nanocore | 6be01e50e16e3b04ecc12d5c95265fedd7ed3e2c8b5125aa1eaef1d2ded5aef9

Analysis

max time kernel
139s
max time network
157s
platform
windows10_x64
resource
win10v20210408
submitted
14/07/2021, 15:14

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General

Target
64335a05c182d05824a82f83e439693a.exe
Size 778KB
Sample210714-z7am33datn
SHA256 6be01e50e16e3b04ecc12d5c95265fedd7ed3e2c8b5125aa1eaef1d2ded5aef9
MD5 64335a05c182d05824a82f83e439693a
SHA1 f1fa2740468de0d90409f7e853e34794be918e2e
SHA512 cd93c37e3f30094cc4894a1e13dde6e5dc160d2637dc1f33a7ecff487b2a3fd95ca5307dfdeaa29fa2ab57e7c83a0701c540390a7c3cc1a7d88645d4dd89b12e
MD5 SHA1 SHA512

Score

10^/10

nanocore evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

ioxg.ix.tc:5654

Mutex

c2fd2685-f89c-45f4-af6a-62d59a126c40

Attributes

activate_away_mode
true
backup_connection_host
ioxg.ix.tc
backup_dns_server
ioxg.ix.tc
buffer_size
65535
build_time
2021-04-24T18:13:43.373162936Z
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
5654
default_group
233
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
c2fd2685-f89c-45f4-af6a-62d59a126c40
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
ioxg.ix.tc
primary_dns_server
ioxg.ix.tc
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

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\UPNP Subsystem = "C:\\Program Files (x86)\\UPNP Subsystem\\upnpss.exe"	64335a05c182d05824a82f83e439693a.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	64335a05c182d05824a82f83e439693a.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 656 set thread context of 2300	656	64335a05c182d05824a82f83e439693a.exe	79

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\UPNP Subsystem\upnpss.exe	64335a05c182d05824a82f83e439693a.exe
File opened for modification	C:\Program Files (x86)\UPNP Subsystem\upnpss.exe	64335a05c182d05824a82f83e439693a.exe

Creates scheduled task(s) 1 TTPs 2 IoCs

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

persistence

Scheduled Task

T1053

pid	Process
4060	schtasks.exe
3744	schtasks.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
656	64335a05c182d05824a82f83e439693a.exe
656	64335a05c182d05824a82f83e439693a.exe
2300	64335a05c182d05824a82f83e439693a.exe
2300	64335a05c182d05824a82f83e439693a.exe
2300	64335a05c182d05824a82f83e439693a.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2300	64335a05c182d05824a82f83e439693a.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	656	64335a05c182d05824a82f83e439693a.exe
Token: SeDebugPrivilege	2300	64335a05c182d05824a82f83e439693a.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 656 wrote to memory of 2872	656	64335a05c182d05824a82f83e439693a.exe	78
PID 656 wrote to memory of 2872	656	64335a05c182d05824a82f83e439693a.exe	78
PID 656 wrote to memory of 2872	656	64335a05c182d05824a82f83e439693a.exe	78
PID 656 wrote to memory of 2300	656	64335a05c182d05824a82f83e439693a.exe	79
PID 656 wrote to memory of 2300	656	64335a05c182d05824a82f83e439693a.exe	79
PID 656 wrote to memory of 2300	656	64335a05c182d05824a82f83e439693a.exe	79
PID 656 wrote to memory of 2300	656	64335a05c182d05824a82f83e439693a.exe	79
PID 656 wrote to memory of 2300	656	64335a05c182d05824a82f83e439693a.exe	79
PID 656 wrote to memory of 2300	656	64335a05c182d05824a82f83e439693a.exe	79
PID 656 wrote to memory of 2300	656	64335a05c182d05824a82f83e439693a.exe	79
PID 656 wrote to memory of 2300	656	64335a05c182d05824a82f83e439693a.exe	79
PID 2300 wrote to memory of 4060	2300	64335a05c182d05824a82f83e439693a.exe	80
PID 2300 wrote to memory of 4060	2300	64335a05c182d05824a82f83e439693a.exe	80
PID 2300 wrote to memory of 4060	2300	64335a05c182d05824a82f83e439693a.exe	80
PID 2300 wrote to memory of 3744	2300	64335a05c182d05824a82f83e439693a.exe	82
PID 2300 wrote to memory of 3744	2300	64335a05c182d05824a82f83e439693a.exe	82
PID 2300 wrote to memory of 3744	2300	64335a05c182d05824a82f83e439693a.exe	82

C:\Users\Admin\AppData\Local\Temp\64335a05c182d05824a82f83e439693a.exe
"C:\Users\Admin\AppData\Local\Temp\64335a05c182d05824a82f83e439693a.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:656
- C:\Users\Admin\AppData\Local\Temp\64335a05c182d05824a82f83e439693a.exe
  "{path}"
  2⤵
  PID:2872
- C:\Users\Admin\AppData\Local\Temp\64335a05c182d05824a82f83e439693a.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:2300
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "UPNP Subsystem" /xml "C:\Users\Admin\AppData\Local\Temp\tmpF552.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:4060
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "UPNP Subsystem Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpF62E.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:3744

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

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/656-120-0x0000000008EB0000-0x0000000008EB1000-memory.dmp

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memory/656-118-0x0000000005860000-0x0000000005D5E000-memory.dmp

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memory/656-114-0x0000000000EF0000-0x0000000000EF1000-memory.dmp

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memory/656-121-0x0000000008E10000-0x0000000008E12000-memory.dmp

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memory/656-122-0x0000000005860000-0x0000000005D5E000-memory.dmp

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memory/656-123-0x0000000007300000-0x00000000073A5000-memory.dmp

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memory/656-124-0x0000000007550000-0x00000000075A8000-memory.dmp

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memory/656-116-0x0000000005D60000-0x0000000005D61000-memory.dmp

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memory/656-117-0x0000000005860000-0x0000000005861000-memory.dmp

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memory/656-119-0x00000000057E0000-0x00000000057E1000-memory.dmp

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memory/2300-134-0x0000000004ED0000-0x0000000004F62000-memory.dmp

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memory/2300-125-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/2300-139-0x00000000050B0000-0x00000000050B5000-memory.dmp

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memory/2300-140-0x00000000050C0000-0x00000000050D9000-memory.dmp

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memory/2300-141-0x0000000005350000-0x0000000005353000-memory.dmp

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