nanocore | addf69e7675bb4111997e21630447883474f34e0faf50215b7ac45595a042300

Analysis

max time kernel
149s
max time network
152s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
16/05/2023, 12:41

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General

Target

sample.exe
Size

2.1MB
MD5

ae177e42c4c6e273cb4219fff5e94981
SHA1

9b4c628e9aa7a81ada28dd4ba2490cef3a5ccede
SHA256

562fc3234e53c14974bd59e5008f264438e67849ddaf11f06c4687fdd2da5311
SHA512

b34261b51110f1b055fe6cd283d51620fc1c0d0cd25c87587cc434ea04074aa0ed1ad43f270383453b76b69db3cbf5708a21cf10948f874123d5fef09348ceba
SSDEEP

24576:LE1qXbolTK38T67YCE3DY1oNowiK33tQPtY6Zqx8dYkRQ53Ula4mJ8ZQI+QSD11a:LEMoVl3zWwx0qxnkRGcQI+1ZvWH

Score

10^/10

nanocore evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

syoll.duckdns.org:1604

Mutex

91a498dd-ff55-4709-b992-a5ee7715c9a2

Attributes

activate_away_mode
false
backup_connection_host
syoll.duckdns.org
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2020-03-14T21:41:26.733185836Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
false
clear_zone_identifier
false
connect_delay
4000
connection_port
1604
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
91a498dd-ff55-4709-b992-a5ee7715c9a2
mutex_timeout
4985
prevent_system_sleep
false
primary_connection_host
syoll.duckdns.org
primary_dns_server
8.8.8.8
request_elevation
false
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

UAC bypass 3 TTPs 1 IoCs

evasion trojan

Bypass User Account Control

T1088

Disabling Security Tools

T1089

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	XVlBzgbaiC.exe

Disables RegEdit via registry modification 1 IoCs

evasion

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1283023626-844874658-3193756055-1000\Software\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1"	XVlBzgbaiC.exe

Executes dropped EXE 3 IoCs

pid	Process
2020	XVlBzgbaiC.exe
1976	XVlBzgbaiC.exe
1052	core.exe

Loads dropped DLL 5 IoCs

pid	Process
1060	sample.exe
1060	sample.exe
2020	XVlBzgbaiC.exe
2020	XVlBzgbaiC.exe
2020	XVlBzgbaiC.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\IMAP Service = "C:\\Program Files (x86)\\IMAP Service\\imapsvc.exe"	XVlBzgbaiC.exe

Checks whether UAC is enabled 1 TTPs 3 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	XVlBzgbaiC.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	XVlBzgbaiC.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	XVlBzgbaiC.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2020 set thread context of 1976	2020	XVlBzgbaiC.exe	30

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\IMAP Service\imapsvc.exe	XVlBzgbaiC.exe
File opened for modification	C:\Program Files (x86)\IMAP Service\imapsvc.exe	XVlBzgbaiC.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2020	XVlBzgbaiC.exe
2020	XVlBzgbaiC.exe
1052	core.exe
1976	XVlBzgbaiC.exe
1976	XVlBzgbaiC.exe
1976	XVlBzgbaiC.exe
1052	core.exe
1052	core.exe
1052	core.exe
1052	core.exe
1052	core.exe
1052	core.exe
1052	core.exe
1052	core.exe
1052	core.exe
1052	core.exe
1052	core.exe
1052	core.exe
1052	core.exe
1052	core.exe
1052	core.exe
1052	core.exe
1052	core.exe
1052	core.exe
1052	core.exe
1052	core.exe
1052	core.exe
1052	core.exe
1052	core.exe
1052	core.exe
1052	core.exe
1052	core.exe
1052	core.exe
1052	core.exe
1052	core.exe
1052	core.exe
1052	core.exe
1052	core.exe
1052	core.exe
1052	core.exe
1052	core.exe
1052	core.exe
1052	core.exe
1052	core.exe
1052	core.exe
1052	core.exe
1052	core.exe
1052	core.exe
1052	core.exe
1052	core.exe
1052	core.exe
1052	core.exe
1052	core.exe
1052	core.exe
1052	core.exe
1052	core.exe
1052	core.exe
1052	core.exe
1052	core.exe
1052	core.exe
1052	core.exe
1052	core.exe
1052	core.exe
1052	core.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1976	XVlBzgbaiC.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2020	XVlBzgbaiC.exe
Token: SeDebugPrivilege	1052	core.exe
Token: SeDebugPrivilege	1976	XVlBzgbaiC.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 1060 wrote to memory of 2020	1060	sample.exe	28
PID 1060 wrote to memory of 2020	1060	sample.exe	28
PID 1060 wrote to memory of 2020	1060	sample.exe	28
PID 1060 wrote to memory of 2020	1060	sample.exe	28
PID 2020 wrote to memory of 1976	2020	XVlBzgbaiC.exe	30
PID 2020 wrote to memory of 1976	2020	XVlBzgbaiC.exe	30
PID 2020 wrote to memory of 1976	2020	XVlBzgbaiC.exe	30
PID 2020 wrote to memory of 1976	2020	XVlBzgbaiC.exe	30
PID 2020 wrote to memory of 1976	2020	XVlBzgbaiC.exe	30
PID 2020 wrote to memory of 1976	2020	XVlBzgbaiC.exe	30
PID 2020 wrote to memory of 1976	2020	XVlBzgbaiC.exe	30
PID 2020 wrote to memory of 1976	2020	XVlBzgbaiC.exe	30
PID 2020 wrote to memory of 1976	2020	XVlBzgbaiC.exe	30
PID 2020 wrote to memory of 1052	2020	XVlBzgbaiC.exe	31
PID 2020 wrote to memory of 1052	2020	XVlBzgbaiC.exe	31
PID 2020 wrote to memory of 1052	2020	XVlBzgbaiC.exe	31
PID 2020 wrote to memory of 1052	2020	XVlBzgbaiC.exe	31

System policy modification 1 TTPs 1 IoCs

evasion

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	XVlBzgbaiC.exe

C:\Users\Admin\AppData\Local\Temp\sample.exe
"C:\Users\Admin\AppData\Local\Temp\sample.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1060
- C:\Users\Admin\AppData\Local\Temp\XVlBzgbaiC.exe
  C:\Users\Admin\AppData\Local\Temp\XVlBzgbaiC.exe
  2⤵
  - UAC bypass
  - Disables RegEdit via registry modification
  - Executes dropped EXE
  - Loads dropped DLL
  - Checks whether UAC is enabled
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  - System policy modification
  PID:2020
- - C:\Users\Admin\AppData\Local\Temp\XVlBzgbaiC.exe
    "C:\Users\Admin\AppData\Local\Temp\XVlBzgbaiC.exe"
    3⤵
    - Executes dropped EXE
    - 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
    PID:1976
- - C:\Users\Admin\AppData\Local\Temp\core.exe
    "C:\Users\Admin\AppData\Local\Temp\core.exe" -woohoo 1976 C:\Users\Admin\AppData\Local\Temp\XVlBzgbaiC.exe
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1052

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Bypass User Account Control

T1088

Defense Evasion

Bypass User Account Control

T1088

Disabling Security Tools

T1089

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\XVlBzgbaiC.exe

Filesize
414KB

MD5
86ad55d4fc8cbbb78d3f71b9784fffc2

SHA1
3f30d552413241e42626aa9372a2bfd9a016e375

SHA256
87ea5a682d91c46a58146860d95bb4d704d684324530244c574be21b3981fd7a

SHA512
fe4a1599a9b0b9d78a9fadfbce50ab5f8dbc6b5b6199e02bde119af859b63580e6b7f7a7df72692c7d5acee8a2646b9cc57dd64b6be19736e0dbb60433fe3af2

Download Submit
C:\Users\Admin\AppData\Local\Temp\XVlBzgbaiC.exe

Filesize
414KB

MD5
86ad55d4fc8cbbb78d3f71b9784fffc2

SHA1
3f30d552413241e42626aa9372a2bfd9a016e375

SHA256
87ea5a682d91c46a58146860d95bb4d704d684324530244c574be21b3981fd7a

SHA512
fe4a1599a9b0b9d78a9fadfbce50ab5f8dbc6b5b6199e02bde119af859b63580e6b7f7a7df72692c7d5acee8a2646b9cc57dd64b6be19736e0dbb60433fe3af2

Download Submit
C:\Users\Admin\AppData\Local\Temp\XVlBzgbaiC.exe

Filesize
414KB

MD5
86ad55d4fc8cbbb78d3f71b9784fffc2

SHA1
3f30d552413241e42626aa9372a2bfd9a016e375

SHA256
87ea5a682d91c46a58146860d95bb4d704d684324530244c574be21b3981fd7a

SHA512
fe4a1599a9b0b9d78a9fadfbce50ab5f8dbc6b5b6199e02bde119af859b63580e6b7f7a7df72692c7d5acee8a2646b9cc57dd64b6be19736e0dbb60433fe3af2

Download Submit
C:\Users\Admin\AppData\Local\Temp\XVlBzgbaiC.exe

Filesize
414KB

MD5
86ad55d4fc8cbbb78d3f71b9784fffc2

SHA1
3f30d552413241e42626aa9372a2bfd9a016e375

SHA256
87ea5a682d91c46a58146860d95bb4d704d684324530244c574be21b3981fd7a

SHA512
fe4a1599a9b0b9d78a9fadfbce50ab5f8dbc6b5b6199e02bde119af859b63580e6b7f7a7df72692c7d5acee8a2646b9cc57dd64b6be19736e0dbb60433fe3af2

Download Submit
C:\Users\Admin\AppData\Local\Temp\core.exe

Filesize
414KB

MD5
86ad55d4fc8cbbb78d3f71b9784fffc2

SHA1
3f30d552413241e42626aa9372a2bfd9a016e375

SHA256
87ea5a682d91c46a58146860d95bb4d704d684324530244c574be21b3981fd7a

SHA512
fe4a1599a9b0b9d78a9fadfbce50ab5f8dbc6b5b6199e02bde119af859b63580e6b7f7a7df72692c7d5acee8a2646b9cc57dd64b6be19736e0dbb60433fe3af2

Download Submit
C:\Users\Admin\AppData\Local\Temp\core.exe

Filesize
414KB

MD5
86ad55d4fc8cbbb78d3f71b9784fffc2

SHA1
3f30d552413241e42626aa9372a2bfd9a016e375

SHA256
87ea5a682d91c46a58146860d95bb4d704d684324530244c574be21b3981fd7a

SHA512
fe4a1599a9b0b9d78a9fadfbce50ab5f8dbc6b5b6199e02bde119af859b63580e6b7f7a7df72692c7d5acee8a2646b9cc57dd64b6be19736e0dbb60433fe3af2

Download Submit
\Users\Admin\AppData\Local\Temp\XVlBzgbaiC.exe

Filesize
414KB

MD5
86ad55d4fc8cbbb78d3f71b9784fffc2

SHA1
3f30d552413241e42626aa9372a2bfd9a016e375

SHA256
87ea5a682d91c46a58146860d95bb4d704d684324530244c574be21b3981fd7a

SHA512
fe4a1599a9b0b9d78a9fadfbce50ab5f8dbc6b5b6199e02bde119af859b63580e6b7f7a7df72692c7d5acee8a2646b9cc57dd64b6be19736e0dbb60433fe3af2

Download Submit
\Users\Admin\AppData\Local\Temp\XVlBzgbaiC.exe

Filesize
414KB

MD5
86ad55d4fc8cbbb78d3f71b9784fffc2

SHA1
3f30d552413241e42626aa9372a2bfd9a016e375

SHA256
87ea5a682d91c46a58146860d95bb4d704d684324530244c574be21b3981fd7a

SHA512
fe4a1599a9b0b9d78a9fadfbce50ab5f8dbc6b5b6199e02bde119af859b63580e6b7f7a7df72692c7d5acee8a2646b9cc57dd64b6be19736e0dbb60433fe3af2

Download Submit
\Users\Admin\AppData\Local\Temp\XVlBzgbaiC.exe

Filesize
414KB

MD5
86ad55d4fc8cbbb78d3f71b9784fffc2

SHA1
3f30d552413241e42626aa9372a2bfd9a016e375

SHA256
87ea5a682d91c46a58146860d95bb4d704d684324530244c574be21b3981fd7a

SHA512
fe4a1599a9b0b9d78a9fadfbce50ab5f8dbc6b5b6199e02bde119af859b63580e6b7f7a7df72692c7d5acee8a2646b9cc57dd64b6be19736e0dbb60433fe3af2

Download Submit
\Users\Admin\AppData\Local\Temp\core.exe

Filesize
414KB

MD5
86ad55d4fc8cbbb78d3f71b9784fffc2

SHA1
3f30d552413241e42626aa9372a2bfd9a016e375

SHA256
87ea5a682d91c46a58146860d95bb4d704d684324530244c574be21b3981fd7a

SHA512
fe4a1599a9b0b9d78a9fadfbce50ab5f8dbc6b5b6199e02bde119af859b63580e6b7f7a7df72692c7d5acee8a2646b9cc57dd64b6be19736e0dbb60433fe3af2

Download Submit
\Users\Admin\AppData\Local\Temp\core.exe

Filesize
414KB

MD5
86ad55d4fc8cbbb78d3f71b9784fffc2

SHA1
3f30d552413241e42626aa9372a2bfd9a016e375

SHA256
87ea5a682d91c46a58146860d95bb4d704d684324530244c574be21b3981fd7a

SHA512
fe4a1599a9b0b9d78a9fadfbce50ab5f8dbc6b5b6199e02bde119af859b63580e6b7f7a7df72692c7d5acee8a2646b9cc57dd64b6be19736e0dbb60433fe3af2

Download Submit
memory/1052-92-0x0000000000730000-0x0000000000770000-memory.dmp

Filesize
256KB

Download
memory/1052-93-0x0000000000730000-0x0000000000770000-memory.dmp

Filesize
256KB

Download
memory/1052-95-0x0000000000730000-0x0000000000770000-memory.dmp

Filesize
256KB

Download
memory/1976-72-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1976-78-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1976-79-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1976-73-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1976-70-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1976-68-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1976-67-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1976-88-0x00000000009C0000-0x0000000000A00000-memory.dmp

Filesize
256KB

Download
memory/1976-66-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1976-94-0x00000000009C0000-0x0000000000A00000-memory.dmp

Filesize
256KB

Download
memory/2020-64-0x0000000000AF0000-0x0000000000B30000-memory.dmp

Filesize
256KB

Download
memory/2020-63-0x0000000000AF0000-0x0000000000B30000-memory.dmp

Filesize
256KB

Download