78bccdfce650d1b0c3023ed1cf7174625e88af831865a926c927a320c1177e10

General

Target

Account-1579644703.xls
Size

534KB
MD5

65a32f108d3c8a6cc8d7813b9892a952
SHA1

58f1ec7f794a717acfef21f2e1718a80e76d41c5
SHA256

6410cdf429baab84d583828623814316317029059eb46d8eab9a755bf234c612
SHA512

5a9e430794bee2f27dd376f98617a718702600d4ef1a069c16da895c0848c2d3b5372ebf9a7fe5dec5a32427503433bef52bd42349a0b65b995175d80054b84a

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

http://194.36.191.30/44490.5054936343.dat

xlm40.dropper

http://23.106.122.40/44490.5054936343.dat

xlm40.dropper

http://94.140.112.52/44490.5054936343.dat

Signatures

Process spawned unexpected child process 3 IoCs

This typically indicates the parent process was compromised via an exploit or macro.

Processes:

regsvr32.exeregsvr32.exeregsvr32.exe

description	pid	pid_target	process	target process
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3764	2272	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	2756	2272	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3836	2272	regsvr32.exe	EXCEL.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

Processes:

EXCEL.EXE

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

Processes:

EXCEL.EXE

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

Processes:

EXCEL.EXE

pid process

2272 EXCEL.EXE

Suspicious use of SetWindowsHookEx 15 IoCs

Processes:

EXCEL.EXE

pid	process
2272	EXCEL.EXE
2272	EXCEL.EXE
2272	EXCEL.EXE
2272	EXCEL.EXE
2272	EXCEL.EXE
2272	EXCEL.EXE
2272	EXCEL.EXE
2272	EXCEL.EXE
2272	EXCEL.EXE
2272	EXCEL.EXE
2272	EXCEL.EXE
2272	EXCEL.EXE
2272	EXCEL.EXE
2272	EXCEL.EXE
2272	EXCEL.EXE

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 2272 wrote to memory of 3764	2272	EXCEL.EXE	regsvr32.exe
PID 2272 wrote to memory of 3764	2272	EXCEL.EXE	regsvr32.exe
PID 2272 wrote to memory of 2756	2272	EXCEL.EXE	regsvr32.exe
PID 2272 wrote to memory of 2756	2272	EXCEL.EXE	regsvr32.exe
PID 2272 wrote to memory of 3836	2272	EXCEL.EXE	regsvr32.exe
PID 2272 wrote to memory of 3836	2272	EXCEL.EXE	regsvr32.exe

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\Account-1579644703.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2272

C:\Windows\SYSTEM32\regsvr32.exe
regsvr32 -silent ..\Celod.wac
2⤵
- Process spawned unexpected child process
PID:3764

C:\Windows\SYSTEM32\regsvr32.exe
regsvr32 -silent ..\Celod.wac1
2⤵
- Process spawned unexpected child process
PID:2756

C:\Windows\SYSTEM32\regsvr32.exe
regsvr32 -silent ..\Celod.wac2
2⤵
- Process spawned unexpected child process
PID:3836

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

memory/2272-115-0x00007FFCA8250000-0x00007FFCA8260000-memory.dmp

Filesize
64KB

Download
memory/2272-116-0x00007FFCA8250000-0x00007FFCA8260000-memory.dmp

Filesize
64KB

Download
memory/2272-117-0x00007FFCA8250000-0x00007FFCA8260000-memory.dmp

Filesize
64KB

Download
memory/2272-118-0x00007FFCA8250000-0x00007FFCA8260000-memory.dmp

Filesize
64KB

Download
memory/2272-119-0x00007FFCA8250000-0x00007FFCA8260000-memory.dmp

Filesize
64KB

Download
memory/2272-120-0x0000017DAC3D0000-0x0000017DAC3D2000-memory.dmp

Filesize
8KB

Download
memory/2272-121-0x0000017DAC3D0000-0x0000017DAC3D2000-memory.dmp

Filesize
8KB

Download
memory/2272-122-0x0000017DAC3D0000-0x0000017DAC3D2000-memory.dmp

Filesize
8KB

Download
memory/2756-269-0x0000000000000000-mapping.dmp

Download
memory/3764-268-0x0000000000000000-mapping.dmp

Download
memory/3836-270-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads