nanocore | 78098846a197b5b8a1d18c8d63bb6d3ddbf63721a1362530a382fbba5a0e0b34

Analysis

max time kernel
150s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
17/08/2024, 03:53

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General

Target
a11ab784e6d3546992d20dd689053590_JaffaCakes118.exe
Size 1.3MB
Sample240817-efvkmayfpj
SHA256 78098846a197b5b8a1d18c8d63bb6d3ddbf63721a1362530a382fbba5a0e0b34
MD5 a11ab784e6d3546992d20dd689053590
SHA1 efb53ba66291154d758e033d24ad19a1567918db
SHA512 73b093e8fcf0c9c8b4d8bf83f1b210b10ced13b093482f63f771a41774a72e3bbfe0e617255f869be54cecdd0d356856af000e61cdd02a890f89e798c49091a2
SSDEEP 24576:3u6J33O0c+JY5UZ+XC0kGso6FaUngm/MmiTv5WYk:Ru0c++OCvkGs9FaoiTMYk
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

nanocore discovery evasion keylogger spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

microsoft.btc-crypto-rewards.cash:3020
91.192.100.7:3020

Mutex

8f96fcee-6a12-4372-9c82-ebf284f80be1

Attributes

activate_away_mode
true
backup_connection_host
91.192.100.7
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2018-12-17T05:15:58.097142536Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
3020
default_group
macro doc pop up
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
8f96fcee-6a12-4372-9c82-ebf284f80be1
mutex_timeout
5000
prevent_system_sleep
true
primary_connection_host
microsoft.btc-crypto-rewards.cash
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 computer location settings 2 TTPs 3 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\Control Panel\International\Geo\Nation	a11ab784e6d3546992d20dd689053590_JaffaCakes118.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\Control Panel\International\Geo\Nation	qprocess.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\Control Panel\International\Geo\Nation	qprocess.exe

Executes dropped EXE 3 IoCs

pid	Process
3452	qprocess.exe
3024	qprocess.exe
1384	qprocess.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	RegAsm.exe

AutoIT Executable 2 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral2/files/0x000700000002345c-15.dat	autoit_exe
behavioral2/files/0x000700000002345c-30.dat	autoit_exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 4208 set thread context of 4796	4208	a11ab784e6d3546992d20dd689053590_JaffaCakes118.exe	94
PID 3452 set thread context of 5044	3452	qprocess.exe	101
PID 3024 set thread context of 4556	3024	qprocess.exe	114

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 10 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a11ab784e6d3546992d20dd689053590_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	qprocess.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	qprocess.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	qprocess.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 3 IoCs

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

persistence execution

Scheduled Task

T1053.005

pid	Process
3520	schtasks.exe
4372	schtasks.exe
1420	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
4796	RegAsm.exe
4796	RegAsm.exe
4796	RegAsm.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4796	RegAsm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4796	RegAsm.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 4208 wrote to memory of 4796	4208	a11ab784e6d3546992d20dd689053590_JaffaCakes118.exe	94
PID 4208 wrote to memory of 4796	4208	a11ab784e6d3546992d20dd689053590_JaffaCakes118.exe	94
PID 4208 wrote to memory of 4796	4208	a11ab784e6d3546992d20dd689053590_JaffaCakes118.exe	94
PID 4208 wrote to memory of 4796	4208	a11ab784e6d3546992d20dd689053590_JaffaCakes118.exe	94
PID 4208 wrote to memory of 4796	4208	a11ab784e6d3546992d20dd689053590_JaffaCakes118.exe	94
PID 4208 wrote to memory of 3520	4208	a11ab784e6d3546992d20dd689053590_JaffaCakes118.exe	95
PID 4208 wrote to memory of 3520	4208	a11ab784e6d3546992d20dd689053590_JaffaCakes118.exe	95
PID 4208 wrote to memory of 3520	4208	a11ab784e6d3546992d20dd689053590_JaffaCakes118.exe	95
PID 3452 wrote to memory of 5044	3452	qprocess.exe	101
PID 3452 wrote to memory of 5044	3452	qprocess.exe	101
PID 3452 wrote to memory of 5044	3452	qprocess.exe	101
PID 3452 wrote to memory of 5044	3452	qprocess.exe	101
PID 3452 wrote to memory of 5044	3452	qprocess.exe	101
PID 3452 wrote to memory of 4372	3452	qprocess.exe	102
PID 3452 wrote to memory of 4372	3452	qprocess.exe	102
PID 3452 wrote to memory of 4372	3452	qprocess.exe	102
PID 3024 wrote to memory of 4556	3024	qprocess.exe	114
PID 3024 wrote to memory of 4556	3024	qprocess.exe	114
PID 3024 wrote to memory of 4556	3024	qprocess.exe	114
PID 3024 wrote to memory of 4556	3024	qprocess.exe	114
PID 3024 wrote to memory of 4556	3024	qprocess.exe	114
PID 3024 wrote to memory of 1420	3024	qprocess.exe	115
PID 3024 wrote to memory of 1420	3024	qprocess.exe	115
PID 3024 wrote to memory of 1420	3024	qprocess.exe	115

C:\Users\Admin\AppData\Local\Temp\a11ab784e6d3546992d20dd689053590_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\a11ab784e6d3546992d20dd689053590_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4208
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
  2⤵
  - Checks whether UAC is enabled
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  PID:4796
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\SysWOW64\schtasks.exe" /create /tn WUDFHost /tr "C:\Users\Admin\AuthHostProxy\qprocess.exe" /sc minute /mo 1 /F
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:3520

C:\Users\Admin\AuthHostProxy\qprocess.exe
C:\Users\Admin\AuthHostProxy\qprocess.exe
1⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3452
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:5044
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\SysWOW64\schtasks.exe" /create /tn WUDFHost /tr "C:\Users\Admin\AuthHostProxy\qprocess.exe" /sc minute /mo 1 /F
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:4372

C:\Users\Admin\AuthHostProxy\qprocess.exe
C:\Users\Admin\AuthHostProxy\qprocess.exe
1⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3024
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4556
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\SysWOW64\schtasks.exe" /create /tn WUDFHost /tr "C:\Users\Admin\AuthHostProxy\qprocess.exe" /sc minute /mo 1 /F
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:1420

C:\Users\Admin\AuthHostProxy\qprocess.exe
C:\Users\Admin\AuthHostProxy\qprocess.exe
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:1384

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

RegAsm.exe.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\RegAsm.exe.log
Size 496B
SHA256 e248cef9500ed6e0c9f99d72a2a6a36955a5f0cfc0725748ef25a733cc8282f6
MD5 5b4789d01bb4d7483b71e1a35bce6a8b
SHA1 de083f2131c9a763c0d1810c97a38732146cffbf
SHA512 357e18ef30430e4b9cc4f2569b9735b1cd12f934c83162e4de78ac29ba9703b63ddb624ccc22afd5a5868f6e9d91a3c64581846abac22e9625f5b2e3d80b3ede
MD5 SHA1 SHA512

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qprocess.exe

Path C:\Users\Admin\AuthHostProxy\qprocess.exe
Size 1.3MB
SHA256 4e7cc3ed571bf2a69118d8c3359082a2263b595cae6b77d71a94e5948a17bfbb
MD5 63220e959c0d447bba5d9da1f4dba7a2
SHA1 dacf16409354a1f442c6fdfcf5a4d2af2889f306
SHA512 8ad1cd392de2a5e44b1021d76a2a50c320f52d39d2efaea7c9fed17e0d21680eb389e91e7b6ff297db24280076b94c921341681474fe624e6df4fb2727ff0b71
SSDEEP 24576:3u6J33O0c+JY5UZ+XC0kGso6FaUngm/MmiTv5WYP:Ru0c++OCvkGs9FaoiTMYP
MD5 SHA1 SHA512 SSDEEP

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qprocess.exe

Path C:\Users\Admin\AuthHostProxy\qprocess.exe
Size 1.1MB
SHA256 f29d901b3eb3a3fc6c14c2ca415f8df40ee045aa9c0467bd1a1b292b71bc3caf
MD5 da092ba5ddd4887e298db67dc42c7f95
SHA1 043489366dba7f073f2e75746f653c86f2e886b4
SHA512 ba74f317b1d8676d3da54c3f610a602853b89e3fe46b0d4c66a776f8af5a869947eb8d81297b48c45d1f3d3e4121d2b2763bcebef820c11bdb05b5b6b2cd82b9
SSDEEP 12288:3u6JWgXT7rKfXNeKgOIc0nAWY/ySWHDVz/Vovh7V1C0NnCGso9fgBDYgaUnaRiYo:3u6J33O0c+JY5UZ+XC0kGso6FaUngmz
MD5 SHA1 SHA512 SSDEEP

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memory/4208-0-0x0000000001220000-0x0000000001221000-memory.dmp

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memory/4556-24-0x00000000003B0000-0x00000000003E8000-memory.dmp

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memory/4796-11-0x0000000073FA0000-0x0000000074551000-memory.dmp

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memory/4796-10-0x0000000073FA2000-0x0000000073FA3000-memory.dmp

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memory/4796-12-0x0000000073FA0000-0x0000000074551000-memory.dmp

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memory/4796-8-0x0000000073FA0000-0x0000000074551000-memory.dmp

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memory/4796-7-0x0000000073FA0000-0x0000000074551000-memory.dmp

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memory/4796-6-0x0000000073FA2000-0x0000000073FA3000-memory.dmp

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memory/4796-2-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/5044-18-0x0000000000600000-0x0000000000638000-memory.dmp

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