nanocore | cc566277bb275dde9c670ecd2d89c9d3a0e3b22cb8aa28b4d564d4b8232bbc7e

Analysis

max time kernel
118s
max time network
153s
platform
windows10_x64
resource
win10
submitted
18/10/2020, 06:35

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General

Target
vC4qh30p9mw3YNB.exe
Size 538KB
Sample201018-631fxkfkms
SHA256 cc566277bb275dde9c670ecd2d89c9d3a0e3b22cb8aa28b4d564d4b8232bbc7e
MD5 d66f4b72fedd2c4981fbdd7d28a72e00
SHA1 64c7758d0fac26207795e8ebb7212b738b029deb
SHA512 6ab4f63ed0dfccc9529ba86f73a863373e6df3c1e51b01c0a657b232969470c6537cf582d84c72fdf9a36ed2eec2e6be02568d73b9e89a80454945166f7697bd
MD5 SHA1 SHA512

Score

10^/10

persistence evasion trojan keylogger stealer spyware nanocore

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

hotwireboxes4.ddns.net:5353
127.0.0.1:5353

Mutex

50dbad3e-032c-4487-a9c3-559e7fcea6cc

Attributes

activate_away_mode
true
backup_connection_host
127.0.0.1
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2020-07-30T03:46:13.682975736Z
bypass_user_account_control
false
bypass_user_account_control_data
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
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
5353
default_group
Hot Wire Boxes
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
50dbad3e-032c-4487-a9c3-559e7fcea6cc
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
hotwireboxes4.ddns.net
primary_dns_server
8.8.8.8
request_elevation
true
restart_delay
5000
run_delay
0
run_on_startup
false
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
Looks for VirtualBox Guest Additions in registry 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497
Looks for VMWare Tools registry key 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

Checks BIOS information in registry 2 TTPs 2 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	vC4qh30p9mw3YNB.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	vC4qh30p9mw3YNB.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\DDP Subsystem = "C:\\Program Files (x86)\\DDP Subsystem\\ddpss.exe"	vC4qh30p9mw3YNB.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	vC4qh30p9mw3YNB.exe

Maps connected drives based on registry 3 TTPs 2 IoCs

Disk information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	vC4qh30p9mw3YNB.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum\0	vC4qh30p9mw3YNB.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3828 set thread context of 2152	3828	vC4qh30p9mw3YNB.exe	79

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\DDP Subsystem\ddpss.exe	vC4qh30p9mw3YNB.exe
File opened for modification	C:\Program Files (x86)\DDP Subsystem\ddpss.exe	vC4qh30p9mw3YNB.exe

Creates scheduled task(s) 1 TTPs 3 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task

T1053

pid	Process
1852	schtasks.exe
2824	schtasks.exe
2276	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2152	vC4qh30p9mw3YNB.exe
2152	vC4qh30p9mw3YNB.exe
2152	vC4qh30p9mw3YNB.exe
2152	vC4qh30p9mw3YNB.exe
2152	vC4qh30p9mw3YNB.exe
2152	vC4qh30p9mw3YNB.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2152	vC4qh30p9mw3YNB.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2152	vC4qh30p9mw3YNB.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 3828 wrote to memory of 1852	3828	vC4qh30p9mw3YNB.exe	77
PID 3828 wrote to memory of 1852	3828	vC4qh30p9mw3YNB.exe	77
PID 3828 wrote to memory of 1852	3828	vC4qh30p9mw3YNB.exe	77
PID 3828 wrote to memory of 2152	3828	vC4qh30p9mw3YNB.exe	79
PID 3828 wrote to memory of 2152	3828	vC4qh30p9mw3YNB.exe	79
PID 3828 wrote to memory of 2152	3828	vC4qh30p9mw3YNB.exe	79
PID 3828 wrote to memory of 2152	3828	vC4qh30p9mw3YNB.exe	79
PID 3828 wrote to memory of 2152	3828	vC4qh30p9mw3YNB.exe	79
PID 3828 wrote to memory of 2152	3828	vC4qh30p9mw3YNB.exe	79
PID 3828 wrote to memory of 2152	3828	vC4qh30p9mw3YNB.exe	79
PID 3828 wrote to memory of 2152	3828	vC4qh30p9mw3YNB.exe	79
PID 2152 wrote to memory of 2824	2152	vC4qh30p9mw3YNB.exe	80
PID 2152 wrote to memory of 2824	2152	vC4qh30p9mw3YNB.exe	80
PID 2152 wrote to memory of 2824	2152	vC4qh30p9mw3YNB.exe	80
PID 2152 wrote to memory of 2276	2152	vC4qh30p9mw3YNB.exe	82
PID 2152 wrote to memory of 2276	2152	vC4qh30p9mw3YNB.exe	82
PID 2152 wrote to memory of 2276	2152	vC4qh30p9mw3YNB.exe	82

C:\Users\Admin\AppData\Local\Temp\vC4qh30p9mw3YNB.exe
"C:\Users\Admin\AppData\Local\Temp\vC4qh30p9mw3YNB.exe"
1⤵
- Checks BIOS information in registry
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3828
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\BcqDAiQPbD" /XML "C:\Users\Admin\AppData\Local\Temp\tmpAD7C.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:1852
- C:\Users\Admin\AppData\Local\Temp\vC4qh30p9mw3YNB.exe
  "{path}"
  2⤵
  - 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:2152
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "DDP Subsystem" /xml "C:\Users\Admin\AppData\Local\Temp\tmpB3E4.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:2824
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "DDP Subsystem Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpB443.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:2276

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Registry Run Keys / Startup Folder

T1060

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Modify Registry

T1112

Virtualization/Sandbox Evasion

T1497

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Virtualization/Sandbox Evasion

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/2152-31-0x00000000071C0000-0x00000000071C6000-memory.dmp

Download

memory/2152-34-0x00000000071F0000-0x00000000071F6000-memory.dmp

Download

memory/2152-40-0x0000000007290000-0x000000000729F000-memory.dmp

Download

memory/2152-39-0x0000000007250000-0x0000000007279000-memory.dmp

Download

memory/2152-38-0x0000000007240000-0x000000000724A000-memory.dmp

Download

memory/2152-37-0x0000000007220000-0x000000000722F000-memory.dmp

Download

memory/2152-12-0x0000000000400000-0x0000000000438000-memory.dmp

Download

memory/2152-36-0x0000000007210000-0x0000000007219000-memory.dmp

Download

memory/2152-15-0x0000000073580000-0x0000000073C6E000-memory.dmp

Download

memory/2152-35-0x0000000007200000-0x000000000720D000-memory.dmp

Download

memory/2152-33-0x00000000071E0000-0x00000000071E7000-memory.dmp

Download

memory/2152-32-0x00000000071D0000-0x00000000071DC000-memory.dmp

Download

memory/2152-30-0x0000000006A30000-0x0000000006A45000-memory.dmp

Download

memory/2152-26-0x00000000059B0000-0x00000000059B5000-memory.dmp

Download

memory/2152-27-0x0000000005B20000-0x0000000005B39000-memory.dmp

Download

memory/2152-28-0x0000000006A20000-0x0000000006A23000-memory.dmp

Download

memory/2152-29-0x0000000006A10000-0x0000000006A1D000-memory.dmp

Download

memory/3828-1-0x0000000000AC0000-0x0000000000AC1000-memory.dmp

Download

memory/3828-0-0x0000000073580000-0x0000000073C6E000-memory.dmp

Download

memory/3828-3-0x00000000058C0000-0x00000000058C1000-memory.dmp

Download

memory/3828-7-0x0000000005390000-0x00000000053A6000-memory.dmp

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memory/3828-4-0x00000000053C0000-0x00000000053C1000-memory.dmp

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memory/3828-5-0x0000000005370000-0x0000000005371000-memory.dmp

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memory/3828-6-0x0000000005650000-0x0000000005651000-memory.dmp

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memory/3828-9-0x0000000006260000-0x0000000006261000-memory.dmp

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memory/3828-8-0x0000000006180000-0x00000000061E0000-memory.dmp

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