nanocore | 98f6d65cade358f4260e3aad9fbe81b9efc572a5572b4e7ee8969e67c890c945

General

Target

4d895b84b2264febb49c32552c9effb0N.exe
Size

280KB
MD5

4d895b84b2264febb49c32552c9effb0
SHA1

3a32ec33ac7489274f8653959541bf88b29491f5
SHA256

98f6d65cade358f4260e3aad9fbe81b9efc572a5572b4e7ee8969e67c890c945
SHA512

a91742c4bc68304bee2cc2a8c466061d08012c3f050ab27369dd4b5afd958e318b4444ab48a432236105ed0be4cff1835480e262bd1c11b70c833f27c0337bd7
SSDEEP

6144:boy5p178U0MURaGyNXYWQzHazRfXrwSRnWwhrQ66fK0a:boSeGUA5YZazpXUmZhZ6S/

Score

10^/10

nanocore evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

sysupdate24.ddns.net:45400

Mutex

ae82ab7f-db07-49ee-9d2b-76075d76f37f

Attributes

activate_away_mode
true
backup_connection_host
backup_dns_server
buffer_size
65535
build_time
2020-04-24T17:41:53.492468936Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
45400
default_group
Default
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
ae82ab7f-db07-49ee-9d2b-76075d76f37f
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
sysupdate24.ddns.net
primary_dns_server
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:

a1punf5t2of.exea1punf5t2of.exe

pid process

2752 a1punf5t2of.exe
2664 a1punf5t2of.exe
Loads dropped DLL 2 IoCs

Processes:

4d895b84b2264febb49c32552c9effb0N.exea1punf5t2of.exe

pid process

2932 4d895b84b2264febb49c32552c9effb0N.exe
2752 a1punf5t2of.exe

pid	process
2752	a1punf5t2of.exe
2664	a1punf5t2of.exe

pid	process
2932	4d895b84b2264febb49c32552c9effb0N.exe
2752	a1punf5t2of.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

4d895b84b2264febb49c32552c9effb0N.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe"	4d895b84b2264febb49c32552c9effb0N.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

a1punf5t2of.exe

description ioc process

Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA a1punf5t2of.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

a1punf5t2of.exe

description pid process target process

PID 2752 set thread context of 2664 2752 a1punf5t2of.exe a1punf5t2of.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

a1punf5t2of.exe

pid process

2664 a1punf5t2of.exe
2664 a1punf5t2of.exe
2664 a1punf5t2of.exe
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

a1punf5t2of.exe

pid process

2664 a1punf5t2of.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

a1punf5t2of.exe

description pid process

Token: SeDebugPrivilege 2664 a1punf5t2of.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	a1punf5t2of.exe

description	pid	process	target process
PID 2752 set thread context of 2664	2752	a1punf5t2of.exe	a1punf5t2of.exe

pid	process
2664	a1punf5t2of.exe
2664	a1punf5t2of.exe
2664	a1punf5t2of.exe

pid	process
2664	a1punf5t2of.exe

description	pid	process
Token: SeDebugPrivilege	2664	a1punf5t2of.exe

Suspicious use of WriteProcessMemory 19 IoCs

Processes:

4d895b84b2264febb49c32552c9effb0N.exea1punf5t2of.exe

description	pid	process	target process
PID 2932 wrote to memory of 2752	2932	4d895b84b2264febb49c32552c9effb0N.exe	a1punf5t2of.exe
PID 2932 wrote to memory of 2752	2932	4d895b84b2264febb49c32552c9effb0N.exe	a1punf5t2of.exe
PID 2932 wrote to memory of 2752	2932	4d895b84b2264febb49c32552c9effb0N.exe	a1punf5t2of.exe
PID 2932 wrote to memory of 2752	2932	4d895b84b2264febb49c32552c9effb0N.exe	a1punf5t2of.exe
PID 2932 wrote to memory of 2752	2932	4d895b84b2264febb49c32552c9effb0N.exe	a1punf5t2of.exe
PID 2932 wrote to memory of 2752	2932	4d895b84b2264febb49c32552c9effb0N.exe	a1punf5t2of.exe
PID 2932 wrote to memory of 2752	2932	4d895b84b2264febb49c32552c9effb0N.exe	a1punf5t2of.exe
PID 2752 wrote to memory of 2664	2752	a1punf5t2of.exe	a1punf5t2of.exe
PID 2752 wrote to memory of 2664	2752	a1punf5t2of.exe	a1punf5t2of.exe
PID 2752 wrote to memory of 2664	2752	a1punf5t2of.exe	a1punf5t2of.exe
PID 2752 wrote to memory of 2664	2752	a1punf5t2of.exe	a1punf5t2of.exe
PID 2752 wrote to memory of 2664	2752	a1punf5t2of.exe	a1punf5t2of.exe
PID 2752 wrote to memory of 2664	2752	a1punf5t2of.exe	a1punf5t2of.exe
PID 2752 wrote to memory of 2664	2752	a1punf5t2of.exe	a1punf5t2of.exe
PID 2752 wrote to memory of 2664	2752	a1punf5t2of.exe	a1punf5t2of.exe
PID 2752 wrote to memory of 2664	2752	a1punf5t2of.exe	a1punf5t2of.exe
PID 2752 wrote to memory of 2664	2752	a1punf5t2of.exe	a1punf5t2of.exe
PID 2752 wrote to memory of 2664	2752	a1punf5t2of.exe	a1punf5t2of.exe
PID 2752 wrote to memory of 2664	2752	a1punf5t2of.exe	a1punf5t2of.exe

C:\Users\Admin\AppData\Local\Temp\4d895b84b2264febb49c32552c9effb0N.exe
"C:\Users\Admin\AppData\Local\Temp\4d895b84b2264febb49c32552c9effb0N.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2932

C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
"C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2752

C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
"C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe"
3⤵
- Executes dropped EXE
- Checks whether UAC is enabled
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
PID:2664

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

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe

Filesize
280KB

MD5
3a939ee667716814604831e8e6705d4f

SHA1
0dec54f9d67f0bb8d5146ae62432798b5aa820d1

SHA256
367cef29955352c600505b6addc5f03cb2f7f77fab99e022dc84dfddf7e30f5f

SHA512
ea0d8dd633bf3cb23f385157c46f117c1d1abce7984b433032b8a340e880d6bdf016d665217244cb91effce5b0bbeb95d46a414f3e99fd768292c8b28698c20d

Download Submit
memory/2664-19-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2664-24-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2664-18-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2664-31-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2664-30-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2664-20-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2664-22-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2664-25-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2752-13-0x0000000074E20000-0x00000000753CB000-memory.dmp

Filesize
5.7MB

Download
memory/2752-34-0x0000000074E20000-0x00000000753CB000-memory.dmp

Filesize
5.7MB

Download
memory/2752-15-0x0000000074E20000-0x00000000753CB000-memory.dmp

Filesize
5.7MB

Download
memory/2752-14-0x0000000074E20000-0x00000000753CB000-memory.dmp

Filesize
5.7MB

Download
memory/2752-33-0x0000000074E20000-0x00000000753CB000-memory.dmp

Filesize
5.7MB

Download
memory/2752-16-0x0000000074E20000-0x00000000753CB000-memory.dmp

Filesize
5.7MB

Download
memory/2932-3-0x0000000074E20000-0x00000000753CB000-memory.dmp

Filesize
5.7MB

Download
memory/2932-2-0x0000000074E20000-0x00000000753CB000-memory.dmp

Filesize
5.7MB

Download
memory/2932-0-0x0000000074E21000-0x0000000074E22000-memory.dmp

Filesize
4KB

Download
memory/2932-11-0x0000000074E20000-0x00000000753CB000-memory.dmp

Filesize
5.7MB

Download
memory/2932-1-0x0000000074E20000-0x00000000753CB000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads