complementooffice.exe"
2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3992

C:\Users\Admin\Documents\complementooffice.exe
"C:\Users\Admin\Documents\complementooffice.exe"
3⤵
- Executes dropped EXE
- Checks whether UAC is enabled
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
PID:2824

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

3

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\Documents\complementooffice.exe
Filesize
328KB

MD5
d4c5e5e909ff0def4cd6be23a09d43ae

SHA1
d7ce18914c638c66d6e5377c40adf22c7c847289

SHA256
64f59fbe4b383b157c81adf3439876610a99c42ac6d9160810d53dae0a0114ce

SHA512
01bdbe9a459ded687f875c63d82310b2cedea994476560b092e63dfabfe2b68ded767f6fb423fb38637cdc40645588e44a8a7a7dd8cf2913650a89760c428af9

Download Submit
C:\Users\Admin\Documents\complementooffice.exe
Filesize
328KB

MD5
d4c5e5e909ff0def4cd6be23a09d43ae

SHA1
d7ce18914c638c66d6e5377c40adf22c7c847289

SHA256
64f59fbe4b383b157c81adf3439876610a99c42ac6d9160810d53dae0a0114ce

SHA512
01bdbe9a459ded687f875c63d82310b2cedea994476560b092e63dfabfe2b68ded767f6fb423fb38637cdc40645588e44a8a7a7dd8cf2913650a89760c428af9

Download Submit
C:\Users\Admin\Documents\complementooffice.exe
Filesize
328KB

MD5
d4c5e5e909ff0def4cd6be23a09d43ae

SHA1
d7ce18914c638c66d6e5377c40adf22c7c847289

SHA256
64f59fbe4b383b157c81adf3439876610a99c42ac6d9160810d53dae0a0114ce

SHA512
01bdbe9a459ded687f875c63d82310b2cedea994476560b092e63dfabfe2b68ded767f6fb423fb38637cdc40645588e44a8a7a7dd8cf2913650a89760c428af9

Download Submit
memory/2824-141-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2824-140-0x0000000000000000-mapping.dmp

Download
memory/2824-144-0x0000000075300000-0x00000000758B1000-memory.dmp

Filesize
5.7MB

Download
memory/2824-145-0x0000000075300000-0x00000000758B1000-memory.dmp

Filesize
5.7MB

Download
memory/3992-134-0x0000000000000000-mapping.dmp

Download
memory/3992-138-0x0000000075300000-0x00000000758B1000-memory.dmp

Filesize
5.7MB

Download
memory/3992-139-0x0000000075300000-0x00000000758B1000-memory.dmp

Filesize
5.7MB

Download
memory/3992-143-0x0000000075300000-0x00000000758B1000-memory.dmp

Filesize
5.7MB

Download
memory/4440-137-0x0000000075300000-0x00000000758B1000-memory.dmp

Filesize
5.7MB

Download
memory/4440-132-0x0000000075300000-0x00000000758B1000-memory.dmp

Filesize
5.7MB

Download
memory/4440-133-0x0000000075300000-0x00000000758B1000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads