05b0a29f16f196a36944c94487032c1d9b9acc6bee8839457d730f4053f68e29

Resubmissions

21-02-2021 08:21

210221-rl1t1aatqa 10

17-02-2021 09:16

210217-4cyttz4b1j 10

Analysis

max time kernel
149s
max time network
134s
platform
windows10_x64
resource
win10v20201028
submitted
17-02-2021 09:16

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

Invoice_0565943.xls
Size

266KB
MD5

f6af4458d269a660cedc88ff8738d4ce
SHA1

d7350d7195c73a9489b3c27d62407e2c8f34825d
SHA256

05b0a29f16f196a36944c94487032c1d9b9acc6bee8839457d730f4053f68e29
SHA512

b24c6105017b8cb0f90c45e6c89838ae58521b285750a3f315ad80dc15a422ca41bab69ca87fa80aaef2901c60f186351bf09022872880c8ed9112a97817dd0c

Score

10^/10

vmprotect

Malware Config

Signatures

Process spawned unexpected child process 1 IoCs

This typically indicates the parent process was compromised via an exploit or macro.

Processes:

regsvr32.exe

description	pid	pid_target	process	target process
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1312	496	regsvr32.exe	EXCEL.EXE

VMProtect packed file 2 IoCs

Detects executables packed with VMProtect commercial packer.

vmprotect

Processes:

resource	yara_rule
C:\ProgramData\msversion.dll	vmprotect
\ProgramData\msversion.dll	vmprotect

Loads dropped DLL 1 IoCs

Processes:

regsvr32.exe

pid process

1344 regsvr32.exe

pid	process
1344	regsvr32.exe

Checks processor information in registry 2 TTPs 3 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

Processes:

EXCEL.EXE

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	EXCEL.EXE

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

EXCEL.EXE

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

496 EXCEL.EXE

Suspicious use of SetWindowsHookEx 13 IoCs

Processes:

EXCEL.EXE

pid	process
496	EXCEL.EXE
496	EXCEL.EXE
496	EXCEL.EXE
496	EXCEL.EXE
496	EXCEL.EXE
496	EXCEL.EXE
496	EXCEL.EXE
496	EXCEL.EXE
496	EXCEL.EXE
496	EXCEL.EXE
496	EXCEL.EXE
496	EXCEL.EXE
496	EXCEL.EXE

Suspicious use of WriteProcessMemory 5 IoCs

Processes:

EXCEL.EXEregsvr32.exe

description	pid	process	target process
PID 496 wrote to memory of 1312	496	EXCEL.EXE	regsvr32.exe
PID 496 wrote to memory of 1312	496	EXCEL.EXE	regsvr32.exe
PID 1312 wrote to memory of 1344	1312	regsvr32.exe	regsvr32.exe
PID 1312 wrote to memory of 1344	1312	regsvr32.exe	regsvr32.exe
PID 1312 wrote to memory of 1344	1312	regsvr32.exe	regsvr32.exe

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\Invoice_0565943.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:496

C:\Windows\System32\regsvr32.exe
"C:\Windows\System32\regsvr32.exe" -s C:\ProgramData\msversion.dll
2⤵
- Process spawned unexpected child process
- Suspicious use of WriteProcessMemory
PID:1312

C:\Windows\SysWOW64\regsvr32.exe
-s C:\ProgramData\msversion.dll
3⤵
- Loads dropped DLL
PID:1344

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\ProgramData\msversion.dll
MD5
e23246d5a16fd344dfd2fc7177d43890

SHA1
9d0ee3d8896911c2743ff89c72c30639f0851f52

SHA256
f4f02f78b8d89ed5063773985d4ad7b4c9205417b34787fb945f739134a85a8b

SHA512
01d4b4c0c60272759906f3c2d255a0378c9b4c081878866c9beef187a8c58b53d7da50109541f2da3051035e72b7a60b54710d6e3cddd01a28eb1009bc6af1ed

Download Submit
\ProgramData\msversion.dll
MD5
e23246d5a16fd344dfd2fc7177d43890

SHA1
9d0ee3d8896911c2743ff89c72c30639f0851f52

SHA256
f4f02f78b8d89ed5063773985d4ad7b4c9205417b34787fb945f739134a85a8b

SHA512
01d4b4c0c60272759906f3c2d255a0378c9b4c081878866c9beef187a8c58b53d7da50109541f2da3051035e72b7a60b54710d6e3cddd01a28eb1009bc6af1ed

Download Submit
memory/496-2-0x00007FF7E5FB0000-0x00007FF7E5FC0000-memory.dmp

Filesize
64KB

Download
memory/496-3-0x00007FF7E5FB0000-0x00007FF7E5FC0000-memory.dmp

Filesize
64KB

Download
memory/496-4-0x00007FF7E5FB0000-0x00007FF7E5FC0000-memory.dmp

Filesize
64KB

Download
memory/496-5-0x00007FF7E5FB0000-0x00007FF7E5FC0000-memory.dmp

Filesize
64KB

Download
memory/496-6-0x00007FF8091A0000-0x00007FF8097D7000-memory.dmp

Filesize
6.2MB

Download
memory/1312-7-0x0000000000000000-mapping.dmp

Download
memory/1344-9-0x0000000000000000-mapping.dmp

Download