nanocore | 6e246fe3f0b1f37ab0732885249bd7d2b4a58d502d7d4ffe55720e3a903286d9

Analysis

max time kernel
145s
max time network
151s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-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
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
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

1640 tixkbagfs.exe
1752 RegSvcs.exe
Loads dropped DLL 2 IoCs

Processes:

WScript.exetixkbagfs.exe

pid process

1868 WScript.exe
1640 tixkbagfs.exe

pid	process
1640	tixkbagfs.exe
1752	RegSvcs.exe

pid	process
1868	WScript.exe
1640	tixkbagfs.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
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
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\UDP Service = "C:\\Program Files (x86)\\UDP Service\\udpsv.exe"	RegSvcs.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 1640 set thread context of 1752 1640 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 1640 set thread context of 1752	1640	tixkbagfs.exe	RegSvcs.exe

Drops file in Program Files directory 2 IoCs

Processes:

RegSvcs.exe

description	ioc	process
File created	C:\Program Files (x86)\UDP Service\udpsv.exe	RegSvcs.exe
File opened for modification	C:\Program Files (x86)\UDP Service\udpsv.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

756 schtasks.exe
1744 schtasks.exe
Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

RegSvcs.exe

pid process

1752 RegSvcs.exe
1752 RegSvcs.exe
1752 RegSvcs.exe
1752 RegSvcs.exe
1752 RegSvcs.exe
1752 RegSvcs.exe
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

RegSvcs.exe

pid process

1752 RegSvcs.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

RegSvcs.exe

description pid process

Token: SeDebugPrivilege 1752 RegSvcs.exe

pid	process
756	schtasks.exe
1744	schtasks.exe

pid	process
1752	RegSvcs.exe
1752	RegSvcs.exe
1752	RegSvcs.exe
1752	RegSvcs.exe
1752	RegSvcs.exe
1752	RegSvcs.exe

pid	process
1752	RegSvcs.exe

description	pid	process
Token: SeDebugPrivilege	1752	RegSvcs.exe

Suspicious use of WriteProcessMemory 28 IoCs

Processes:

6fc3c0f8ac80e213b214721c63ccf070.exeWScript.exetixkbagfs.exeRegSvcs.exe

description	pid	process	target process
PID 1672 wrote to memory of 1868	1672	6fc3c0f8ac80e213b214721c63ccf070.exe	WScript.exe
PID 1672 wrote to memory of 1868	1672	6fc3c0f8ac80e213b214721c63ccf070.exe	WScript.exe
PID 1672 wrote to memory of 1868	1672	6fc3c0f8ac80e213b214721c63ccf070.exe	WScript.exe
PID 1672 wrote to memory of 1868	1672	6fc3c0f8ac80e213b214721c63ccf070.exe	WScript.exe
PID 1868 wrote to memory of 1640	1868	WScript.exe	tixkbagfs.exe
PID 1868 wrote to memory of 1640	1868	WScript.exe	tixkbagfs.exe
PID 1868 wrote to memory of 1640	1868	WScript.exe	tixkbagfs.exe
PID 1868 wrote to memory of 1640	1868	WScript.exe	tixkbagfs.exe
PID 1868 wrote to memory of 1640	1868	WScript.exe	tixkbagfs.exe
PID 1868 wrote to memory of 1640	1868	WScript.exe	tixkbagfs.exe
PID 1868 wrote to memory of 1640	1868	WScript.exe	tixkbagfs.exe
PID 1640 wrote to memory of 1752	1640	tixkbagfs.exe	RegSvcs.exe
PID 1640 wrote to memory of 1752	1640	tixkbagfs.exe	RegSvcs.exe
PID 1640 wrote to memory of 1752	1640	tixkbagfs.exe	RegSvcs.exe
PID 1640 wrote to memory of 1752	1640	tixkbagfs.exe	RegSvcs.exe
PID 1640 wrote to memory of 1752	1640	tixkbagfs.exe	RegSvcs.exe
PID 1640 wrote to memory of 1752	1640	tixkbagfs.exe	RegSvcs.exe
PID 1640 wrote to memory of 1752	1640	tixkbagfs.exe	RegSvcs.exe
PID 1640 wrote to memory of 1752	1640	tixkbagfs.exe	RegSvcs.exe
PID 1640 wrote to memory of 1752	1640	tixkbagfs.exe	RegSvcs.exe
PID 1752 wrote to memory of 756	1752	RegSvcs.exe	schtasks.exe
PID 1752 wrote to memory of 756	1752	RegSvcs.exe	schtasks.exe
PID 1752 wrote to memory of 756	1752	RegSvcs.exe	schtasks.exe
PID 1752 wrote to memory of 756	1752	RegSvcs.exe	schtasks.exe
PID 1752 wrote to memory of 1744	1752	RegSvcs.exe	schtasks.exe
PID 1752 wrote to memory of 1744	1752	RegSvcs.exe	schtasks.exe
PID 1752 wrote to memory of 1744	1752	RegSvcs.exe	schtasks.exe
PID 1752 wrote to memory of 1744	1752	RegSvcs.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\6fc3c0f8ac80e213b214721c63ccf070.exe
"C:\Users\Admin\AppData\Local\Temp\6fc3c0f8ac80e213b214721c63ccf070.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1672

C:\Windows\SysWOW64\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\temp\10_14\phhqlxhjg.vbe"
2⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1868

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
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1640

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:1752

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "UDP Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmp7E64.tmp"
5⤵
- Creates scheduled task(s)
PID:756

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "UDP Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp8058.tmp"
5⤵
- Creates scheduled task(s)
PID:1744

