3cc4948d4d3cac89a74284ae4dc49d177b834f295e9f767a46dcd73726b7239d

General

Target

cancel_sub_JPL12345678901234.xlsb
Size

241KB
MD5

b4a0b38ff2bd7619e42c0f1d1fb0171b
SHA1

c0e61bcc7139bc2342e5a9eb9a2bc056c475624d
SHA256

3cc4948d4d3cac89a74284ae4dc49d177b834f295e9f767a46dcd73726b7239d
SHA512

8830468a4f8ee1032abe7ede05fdc11fb592355c81447bf0d65b995a6d6a55fc399025084bb74bb7f4b52a14ee7a2ea79a2100480222c1da95e19b3b4a59cff5

Score

10^/10

Malware Config

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	1948	668	cmd.exe	67

Loads dropped DLL 1 IoCs

pid	Process
188	rundll32.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1996	188	WerFault.exe	84

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
668	EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 15 IoCs

pid	Process
1996	WerFault.exe
1996	WerFault.exe
1996	WerFault.exe
1996	WerFault.exe
1996	WerFault.exe
1996	WerFault.exe
1996	WerFault.exe
1996	WerFault.exe
1996	WerFault.exe
1996	WerFault.exe
1996	WerFault.exe
1996	WerFault.exe
1996	WerFault.exe
1996	WerFault.exe
1996	WerFault.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeRestorePrivilege	1996	WerFault.exe
Token: SeBackupPrivilege	1996	WerFault.exe
Token: SeDebugPrivilege	1996	WerFault.exe

Suspicious use of SetWindowsHookEx 18 IoCs

pid	Process
668	EXCEL.EXE
668	EXCEL.EXE
668	EXCEL.EXE
668	EXCEL.EXE
668	EXCEL.EXE
668	EXCEL.EXE
668	EXCEL.EXE
668	EXCEL.EXE
668	EXCEL.EXE
668	EXCEL.EXE
668	EXCEL.EXE
668	EXCEL.EXE
668	EXCEL.EXE
668	EXCEL.EXE
668	EXCEL.EXE
668	EXCEL.EXE
668	EXCEL.EXE
668	EXCEL.EXE

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 668 wrote to memory of 3892	668	EXCEL.EXE	77
PID 668 wrote to memory of 3892	668	EXCEL.EXE	77
PID 668 wrote to memory of 1948	668	EXCEL.EXE	80
PID 668 wrote to memory of 1948	668	EXCEL.EXE	80
PID 1948 wrote to memory of 2820	1948	cmd.exe	82
PID 1948 wrote to memory of 2820	1948	cmd.exe	82
PID 1948 wrote to memory of 3980	1948	cmd.exe	83
PID 1948 wrote to memory of 3980	1948	cmd.exe	83
PID 3980 wrote to memory of 188	3980	rundll32.exe	84
PID 3980 wrote to memory of 188	3980	rundll32.exe	84
PID 3980 wrote to memory of 188	3980	rundll32.exe	84

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\cancel_sub_JPL12345678901234.xlsb"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:668
- C:\Windows\splwow64.exe
  C:\Windows\splwow64.exe 12288
  2⤵
  PID:3892
- C:\Windows\SYSTEM32\cmd.exe
  cmd.exe /c certutil -decode C:\Users\Public\4802545.xs1 C:\Users\Public\4802545.xs2 && rundll32 C:\Users\Public\4802545.xs2,DF1
  2⤵
  - Process spawned unexpected child process
  - Suspicious use of WriteProcessMemory
  PID:1948
- - C:\Windows\system32\certutil.exe
    certutil -decode C:\Users\Public\4802545.xs1 C:\Users\Public\4802545.xs2
    3⤵
    PID:2820
- - C:\Windows\system32\rundll32.exe
    rundll32 C:\Users\Public\4802545.xs2,DF1
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:3980
  - - C:\Windows\SysWOW64\rundll32.exe
      rundll32 C:\Users\Public\4802545.xs2,DF1
      4⤵
      Loads dropped DLL
      PID:188
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 188 -s 820
        5⤵
        Program crash
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        
        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

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/668-122-0x00007FFDD5C80000-0x00007FFDD6D6E000-memory.dmp

Filesize
16.9MB

Download
memory/668-121-0x00007FFDB5990000-0x00007FFDB59A0000-memory.dmp

Filesize
64KB

Download
memory/668-118-0x00007FFDB5990000-0x00007FFDB59A0000-memory.dmp

Filesize
64KB

Download
memory/668-123-0x0000023EE02D0000-0x0000023EE21C5000-memory.dmp

Filesize
31.0MB

Download
memory/668-114-0x00007FF732B50000-0x00007FF736106000-memory.dmp

Filesize
53.7MB

Download
memory/668-117-0x00007FFDB5990000-0x00007FFDB59A0000-memory.dmp

Filesize
64KB

Download
memory/668-116-0x00007FFDB5990000-0x00007FFDB59A0000-memory.dmp

Filesize
64KB

Download
memory/668-115-0x00007FFDB5990000-0x00007FFDB59A0000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads