nanocore | 12c5688e077824b181e38335ed2d314c7775c5b31012092e717ba7ba952d36c9

General

Target

PO Order.pdf.exe
Size

344KB
MD5

532dacf2cd445b16dc5d134c3b3b9a44
SHA1

f28b6e11ef47c15ee939beda3772f1d35357fbf0
SHA256

12c5688e077824b181e38335ed2d314c7775c5b31012092e717ba7ba952d36c9
SHA512

d034c19d5122bed3c55be40233f67e19cfd8eb74af3e0e9e8dc44967d03c7eb311dec5275c621328eae813d0df181e0c6cfbd6291e852451681ff35d19f9c398
SSDEEP

6144:mbE/HUbBoBFqB8Bm2NHm9SjEtw2G3PMnS3noAwXZaMey1fPWm2pWW7n4CqbRk:mb/BGqBMtg9SEw13PMandwXUyNPF6lnf

Score

10^/10

nanocore evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

chibuikelight.ddns.net:1122

Mutex

d2cbe170-91e2-41f9-913f-0880782b9838

Attributes

activate_away_mode
true
backup_connection_host
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2022-07-30T23:43:32.343213436Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
1122
default_group
love
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
d2cbe170-91e2-41f9-913f-0880782b9838
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
chibuikelight.ddns.net
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
Executes dropped EXE 1 IoCs

Processes:

xpgyulgf.exe

pid process

616 xpgyulgf.exe
Loads dropped DLL 3 IoCs

Processes:

PO Order.pdf.exexpgyulgf.exexpgyulgf.exe

pid process

1460 PO Order.pdf.exe
616 xpgyulgf.exe
1728 xpgyulgf.exe

pid	process
616	xpgyulgf.exe

pid	process
1460	PO Order.pdf.exe
616	xpgyulgf.exe
1728	xpgyulgf.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

xpgyulgf.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\vjcvkqh = "C:\\Users\\Admin\\AppData\\Roaming\\ktwysttooghyi\\lrfflxe.exe \"C:\\Users\\Admin\\AppData\\Local\\Temp\\xpgyulgf.exe\""	xpgyulgf.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

xpgyulgf.exe

description ioc process

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

Processes:

xpgyulgf.exe

description pid process target process

PID 616 set thread context of 1728 616 xpgyulgf.exe xpgyulgf.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

xpgyulgf.exe

pid process

1728 xpgyulgf.exe
1728 xpgyulgf.exe
1728 xpgyulgf.exe
1728 xpgyulgf.exe
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

xpgyulgf.exe

pid process

1728 xpgyulgf.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

xpgyulgf.exe

description pid process

Token: SeDebugPrivilege 1728 xpgyulgf.exe

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

description	pid	process	target process
PID 616 set thread context of 1728	616	xpgyulgf.exe	xpgyulgf.exe

pid	process
1728	xpgyulgf.exe
1728	xpgyulgf.exe
1728	xpgyulgf.exe
1728	xpgyulgf.exe

pid	process
1728	xpgyulgf.exe

description	pid	process
Token: SeDebugPrivilege	1728	xpgyulgf.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

PO Order.pdf.exexpgyulgf.exe

description	pid	process	target process
PID 1460 wrote to memory of 616	1460	PO Order.pdf.exe	xpgyulgf.exe
PID 1460 wrote to memory of 616	1460	PO Order.pdf.exe	xpgyulgf.exe
PID 1460 wrote to memory of 616	1460	PO Order.pdf.exe	xpgyulgf.exe
PID 1460 wrote to memory of 616	1460	PO Order.pdf.exe	xpgyulgf.exe
PID 616 wrote to memory of 1728	616	xpgyulgf.exe	xpgyulgf.exe
PID 616 wrote to memory of 1728	616	xpgyulgf.exe	xpgyulgf.exe
PID 616 wrote to memory of 1728	616	xpgyulgf.exe	xpgyulgf.exe
PID 616 wrote to memory of 1728	616	xpgyulgf.exe	xpgyulgf.exe
PID 616 wrote to memory of 1728	616	xpgyulgf.exe	xpgyulgf.exe

C:\Users\Admin\AppData\Local\Temp\PO Order.pdf.exe
"C:\Users\Admin\AppData\Local\Temp\PO Order.pdf.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1460

C:\Users\Admin\AppData\Local\Temp\xpgyulgf.exe
"C:\Users\Admin\AppData\Local\Temp\xpgyulgf.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:616

C:\Users\Admin\AppData\Local\Temp\xpgyulgf.exe
"C:\Users\Admin\AppData\Local\Temp\xpgyulgf.exe"
3⤵
- Loads dropped DLL
- Checks whether UAC is enabled
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
PID:1728

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\hnvmoa.ca

Filesize
280KB

MD5
25881806c8508afe30a354ae2af5347d

SHA1
c65b407a2f9f69f702fc84bdb6c9a189d87e0be0

SHA256
b19d1fc37a65f161444764173bd45910b763cf6117d11ac6d3d64a00f70ec483

SHA512
dc3beb98e22eed576e47234893dd7ffb531e89dc592acee6692d8b2d91f5595eb926cd717557662b0e7e9ae69d46ba8f83a7b346fdbe3013b3e072eaf907d978

Download Submit
C:\Users\Admin\AppData\Local\Temp\jvcllzq.d

Filesize
6KB

MD5
eb9955586c083c89861d9627120297c6

SHA1
3eb394c03d21cd4ceb39e8061b93e2e491638a6c

SHA256
c2510cd245277bf98ff10288901443c3fbabdee2020d45d8b16c03caf80adb1d

SHA512
743317a894582591f8f59e371be8bec5569c67e9c65d036c92f5fa3d5b0d0105d46b20d182db2feff43e8aa3bb12fe50c254de44e942c9163838fe93a0c8bb60

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

Filesize
58KB

MD5
e1d08d3966e34ae8e9016603229c311d

SHA1
34308e175e2b4e98a2e03764de19b3fba136ef9c

SHA256
50d6641bcea26c34b6f8dfbe3780518de13c9f10dfd776224774a9f6b1f92d59

SHA512
441fa5821b11eedd2abba19c65ed1ec14ddbdc81599dec8ffc6ab1100655329326373cc99784fe740bb477cc5d9f4c468216b6cb710993391db4d54a59f5d35f

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

Filesize
58KB

MD5
e1d08d3966e34ae8e9016603229c311d

SHA1
34308e175e2b4e98a2e03764de19b3fba136ef9c

SHA256
50d6641bcea26c34b6f8dfbe3780518de13c9f10dfd776224774a9f6b1f92d59

SHA512
441fa5821b11eedd2abba19c65ed1ec14ddbdc81599dec8ffc6ab1100655329326373cc99784fe740bb477cc5d9f4c468216b6cb710993391db4d54a59f5d35f

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

Filesize
58KB

MD5
e1d08d3966e34ae8e9016603229c311d

SHA1
34308e175e2b4e98a2e03764de19b3fba136ef9c

SHA256
50d6641bcea26c34b6f8dfbe3780518de13c9f10dfd776224774a9f6b1f92d59

SHA512
441fa5821b11eedd2abba19c65ed1ec14ddbdc81599dec8ffc6ab1100655329326373cc99784fe740bb477cc5d9f4c468216b6cb710993391db4d54a59f5d35f

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

Filesize
58KB

MD5
e1d08d3966e34ae8e9016603229c311d

SHA1
34308e175e2b4e98a2e03764de19b3fba136ef9c

SHA256
50d6641bcea26c34b6f8dfbe3780518de13c9f10dfd776224774a9f6b1f92d59

SHA512
441fa5821b11eedd2abba19c65ed1ec14ddbdc81599dec8ffc6ab1100655329326373cc99784fe740bb477cc5d9f4c468216b6cb710993391db4d54a59f5d35f

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

Filesize
58KB

MD5
e1d08d3966e34ae8e9016603229c311d

SHA1
34308e175e2b4e98a2e03764de19b3fba136ef9c

SHA256
50d6641bcea26c34b6f8dfbe3780518de13c9f10dfd776224774a9f6b1f92d59

SHA512
441fa5821b11eedd2abba19c65ed1ec14ddbdc81599dec8ffc6ab1100655329326373cc99784fe740bb477cc5d9f4c468216b6cb710993391db4d54a59f5d35f

Download Submit
memory/616-56-0x0000000000000000-mapping.dmp

Download
memory/1460-54-0x0000000075FE1000-0x0000000075FE3000-memory.dmp

Filesize
8KB

Download
memory/1728-68-0x0000000000A60000-0x0000000000A7E000-memory.dmp

Filesize
120KB

Download
memory/1728-72-0x0000000000BE0000-0x0000000000BEE000-memory.dmp

Filesize
56KB

Download
memory/1728-67-0x0000000000950000-0x000000000095A000-memory.dmp

Filesize
40KB

Download
memory/1728-63-0x0000000000401896-mapping.dmp

Download
memory/1728-69-0x0000000000960000-0x000000000096A000-memory.dmp

Filesize
40KB

Download
memory/1728-70-0x0000000000AD0000-0x0000000000AE2000-memory.dmp

Filesize
72KB

Download
memory/1728-71-0x0000000000B70000-0x0000000000B8A000-memory.dmp

Filesize
104KB

Download
memory/1728-73-0x0000000000C30000-0x0000000000C42000-memory.dmp

Filesize
72KB

Download
memory/1728-74-0x0000000000E10000-0x0000000000E1E000-memory.dmp

Filesize
56KB

Download
memory/1728-66-0x0000000000380000-0x00000000003B8000-memory.dmp

Filesize
224KB

Download
memory/1728-75-0x0000000000E20000-0x0000000000E2C000-memory.dmp

Filesize
48KB

Download
memory/1728-76-0x00000000011C0000-0x00000000011D4000-memory.dmp

Filesize
80KB

Download
memory/1728-77-0x00000000048C0000-0x00000000048D0000-memory.dmp

Filesize
64KB

Download
memory/1728-78-0x00000000048D0000-0x00000000048E4000-memory.dmp

Filesize
80KB

Download
memory/1728-79-0x00000000048E0000-0x00000000048EE000-memory.dmp

Filesize
56KB

Download
memory/1728-80-0x0000000004940000-0x000000000496E000-memory.dmp

Filesize
184KB

Download
memory/1728-81-0x0000000004970000-0x0000000004984000-memory.dmp

Filesize
80KB

Download

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