nanocore | 8222127c77b4f83832246e9ce96da7741f1352da9d3548ad8b959b2e00b54c0d

General

Target

10377 APT800_B0205K0384.exe
Size

1.5MB
MD5

4f0f86315b42b8dad8a1b430d5ac084a
SHA1

e50192512d5cf87ece05a1b3974fccc652eff93b
SHA256

8222127c77b4f83832246e9ce96da7741f1352da9d3548ad8b959b2e00b54c0d
SHA512

4f482b78bff1d42d5ec66088c3219628563af190a503c8508941f834f144cf6aba0517200c45e362d0eb83949c1ea23d77d39e1c1057e07efb6afec9a58076d4

Score

10^/10

nanocore evasion keylogger spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

mec.sytes.net:3259

Mutex

9358a53f-433c-42f5-bd3f-14ae4da528cf

Attributes

activate_away_mode
true
backup_connection_host
mec.sytes.net
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2021-04-04T14:41:53.527071936Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
true
clear_zone_identifier
true
connect_delay
4000
connection_port
3259
default_group
Mine
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
9358a53f-433c-42f5-bd3f-14ae4da528cf
mutex_timeout
5000
prevent_system_sleep
true
primary_connection_host
mec.sytes.net
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

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

10377 APT800_B0205K0384.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	10377 APT800_B0205K0384.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

10377 APT800_B0205K0384.exe

description pid process target process

PID 2004 set thread context of 1504 2004 10377 APT800_B0205K0384.exe 10377 APT800_B0205K0384.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exe

pid process

1572 schtasks.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

10377 APT800_B0205K0384.exe

pid process

1504 10377 APT800_B0205K0384.exe
1504 10377 APT800_B0205K0384.exe
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

10377 APT800_B0205K0384.exe

pid process

1504 10377 APT800_B0205K0384.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

10377 APT800_B0205K0384.exe

description pid process

Token: SeDebugPrivilege 1504 10377 APT800_B0205K0384.exe

description	pid	process	target process
PID 2004 set thread context of 1504	2004	10377 APT800_B0205K0384.exe	10377 APT800_B0205K0384.exe

pid	process
1572	schtasks.exe

pid	process
1504	10377 APT800_B0205K0384.exe
1504	10377 APT800_B0205K0384.exe

pid	process
1504	10377 APT800_B0205K0384.exe

description	pid	process
Token: SeDebugPrivilege	1504	10377 APT800_B0205K0384.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

10377 APT800_B0205K0384.exe

description	pid	process	target process
PID 2004 wrote to memory of 1572	2004	10377 APT800_B0205K0384.exe	schtasks.exe
PID 2004 wrote to memory of 1572	2004	10377 APT800_B0205K0384.exe	schtasks.exe
PID 2004 wrote to memory of 1572	2004	10377 APT800_B0205K0384.exe	schtasks.exe
PID 2004 wrote to memory of 1572	2004	10377 APT800_B0205K0384.exe	schtasks.exe
PID 2004 wrote to memory of 1504	2004	10377 APT800_B0205K0384.exe	10377 APT800_B0205K0384.exe
PID 2004 wrote to memory of 1504	2004	10377 APT800_B0205K0384.exe	10377 APT800_B0205K0384.exe
PID 2004 wrote to memory of 1504	2004	10377 APT800_B0205K0384.exe	10377 APT800_B0205K0384.exe
PID 2004 wrote to memory of 1504	2004	10377 APT800_B0205K0384.exe	10377 APT800_B0205K0384.exe
PID 2004 wrote to memory of 1504	2004	10377 APT800_B0205K0384.exe	10377 APT800_B0205K0384.exe
PID 2004 wrote to memory of 1504	2004	10377 APT800_B0205K0384.exe	10377 APT800_B0205K0384.exe
PID 2004 wrote to memory of 1504	2004	10377 APT800_B0205K0384.exe	10377 APT800_B0205K0384.exe
PID 2004 wrote to memory of 1504	2004	10377 APT800_B0205K0384.exe	10377 APT800_B0205K0384.exe
PID 2004 wrote to memory of 1504	2004	10377 APT800_B0205K0384.exe	10377 APT800_B0205K0384.exe

C:\Users\Admin\AppData\Local\Temp\10377 APT800_B0205K0384.exe
"C:\Users\Admin\AppData\Local\Temp\10377 APT800_B0205K0384.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2004

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\xErAccEJcQLD" /XML "C:\Users\Admin\AppData\Local\Temp\tmp4B90.tmp"
2⤵
- Creates scheduled task(s)
PID:1572

C:\Users\Admin\AppData\Local\Temp\10377 APT800_B0205K0384.exe
"{path}"
2⤵
- Checks whether UAC is enabled
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
PID:1504

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Credential Access

Discovery

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp4B90.tmp
MD5
b90a3348a4bfb38bdb529940975b8cf9

SHA1
9419344bbb037a6b04e5ab5a2ea4e56d712992b6

SHA256
f2c0422aef940c022ec5778632046c4a6cec604f168efca1b7cb944271cf932d

SHA512
2dd1c7cbae7ce6155971c6710512aca89dfa8547499520c4fa3330c274a920a2e8be994cdc98db1bc44327bb76677bdacb95e1f63ba2fe351384cb1baf677c05

Download Submit
memory/1504-58-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1504-59-0x000000000041E792-mapping.dmp

Download
memory/1504-61-0x0000000002140000-0x0000000002141000-memory.dmp

Filesize
4KB

Download
memory/1572-56-0x0000000000000000-mapping.dmp

Download
memory/2004-53-0x0000000075C11000-0x0000000075C13000-memory.dmp

Filesize
8KB

Download
memory/2004-54-0x00000000000A0000-0x00000000000A1000-memory.dmp

Filesize
4KB

Download
memory/2004-55-0x00000000000A1000-0x00000000000A2000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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