nanocore | fa71d463f30d9188e2d14b957c948dc59d61e2a54f929ebb6d5b607f9219b1f0

Analysis

max time kernel
145s
max time network
151s
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 07:15

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General

Target

IMG_0987632905.pdf.scr
Size

1.2MB
MD5

4316e1daff5eec020fe1bb5a67ba0f5f
SHA1

5cba9cd8503b86e011b24b1010c0ca8439b53f22
SHA256

fa71d463f30d9188e2d14b957c948dc59d61e2a54f929ebb6d5b607f9219b1f0
SHA512

48e0dc711c7f3f56a5abdbbacd861382f9589078dabcf6a57864dbfc8496f98e3c7bb6270c2e4d11fbd7c7238770fc0e4c085d875d761337deecffdb16e8025d
SSDEEP

24576:0AOcZ2i7SPidKsmkcRlnk5p5faNnCLUEVYfA3zEqoGrY88:iedJQlmp5faNrEVYfIzEdGE88

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:

lbdpdkowdf.exeRegSvcs.exe

pid process

4544 lbdpdkowdf.exe
2220 RegSvcs.exe

pid	process
4544	lbdpdkowdf.exe
2220	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:

IMG_0987632905.pdf.scrWScript.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation	IMG_0987632905.pdf.scr
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:

lbdpdkowdf.exeRegSvcs.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run	lbdpdkowdf.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Chrome = "0\\1_15\\lbdpdkowdf.exe 0\\1_15\\pxtxr.hwo"	lbdpdkowdf.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\AutoUpdate = "0\\1_15\\Update.vbs"	lbdpdkowdf.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\DHCP Subsystem = "C:\\Program Files (x86)\\DHCP Subsystem\\dhcpss.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:

lbdpdkowdf.exe

description pid process target process

PID 4544 set thread context of 2220 4544 lbdpdkowdf.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 4544 set thread context of 2220	4544	lbdpdkowdf.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

3748 schtasks.exe
2028 schtasks.exe

pid	process
3748	schtasks.exe
2028	schtasks.exe

Modifies registry class 2 IoCs

Processes:

IMG_0987632905.pdf.scrWScript.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings	IMG_0987632905.pdf.scr
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

2220 RegSvcs.exe
2220 RegSvcs.exe
2220 RegSvcs.exe
2220 RegSvcs.exe
2220 RegSvcs.exe
2220 RegSvcs.exe
2220 RegSvcs.exe
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

RegSvcs.exe

pid process

2220 RegSvcs.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

RegSvcs.exe

description pid process

Token: SeDebugPrivilege 2220 RegSvcs.exe

pid	process
2220	RegSvcs.exe
2220	RegSvcs.exe
2220	RegSvcs.exe
2220	RegSvcs.exe
2220	RegSvcs.exe
2220	RegSvcs.exe
2220	RegSvcs.exe

pid	process
2220	RegSvcs.exe

description	pid	process
Token: SeDebugPrivilege	2220	RegSvcs.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

IMG_0987632905.pdf.scrWScript.exelbdpdkowdf.exeRegSvcs.exe

description	pid	process	target process
PID 4904 wrote to memory of 620	4904	IMG_0987632905.pdf.scr	WScript.exe
PID 4904 wrote to memory of 620	4904	IMG_0987632905.pdf.scr	WScript.exe
PID 4904 wrote to memory of 620	4904	IMG_0987632905.pdf.scr	WScript.exe
PID 620 wrote to memory of 4544	620	WScript.exe	lbdpdkowdf.exe
PID 620 wrote to memory of 4544	620	WScript.exe	lbdpdkowdf.exe
PID 620 wrote to memory of 4544	620	WScript.exe	lbdpdkowdf.exe
PID 4544 wrote to memory of 2220	4544	lbdpdkowdf.exe	RegSvcs.exe
PID 4544 wrote to memory of 2220	4544	lbdpdkowdf.exe	RegSvcs.exe
PID 4544 wrote to memory of 2220	4544	lbdpdkowdf.exe	RegSvcs.exe
PID 4544 wrote to memory of 2220	4544	lbdpdkowdf.exe	RegSvcs.exe
PID 4544 wrote to memory of 2220	4544	lbdpdkowdf.exe	RegSvcs.exe
PID 2220 wrote to memory of 3748	2220	RegSvcs.exe	schtasks.exe
PID 2220 wrote to memory of 3748	2220	RegSvcs.exe	schtasks.exe
PID 2220 wrote to memory of 3748	2220	RegSvcs.exe	schtasks.exe
PID 2220 wrote to memory of 2028	2220	RegSvcs.exe	schtasks.exe
PID 2220 wrote to memory of 2028	2220	RegSvcs.exe	schtasks.exe
PID 2220 wrote to memory of 2028	2220	RegSvcs.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\IMG_0987632905.pdf.scr
"C:\Users\Admin\AppData\Local\Temp\IMG_0987632905.pdf.scr" /S
1⤵
- Checks computer location settings
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:4904

C:\Windows\SysWOW64\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\temp\1_15\knkxrtrk.vbe"
2⤵
- Checks computer location settings
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:620

C:\Users\Admin\AppData\Local\Temp\1_15\lbdpdkowdf.exe
"C:\Users\Admin\AppData\Local\Temp\1_15\lbdpdkowdf.exe" pxtxr.hwo
3⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4544

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:2220

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "DHCP Subsystem" /xml "C:\Users\Admin\AppData\Local\Temp\tmpB7EB.tmp"
5⤵
- Creates scheduled task(s)
PID:3748

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "DHCP Subsystem Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpB8E6.tmp"
5⤵
- Creates scheduled task(s)
PID:2028

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\1_15\amjdkqtpw.pdf

Filesize
57KB

MD5
1f56681cb6f54f406891b8bdb8c7b842

SHA1
a290a1772b9d9af4460db0967b61c5885e60241c

SHA256
c40b267298657ba816a060fe7c7cd3df5d0e0dce0663ac95d884715ba0b70db9

SHA512
cb2e2f52928111058af9f1167a7e24262b49f12f544bfa79c58e1a5f7604164378eb351272143be7b76940d9b91fd00526836ee336bf5382ea8b38ac2fab7132

Download Submit
C:\Users\Admin\AppData\Local\Temp\1_15\bbsmardu.wef

Filesize
420KB

MD5
1cfbd2288bb375364a4ad2907254cbd9

SHA1
2c8d5e8ade10bf395a9480df2642c1f278674e61

SHA256
6f70b29617870bfd9278fce20bdca5c136f25486f6983789e28ba0dadf5207d3

SHA512
1ead07c9eb4b95818d798b8a0dc53f9fbfa0baa1e3b070a8590d892fd68a24ebf660a55e3692b0ee12c9d6229ff70ae6c77e2c540102dedcc03984fc71489c58

Download Submit
C:\Users\Admin\AppData\Local\Temp\1_15\lbdpdkowdf.exe

Filesize
1.1MB

MD5
7cef8917c649e050f63bc4f89cd36310

SHA1
6e35b0d10cb8decf76fc17b4df8fe2529f412bf6

SHA256
ed0dc5fbc1f54d2402531da8db10dc722270f37ceeca3e525fa98365b0217e67

SHA512
60861d714617c3b2201c8870e478889a420b019e41b549638e885540d8acb6612ff10b124cb46be6de062269392d1ac1a87bb5d3cfe54fa96a5be9a652937418

Download Submit
C:\Users\Admin\AppData\Local\Temp\1_15\lbdpdkowdf.exe

Filesize
1.1MB

MD5
7cef8917c649e050f63bc4f89cd36310

SHA1
6e35b0d10cb8decf76fc17b4df8fe2529f412bf6

SHA256
ed0dc5fbc1f54d2402531da8db10dc722270f37ceeca3e525fa98365b0217e67

SHA512
60861d714617c3b2201c8870e478889a420b019e41b549638e885540d8acb6612ff10b124cb46be6de062269392d1ac1a87bb5d3cfe54fa96a5be9a652937418

Download Submit
C:\Users\Admin\AppData\Local\Temp\1_15\pxtxr.hwo

Filesize
103.2MB

MD5
cf67820f5a924c63c63c8f2c9ab6ac08

SHA1
ff3a5a8c4d3bf3b4966000f708d276cd8e6b8835

SHA256
d524fc2cbdb05d6d308269ada13b0c6452dcc466d977f5905cfeebe3532d2303

SHA512
0f8a26bba1924e0582bc90f9ec33e04bfca2dffb623c385d1c20a3480ffe288c55887805f53170623a024d62619b3026dc82c4e3bd93eead9f67d261ca1ee14e

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\tmpB7EB.tmp

Filesize
1KB

MD5
95aceabc58acad5d73372b0966ee1b35

SHA1
2293b7ad4793cf574b1a5220e85f329b5601040a

SHA256
8d9642e1c3cd1e0b5d1763de2fb5e605ba593e5a918b93eec15acbc5dcc48fd4

SHA512
00760dfc9d8caf357f0cee5336e5448a4cca18e32cc63e1a69c16e34fe00ea29acd5b2cf278e86c6f9c3e66a1b176d27ed927361848212e6bf1fade7d3d06e74

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpB8E6.tmp

Filesize
1KB

MD5
2f26d92c1eeead3896820e56ec46f6f1

SHA1
d95533b61eed7d89e4ada56bc566d60e42ac1f61

SHA256
99a158463ce40c750bad6991ae1fceece305a0dbf8e209dd7147b5d539756bfa

SHA512
6c1ed12d5e1afcd9e7f327e0153786fd8594f75a995f341c408ef014e69917452a9fe99c511f0249aceb57b3045b707f1fd3f404e4086cfbf0aadcb3318db892

Download Submit
C:\Users\Admin\AppData\Local\temp\1_15\knkxrtrk.vbe

Filesize
21KB

MD5
718f586e8718934de254b53eb1723820

SHA1
0710484dcf711ade141dbf467c47b6fc82be9eb8

SHA256
c9b577ae740aa38d798b561857a76fd7914955848a77c706b296bdf692bab593

SHA512
4c7c36e482d652d96dc7c8e9660b497187cf0767162c3a0aa659f00b166e76a6e2ca7fa3571ed2873fb2ed731ee3a295979876c33cbf62cd2a3879f8259ba8bf

Download Submit
memory/620-132-0x0000000000000000-mapping.dmp

Download
memory/2028-151-0x0000000000000000-mapping.dmp

Download
memory/2220-144-0x0000000000F00000-0x0000000000F3A000-memory.dmp

Filesize
232KB

Download
memory/2220-145-0x0000000005FC0000-0x0000000006564000-memory.dmp

Filesize
5.6MB

Download
memory/2220-146-0x0000000005B10000-0x0000000005BA2000-memory.dmp

Filesize
584KB

Download
memory/2220-147-0x0000000005BB0000-0x0000000005C4C000-memory.dmp

Filesize
624KB

Download
memory/2220-148-0x00000000059C0000-0x00000000059CA000-memory.dmp

Filesize
40KB

Download
memory/2220-141-0x0000000000F1E792-mapping.dmp

Download
memory/2220-140-0x0000000000F00000-0x000000000140A000-memory.dmp

Filesize
5.0MB

Download
memory/3748-149-0x0000000000000000-mapping.dmp

Download
memory/4544-135-0x0000000000000000-mapping.dmp

Download