nanocore | 0aeb9b8280cf3a77ec5e44ff5b3866aa17f011a1e0b47dd7b70133d8fd607b56

General

Target

n2m18_Payment_receipt.js
Size

81KB
MD5

b52fe288ee67ceccaeee80dc4749c358
SHA1

38c1641f3aa617170306572bfd41e8a30b42d693
SHA256

0aeb9b8280cf3a77ec5e44ff5b3866aa17f011a1e0b47dd7b70133d8fd607b56
SHA512

dbf83aee7ad7a2691883226a5a960a3b7e7484fcc96a4023572f30e4e34e35647ecf52b918f5323f625a474183bf716e01ab580ab13329d56638677643418c43

Score

10^/10

nanocore vjw0rm evasion keylogger persistence spyware stealer suricata trojan worm

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

kenimaf.duckdns.org:8090

Mutex

543e7469-d950-4ec2-a110-de54f8d16167

Attributes

activate_away_mode
true
backup_connection_host
kenimaf.duckdns.org
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2021-08-01T06:39:50.225932136Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
8090
default_group
kenn
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
543e7469-d950-4ec2-a110-de54f8d16167
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
kenimaf.duckdns.org
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

Extracted

Family

vjw0rm

C2

http://6200js.duckdns.org:6200

Signatures

NanoCore
NanoCore is a remote access tool (RAT) with a variety of capabilities.
keylogger trojan stealer spyware nanocore
Vjw0rm
Vjw0rm is a remote access trojan written in JavaScript.
trojan worm vjw0rm
Windows security bypass 2 TTPs
evasion trojan

Disabling Security Tools
T1089

Modify Registry
T1112
suricata: ET MALWARE Possible NanoCore C2 60B
suricata: ET MALWARE Possible NanoCore C2 60B
suricata
Blocklisted process makes network request 5 IoCs

Processes:

wscript.exe

flow pid process

9 3728 wscript.exe
27 3728 wscript.exe
28 3728 wscript.exe
30 3728 wscript.exe
32 3728 wscript.exe
Downloads MZ/PE file
Executes dropped EXE 2 IoCs

Processes:

hqbo6d7.exehqbo6d7.exe

pid process

1656 hqbo6d7.exe
1368 hqbo6d7.exe

flow	pid	process
9	3728	wscript.exe
27	3728	wscript.exe
28	3728	wscript.exe
30	3728	wscript.exe
32	3728	wscript.exe

Drops startup file 2 IoCs

Processes:

wscript.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\n2m18_Payment_receipt.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\n2m18_Payment_receipt.js	wscript.exe

Windows security modification 2 TTPs 4 IoCs

evasion trojan

Disabling Security Tools

T1089

Modify Registry

T1112

Processes:

hqbo6d7.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Exclusions\Paths	hqbo6d7.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Exclusions	hqbo6d7.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\Microsoft.NET\Framework\\svchost.exe = "0"	hqbo6d7.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\hqbo6d7.exe = "0"	hqbo6d7.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

wscript.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Windows\CurrentVersion\Run	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Windows\CurrentVersion\Run\BB4HJP0E1C = "'C:\\Users\\Admin\\AppData\\Local\\Temp\\n2m18_Payment_receipt.js'"	wscript.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

hqbo6d7.exe

description ioc process

Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA hqbo6d7.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	hqbo6d7.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 17 IoCs

Processes:

hqbo6d7.exe

pid	process
1656	hqbo6d7.exe
1656	hqbo6d7.exe
1656	hqbo6d7.exe
1656	hqbo6d7.exe
1656	hqbo6d7.exe
1656	hqbo6d7.exe
1656	hqbo6d7.exe
1656	hqbo6d7.exe
1656	hqbo6d7.exe
1656	hqbo6d7.exe
1656	hqbo6d7.exe
1656	hqbo6d7.exe
1656	hqbo6d7.exe
1656	hqbo6d7.exe
1656	hqbo6d7.exe
1656	hqbo6d7.exe
1656	hqbo6d7.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

hqbo6d7.exe

description pid process target process

PID 1656 set thread context of 1368 1656 hqbo6d7.exe hqbo6d7.exe

description	pid	process	target process
PID 1656 set thread context of 1368	1656	hqbo6d7.exe	hqbo6d7.exe

Drops file in Windows directory 2 IoCs

Processes:

hqbo6d7.exe

description	ioc	process
File created	C:\Windows\Microsoft.NET\Framework\\svchost.exe	hqbo6d7.exe
File opened for modification	C:\Windows\Microsoft.NET\Framework\\svchost.exe	hqbo6d7.exe

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

System Information Discovery
T1082
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

8 1656 WerFault.exe hqbo6d7.exe
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exe

pid process

816 schtasks.exe

pid	pid_target	process	target process
8	1656	WerFault.exe	hqbo6d7.exe

pid	process
816	schtasks.exe

Suspicious behavior: EnumeratesProcesses 32 IoCs

Processes:

powershell.exehqbo6d7.exepowershell.exepowershell.exehqbo6d7.exeWerFault.exe

pid	process
1856	powershell.exe
1656	hqbo6d7.exe
1516	powershell.exe
1656	hqbo6d7.exe
1656	hqbo6d7.exe
1520	powershell.exe
1520	powershell.exe
1856	powershell.exe
1516	powershell.exe
1368	hqbo6d7.exe
1368	hqbo6d7.exe
1368	hqbo6d7.exe
1856	powershell.exe
1516	powershell.exe
1520	powershell.exe
8	WerFault.exe
8	WerFault.exe
8	WerFault.exe
8	WerFault.exe
8	WerFault.exe
8	WerFault.exe
8	WerFault.exe
8	WerFault.exe
8	WerFault.exe
8	WerFault.exe
8	WerFault.exe
8	WerFault.exe
8	WerFault.exe
8	WerFault.exe
1368	hqbo6d7.exe
1368	hqbo6d7.exe
1368	hqbo6d7.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

Processes:

hqbo6d7.exepowershell.exepowershell.exepowershell.exeWerFault.exehqbo6d7.exe

description	pid	process
Token: SeDebugPrivilege	1656	hqbo6d7.exe
Token: SeDebugPrivilege	1856	powershell.exe
Token: SeDebugPrivilege	1520	powershell.exe
Token: SeDebugPrivilege	1516	powershell.exe
Token: SeRestorePrivilege	8	WerFault.exe
Token: SeBackupPrivilege	8	WerFault.exe
Token: SeDebugPrivilege	1368	hqbo6d7.exe
Token: SeDebugPrivilege	8	WerFault.exe

Suspicious use of WriteProcessMemory 22 IoCs

Processes:

wscript.exehqbo6d7.exe

description	pid	process	target process
PID 3728 wrote to memory of 816	3728	wscript.exe	schtasks.exe
PID 3728 wrote to memory of 816	3728	wscript.exe	schtasks.exe
PID 3728 wrote to memory of 1656	3728	wscript.exe	hqbo6d7.exe
PID 3728 wrote to memory of 1656	3728	wscript.exe	hqbo6d7.exe
PID 3728 wrote to memory of 1656	3728	wscript.exe	hqbo6d7.exe
PID 1656 wrote to memory of 1516	1656	hqbo6d7.exe	powershell.exe
PID 1656 wrote to memory of 1516	1656	hqbo6d7.exe	powershell.exe
PID 1656 wrote to memory of 1516	1656	hqbo6d7.exe	powershell.exe
PID 1656 wrote to memory of 1520	1656	hqbo6d7.exe	powershell.exe
PID 1656 wrote to memory of 1520	1656	hqbo6d7.exe	powershell.exe
PID 1656 wrote to memory of 1520	1656	hqbo6d7.exe	powershell.exe
PID 1656 wrote to memory of 1856	1656	hqbo6d7.exe	powershell.exe
PID 1656 wrote to memory of 1856	1656	hqbo6d7.exe	powershell.exe
PID 1656 wrote to memory of 1856	1656	hqbo6d7.exe	powershell.exe
PID 1656 wrote to memory of 1368	1656	hqbo6d7.exe	hqbo6d7.exe
PID 1656 wrote to memory of 1368	1656	hqbo6d7.exe	hqbo6d7.exe
PID 1656 wrote to memory of 1368	1656	hqbo6d7.exe	hqbo6d7.exe
PID 1656 wrote to memory of 1368	1656	hqbo6d7.exe	hqbo6d7.exe
PID 1656 wrote to memory of 1368	1656	hqbo6d7.exe	hqbo6d7.exe
PID 1656 wrote to memory of 1368	1656	hqbo6d7.exe	hqbo6d7.exe
PID 1656 wrote to memory of 1368	1656	hqbo6d7.exe	hqbo6d7.exe
PID 1656 wrote to memory of 1368	1656	hqbo6d7.exe	hqbo6d7.exe

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\n2m18_Payment_receipt.js
1⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:3728

C:\Windows\System32\schtasks.exe
"C:\Windows\System32\schtasks.exe" /create /sc minute /mo 30 /tn Skype /tr 'C:\Users\Admin\AppData\Local\Temp\n2m18_Payment_receipt.js
2⤵
- Creates scheduled task(s)
PID:816

C:\Users\Admin\AppData\Local\Temp\hqbo6d7.exe
"C:\Users\Admin\AppData\Local\Temp\hqbo6d7.exe"
2⤵
- Executes dropped EXE
- Windows security modification
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1656

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Windows\Microsoft.NET\Framework\\svchost.exe" -Force
3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1516

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\hqbo6d7.exe" -Force
3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1520

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Windows\Microsoft.NET\Framework\\svchost.exe" -Force
3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1856

C:\Users\Admin\AppData\Local\Temp\hqbo6d7.exe
"C:\Users\Admin\AppData\Local\Temp\hqbo6d7.exe"
3⤵
- Executes dropped EXE
- Checks whether UAC is enabled
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1368

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1656 -s 2260
3⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:8

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Registry Run Keys / Startup Folder

1

T1060

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Disabling Security Tools

2

T1089

Modify Registry

3

T1112

Credential Access

Discovery

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\hqbo6d7.exe
MD5
5429e76da1a8200f93eb9655d3b86a07

SHA1
49250d67b4427a41ac8ce27c62c09e1d1d6c15f0

SHA256
56a84cc9c44d6db19720b5594362b74a683cc83d3f454a135fe6698269b364d3

SHA512
95f6a6ea27f50c8c0b10bb1b6f8c6f0c75daecbb9f39f3a8bdc1b8bb4cebf4f6d1e12ad6b7890842e87aad7f07891db6624bbf23a40f4ebb4e1de839a0617ac1

Download Submit
C:\Users\Admin\AppData\Local\Temp\hqbo6d7.exe
MD5
5429e76da1a8200f93eb9655d3b86a07

SHA1
49250d67b4427a41ac8ce27c62c09e1d1d6c15f0

SHA256
56a84cc9c44d6db19720b5594362b74a683cc83d3f454a135fe6698269b364d3

SHA512
95f6a6ea27f50c8c0b10bb1b6f8c6f0c75daecbb9f39f3a8bdc1b8bb4cebf4f6d1e12ad6b7890842e87aad7f07891db6624bbf23a40f4ebb4e1de839a0617ac1

Download Submit
C:\Users\Admin\AppData\Local\Temp\hqbo6d7.exe
MD5
5429e76da1a8200f93eb9655d3b86a07

SHA1
49250d67b4427a41ac8ce27c62c09e1d1d6c15f0

SHA256
56a84cc9c44d6db19720b5594362b74a683cc83d3f454a135fe6698269b364d3

SHA512
95f6a6ea27f50c8c0b10bb1b6f8c6f0c75daecbb9f39f3a8bdc1b8bb4cebf4f6d1e12ad6b7890842e87aad7f07891db6624bbf23a40f4ebb4e1de839a0617ac1

Download Submit
memory/816-115-0x0000000000000000-mapping.dmp

Download
memory/1368-179-0x0000000006220000-0x0000000006239000-memory.dmp

Filesize
100KB

Download
memory/1368-194-0x0000000006AF0000-0x0000000006AF6000-memory.dmp

Filesize
24KB

Download
memory/1368-193-0x0000000006AB0000-0x0000000006AC5000-memory.dmp

Filesize
84KB

Download
memory/1368-192-0x0000000006350000-0x000000000635D000-memory.dmp

Filesize
52KB

Download
memory/1368-153-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/1368-155-0x000000000041E792-mapping.dmp

Download
memory/1368-176-0x0000000005AD0000-0x0000000005AD5000-memory.dmp

Filesize
20KB

Download
memory/1368-182-0x00000000055F0000-0x0000000005AEE000-memory.dmp

Filesize
5.0MB

Download
memory/1368-181-0x0000000005AE0000-0x0000000005AE3000-memory.dmp

Filesize
12KB

Download
memory/1516-235-0x000000007ECA0000-0x000000007ECA1000-memory.dmp

Filesize
4KB

Download
memory/1516-135-0x0000000000A90000-0x0000000000A91000-memory.dmp

Filesize
4KB

Download
memory/1516-145-0x0000000001330000-0x0000000001331000-memory.dmp

Filesize
4KB

Download
memory/1516-129-0x0000000000000000-mapping.dmp

Download
memory/1516-277-0x0000000001333000-0x0000000001334000-memory.dmp

Filesize
4KB

Download
memory/1516-132-0x0000000000A90000-0x0000000000A91000-memory.dmp

Filesize
4KB

Download
memory/1516-183-0x0000000007F50000-0x0000000007F51000-memory.dmp

Filesize
4KB

Download
memory/1516-190-0x0000000000A90000-0x0000000000A91000-memory.dmp

Filesize
4KB

Download
memory/1516-149-0x0000000001332000-0x0000000001333000-memory.dmp

Filesize
4KB

Download
memory/1520-133-0x0000000003520000-0x0000000003521000-memory.dmp

Filesize
4KB

Download
memory/1520-243-0x000000007E720000-0x000000007E721000-memory.dmp

Filesize
4KB

Download
memory/1520-282-0x0000000003440000-0x000000000358A000-memory.dmp

Filesize
1.3MB

Download
memory/1520-147-0x0000000003440000-0x000000000358A000-memory.dmp

Filesize
1.3MB

Download
memory/1520-134-0x0000000003520000-0x0000000003521000-memory.dmp

Filesize
4KB

Download
memory/1520-150-0x0000000003440000-0x000000000358A000-memory.dmp

Filesize
1.3MB

Download
memory/1520-188-0x0000000003520000-0x0000000003521000-memory.dmp

Filesize
4KB

Download
memory/1520-130-0x0000000000000000-mapping.dmp

Download
memory/1656-119-0x0000000000D70000-0x0000000000D71000-memory.dmp

Filesize
4KB

Download
memory/1656-116-0x0000000000000000-mapping.dmp

Download
memory/1656-121-0x0000000005740000-0x0000000005741000-memory.dmp

Filesize
4KB

Download
memory/1656-122-0x0000000005690000-0x0000000005691000-memory.dmp

Filesize
4KB

Download
memory/1656-123-0x0000000005660000-0x0000000005663000-memory.dmp

Filesize
12KB

Download
memory/1656-127-0x0000000007960000-0x00000000079EC000-memory.dmp

Filesize
560KB

Download
memory/1656-151-0x0000000007B20000-0x0000000007B21000-memory.dmp

Filesize
4KB

Download
memory/1656-128-0x000000000C2B0000-0x000000000C2B1000-memory.dmp

Filesize
4KB

Download
memory/1656-141-0x0000000008B60000-0x0000000008B61000-memory.dmp

Filesize
4KB

Download
memory/1856-138-0x0000000004840000-0x0000000004841000-memory.dmp

Filesize
4KB

Download
memory/1856-173-0x0000000007A70000-0x0000000007A71000-memory.dmp

Filesize
4KB

Download
memory/1856-131-0x0000000000000000-mapping.dmp

Download
memory/1856-177-0x00000000080D0000-0x00000000080D1000-memory.dmp

Filesize
4KB

Download
memory/1856-186-0x0000000001220000-0x0000000001221000-memory.dmp

Filesize
4KB

Download
memory/1856-136-0x0000000001220000-0x0000000001221000-memory.dmp

Filesize
4KB

Download
memory/1856-167-0x0000000007C50000-0x0000000007C51000-memory.dmp

Filesize
4KB

Download
memory/1856-163-0x00000000079E0000-0x00000000079E1000-memory.dmp

Filesize
4KB

Download
memory/1856-158-0x00000000072B0000-0x00000000072B1000-memory.dmp

Filesize
4KB

Download
memory/1856-137-0x0000000001220000-0x0000000001221000-memory.dmp

Filesize
4KB

Download
memory/1856-146-0x0000000001360000-0x0000000001361000-memory.dmp

Filesize
4KB

Download
memory/1856-239-0x000000007F9A0000-0x000000007F9A1000-memory.dmp

Filesize
4KB

Download
memory/1856-142-0x00000000073B0000-0x00000000073B1000-memory.dmp

Filesize
4KB

Download
memory/1856-152-0x0000000007190000-0x0000000007191000-memory.dmp

Filesize
4KB

Download
memory/1856-148-0x0000000001362000-0x0000000001363000-memory.dmp

Filesize
4KB

Download
memory/1856-285-0x0000000001363000-0x0000000001364000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

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