nanocore | 6e246fe3f0b1f37ab0732885249bd7d2b4a58d502d7d4ffe55720e3a903286d9

Analysis

max time kernel
149s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
17-10-2022 14:42

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General

Target

6fc3c0f8ac80e213b214721c63ccf070.exe
Size

1.2MB
MD5

6fc3c0f8ac80e213b214721c63ccf070
SHA1

675f3134cbb346c7b6bb24245de72428e3288947
SHA256

6e246fe3f0b1f37ab0732885249bd7d2b4a58d502d7d4ffe55720e3a903286d9
SHA512

176da6fb8e29a8db4340178315c3b38885cc71cad8f9c653db0136fffa16651003e4c76127de81d834d83bc28964a3c8da247a66ca8bd2d6835630e92bc5be91
SSDEEP

24576:0AOcZ2i7xba+E6Y7CUKbFiFn0W5faNnCLUEVYfA3zEqoGrYfC:iKba+t7b0Fn0W5faNrEVYfIzEdGE6

Score

10^/10

nanocore evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

lowaspeed.ddnsfree.com:48562

411speed.duckdns.org:48562

Mutex

042723c4-0804-4212-bf56-4b1b2669ca7c

Attributes

activate_away_mode
false
backup_connection_host
411speed.duckdns.org
backup_dns_server
buffer_size
65538
build_time
2022-07-02T05:32:06.440076436Z
bypass_user_account_control
false
bypass_user_account_control_data
PD94bWwgdmVyc2lvbj0iMS4wIiBlbmNvZGluZz0iVVRGLTE2Ij8+DQo8VGFzayB2ZXJzaW9uPSIxLjIiIHhtbG5zPSJodHRwOi8vc2NoZW1hcy5taWNyb3NvZnQuY29tL3dpbmRvd3MvMjAwNC8wMi9taXQvdGFzayI+DQogIDxSZWdpc3RyYXRpb25JbmZvIC8+DQogIDxUcmlnZ2VycyAvPg0KICA8UHJpbmNpcGFscz4NCiAgICA8UHJpbmNpcGFsIGlkPSJBdXRob3IiPg0KICAgICAgPExvZ29uVHlwZT5JbnRlcmFjdGl2ZVRva2VuPC9Mb2dvblR5cGU+DQogICAgICA8UnVuTGV2ZWw+SGlnaGVzdEF2YWlsYWJsZTwvUnVuTGV2ZWw+DQogICAgPC9QcmluY2lwYWw+DQogIDwvUHJpbmNpcGFscz4NCiAgPFNldHRpbmdzPg0KICAgIDxNdWx0aXBsZUluc3RhbmNlc1BvbGljeT5QYXJhbGxlbDwvTXVsdGlwbGVJbnN0YW5jZXNQb2xpY3k+DQogICAgPERpc2FsbG93U3RhcnRJZk9uQmF0dGVyaWVzPmZhbHNlPC9EaXNhbGxvd1N0YXJ0SWZPbkJhdHRlcmllcz4NCiAgICA8U3RvcElmR29pbmdPbkJhdHRlcmllcz5mYWxzZTwvU3RvcElmR29pbmdPbkJhdHRlcmllcz4NCiAgICA8QWxsb3dIYXJkVGVybWluYXRlPnRydWU8L0FsbG93SGFyZFRlcm1pbmF0ZT4NCiAgICA8U3RhcnRXaGVuQXZhaWxhYmxlPmZhbHNlPC9TdGFydFdoZW5BdmFpbGFibGU+DQogICAgPFJ1bk9ubHlJZk5ldHdvcmtBdmFpbGFibGU+ZmFsc2U8L1J1bk9ubHlJZk5ldHdvcmtBdmFpbGFibGU+DQogICAgPElkbGVTZXR0aW5ncz4NCiAgICAgIDxTdG9wT25JZGxlRW5kPmZhbHNlPC9TdG9wT25JZGxlRW5kPg0KICAgICAgPFJlc3RhcnRPbklkbGU+ZmFsc2U8L1Jlc3RhcnRPbklkbGU+DQogICAgPC9JZGxlU2V0dGluZ3M+DQogICAgPEFsbG93U3RhcnRPbkRlbWFuZD50cnVlPC9BbGxvd1N0YXJ0T25EZW1hbmQ+DQogICAgPEVuYWJsZWQ+dHJ1ZTwvRW5hYmxlZD4NCiAgICA8SGlkZGVuPmZhbHNlPC9IaWRkZW4+DQogICAgPFJ1bk9ubHlJZklkbGU+ZmFsc2U8L1J1bk9ubHlJZklkbGU+DQogICAgPFdha2VUb1J1bj5mYWxzZTwvV2FrZVRvUnVuPg0KICAgIDxFeGVjdXRpb25UaW1lTGltaXQ+UFQwUzwvRXhlY3V0aW9uVGltZUxpbWl0Pg0KICAgIDxQcmlvcml0eT40PC9Qcmlvcml0eT4NCiAgPC9TZXR0aW5ncz4NCiAgPEFjdGlvbnMgQ29udGV4dD0iQXV0aG9yIj4NCiAgICA8RXhlYz4NCiAgICAgIDxDb21tYW5kPiIjRVhFQ1VUQUJMRVBBVEgiPC9Db21tYW5kPg0KICAgICAgPEFyZ3VtZW50cz4kKEFyZzApPC9Bcmd1bWVudHM+DQogICAgPC9FeGVjPg0KICA8L0FjdGlvbnM+DQo8L1Rhc2s+
clear_access_control
false
clear_zone_identifier
false
connect_delay
4000
connection_port
48562
default_group
Clowns
enable_debug_mode
true
gc_threshold
1.0485772e+07
keep_alive_timeout
30000
keyboard_logging
false
lan_timeout
2500
max_packet_size
1.0485772e+07
mutex
042723c4-0804-4212-bf56-4b1b2669ca7c
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
lowaspeed.ddnsfree.com
primary_dns_server
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
8009

Signatures

NanoCore
NanoCore is a remote access tool (RAT) with a variety of capabilities.
keylogger trojan stealer spyware nanocore
Executes dropped EXE 2 IoCs

Processes:

tixkbagfs.exeRegSvcs.exe

pid process

1688 tixkbagfs.exe
3528 RegSvcs.exe

pid	process
1688	tixkbagfs.exe
3528	RegSvcs.exe

Checks computer location settings 2 TTPs 2 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

Processes:

6fc3c0f8ac80e213b214721c63ccf070.exeWScript.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation	6fc3c0f8ac80e213b214721c63ccf070.exe
Key value queried	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation	WScript.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

tixkbagfs.exeRegSvcs.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\AutoUpdate = "0\\10_14\\Update.vbs"	tixkbagfs.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\DHCP Subsystem = "C:\\Program Files (x86)\\DHCP Subsystem\\dhcpss.exe"	RegSvcs.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run	tixkbagfs.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Chrome = "0\\10_14\\tixkbagfs.exe 0\\10_14\\ffxans.awe"	tixkbagfs.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

RegSvcs.exe

description ioc process

Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA RegSvcs.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

tixkbagfs.exe

description pid process target process

PID 1688 set thread context of 3528 1688 tixkbagfs.exe RegSvcs.exe

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

description	pid	process	target process
PID 1688 set thread context of 3528	1688	tixkbagfs.exe	RegSvcs.exe

Drops file in Program Files directory 2 IoCs

Processes:

RegSvcs.exe

description	ioc	process
File created	C:\Program Files (x86)\DHCP Subsystem\dhcpss.exe	RegSvcs.exe
File opened for modification	C:\Program Files (x86)\DHCP Subsystem\dhcpss.exe	RegSvcs.exe

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

System Information Discovery
T1082
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

Processes:

schtasks.exeschtasks.exe

pid process

3496 schtasks.exe
372 schtasks.exe

pid	process
3496	schtasks.exe
372	schtasks.exe

Modifies registry class 2 IoCs

Processes:

6fc3c0f8ac80e213b214721c63ccf070.exeWScript.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings	6fc3c0f8ac80e213b214721c63ccf070.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	WScript.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

Processes:

RegSvcs.exe

pid process

3528 RegSvcs.exe
3528 RegSvcs.exe
3528 RegSvcs.exe
3528 RegSvcs.exe
3528 RegSvcs.exe
3528 RegSvcs.exe
3528 RegSvcs.exe
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

RegSvcs.exe

pid process

3528 RegSvcs.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

RegSvcs.exe

description pid process

Token: SeDebugPrivilege 3528 RegSvcs.exe

pid	process
3528	RegSvcs.exe
3528	RegSvcs.exe
3528	RegSvcs.exe
3528	RegSvcs.exe
3528	RegSvcs.exe
3528	RegSvcs.exe
3528	RegSvcs.exe

pid	process
3528	RegSvcs.exe

description	pid	process
Token: SeDebugPrivilege	3528	RegSvcs.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

6fc3c0f8ac80e213b214721c63ccf070.exeWScript.exetixkbagfs.exeRegSvcs.exe

description	pid	process	target process
PID 1208 wrote to memory of 3212	1208	6fc3c0f8ac80e213b214721c63ccf070.exe	WScript.exe
PID 1208 wrote to memory of 3212	1208	6fc3c0f8ac80e213b214721c63ccf070.exe	WScript.exe
PID 1208 wrote to memory of 3212	1208	6fc3c0f8ac80e213b214721c63ccf070.exe	WScript.exe
PID 3212 wrote to memory of 1688	3212	WScript.exe	tixkbagfs.exe
PID 3212 wrote to memory of 1688	3212	WScript.exe	tixkbagfs.exe
PID 3212 wrote to memory of 1688	3212	WScript.exe	tixkbagfs.exe
PID 1688 wrote to memory of 3528	1688	tixkbagfs.exe	RegSvcs.exe
PID 1688 wrote to memory of 3528	1688	tixkbagfs.exe	RegSvcs.exe
PID 1688 wrote to memory of 3528	1688	tixkbagfs.exe	RegSvcs.exe
PID 1688 wrote to memory of 3528	1688	tixkbagfs.exe	RegSvcs.exe
PID 1688 wrote to memory of 3528	1688	tixkbagfs.exe	RegSvcs.exe
PID 3528 wrote to memory of 3496	3528	RegSvcs.exe	schtasks.exe
PID 3528 wrote to memory of 3496	3528	RegSvcs.exe	schtasks.exe
PID 3528 wrote to memory of 3496	3528	RegSvcs.exe	schtasks.exe
PID 3528 wrote to memory of 372	3528	RegSvcs.exe	schtasks.exe
PID 3528 wrote to memory of 372	3528	RegSvcs.exe	schtasks.exe
PID 3528 wrote to memory of 372	3528	RegSvcs.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\6fc3c0f8ac80e213b214721c63ccf070.exe
"C:\Users\Admin\AppData\Local\Temp\6fc3c0f8ac80e213b214721c63ccf070.exe"
1⤵
- Checks computer location settings
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1208

C:\Windows\SysWOW64\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\temp\10_14\phhqlxhjg.vbe"
2⤵
- Checks computer location settings
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:3212

C:\Users\Admin\AppData\Local\Temp\10_14\tixkbagfs.exe
"C:\Users\Admin\AppData\Local\Temp\10_14\tixkbagfs.exe" ffxans.awe
3⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1688

C:\Users\Admin\AppData\Local\Temp\RegSvcs.exe
"C:\Users\Admin\AppData\Local\Temp\RegSvcs.exe"
4⤵
- 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
- Suspicious use of WriteProcessMemory
PID:3528

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "DHCP Subsystem" /xml "C:\Users\Admin\AppData\Local\Temp\tmpEC49.tmp"
5⤵
- Creates scheduled task(s)
PID:3496

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "DHCP Subsystem Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpEFA5.tmp"
5⤵
- Creates scheduled task(s)
PID:372

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

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\10_14\ffxans.awe

Filesize
134.1MB

MD5
0e1dd5ebf82ad7f5aadd656297c66c95

SHA1
40b9810bc46f0138fc57af11eb6c573a1eb829c1

SHA256
732fcb29f21b28c7cfb25ee995c81b3ca2f8c571c1d881855c8f837da904587e

SHA512
77165905782d6e5d2d24d3d6c17c48c5a95c892f8f3e51dcff3f02ae4c7eec662abc6e0d783a27f5f0e5550dcec583b1d0b537a6b1f35d37d3af27caec2ef0eb

Download Submit
C:\Users\Admin\AppData\Local\Temp\10_14\obde.jfo

Filesize
420KB

MD5
426086a7a8dae7bbc25d188d980fcf32

SHA1
1a2c15ac9b473d827f72b08a12268c293dd0103a

SHA256
d03f0db62329f0ef248e25f1ff64a4e8999d0513fb5b77cc05b2497e9cf94f08

SHA512
c1d9bad7566d4af52d03603dffe9d5e6dcb5a1d88d474c9fe7c475b61d718421cf0d6f128624341205b53793e6818a38436e4518e0903a3a4a4dd23bc28d3f51

Download Submit
C:\Users\Admin\AppData\Local\Temp\10_14\tixkbagfs.exe

Filesize
1.1MB

MD5
36f2cc80742b6e66a7cf997fd3b5b20b

SHA1
05947cdd2a59f0158516fd1705295b214f2dd065

SHA256
823b39d3b111ea4483d94d693768c49cbc7533c441483f75e5fcfdb223db8b1f

SHA512
457be34f92af93fce11bf0bed23642ab976008bf93e3fb47bc837ff5268a82f701406c6853e13127010c3ea502454c7711d22bc36db5e2e3fe20d22ca9e722bd

Download Submit
C:\Users\Admin\AppData\Local\Temp\10_14\tixkbagfs.exe

Filesize
1.1MB

MD5
36f2cc80742b6e66a7cf997fd3b5b20b

SHA1
05947cdd2a59f0158516fd1705295b214f2dd065

SHA256
823b39d3b111ea4483d94d693768c49cbc7533c441483f75e5fcfdb223db8b1f

SHA512
457be34f92af93fce11bf0bed23642ab976008bf93e3fb47bc837ff5268a82f701406c6853e13127010c3ea502454c7711d22bc36db5e2e3fe20d22ca9e722bd

