3bc7953dd08ec98d2105dc72669b5773c091f180e9e8eb3c4eef2142923f0207

Analysis

max time kernel
90s
max time network
81s
platform
windows10-1703_x64
resource
win10-20240404-en
resource tags

arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system
submitted
22/05/2024, 16:42

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

NurseRAT release version.exe
Size

5.0MB
MD5

6f66e117b991ade94358fba1da7a7e0b
SHA1

f8d7a41d5cea9ecb852749724a75d27f0b77d421
SHA256

3bc7953dd08ec98d2105dc72669b5773c091f180e9e8eb3c4eef2142923f0207
SHA512

dc407eeddd9ee167da3b06f89df3f5a2edc7e0b63df8429aa56ad0acaf6ed9e93c66a33105f5d77337569e691297183227f8ffab93517b7f547a0e289d559759
SSDEEP

98304:RSGdJa9t5tl94y3oGNFzlAc/tpVQGHzsZpnGYNZinUDG+kt1Tg8/b5eBZ6/gVKet:hPstP4GNYSmMURbF7ktlLb5eztFmQh

Score

5^/10

Malware Config

Signatures

Suspicious use of NtSetInformationThreadHideFromDebugger 10 IoCs

pid	Process
1396	NurseRAT release version.exe
1396	NurseRAT release version.exe
1396	NurseRAT release version.exe
1396	NurseRAT release version.exe
1396	NurseRAT release version.exe
1396	NurseRAT release version.exe
1396	NurseRAT release version.exe
1396	NurseRAT release version.exe
1396	NurseRAT release version.exe
1396	NurseRAT release version.exe

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

System Information Discovery
T1082

Modifies registry class 35 IoCs

description	ioc	Process
Set value (data)	\REGISTRY\USER\S-1-5-21-3699363923-1875576828-3287151903-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = ffffffff	NurseRAT release version.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3699363923-1875576828-3287151903-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\NodeSlot = "1"	NurseRAT release version.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3699363923-1875576828-3287151903-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\Shell\SniffedFolderType = "Documents"	NurseRAT release version.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3699363923-1875576828-3287151903-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\{7D49D726-3C21-4F05-99AA-FDC2C9474656}\GroupView = "0"	NurseRAT release version.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3699363923-1875576828-3287151903-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\{7D49D726-3C21-4F05-99AA-FDC2C9474656}\GroupByKey:PID = "0"	NurseRAT release version.exe
Key created	\REGISTRY\USER\S-1-5-21-3699363923-1875576828-3287151903-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU	NurseRAT release version.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3699363923-1875576828-3287151903-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0 = 14001f50e04fd020ea3a6910a2d808002b30309d0000	NurseRAT release version.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3699363923-1875576828-3287151903-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\{7D49D726-3C21-4F05-99AA-FDC2C9474656}\IconSize = "16"	NurseRAT release version.exe
Key created	\REGISTRY\USER\S-1-5-21-3699363923-1875576828-3287151903-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell	NurseRAT release version.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3699363923-1875576828-3287151903-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\MRUListEx = 00000000ffffffff	NurseRAT release version.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3699363923-1875576828-3287151903-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots = 02	NurseRAT release version.exe
Key created	\REGISTRY\USER\S-1-5-21-3699363923-1875576828-3287151903-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1	NurseRAT release version.exe
Key created	\REGISTRY\USER\S-1-5-21-3699363923-1875576828-3287151903-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\{7D49D726-3C21-4F05-99AA-FDC2C9474656}	NurseRAT release version.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3699363923-1875576828-3287151903-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\{7D49D726-3C21-4F05-99AA-FDC2C9474656}\Mode = "4"	NurseRAT release version.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3699363923-1875576828-3287151903-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\{7D49D726-3C21-4F05-99AA-FDC2C9474656}\FFlags = "1092616257"	NurseRAT release version.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3699363923-1875576828-3287151903-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\{7D49D726-3C21-4F05-99AA-FDC2C9474656}\GroupByDirection = "1"	NurseRAT release version.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3699363923-1875576828-3287151903-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots = 020202	NurseRAT release version.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3699363923-1875576828-3287151903-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = 00000000ffffffff	NurseRAT release version.exe
Key created	\REGISTRY\USER\S-1-5-21-3699363923-1875576828-3287151903-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0	NurseRAT release version.exe
Key created	\REGISTRY\USER\S-1-5-21-3699363923-1875576828-3287151903-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0	NurseRAT release version.exe
Key created	\REGISTRY\USER\S-1-5-21-3699363923-1875576828-3287151903-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags	NurseRAT release version.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3699363923-1875576828-3287151903-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\{7D49D726-3C21-4F05-99AA-FDC2C9474656}\LogicalViewMode = "1"	NurseRAT release version.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3699363923-1875576828-3287151903-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\{7D49D726-3C21-4F05-99AA-FDC2C9474656}\ColInfo = 00000000000000000000000000000000fddfdffd100000000000000000000000040000001800000030f125b7ef471a10a5f102608c9eebac0a0000001001000030f125b7ef471a10a5f102608c9eebac0e0000007800000030f125b7ef471a10a5f102608c9eebac040000007800000030f125b7ef471a10a5f102608c9eebac0c00000050000000	NurseRAT release version.exe
Key created	\REGISTRY\USER\S-1-5-21-3699363923-1875576828-3287151903-1000_Classes\Local Settings	NurseRAT release version.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3699363923-1875576828-3287151903-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0 = 14002e80922b16d365937a46956b92703aca08af0000	NurseRAT release version.exe
Key created	\REGISTRY\USER\S-1-5-21-3699363923-1875576828-3287151903-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\Shell	NurseRAT release version.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3699363923-1875576828-3287151903-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\{7D49D726-3C21-4F05-99AA-FDC2C9474656}\GroupByKey:FMTID = "{00000000-0000-0000-0000-000000000000}"	NurseRAT release version.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3699363923-1875576828-3287151903-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\{7D49D726-3C21-4F05-99AA-FDC2C9474656}\FFlags = "1"	NurseRAT release version.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3699363923-1875576828-3287151903-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = 0000000001000000ffffffff	NurseRAT release version.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3699363923-1875576828-3287151903-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots	NurseRAT release version.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3699363923-1875576828-3287151903-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\MRUListEx = ffffffff	NurseRAT release version.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance	NurseRAT release version.exe
Key created	\REGISTRY\USER\S-1-5-21-3699363923-1875576828-3287151903-1000_Classes\WOW6432Node\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance	NurseRAT release version.exe
Key created	\REGISTRY\USER\S-1-5-21-3699363923-1875576828-3287151903-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg	NurseRAT release version.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3699363923-1875576828-3287151903-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\{7D49D726-3C21-4F05-99AA-FDC2C9474656}\Sort = 000000000000000000000000000000000100000030f125b7ef471a10a5f102608c9eebac0a00000001000000	NurseRAT release version.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1396	NurseRAT release version.exe

Suspicious use of FindShellTrayWindow 4 IoCs

pid	Process
1396	NurseRAT release version.exe
1396	NurseRAT release version.exe
1396	NurseRAT release version.exe
1396	NurseRAT release version.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
1396	NurseRAT release version.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1396	NurseRAT release version.exe
1396	NurseRAT release version.exe
1396	NurseRAT release version.exe
1396	NurseRAT release version.exe

C:\Users\Admin\AppData\Local\Temp\NurseRAT release version.exe
"C:\Users\Admin\AppData\Local\Temp\NurseRAT release version.exe"
1⤵
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Modifies registry class
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of SetWindowsHookEx
PID:1396

C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
1⤵
PID:1908

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/1396-0-0x00000000012B0000-0x0000000001EAE000-memory.dmp

Filesize
12.0MB

Download
memory/1396-1-0x0000000073F11000-0x0000000073F12000-memory.dmp

Filesize
4KB

Download
memory/1396-2-0x0000000073F10000-0x00000000744C0000-memory.dmp

Filesize
5.7MB

Download
memory/1396-3-0x0000000073F10000-0x00000000744C0000-memory.dmp

Filesize
5.7MB

Download
memory/1396-4-0x0000000073F10000-0x00000000744C0000-memory.dmp

Filesize
5.7MB

Download
memory/1396-5-0x0000000073F10000-0x00000000744C0000-memory.dmp

Filesize
5.7MB

Download
memory/1396-7-0x00000000012B0000-0x0000000001EAE000-memory.dmp

Filesize
12.0MB

Download
memory/1396-8-0x0000000073F10000-0x00000000744C0000-memory.dmp

Filesize
5.7MB

Download
memory/1396-10-0x0000000073F10000-0x00000000744C0000-memory.dmp

Filesize
5.7MB

Download
memory/1396-11-0x0000000073F10000-0x00000000744C0000-memory.dmp

Filesize
5.7MB

Download
memory/1396-12-0x0000000073F10000-0x00000000744C0000-memory.dmp

Filesize
5.7MB

Download