5575e082d52d01373370bb9d92a6bf5138bf02d8b231533c04ff6d566553bbfe

General

Target

5575e082d52d01373370bb9d92a6bf5138bf02d8b231533c04ff6d566553bbfe.xls
Size

95KB
MD5

08d50f63e2c866990492a379570d0176
SHA1

abc28d6b6eec18337a1747402e1b6ef97565389e
SHA256

5575e082d52d01373370bb9d92a6bf5138bf02d8b231533c04ff6d566553bbfe
SHA512

51dc260ae7fd54fa74bf41dfa503d2e06b88cc2d2ec4cdd9f9363ad5174204d56a53121a5f9901dbf23d8fd8f761f0fff05c0588551762e73722e92de68f3444

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

http://www.sunflowerlaboratory.in/fonts/79Tq62ly/

xlm40.dropper

http://dirigent.co.uk/vardagsekonomi/iC36jJ4J1cf/

xlm40.dropper

http://agtrade.hu/images/kiQYmOs2tSKq/

xlm40.dropper

https://www.zachboyle.com/wp-admin/EA470ZrTGNkuA/

Signatures

Process spawned unexpected child process 4 IoCs

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

Processes:

regsvr32.exeregsvr32.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	3460	1484	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3036	1484	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3152	1484	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	2612	1484	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 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

Processes:

EXCEL.EXE

pid process

1484 EXCEL.EXE
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

EXCEL.EXE

pid process

1484 EXCEL.EXE
1484 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
1484	EXCEL.EXE
1484	EXCEL.EXE
1484	EXCEL.EXE
1484	EXCEL.EXE
1484	EXCEL.EXE
1484	EXCEL.EXE
1484	EXCEL.EXE
1484	EXCEL.EXE
1484	EXCEL.EXE
1484	EXCEL.EXE
1484	EXCEL.EXE
1484	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 1484 wrote to memory of 3460	1484	EXCEL.EXE	regsvr32.exe
PID 1484 wrote to memory of 3460	1484	EXCEL.EXE	regsvr32.exe
PID 1484 wrote to memory of 3036	1484	EXCEL.EXE	regsvr32.exe
PID 1484 wrote to memory of 3036	1484	EXCEL.EXE	regsvr32.exe
PID 1484 wrote to memory of 3152	1484	EXCEL.EXE	regsvr32.exe
PID 1484 wrote to memory of 3152	1484	EXCEL.EXE	regsvr32.exe
PID 1484 wrote to memory of 2612	1484	EXCEL.EXE	regsvr32.exe
PID 1484 wrote to memory of 2612	1484	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\5575e082d52d01373370bb9d92a6bf5138bf02d8b231533c04ff6d566553bbfe.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1484

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci1.ocx
2⤵
- Process spawned unexpected child process
PID:3460

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci2.ocx
2⤵
- Process spawned unexpected child process
PID:3036

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci3.ocx
2⤵
- Process spawned unexpected child process
PID:3152

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci4.ocx
2⤵
- Process spawned unexpected child process
PID:2612

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

Replay Monitor

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Downloads

memory/1484-295-0x00007FF8936B0000-0x00007FF8936C0000-memory.dmp

Filesize
64KB

Download
memory/1484-120-0x00007FF8936B0000-0x00007FF8936C0000-memory.dmp

Filesize
64KB

Download
memory/1484-121-0x00007FF8936B0000-0x00007FF8936C0000-memory.dmp

Filesize
64KB

Download
memory/1484-122-0x00007FF8936B0000-0x00007FF8936C0000-memory.dmp

Filesize
64KB

Download
memory/1484-131-0x00007FF890910000-0x00007FF890920000-memory.dmp

Filesize
64KB

Download
memory/1484-132-0x00007FF890910000-0x00007FF890920000-memory.dmp

Filesize
64KB

Download
memory/1484-298-0x00007FF8936B0000-0x00007FF8936C0000-memory.dmp

Filesize
64KB

Download
memory/1484-297-0x00007FF8936B0000-0x00007FF8936C0000-memory.dmp

Filesize
64KB

Download
memory/1484-296-0x00007FF8936B0000-0x00007FF8936C0000-memory.dmp

Filesize
64KB

Download
memory/1484-119-0x00007FF8936B0000-0x00007FF8936C0000-memory.dmp

Filesize
64KB

Download
memory/2612-258-0x0000000000000000-mapping.dmp

Download
memory/3036-254-0x0000000000000000-mapping.dmp

Download
memory/3152-255-0x0000000000000000-mapping.dmp

Download
memory/3460-253-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads