nanocore | bf645fad6cb23a9422e58a642b223a5d6a2dfc616c7480dfdd02393838f399b5

General

Target

bf645fad6cb23a9422e58a642b223a5d6a2dfc616c7480dfdd02393838f399b5.exe
Size

457KB
MD5

4b1355285874d490c406c2741930773f
SHA1

8694300fd305542289705b84f31055a10a3d7a4a
SHA256

bf645fad6cb23a9422e58a642b223a5d6a2dfc616c7480dfdd02393838f399b5
SHA512

29f86b6e4ca47e8315a9b799699ea695b48846cc6728afc853959041f8040639c3da71189f7c95bc38c196a11c35eeebc780ecf66ec073786dc13f57b571d12c

Score

10^/10

nanocore evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

cool.gotdns.ch:7451

Mutex

47128c17-dc06-470e-8718-2173a7e3bbbd

Attributes

activate_away_mode
true
backup_connection_host
cool.gotdns.ch
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2020-10-28T02:16:41.837658936Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
7451
default_group
KING
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
47128c17-dc06-470e-8718-2173a7e3bbbd
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
cool.gotdns.ch
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

Loads dropped DLL 2 IoCs

Processes:

bf645fad6cb23a9422e58a642b223a5d6a2dfc616c7480dfdd02393838f399b5.exe

pid	process
1236	bf645fad6cb23a9422e58a642b223a5d6a2dfc616c7480dfdd02393838f399b5.exe
1236	bf645fad6cb23a9422e58a642b223a5d6a2dfc616c7480dfdd02393838f399b5.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

bf645fad6cb23a9422e58a642b223a5d6a2dfc616c7480dfdd02393838f399b5.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000\Software\Microsoft\Windows\CurrentVersion\Run\KINGG.exe = "C:\\Users\\Admin\\AppData\\Roaming\\abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrst幵"	bf645fad6cb23a9422e58a642b223a5d6a2dfc616c7480dfdd02393838f399b5.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

bf645fad6cb23a9422e58a642b223a5d6a2dfc616c7480dfdd02393838f399b5.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	bf645fad6cb23a9422e58a642b223a5d6a2dfc616c7480dfdd02393838f399b5.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

bf645fad6cb23a9422e58a642b223a5d6a2dfc616c7480dfdd02393838f399b5.exe

description	pid	process	target process
PID 1236 set thread context of 2416	1236	bf645fad6cb23a9422e58a642b223a5d6a2dfc616c7480dfdd02393838f399b5.exe	bf645fad6cb23a9422e58a642b223a5d6a2dfc616c7480dfdd02393838f399b5.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 11 IoCs

Processes:

bf645fad6cb23a9422e58a642b223a5d6a2dfc616c7480dfdd02393838f399b5.exebf645fad6cb23a9422e58a642b223a5d6a2dfc616c7480dfdd02393838f399b5.exe

pid	process
1236	bf645fad6cb23a9422e58a642b223a5d6a2dfc616c7480dfdd02393838f399b5.exe
1236	bf645fad6cb23a9422e58a642b223a5d6a2dfc616c7480dfdd02393838f399b5.exe
1236	bf645fad6cb23a9422e58a642b223a5d6a2dfc616c7480dfdd02393838f399b5.exe
1236	bf645fad6cb23a9422e58a642b223a5d6a2dfc616c7480dfdd02393838f399b5.exe
1236	bf645fad6cb23a9422e58a642b223a5d6a2dfc616c7480dfdd02393838f399b5.exe
1236	bf645fad6cb23a9422e58a642b223a5d6a2dfc616c7480dfdd02393838f399b5.exe
1236	bf645fad6cb23a9422e58a642b223a5d6a2dfc616c7480dfdd02393838f399b5.exe
1236	bf645fad6cb23a9422e58a642b223a5d6a2dfc616c7480dfdd02393838f399b5.exe
2416	bf645fad6cb23a9422e58a642b223a5d6a2dfc616c7480dfdd02393838f399b5.exe
2416	bf645fad6cb23a9422e58a642b223a5d6a2dfc616c7480dfdd02393838f399b5.exe
2416	bf645fad6cb23a9422e58a642b223a5d6a2dfc616c7480dfdd02393838f399b5.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

bf645fad6cb23a9422e58a642b223a5d6a2dfc616c7480dfdd02393838f399b5.exe

pid process

2416 bf645fad6cb23a9422e58a642b223a5d6a2dfc616c7480dfdd02393838f399b5.exe
Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

bf645fad6cb23a9422e58a642b223a5d6a2dfc616c7480dfdd02393838f399b5.exe

pid process

1236 bf645fad6cb23a9422e58a642b223a5d6a2dfc616c7480dfdd02393838f399b5.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

bf645fad6cb23a9422e58a642b223a5d6a2dfc616c7480dfdd02393838f399b5.exe

description pid process

Token: SeDebugPrivilege 2416 bf645fad6cb23a9422e58a642b223a5d6a2dfc616c7480dfdd02393838f399b5.exe

pid	process
2416	bf645fad6cb23a9422e58a642b223a5d6a2dfc616c7480dfdd02393838f399b5.exe

description	pid	process
Token: SeDebugPrivilege	2416	bf645fad6cb23a9422e58a642b223a5d6a2dfc616c7480dfdd02393838f399b5.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

bf645fad6cb23a9422e58a642b223a5d6a2dfc616c7480dfdd02393838f399b5.exe

description	pid	process	target process
PID 1236 wrote to memory of 2416	1236	bf645fad6cb23a9422e58a642b223a5d6a2dfc616c7480dfdd02393838f399b5.exe	bf645fad6cb23a9422e58a642b223a5d6a2dfc616c7480dfdd02393838f399b5.exe
PID 1236 wrote to memory of 2416	1236	bf645fad6cb23a9422e58a642b223a5d6a2dfc616c7480dfdd02393838f399b5.exe	bf645fad6cb23a9422e58a642b223a5d6a2dfc616c7480dfdd02393838f399b5.exe
PID 1236 wrote to memory of 2416	1236	bf645fad6cb23a9422e58a642b223a5d6a2dfc616c7480dfdd02393838f399b5.exe	bf645fad6cb23a9422e58a642b223a5d6a2dfc616c7480dfdd02393838f399b5.exe
PID 1236 wrote to memory of 2416	1236	bf645fad6cb23a9422e58a642b223a5d6a2dfc616c7480dfdd02393838f399b5.exe	bf645fad6cb23a9422e58a642b223a5d6a2dfc616c7480dfdd02393838f399b5.exe

C:\Users\Admin\AppData\Local\Temp\bf645fad6cb23a9422e58a642b223a5d6a2dfc616c7480dfdd02393838f399b5.exe
"C:\Users\Admin\AppData\Local\Temp\bf645fad6cb23a9422e58a642b223a5d6a2dfc616c7480dfdd02393838f399b5.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:1236

C:\Users\Admin\AppData\Local\Temp\bf645fad6cb23a9422e58a642b223a5d6a2dfc616c7480dfdd02393838f399b5.exe
"C:\Users\Admin\AppData\Local\Temp\bf645fad6cb23a9422e58a642b223a5d6a2dfc616c7480dfdd02393838f399b5.exe"
2⤵
- Checks whether UAC is enabled
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
PID:2416

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

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\Local\Temp\nsk45F9.tmp\System.dll
MD5
fccff8cb7a1067e23fd2e2b63971a8e1

SHA1
30e2a9e137c1223a78a0f7b0bf96a1c361976d91

SHA256
6fcea34c8666b06368379c6c402b5321202c11b00889401c743fb96c516c679e

SHA512
f4335e84e6f8d70e462a22f1c93d2998673a7616c868177cac3e8784a3be1d7d0bb96f2583fa0ed82f4f2b6b8f5d9b33521c279a42e055d80a94b4f3f1791e0c

Download Submit
\Users\Admin\AppData\Local\Temp\v42dghx.dll
MD5
03267c739cfe0b16f42496f296a355f6

SHA1
e4fd62a75a0ea347fbe1dd5109396a43fa631e6a

SHA256
4dfa27d4ebfcb5f133ea01c07d274be195abe3c7d6726912b5db20dd30ef5252

SHA512
2dada3d5c2eac0f4fb46596f85eb7d6507cbca2cba51befafc5798ca1c48632a62cd25c1e1fa912ea25b0756b66a0e403119718688e6cc0fc56bd9cdf18decd8

Download Submit
memory/2416-4-0x000000000040188B-mapping.dmp

Download
memory/2416-6-0x00000000021E0000-0x00000000021E1000-memory.dmp

Filesize
4KB

Download
memory/2416-5-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download
memory/2416-7-0x00000000021E1000-0x00000000021E2000-memory.dmp

Filesize
4KB

Download
memory/2416-8-0x00000000021E2000-0x00000000021E4000-memory.dmp

Filesize
8KB

Download
memory/2416-9-0x00000000021E7000-0x00000000021E8000-memory.dmp

Filesize
4KB

Download
memory/2416-10-0x00000000021E8000-0x00000000021E9000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads