42aeef1b5f9d53105bd3d9076b7634e1eed53f89c9e3577426f4c51441e4fca4

General

Target

cancel_sub_JPL12345678901234.xlsb
Size

267KB
MD5

21a57dbd1dad6aec8edbbaeddabac81b
SHA1

f20bdcb3970bc9fabfff60628a71cfe318d4efe9
SHA256

42aeef1b5f9d53105bd3d9076b7634e1eed53f89c9e3577426f4c51441e4fca4
SHA512

a2339ff6347d6d3dff885b8317de5a87df589462052ac2c6dc8fb09715aca149379bc7e71e7c1ba2ccae976e7d0d4d1790971db6dc92b57ab35810953bc73563

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	3952	744	cmd.exe	68

Blocklisted process makes network request 1 IoCs

flow	pid	Process
31	3112	rundll32.exe

Loads dropped DLL 1 IoCs

pid	Process
3112	rundll32.exe

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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
744	EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
744	EXCEL.EXE
744	EXCEL.EXE
744	EXCEL.EXE
744	EXCEL.EXE
744	EXCEL.EXE
744	EXCEL.EXE
744	EXCEL.EXE
744	EXCEL.EXE
744	EXCEL.EXE
744	EXCEL.EXE
744	EXCEL.EXE
744	EXCEL.EXE

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 744 wrote to memory of 3768	744	EXCEL.EXE	77
PID 744 wrote to memory of 3768	744	EXCEL.EXE	77
PID 744 wrote to memory of 3952	744	EXCEL.EXE	82
PID 744 wrote to memory of 3952	744	EXCEL.EXE	82
PID 3952 wrote to memory of 2316	3952	cmd.exe	84
PID 3952 wrote to memory of 2316	3952	cmd.exe	84
PID 3952 wrote to memory of 3780	3952	cmd.exe	85
PID 3952 wrote to memory of 3780	3952	cmd.exe	85
PID 3780 wrote to memory of 3112	3780	rundll32.exe	86
PID 3780 wrote to memory of 3112	3780	rundll32.exe	86
PID 3780 wrote to memory of 3112	3780	rundll32.exe	86

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:744
- C:\Windows\splwow64.exe
  C:\Windows\splwow64.exe 12288
  2⤵
  PID:3768
- 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:3952
- - C:\Windows\system32\certutil.exe
    certutil -decode C:\Users\Public\4802545.xs1 C:\Users\Public\4802545.xs2
    3⤵
    PID:2316
- - C:\Windows\system32\rundll32.exe
    rundll32 C:\Users\Public\4802545.xs2,DF1
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:3780
  - - C:\Windows\SysWOW64\rundll32.exe
      rundll32 C:\Users\Public\4802545.xs2,DF1
      4⤵
      Blocklisted process makes network request
      Loads dropped DLL
      PID:3112

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/744-118-0x00007FFDDC160000-0x00007FFDDC170000-memory.dmp

Filesize
64KB

Download
memory/744-117-0x00007FFDDC160000-0x00007FFDDC170000-memory.dmp

Filesize
64KB

Download
memory/744-122-0x00007FFDDC160000-0x00007FFDDC170000-memory.dmp

Filesize
64KB

Download
memory/744-121-0x00007FFDFC7D0000-0x00007FFDFD8BE000-memory.dmp

Filesize
16.9MB

Download
memory/744-123-0x00007FFDFA8D0000-0x00007FFDFC7C5000-memory.dmp

Filesize
31.0MB

Download
memory/744-114-0x00007FF6033B0000-0x00007FF606966000-memory.dmp

Filesize
53.7MB

Download
memory/744-116-0x00007FFDDC160000-0x00007FFDDC170000-memory.dmp

Filesize
64KB

Download
memory/744-115-0x00007FFDDC160000-0x00007FFDDC170000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads