5b896be764be5bb319b9071046710b59ef4173c22b982df851348664f2b34240

General

Target
UnlockAll.exe
Size 6.1MB
Sample260815-db116sysby
SHA256 5b896be764be5bb319b9071046710b59ef4173c22b982df851348664f2b34240
MD5 4d3bdc8f6402249bdb81394bb09d86f1
SHA1 cbbc746fcfd9cb079693e084062d3f8c207b38bf
SHA512 36fd5810b63b9a8686c7069a483ef3d52f21b237ddb8176df39ddb2fcc9039abb6168796ef4559e8bcc08ec8e02b313363334a1d3a9f220eca08dd30a1e8a7a5
SSDEEP 98304:rF5nW2MJV8BtL5QyhZM2DBzGIukHJNcO5QyvsDkfYVzUPzQSV9bJ0bdvb5lXZlMj:jnJYEt9Y2JKkIdySIPESnl0B5lcxN
TLSH
T1CA56336900B6BCEFC151C3BDB7A934084A22FA365F026D6B583F1743D9CB11DEB26859
MD5 SHA1 SHA512 SSDEEP TLSH

Score

9^/10

defense_evasion discovery execution themida trojan

Malware Config

Signatures

Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs

defense_evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	UnlockAll.exe

Checks BIOS information in registry 2 TTPs 2 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	UnlockAll.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	UnlockAll.exe

Themida packer 10 IoCs

Detects Themida, an advanced Windows software protection system.

themida

resource	yara_rule
behavioral1/memory/2568-0-0x0000000140000000-0x0000000141088000-memory.dmp	themida
behavioral1/memory/2568-1-0x0000000140000000-0x0000000141088000-memory.dmp	themida
behavioral1/memory/2568-2-0x0000000140000000-0x0000000141088000-memory.dmp	themida
behavioral1/memory/2568-4-0x0000000140000000-0x0000000141088000-memory.dmp	themida
behavioral1/memory/2568-3-0x0000000140000000-0x0000000141088000-memory.dmp	themida
behavioral1/memory/2568-5-0x0000000140000000-0x0000000141088000-memory.dmp	themida
behavioral1/memory/2568-6-0x0000000140000000-0x0000000141088000-memory.dmp	themida
behavioral1/memory/2568-7-0x0000000140000000-0x0000000141088000-memory.dmp	themida
behavioral1/memory/2568-8-0x0000000140000000-0x0000000141088000-memory.dmp	themida
behavioral1/memory/2568-9-0x0000000140000000-0x0000000141088000-memory.dmp	themida

Checks whether UAC is enabled 1 TTPs 1 IoCs

defense_evasion trojan

System Information Discovery

T1082

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

Suspicious use of NtSetInformationThreadHideFromDebugger 8 IoCs

pid	Process
2568	UnlockAll.exe
2568	UnlockAll.exe
2568	UnlockAll.exe
2568	UnlockAll.exe
2568	UnlockAll.exe
2568	UnlockAll.exe
2568	UnlockAll.exe
2568	UnlockAll.exe

Executes a command shell one-liner 1 TTPs 3 IoCs

Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

execution

Windows Command Shell

T1059.003

pid	Process
2760	cmd.exe
2820	cmd.exe
1216	cmd.exe

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 4 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
2820	cmd.exe
3236	PING.EXE
1216	cmd.exe
2600	PING.EXE

Runs ping.exe 1 TTPs 2 IoCs

Remote System Discovery

T1018

pid	Process
2600	PING.EXE
3236	PING.EXE

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 2568 wrote to memory of 1216	2568	UnlockAll.exe	89
PID 1216 wrote to memory of 2600	1216	cmd.exe	90
PID 2568 wrote to memory of 2760	2568	UnlockAll.exe	91
PID 2568 wrote to memory of 2820	2568	UnlockAll.exe	93
PID 2820 wrote to memory of 3236	2820	cmd.exe	94

C:\Users\Admin\AppData\Local\Temp\UnlockAll.exe
"C:\Users\Admin\AppData\Local\Temp\UnlockAll.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of WriteProcessMemory
PID:2568
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c ping -n 1 -w 100 10.127.0.1 > nul
  2⤵
  - Executes a command shell one-liner
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:1216
- - C:\Windows\system32\PING.EXE
    ping -n 1 -w 100 10.127.0.1
    3⤵
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:2600
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c cls
  2⤵
  - Executes a command shell one-liner
  PID:2760
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c ping -n 1 -w 100 10.127.0.1 > nul
  2⤵
  - Executes a command shell one-liner
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:2820
- - C:\Windows\system32\PING.EXE
    ping -n 1 -w 100 10.127.0.1
    3⤵
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:3236