Network

MITRE ATT&CK Matrix ATT&CK 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

Exfiltration

Command and Control

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
0e06054beb13192588e745ee63a84173

SHA1
30b7d4d1277bafd04a83779fd566a1f834a8d113

SHA256
c5d6d56ded55fbd6c150ee3a0eb2e5671cae83106be2be4d70ce50aa50bab768

SHA512
251a112f3f037e62ff67a467389e47a56afb344bc942b17efa9bd2970494718b26bbee9adc3ac35f93ee4d2114aa426b6d0ea4bafad294b6c118a15f1977c215

Download Submit
C:\Users\Admin\AppData\Local\Temp\RegSvcs.exe
Filesize
44KB

MD5
0e06054beb13192588e745ee63a84173

SHA1
30b7d4d1277bafd04a83779fd566a1f834a8d113

SHA256
c5d6d56ded55fbd6c150ee3a0eb2e5671cae83106be2be4d70ce50aa50bab768

SHA512
251a112f3f037e62ff67a467389e47a56afb344bc942b17efa9bd2970494718b26bbee9adc3ac35f93ee4d2114aa426b6d0ea4bafad294b6c118a15f1977c215

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp7E64.tmp
Filesize
1KB

MD5
95aceabc58acad5d73372b0966ee1b35

SHA1
2293b7ad4793cf574b1a5220e85f329b5601040a

SHA256
8d9642e1c3cd1e0b5d1763de2fb5e605ba593e5a918b93eec15acbc5dcc48fd4

SHA512
00760dfc9d8caf357f0cee5336e5448a4cca18e32cc63e1a69c16e34fe00ea29acd5b2cf278e86c6f9c3e66a1b176d27ed927361848212e6bf1fade7d3d06e74

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp8058.tmp
Filesize
1KB

MD5
0a24db62cb5b84309c4803346caaa25d

SHA1
67660778f61bb44168c33ed3fe56ed86cf9583e8

SHA256
38d38647af394a04ee6add9f05c43244f04e64a6b96257f4b241a5038efa82df

SHA512
d25d9df063f44595d5e0bf890755bd387655131ff369eeedf3d11ffcc6202ca4455bbb33a8a926dd06839cbd1ddec3d06809b3c66a82c6518aa14beaa469a548

Download Submit
C:\Users\Admin\AppData\Local\temp\10_14\phhqlxhjg.vbe
Filesize
30KB

MD5
06c087670d6dcad3e9bde3fbd7e7cf45

SHA1
3f472622b7bd1374f30c0507e7ed9d04cb4831be

SHA256
e3489f379919aa1c1356d664513c83dc268a620408c13d3b9677627cced97d01

SHA512
9575819043bbbfdb9c546599dbd019aad5f35bb8519b058e371324b2f8932c5e49a38e8416e54cbd6cd6df4ac6871d44429f70a50f5a03ba97923989612d1508

Download Submit
\Users\Admin\AppData\Local\Temp\10_14\tixkbagfs.exe
Filesize
1.1MB

MD5
36f2cc80742b6e66a7cf997fd3b5b20b

SHA1
05947cdd2a59f0158516fd1705295b214f2dd065

SHA256
823b39d3b111ea4483d94d693768c49cbc7533c441483f75e5fcfdb223db8b1f

SHA512
457be34f92af93fce11bf0bed23642ab976008bf93e3fb47bc837ff5268a82f701406c6853e13127010c3ea502454c7711d22bc36db5e2e3fe20d22ca9e722bd

Download Submit
\Users\Admin\AppData\Local\Temp\RegSvcs.exe
Filesize
44KB

MD5
0e06054beb13192588e745ee63a84173

SHA1
30b7d4d1277bafd04a83779fd566a1f834a8d113

SHA256
c5d6d56ded55fbd6c150ee3a0eb2e5671cae83106be2be4d70ce50aa50bab768

SHA512
251a112f3f037e62ff67a467389e47a56afb344bc942b17efa9bd2970494718b26bbee9adc3ac35f93ee4d2114aa426b6d0ea4bafad294b6c118a15f1977c215

Download Submit
memory/756-79-0x0000000000000000-mapping.dmp

Download
memory/1640-60-0x0000000000000000-mapping.dmp

Download
memory/1672-54-0x0000000075BD1000-0x0000000075BD3000-memory.dmp

Filesize
8KB

Download
memory/1744-81-0x0000000000000000-mapping.dmp

Download
memory/1752-69-0x0000000000500000-0x0000000000C26000-memory.dmp

Filesize
7.1MB

Download
memory/1752-75-0x0000000000500000-0x0000000000C26000-memory.dmp

Filesize
7.1MB

Download
memory/1752-77-0x0000000000500000-0x000000000053A000-memory.dmp

Filesize
232KB

Download
memory/1752-73-0x0000000000500000-0x0000000000C26000-memory.dmp

Filesize
7.1MB

Download
memory/1752-70-0x000000000051E792-mapping.dmp

Download
memory/1752-67-0x0000000000500000-0x0000000000C26000-memory.dmp

Filesize
7.1MB

Download
memory/1752-83-0x00000000003A0000-0x00000000003AA000-memory.dmp

Filesize
40KB

Download
memory/1752-84-0x00000000003F0000-0x00000000003FC000-memory.dmp

Filesize
48KB

Download
memory/1752-85-0x0000000000CE0000-0x0000000000CFE000-memory.dmp

Filesize
120KB

Download
memory/1752-86-0x0000000000D00000-0x0000000000D0A000-memory.dmp

Filesize
40KB

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memory/1868-55-0x0000000000000000-mapping.dmp

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