Download Submit
C:\Users\Admin\AppData\Local\Temp\10_14\vhjomw.jpg

Filesize
49KB

MD5
5d769e7929d1758434c28d8f8cf5690f

SHA1
743d8c4bae1915057a70c4896f3b7c68ae251e8e

SHA256
435a778c035e8d007ed02dad54ddb2ac4a9445fd18b4fc3713d4acd0cf254233

SHA512
51aa7258d912f52e59308e229261d71ffda0c25fe8239932fdb9ec314a4eaec503e73635c7132c6e888736d8c3ef0eb956115b5b6ff8b881c017a0742ce38182

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

Filesize
44KB

MD5
9d352bc46709f0cb5ec974633a0c3c94

SHA1
1969771b2f022f9a86d77ac4d4d239becdf08d07

SHA256
2c1eeb7097023c784c2bd040a2005a5070ed6f3a4abf13929377a9e39fab1390

SHA512
13c714244ec56beeb202279e4109d59c2a43c3cf29f90a374a751c04fd472b45228ca5a0178f41109ed863dbd34e0879e4a21f5e38ae3d89559c57e6be990a9b

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

Filesize
44KB

MD5
9d352bc46709f0cb5ec974633a0c3c94

SHA1
1969771b2f022f9a86d77ac4d4d239becdf08d07

SHA256
2c1eeb7097023c784c2bd040a2005a5070ed6f3a4abf13929377a9e39fab1390

SHA512
13c714244ec56beeb202279e4109d59c2a43c3cf29f90a374a751c04fd472b45228ca5a0178f41109ed863dbd34e0879e4a21f5e38ae3d89559c57e6be990a9b

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpEC49.tmp

Filesize
1KB

MD5
95aceabc58acad5d73372b0966ee1b35

SHA1
2293b7ad4793cf574b1a5220e85f329b5601040a

SHA256
8d9642e1c3cd1e0b5d1763de2fb5e605ba593e5a918b93eec15acbc5dcc48fd4

SHA512
00760dfc9d8caf357f0cee5336e5448a4cca18e32cc63e1a69c16e34fe00ea29acd5b2cf278e86c6f9c3e66a1b176d27ed927361848212e6bf1fade7d3d06e74

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpEFA5.tmp

Filesize
1KB

MD5
2f26d92c1eeead3896820e56ec46f6f1

SHA1
d95533b61eed7d89e4ada56bc566d60e42ac1f61

SHA256
99a158463ce40c750bad6991ae1fceece305a0dbf8e209dd7147b5d539756bfa

SHA512
6c1ed12d5e1afcd9e7f327e0153786fd8594f75a995f341c408ef014e69917452a9fe99c511f0249aceb57b3045b707f1fd3f404e4086cfbf0aadcb3318db892

Download Submit
C:\Users\Admin\AppData\Local\temp\10_14\phhqlxhjg.vbe

Filesize
30KB

MD5
06c087670d6dcad3e9bde3fbd7e7cf45

SHA1
3f472622b7bd1374f30c0507e7ed9d04cb4831be

SHA256
e3489f379919aa1c1356d664513c83dc268a620408c13d3b9677627cced97d01

SHA512
9575819043bbbfdb9c546599dbd019aad5f35bb8519b058e371324b2f8932c5e49a38e8416e54cbd6cd6df4ac6871d44429f70a50f5a03ba97923989612d1508

Download Submit
memory/372-151-0x0000000000000000-mapping.dmp

Download
memory/1688-135-0x0000000000000000-mapping.dmp

Download
memory/3212-132-0x0000000000000000-mapping.dmp

Download
memory/3496-149-0x0000000000000000-mapping.dmp

Download
memory/3528-144-0x0000000001140000-0x000000000117A000-memory.dmp

Filesize
232KB

Download
memory/3528-147-0x0000000005E80000-0x0000000005F1C000-memory.dmp

Filesize
624KB

Download
memory/3528-148-0x0000000005DA0000-0x0000000005DAA000-memory.dmp

Filesize
40KB

Download
memory/3528-146-0x0000000005DE0000-0x0000000005E72000-memory.dmp

Filesize
584KB

Download
memory/3528-145-0x00000000062B0000-0x0000000006854000-memory.dmp

Filesize
5.6MB

Download
memory/3528-141-0x000000000115E792-mapping.dmp

Download
memory/3528-140-0x0000000001140000-0x0000000001771000-memory.dmp

Filesize
6.2MB

Download