3845ebbb8a0af759606ccf0533166fccdab3b842274cabcb292719da9cb5694a

Analysis

max time kernel
91s
max time network
99s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
15-09-2024 00:24

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General

Target

startup.exe
Size

2.6MB
MD5

ecafde6855179b29d166bc3396f4fc12
SHA1

5a882dde362d7690fb6a3533cefa03663abd09f2
SHA256

3845ebbb8a0af759606ccf0533166fccdab3b842274cabcb292719da9cb5694a
SHA512

8110e43384d7c09a59499cd153eb4311ee96d941f793d7c7f853a94b50d5efba5fe87c94150c1d68f8d80d25657e1d33e47a6644d932de8b3da661024809e7e0
SSDEEP

49152:S47Nlau3ZvJvDr4sGszFPpxoJswX8aVGx0Cng4BKNJ8Srga6pxX:SeNlau39JNGyzxEsk5ozJSrn63

Score

7^/10

bootkit discovery evasion persistence trojan

Malware Config

Signatures

Loads dropped DLL 2 IoCs

pid	Process
1640	startup.exe
5004	startup.exe

Checks for any installed AV software in registry 1 TTPs 64 IoCs

Security Software Discovery

T1518.001

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\SOFTWARE\KasperskyLab\IEOverride\RtfConverterFlags	startup.exe
Key opened	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\SOFTWARE\KasperskyLab\IEOverride\Main	startup.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\SOFTWARE\KasperskyLab\IEOverride\Main\XMLHTTP	startup.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\SOFTWARE\KasperskyLab\IEOverride\Main\DOMStorage	startup.exe
Key created	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\SOFTWARE\KasperskyLab\IEOverride\Main	startup.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\SOFTWARE\KasperskyLab\IEOverride\Main\Anchor Underline	startup.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\SOFTWARE\KasperskyLab\IEOverride\Main\Move System Caret	startup.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\SOFTWARE\KasperskyLab\IEOverride\Main\JScriptProfileCacheEventDelay	startup.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\SOFTWARE\KasperskyLab\IEOverride\Main\CSS_Compat	startup.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\SOFTWARE\KasperskyLab\IEOverride\Main\Print_Background	startup.exe
Key opened	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\SOFTWARE\KasperskyLab\IEOverride\Viewport	startup.exe
Key opened	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\SOFTWARE\KasperskyLab\IEOverride\MenuExt	startup.exe
Key created	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\Software\KasperskyLab\IEOverride\Main	startup.exe
Key created	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\SOFTWARE\KasperskyLab	startup.exe
Key queried	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\SOFTWARE\KasperskyLab	startup.exe
Key queried	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\SOFTWARE\KasperskyLab\IEOverride\Main	startup.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\SOFTWARE\KasperskyLab\IEOverride\Main\Disable Script Debugger	startup.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\SOFTWARE\KasperskyLab\IEOverride\Main\Anchor Underline	startup.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\SOFTWARE\KasperskyLab\IEOverride\Main\Move System Caret	startup.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\SOFTWARE\KasperskyLab\IEOverride\Main\Q300829	startup.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\SOFTWARE\KasperskyLab\IEOverride\Main\Use_DlgBox_Colors	startup.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\SOFTWARE\KasperskyLab\IEOverride\Main\Play_Animations	startup.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\SOFTWARE\KasperskyLab\IEOverride\Main\XMLHTTP	startup.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\SOFTWARE\KasperskyLab\IEOverride\Main\Enable AutoImageResize	startup.exe
Key opened	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\SOFTWARE\KasperskyLab\IEOverride\Settings	startup.exe
Key opened	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\SOFTWARE\KasperskyLab\IEOverride\MenuExt	startup.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\SOFTWARE\KasperskyLab\IEOverride\Main\DisableScriptDebuggerIE	startup.exe
Key created	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\Software\KasperskyLab\IEOverride\Main	startup.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\SOFTWARE\KasperskyLab\IEOverride\Main\Enable Browser Extensions = "no"	startup.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\SOFTWARE\KasperskyLab\IEOverride\Main\Disable Diagnostics Mode	startup.exe
Key queried	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\SOFTWARE\KasperskyLab\IEOverride	startup.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\SOFTWARE\KasperskyLab\IEOverride\Main\XDomainRequest	startup.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\SOFTWARE\KasperskyLab\IEOverride\Main\Expand Alt Text	startup.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\SOFTWARE\KasperskyLab\IEOverride\Main\DOMStorage	startup.exe
Key opened	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\SOFTWARE\KasperskyLab\IEOverride\AdvancedOptions\DISAMBIGUATION	startup.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\SOFTWARE\KasperskyLab\IEOverride\Main\Cleanup HTCs	startup.exe
Key created	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\SOFTWARE\KasperskyLab\IEOverride	startup.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\SOFTWARE\KasperskyLab\IEOverride\Main\UseSWRender = "1"	startup.exe
Key opened	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\SOFTWARE\KasperskyLab\IEOverride\Main	startup.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\SOFTWARE\KasperskyLab\IEOverride\Main\Cleanup HTCs	startup.exe
Key queried	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\SOFTWARE\KasperskyLab\IEOverride\Main	startup.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\SOFTWARE\KasperskyLab\IEOverride\Main\UseSWRender = "1"	startup.exe
Key opened	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\Software\KasperskyLab\IEOverride	startup.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\SOFTWARE\KasperskyLab\IEOverride\Main\Enable AutoImageResize	startup.exe
Key opened	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\SOFTWARE\KasperskyLab\IEOverride\Viewport	startup.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\SOFTWARE\KasperskyLab\IEOverride\Main\UseHR	startup.exe
Key opened	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\SOFTWARE\KasperskyLab\IEOverride\Settings	startup.exe
Key opened	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\SOFTWARE\KasperskyLab\IEOverride\Text Scaling	startup.exe
Key queried	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\SOFTWARE\KasperskyLab\IEOverride	startup.exe
Key opened	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\SOFTWARE\KasperskyLab\IEOverride\Styles	startup.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\SOFTWARE\KasperskyLab\IEOverride\Main\Use_DlgBox_Colors	startup.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\SOFTWARE\KasperskyLab\IEOverride\Main\Show image placeholders	startup.exe
Key opened	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\SOFTWARE\KasperskyLab\IEOverride\International\Scripts	startup.exe
Key opened	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\Software\KasperskyLab\IEOverride	startup.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\SOFTWARE\KasperskyLab\IEOverride\Main\SmoothScroll	startup.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\SOFTWARE\KasperskyLab\IEOverride\Main\UseHR	startup.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\SOFTWARE\KasperskyLab\IEOverride\Main\XDomainRequest	startup.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\SOFTWARE\KasperskyLab\IEOverride\Main\SmoothScroll	startup.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\SOFTWARE\KasperskyLab\IEOverride\Main\Play_Background_Sounds	startup.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\SOFTWARE\KasperskyLab\IEOverride\Main\Show image placeholders	startup.exe
Key opened	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\SOFTWARE\KasperskyLab\IEOverride\International	startup.exe
Key opened	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\SOFTWARE\KasperskyLab\IEOverride\International\Scripts\4	startup.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\SOFTWARE\KasperskyLab\IEOverride\Main\Display Inline Videos	startup.exe
Key opened	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\SOFTWARE\KasperskyLab\IEOverride\Larger Hit Test	startup.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

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

Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

Bootkits write to the MBR to gain persistence at a level below the operating system.

bootkit persistence

Bootkit

T1542.003

description	ioc	Process
File opened for modification	\??\PhysicalDrive0	startup.exe

Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs

Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\VBoxMiniRdrDN	startup.exe

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	startup.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	startup.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
1640	startup.exe
1640	startup.exe
1640	startup.exe
1640	startup.exe
1640	startup.exe
1640	startup.exe
5004	startup.exe
5004	startup.exe
5004	startup.exe
5004	startup.exe

Suspicious use of SetWindowsHookEx 17 IoCs

pid	Process
1640	startup.exe
1640	startup.exe
1640	startup.exe
1640	startup.exe
1640	startup.exe
1640	startup.exe
1640	startup.exe
1640	startup.exe
1640	startup.exe
5004	startup.exe
5004	startup.exe
5004	startup.exe
5004	startup.exe
5004	startup.exe
5004	startup.exe
5004	startup.exe
5004	startup.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1640 wrote to memory of 5004	1640	startup.exe	90
PID 1640 wrote to memory of 5004	1640	startup.exe	90
PID 1640 wrote to memory of 5004	1640	startup.exe	90

C:\Users\Admin\AppData\Local\Temp\startup.exe
"C:\Users\Admin\AppData\Local\Temp\startup.exe"
1⤵
- Loads dropped DLL
- Checks for any installed AV software in registry
- Checks whether UAC is enabled
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1640
- C:\Users\Admin\AppData\Local\Temp\startup.exe
  C:\Users\Admin\AppData\Local\Temp\startup.exe -sendDump="C:\Users\Admin\AppData\Local\Temp/KAVINST.21.3.10.391_09.15_00.24_1640.SETUP.full.dmp"
  2⤵
  - Loads dropped DLL
  - Checks for any installed AV software in registry
  - Writes to the Master Boot Record (MBR)
  - Checks for VirtualBox DLLs, possible anti-VM trick
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of SetWindowsHookEx
  PID:5004

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Pre-OS Boot

T1542

Bootkit

T1542.003

Privilege Escalation

Defense Evasion

Pre-OS Boot

T1542

Bootkit

T1542.003

Credential Access

Discovery

Software Discovery

T1518

Security Software Discovery

T1518.001

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\E2CB6F9E8F27FE11FB9DADE2A382ACB1\setup.dll

Filesize
5.1MB

MD5
6b439a6b87e6f6e30241cb64466087ef

SHA1
63799d31bde76653677d5dd647d98488136177c6

SHA256
0a4406ae8ca4c397e63a686b5be680b7dec0d7006b9ab65dce22372955ed9644

SHA512
70c1e61c30881ed22529ef25e61b3958185982a0b569f070a58b2614bb1ec2958cab5e47a46afaa86ef9d8140791dda59507fa5a5a34b0092b03726e77b88187

Download Submit
C:\Users\Admin\AppData\Local\Temp\E9F6BC2F-72F8-11EF-BFD9-DA2E3A28CA1B\check_new_version.html

Filesize
1KB

MD5
51dc1945e2d325f9451a1b6898282bc2

SHA1
bac3c11dc11dff02035080e6f67eb2298db989dc

SHA256
1ad0e2ac0603724a2335dd6c2044465ebfdc5b5b350d370eb4e5e0a02959a0f5

SHA512
2f48b53d10151414104fe68bae3647fc2d021dcb5562b212e185f93cc2cd0430f56d68fb2e9ac8a2356551c4f703f8da3228573d32b2ef80c698eac3b5fc9262

Download Submit
C:\Users\Admin\AppData\Local\Temp\EBCC6339-72F8-11EF-BFD9-DA2E3A28CA1B\install_error_send_logs_page.html

Filesize
2KB

MD5
cb59c7593555ec7511f0ce6049c95cfa

SHA1
09044dd6baf785ce6484b4a861b741990629db45

SHA256
9da9c7cea5cc920c9bd110fd4e2ec0b02d91e7bebcc71a95f5efd3bac3d99468

SHA512
835b945b061188d95e8cddf91ea06109da2caffb79abca742cfa5aa5b84a83e5f82b2a624f7067caf026f56cd997c0c9ab9d1ac09c016ebd5301ace36f080ae2

Download Submit
C:\Users\Admin\AppData\Local\Temp\EBCC6339-72F8-11EF-BFD9-DA2E3A28CA1B\jquery-1.12.4.min.js

Filesize
94KB

MD5
618538b4ab9639d444e962729a927f15

SHA1
dacc1f76630a9708add066819b1aabf8dce01056

SHA256
27d92130c0321dad5a03760fd5ac98a3d04ed4c94d88418fe6d50da1f7fc5cbe

SHA512
bcb6754ea246939a19a917cc0b810e1753c1b0f1a8b1b7e652128ef15dee4fc79111e4d88fe12f9188449a307e82240d0261af402d783428edfe5785c860372d

Download Submit
C:\Users\Admin\AppData\Local\Temp\EBCC6339-72F8-11EF-BFD9-DA2E3A28CA1B\jquery.custom_select.min.js

Filesize
5KB

MD5
d2c620c462b75696eea1fb22fb23602a

SHA1
900f78eb8e1103be1535af5e76d1bed686cdcce3

SHA256
dd678d32073078552e0e2c35eed78f16cc8d6e8662d4734518561a1b183f775c

SHA512
40e1180b63b328c22cfacc40529cbda2409a54fbbbd5813fcc5f8dcdf95ad7fcd74ea96382e3a2d0bcfed9e68c208f7733b7c630edee7e2013c9a5459091c02c

Download Submit
C:\Users\Admin\AppData\Local\Temp\EBCC6339-72F8-11EF-BFD9-DA2E3A28CA1B\kis-script.js

Filesize
306B

MD5
026425ccbf4417eefa444285707132ef

SHA1
a953b9f6781d4b6daa2eedc0c45d358f2a472370

SHA256
97e5f342227ea23c27c1b660f111847fcdd9d7b23c1d248c733a36f983fd7f04

SHA512
a266e2f9f10620347f0d05d081362086e81c67fb7c5f4a74c26cca54686f6afb2f2933b1f7afb6d9c96382ff4e4e3cf2f0f38cdd162175cdefccb5909b1aa6c3

Download Submit
memory/1640-0-0x0000000077E00000-0x0000000077E10000-memory.dmp

Filesize
64KB

Download
memory/1640-2-0x0000000077E00000-0x0000000077E10000-memory.dmp

Filesize
64KB

Download
memory/1640-1-0x0000000077E00000-0x0000000077E10000-memory.dmp

Filesize
64KB

Download
memory/1640-3-0x0000000077CB2000-0x0000000077CB3000-memory.dmp

Filesize
4KB

Download
memory/5004-39-0x0000000077E10000-0x0000000077E20000-memory.dmp

Filesize
64KB

Download
memory/5004-38-0x0000000077E10000-0x0000000077E20000-memory.dmp

Filesize
64KB

Download
memory/5004-40-0x0000000077E10000-0x0000000077E20000-memory.dmp

Filesize
64KB

Download