nanocore | d09b1d9588c03e806ed27e7fe6bee63af7da8d332e719e5dc4579278722e6e99

Resubmissions

23-06-2024 20:43

240623-zhzmksvbnp 10

15-06-2024 09:17

240615-k8793svfqg 10

Analysis

max time kernel
55s
max time network
63s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
23-06-2024 20:43

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General

Target

randomfile.exe
Size

210KB
MD5

004d0d489f1547b76aa91465a2dbc99f
SHA1

c767780d3a0bf1edeead92605ce849a78f3041b6
SHA256

d09b1d9588c03e806ed27e7fe6bee63af7da8d332e719e5dc4579278722e6e99
SHA512

07a90505965d89f9af718d7b15741b5064766dbf599219528ff1c59e70f99338904273f931b25728ead3dc65de41c8ed9cf43b18cca58d62bfc7b856d6cf9ccc
SSDEEP

6144:wLV6Bta6dtJmakIM5j100ody3ydprVaaQE:wLV6Btpmk+G0l3faQE

Score

10^/10

nanocore evasion keylogger spyware stealer trojan

Malware Config

Signatures

NanoCore
NanoCore is a remote access tool (RAT) with a variety of capabilities.
keylogger trojan stealer spyware nanocore
Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

randomfile.exe

description ioc process

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

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

Checks SCSI registry key(s) 3 TTPs 3 IoCs

SCSI information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

taskmgr.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000	taskmgr.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000\Properties\{b725f130-47ef-101a-a5f1-02608c9eebac}\000A	taskmgr.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000\FriendlyName	taskmgr.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence execution

Scheduled Task
T1053.005

Processes:

schtasks.exe

pid process

1764 schtasks.exe

pid	process
1764	schtasks.exe

Suspicious behavior: EnumeratesProcesses 25 IoCs

Processes:

randomfile.exetaskmgr.exe

pid	process
2304	randomfile.exe
2304	randomfile.exe
2304	randomfile.exe
2304	randomfile.exe
2304	randomfile.exe
2304	randomfile.exe
2304	randomfile.exe
2304	randomfile.exe
4492	taskmgr.exe
4492	taskmgr.exe
2304	randomfile.exe
2304	randomfile.exe
2304	randomfile.exe
2304	randomfile.exe
4492	taskmgr.exe
4492	taskmgr.exe
4492	taskmgr.exe
4492	taskmgr.exe
4492	taskmgr.exe
4492	taskmgr.exe
4492	taskmgr.exe
2304	randomfile.exe
2304	randomfile.exe
2304	randomfile.exe
2304	randomfile.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

randomfile.exe

pid process

2304 randomfile.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

Processes:

randomfile.exetaskmgr.exe

description	pid	process
Token: SeDebugPrivilege	2304	randomfile.exe
Token: SeDebugPrivilege	4492	taskmgr.exe
Token: SeSystemProfilePrivilege	4492	taskmgr.exe
Token: SeCreateGlobalPrivilege	4492	taskmgr.exe
Token: 33	4492	taskmgr.exe
Token: SeIncBasePriorityPrivilege	4492	taskmgr.exe

Suspicious use of FindShellTrayWindow 33 IoCs

Processes:

taskmgr.exe

pid	process
4492	taskmgr.exe
4492	taskmgr.exe
4492	taskmgr.exe
4492	taskmgr.exe
4492	taskmgr.exe
4492	taskmgr.exe
4492	taskmgr.exe
4492	taskmgr.exe
4492	taskmgr.exe
4492	taskmgr.exe
4492	taskmgr.exe
4492	taskmgr.exe
4492	taskmgr.exe
4492	taskmgr.exe
4492	taskmgr.exe
4492	taskmgr.exe
4492	taskmgr.exe
4492	taskmgr.exe
4492	taskmgr.exe
4492	taskmgr.exe
4492	taskmgr.exe
4492	taskmgr.exe
4492	taskmgr.exe
4492	taskmgr.exe
4492	taskmgr.exe
4492	taskmgr.exe
4492	taskmgr.exe
4492	taskmgr.exe
4492	taskmgr.exe
4492	taskmgr.exe
4492	taskmgr.exe
4492	taskmgr.exe
4492	taskmgr.exe

Suspicious use of SendNotifyMessage 33 IoCs

Processes:

taskmgr.exe

pid	process
4492	taskmgr.exe
4492	taskmgr.exe
4492	taskmgr.exe
4492	taskmgr.exe
4492	taskmgr.exe
4492	taskmgr.exe
4492	taskmgr.exe
4492	taskmgr.exe
4492	taskmgr.exe
4492	taskmgr.exe
4492	taskmgr.exe
4492	taskmgr.exe
4492	taskmgr.exe
4492	taskmgr.exe
4492	taskmgr.exe
4492	taskmgr.exe
4492	taskmgr.exe
4492	taskmgr.exe
4492	taskmgr.exe
4492	taskmgr.exe
4492	taskmgr.exe
4492	taskmgr.exe
4492	taskmgr.exe
4492	taskmgr.exe
4492	taskmgr.exe
4492	taskmgr.exe
4492	taskmgr.exe
4492	taskmgr.exe
4492	taskmgr.exe
4492	taskmgr.exe
4492	taskmgr.exe
4492	taskmgr.exe
4492	taskmgr.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

randomfile.exe

description	pid	process	target process
PID 2304 wrote to memory of 1764	2304	randomfile.exe	schtasks.exe
PID 2304 wrote to memory of 1764	2304	randomfile.exe	schtasks.exe
PID 2304 wrote to memory of 1764	2304	randomfile.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\randomfile.exe
"C:\Users\Admin\AppData\Local\Temp\randomfile.exe"
1⤵
- Checks whether UAC is enabled
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2304

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "SMTP Subsystem" /xml "C:\Users\Admin\AppData\Local\Temp\tmp5CA2.tmp"
2⤵
- Scheduled Task/Job: Scheduled Task
PID:1764

C:\Windows\system32\taskmgr.exe
"C:\Windows\system32\taskmgr.exe" /7
1⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:4492

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=3976 --field-trial-handle=2900,i,14549994492153927475,12895178890800740987,262144 --variations-seed-version /prefetch:8
1⤵
PID:4572

Network

MITRE ATT&CK Matrix ATT&CK v13

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp5CA2.tmp
Filesize
1KB

MD5
5988267d30e4536e048a71ebf6ce2287

SHA1
908ffb7e1ede3b4861251acc3111b13d7673cc03

SHA256
20a81a8b3d82762db94c240a16c3a0728370dae1bbee6ab98339aac706002ed1

SHA512
dea6b7c07570437197758a1b37710689d77a4b358f5bc39515cb7ace44590c2a58767708f8cac1570e1d0c808dcc48ecdd905809772b891ee9ce27ceba866748

Download Submit
memory/2304-0-0x00000000750F2000-0x00000000750F3000-memory.dmp

Filesize
4KB

Download
memory/2304-1-0x00000000750F0000-0x00000000756A1000-memory.dmp

Filesize
5.7MB

Download
memory/2304-2-0x00000000750F0000-0x00000000756A1000-memory.dmp

Filesize
5.7MB

Download
memory/2304-7-0x00000000750F0000-0x00000000756A1000-memory.dmp

Filesize
5.7MB

Download
memory/2304-8-0x00000000750F2000-0x00000000750F3000-memory.dmp

Filesize
4KB

Download
memory/2304-9-0x00000000750F0000-0x00000000756A1000-memory.dmp

Filesize
5.7MB

Download
memory/2304-23-0x00000000750F0000-0x00000000756A1000-memory.dmp

Filesize
5.7MB

Download
memory/4492-11-0x0000025E233E0000-0x0000025E233E1000-memory.dmp

Filesize
4KB

Download
memory/4492-10-0x0000025E233E0000-0x0000025E233E1000-memory.dmp

Filesize
4KB

Download
memory/4492-22-0x0000025E233E0000-0x0000025E233E1000-memory.dmp

Filesize
4KB

Download
memory/4492-21-0x0000025E233E0000-0x0000025E233E1000-memory.dmp

Filesize
4KB

Download
memory/4492-20-0x0000025E233E0000-0x0000025E233E1000-memory.dmp

Filesize
4KB

Download
memory/4492-19-0x0000025E233E0000-0x0000025E233E1000-memory.dmp

Filesize
4KB

Download
memory/4492-18-0x0000025E233E0000-0x0000025E233E1000-memory.dmp

Filesize
4KB

Download
memory/4492-17-0x0000025E233E0000-0x0000025E233E1000-memory.dmp

Filesize
4KB

Download
memory/4492-16-0x0000025E233E0000-0x0000025E233E1000-memory.dmp

Filesize
4KB

Download
memory/4492-12-0x0000025E233E0000-0x0000025E233E1000-memory.dmp

Filesize
4KB

Download