96031cc46b229cfb0baef38d56208412f45d0ec56a7f370fbe050894237f3009

General

Target

2022-05-21-b8f3a5f97651057dbc10bb483d8eb117_unzipped.xls
Size

67KB
MD5

b8f3a5f97651057dbc10bb483d8eb117
SHA1

2cec411ff6d32fd71dffc0e72e06d426e16d06e0
SHA256

96031cc46b229cfb0baef38d56208412f45d0ec56a7f370fbe050894237f3009
SHA512

cb953dbaf95fa7a3f6d47fab06db214e46fff67075b99ac7d16a46d674371279434041d64bf945d5c9438fd12b359e5f2293ec17254ced9acdc8c63c61024b83

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

http://www.clasite.com/blogs/IEEsyn/

xlm40.dropper

https://oncrete-egy.com/wp-content/V6Igzw8/

xlm40.dropper

http://opencart-destek.com/catalog/OqHwQ8xlWa5Goyo/

xlm40.dropper

http://www.pjesacac.com/components/O93XXhMN3tOtTlV/

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	2624	3564	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4412	3564	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1052	3564	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3308	3564	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

3564 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
3564	EXCEL.EXE
3564	EXCEL.EXE
3564	EXCEL.EXE
3564	EXCEL.EXE
3564	EXCEL.EXE
3564	EXCEL.EXE
3564	EXCEL.EXE
3564	EXCEL.EXE
3564	EXCEL.EXE
3564	EXCEL.EXE
3564	EXCEL.EXE
3564	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 3564 wrote to memory of 2624	3564	EXCEL.EXE	regsvr32.exe
PID 3564 wrote to memory of 2624	3564	EXCEL.EXE	regsvr32.exe
PID 3564 wrote to memory of 4412	3564	EXCEL.EXE	regsvr32.exe
PID 3564 wrote to memory of 4412	3564	EXCEL.EXE	regsvr32.exe
PID 3564 wrote to memory of 1052	3564	EXCEL.EXE	regsvr32.exe
PID 3564 wrote to memory of 1052	3564	EXCEL.EXE	regsvr32.exe
PID 3564 wrote to memory of 3308	3564	EXCEL.EXE	regsvr32.exe
PID 3564 wrote to memory of 3308	3564	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\2022-05-21-b8f3a5f97651057dbc10bb483d8eb117_unzipped.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3564

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\uxevr1.ocx
2⤵
- Process spawned unexpected child process
PID:2624

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\uxevr2.ocx
2⤵
- Process spawned unexpected child process
PID:4412

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\uxevr3.ocx
2⤵
- Process spawned unexpected child process
PID:1052

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\uxevr4.ocx
2⤵
- Process spawned unexpected child process
PID:3308

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/1052-139-0x0000000000000000-mapping.dmp

Download
memory/2624-137-0x0000000000000000-mapping.dmp

Download
memory/3308-140-0x0000000000000000-mapping.dmp

Download
memory/3564-130-0x00007FFEDB450000-0x00007FFEDB460000-memory.dmp

Filesize
64KB

Download
memory/3564-131-0x00007FFEDB450000-0x00007FFEDB460000-memory.dmp

Filesize
64KB

Download
memory/3564-132-0x00007FFEDB450000-0x00007FFEDB460000-memory.dmp

Filesize
64KB

Download
memory/3564-133-0x00007FFEDB450000-0x00007FFEDB460000-memory.dmp

Filesize
64KB

Download
memory/3564-134-0x00007FFEDB450000-0x00007FFEDB460000-memory.dmp

Filesize
64KB

Download
memory/3564-135-0x00007FFED8E40000-0x00007FFED8E50000-memory.dmp

Filesize
64KB

Download
memory/3564-136-0x00007FFED8E40000-0x00007FFED8E50000-memory.dmp

Filesize
64KB

Download
memory/4412-138-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads