1a662d847f16850658216634eda7c98ce06b0c861017de16e8dc8ff12a412abe

Analysis

max time kernel
149s
max time network
123s
platform
windows7_x64
resource
win7-20240705-en
resource tags

arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
submitted
23/07/2024, 15:15

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

Remote Services: SMB/Windows Admin Shares 1 TTPs 1 IoCs

Adversaries may use Valid Accounts to interact with a remote network share using Server Message Block (SMB).

lateral_movement

SMB/Windows Admin Shares

T1021.002

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\LanmanServer\Parameters\NullSessionPipes	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 4 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
File opened for modification	C:\Windows\WindowsUpdate.log	speccy64.exe

System Location Discovery: System Language Discovery 1 TTPs 1 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	Speccy.exe

Suspicious behavior: EnumeratesProcesses 22 IoCs

pid	Process
2724	speccy64.exe
2724	speccy64.exe
2724	speccy64.exe
2724	speccy64.exe
2724	speccy64.exe
2724	speccy64.exe
2724	speccy64.exe
2724	speccy64.exe
2724	speccy64.exe
2724	speccy64.exe
2724	speccy64.exe
2724	speccy64.exe
2724	speccy64.exe
2724	speccy64.exe
2724	speccy64.exe
2724	speccy64.exe
2724	speccy64.exe
2724	speccy64.exe
2724	speccy64.exe
2724	speccy64.exe
2724	speccy64.exe
2724	speccy64.exe

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
476	Process not Found

Suspicious use of AdjustPrivilegeToken 11 IoCs

description	pid	Process
Token: SeRestorePrivilege	2724	speccy64.exe
Token: SeRestorePrivilege	2724	speccy64.exe
Token: SeRestorePrivilege	2724	speccy64.exe
Token: SeRestorePrivilege	2724	speccy64.exe
Token: SeRestorePrivilege	2724	speccy64.exe
Token: SeRestorePrivilege	2724	speccy64.exe
Token: SeRestorePrivilege	2724	speccy64.exe
Token: SeShutdownPrivilege	2724	speccy64.exe
Token: SeDebugPrivilege	2724	speccy64.exe
Token: SeShutdownPrivilege	2724	speccy64.exe
Token: SeShutdownPrivilege	2724	speccy64.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
2724	speccy64.exe
2724	speccy64.exe

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
2724	speccy64.exe
2724	speccy64.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2724	speccy64.exe
2724	speccy64.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 2396 wrote to memory of 2724	2396	Speccy.exe	30
PID 2396 wrote to memory of 2724	2396	Speccy.exe	30
PID 2396 wrote to memory of 2724	2396	Speccy.exe	30
PID 2396 wrote to memory of 2724	2396	Speccy.exe	30
PID 2724 wrote to memory of 2576	2724	speccy64.exe	32
PID 2724 wrote to memory of 2576	2724	speccy64.exe	32
PID 2724 wrote to memory of 2576	2724	speccy64.exe	32
PID 2724 wrote to memory of 448	2724	speccy64.exe	34
PID 2724 wrote to memory of 448	2724	speccy64.exe	34
PID 2724 wrote to memory of 448	2724	speccy64.exe	34
PID 2724 wrote to memory of 2940	2724	speccy64.exe	36
PID 2724 wrote to memory of 2940	2724	speccy64.exe	36
PID 2724 wrote to memory of 2940	2724	speccy64.exe	36

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\Speccy.exe
"C:\Users\Admin\AppData\Local\Temp\Speccy.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2396
- C:\Users\Admin\AppData\Local\Temp\speccy64.exe
  "C:\Users\Admin\AppData\Local\Temp\Speccy.exe"
  2⤵
  - Enumerates connected drives
  - Remote Services: SMB/Windows Admin Shares
  - 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:2724
- - C:\Program Files\Java\jre7\bin\java.exe
    "C:\Program Files\Java\jre7\bin\java" -version
    3⤵
    PID:2576
- - C:\Program Files\Java\jdk1.7.0_80\bin\java.exe
    "C:\Program Files\Java\jdk1.7.0_80\bin\java" -version
    3⤵
    PID:448
- - C:\Windows\system32\secedit.exe
    /export /cfg "C:\Users\Admin\AppData\Local\Temp\spc_se.txt" /quiet /areas SECURITYPOLICY
    3⤵
    PID:2940

C:\Windows\system32\wbem\WmiApSrv.exe
C:\Windows\system32\wbem\WmiApSrv.exe
1⤵
PID:2168

C:\Windows\system32\wbem\WmiApSrv.exe
C:\Windows\system32\wbem\WmiApSrv.exe
1⤵
PID:1964

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

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Remote Services

T1021

SMB/Windows Admin Shares

T1021.002

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\sce32829.tmp

Filesize
12KB

MD5
dc505882bcd8807dbe21ff2ba0e48826

SHA1
83b732cfe3fa5830779c0a1be554e01deda066d1

SHA256
dd280e08bfad952f40388b31a2641bf9888f2ace821e39d9bbceac3f487ff134

SHA512
4ff9a96ba2a08e249d2cd43bc7d1f8d8f7f378189f5fd9b48ed0079be16ad0e57add876c2a964c69be429935b8f7df9b8f380bfd8a0e35ad4911e8c1cb2453e4

Download Submit
memory/448-23-0x0000000000440000-0x0000000000441000-memory.dmp

Filesize
4KB

Download
memory/2576-13-0x0000000000350000-0x0000000000351000-memory.dmp

Filesize
4KB

Download
memory/2724-0-0x0000000000120000-0x0000000000121000-memory.dmp

Filesize
4KB

Download
memory/2724-42-0x0000000000120000-0x0000000000121000-memory.dmp

Filesize
4KB

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