725b093c07d1449e4651c67fa547d47ea5397a33bc670758980ae97eadb4e9eb

Analysis

max time kernel
118s
max time network
128s
platform
windows7_x64
resource
win7-20231020-en
resource tags

arch:x64arch:x86image:win7-20231020-enlocale:en-usos:windows7-x64system
submitted
07/11/2023, 14:38

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General

Target

Speccy.exe
Size

5.0MB
MD5

5ceba11afa3cb63e73320786dc0652ca
SHA1

d6d0971807f15b2c80d3164353edd00629c8ded5
SHA256

fdea8741ef3af7375ae7a10564b863a01b3646a8c427249e183646409f9166d2
SHA512

933d2b749e671745aae64fe29b0ec61c4070a3367f316fe78218e16ebcd3659f1ad46d17f543ac121d7c0c3140fd939b1aec0dca2883250f20ca69c00fe07c48
SSDEEP

98304:yHMNlpept3gSuDdFeznGkcBLwX1Pge/7yhg0:UMoptYDdFhkp7w

Score

6^/10

bootkit persistence

Malware Config

Signatures

Enumerates connected drives 3 TTPs 23 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\R:	speccy64.exe
File opened (read-only)	\??\T:	speccy64.exe
File opened (read-only)	\??\W:	speccy64.exe
File opened (read-only)	\??\Z:	speccy64.exe
File opened (read-only)	\??\I:	speccy64.exe
File opened (read-only)	\??\L:	speccy64.exe
File opened (read-only)	\??\M:	speccy64.exe
File opened (read-only)	\??\O:	speccy64.exe
File opened (read-only)	\??\V:	speccy64.exe
File opened (read-only)	\??\A:	speccy64.exe
File opened (read-only)	\??\G:	speccy64.exe
File opened (read-only)	\??\J:	speccy64.exe
File opened (read-only)	\??\N:	speccy64.exe
File opened (read-only)	\??\X:	speccy64.exe
File opened (read-only)	\??\K:	speccy64.exe
File opened (read-only)	\??\P:	speccy64.exe
File opened (read-only)	\??\S:	speccy64.exe
File opened (read-only)	\??\U:	speccy64.exe
File opened (read-only)	\??\Y:	speccy64.exe
File opened (read-only)	\??\B:	speccy64.exe
File opened (read-only)	\??\E:	speccy64.exe
File opened (read-only)	\??\H:	speccy64.exe
File opened (read-only)	\??\Q:	speccy64.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	speccy64.exe

Drops file in Windows directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\INF\setupapi.app.log	speccy64.exe
File opened for modification	C:\Windows\setupact.log	speccy64.exe
File opened for modification	C:\Windows\setuperr.log	speccy64.exe

Suspicious behavior: EnumeratesProcesses 21 IoCs

pid	Process
2828	speccy64.exe
2828	speccy64.exe
2828	speccy64.exe
2828	speccy64.exe
2828	speccy64.exe
2828	speccy64.exe
2828	speccy64.exe
2828	speccy64.exe
2828	speccy64.exe
2828	speccy64.exe
2828	speccy64.exe
2828	speccy64.exe
2828	speccy64.exe
2828	speccy64.exe
2828	speccy64.exe
2828	speccy64.exe
2828	speccy64.exe
2828	speccy64.exe
2828	speccy64.exe
2828	speccy64.exe
2828	speccy64.exe

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
472	Process not Found

Suspicious use of AdjustPrivilegeToken 7 IoCs

description	pid	Process
Token: SeRestorePrivilege	2828	speccy64.exe
Token: SeRestorePrivilege	2828	speccy64.exe
Token: SeRestorePrivilege	2828	speccy64.exe
Token: SeRestorePrivilege	2828	speccy64.exe
Token: SeRestorePrivilege	2828	speccy64.exe
Token: SeRestorePrivilege	2828	speccy64.exe
Token: SeRestorePrivilege	2828	speccy64.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
2828	speccy64.exe
2828	speccy64.exe

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
2828	speccy64.exe
2828	speccy64.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2828	speccy64.exe
2828	speccy64.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2628 wrote to memory of 2828	2628	Speccy.exe	28
PID 2628 wrote to memory of 2828	2628	Speccy.exe	28
PID 2628 wrote to memory of 2828	2628	Speccy.exe	28
PID 2628 wrote to memory of 2828	2628	Speccy.exe	28
PID 2828 wrote to memory of 3040	2828	speccy64.exe	31
PID 2828 wrote to memory of 3040	2828	speccy64.exe	31
PID 2828 wrote to memory of 3040	2828	speccy64.exe	31

C:\Users\Admin\AppData\Local\Temp\Speccy.exe
"C:\Users\Admin\AppData\Local\Temp\Speccy.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2628
- C:\Users\Admin\AppData\Local\Temp\speccy64.exe
  "C:\Users\Admin\AppData\Local\Temp\Speccy.exe"
  2⤵
  - Enumerates connected drives
  - Writes to the Master Boot Record (MBR)
  - Drops file in Windows directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2828
- - C:\Program Files\Java\jre7\bin\java.exe
    "C:\Program Files\Java\jre7\bin\java" -version
    3⤵
    PID:3040

C:\Windows\system32\wbem\WmiApSrv.exe
C:\Windows\system32\wbem\WmiApSrv.exe
1⤵
PID:1644

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

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2828-0-0x0000000000090000-0x0000000000091000-memory.dmp

Filesize
4KB

Download
memory/2828-10-0x0000000000090000-0x0000000000091000-memory.dmp

Filesize
4KB

Download
memory/3040-7-0x00000000020F0000-0x00000000050F0000-memory.dmp

Filesize
48.0MB

Download
memory/3040-17-0x00000000020F0000-0x00000000050F0000-memory.dmp

Filesize
48.0MB

Download
memory/3040-18-0x0000000000320000-0x0000000000321000-memory.dmp

Filesize
4KB

Download