7c2dae7cfc7b469c26b14d5cf7aed0e063ab8f854c7563d1e7fca448e6827a05

General

Target

cancel_sub_JPLyeahyourenotgettingmynumber.xlsb
Size

264KB
MD5

f1b51acf675dd0973ce3ec78fd9a1859
SHA1

83e8858f1d6a849151289a7c507a740d59e5da79
SHA256

7c2dae7cfc7b469c26b14d5cf7aed0e063ab8f854c7563d1e7fca448e6827a05
SHA512

9ce754214b348348fbdbdc933a61c9f01646f8021769c1c683fe1eb7d5af59e22950226233244cd7f304944164b46a55d708a668e01cf115085466357b766b43

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	3588	644	cmd.exe	67

Loads dropped DLL 1 IoCs

pid	Process
1252	rundll32.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1264	1252	WerFault.exe	85

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

Suspicious behavior: EnumeratesProcesses 15 IoCs

pid	Process
1264	WerFault.exe
1264	WerFault.exe
1264	WerFault.exe
1264	WerFault.exe
1264	WerFault.exe
1264	WerFault.exe
1264	WerFault.exe
1264	WerFault.exe
1264	WerFault.exe
1264	WerFault.exe
1264	WerFault.exe
1264	WerFault.exe
1264	WerFault.exe
1264	WerFault.exe
1264	WerFault.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeRestorePrivilege	1264	WerFault.exe
Token: SeBackupPrivilege	1264	WerFault.exe
Token: SeDebugPrivilege	1264	WerFault.exe

Suspicious use of SetWindowsHookEx 19 IoCs

pid	Process
644	EXCEL.EXE
644	EXCEL.EXE
644	EXCEL.EXE
644	EXCEL.EXE
644	EXCEL.EXE
644	EXCEL.EXE
644	EXCEL.EXE
644	EXCEL.EXE
644	EXCEL.EXE
644	EXCEL.EXE
644	EXCEL.EXE
644	EXCEL.EXE
644	EXCEL.EXE
644	EXCEL.EXE
644	EXCEL.EXE
644	EXCEL.EXE
644	EXCEL.EXE
644	EXCEL.EXE
644	EXCEL.EXE

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 644 wrote to memory of 2368	644	EXCEL.EXE	77
PID 644 wrote to memory of 2368	644	EXCEL.EXE	77
PID 644 wrote to memory of 3588	644	EXCEL.EXE	81
PID 644 wrote to memory of 3588	644	EXCEL.EXE	81
PID 3588 wrote to memory of 1940	3588	cmd.exe	83
PID 3588 wrote to memory of 1940	3588	cmd.exe	83
PID 3588 wrote to memory of 3460	3588	cmd.exe	84
PID 3588 wrote to memory of 3460	3588	cmd.exe	84
PID 3460 wrote to memory of 1252	3460	rundll32.exe	85
PID 3460 wrote to memory of 1252	3460	rundll32.exe	85
PID 3460 wrote to memory of 1252	3460	rundll32.exe	85

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_JPLyeahyourenotgettingmynumber.xlsb"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:644
- C:\Windows\splwow64.exe
  C:\Windows\splwow64.exe 12288
  2⤵
  PID:2368
- 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:3588
- - C:\Windows\system32\certutil.exe
    certutil -decode C:\Users\Public\4802545.xs1 C:\Users\Public\4802545.xs2
    3⤵
    PID:1940
- - C:\Windows\system32\rundll32.exe
    rundll32 C:\Users\Public\4802545.xs2,DF1
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:3460
  - - C:\Windows\SysWOW64\rundll32.exe
      rundll32 C:\Users\Public\4802545.xs2,DF1
      4⤵
      Loads dropped DLL
      PID:1252
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 1252 -s 820
        5⤵
        Program crash
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        
        PID:1264

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/644-117-0x00007FF9EE820000-0x00007FF9EE830000-memory.dmp

Filesize
64KB

Download
memory/644-118-0x00007FF9EE820000-0x00007FF9EE830000-memory.dmp

Filesize
64KB

Download
memory/644-121-0x00007FF9EE820000-0x00007FF9EE830000-memory.dmp

Filesize
64KB

Download
memory/644-122-0x00007FFA0F210000-0x00007FFA102FE000-memory.dmp

Filesize
16.9MB

Download
memory/644-123-0x00007FFA0D310000-0x00007FFA0F205000-memory.dmp

Filesize
31.0MB

Download
memory/644-114-0x00007FF736BA0000-0x00007FF73A156000-memory.dmp

Filesize
53.7MB

Download
memory/644-116-0x00007FF9EE820000-0x00007FF9EE830000-memory.dmp

Filesize
64KB

Download
memory/644-115-0x00007FF9EE820000-0x00007FF9EE830000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads