7ad879bbbc5f3199f88bfffffa2ff13b1a8d97c66fa3f750b36881bf2448a14a

General

Target

7ad879bbbc5f3199f88bfffffa2ff13b1a8d97c66fa3f750b36881bf2448a14a.xls
Size

95KB
MD5

44b85b317f86b33a8707552936c05cca
SHA1

7dad84826381b2a3c6104a701ff7cc1cddca824e
SHA256

7ad879bbbc5f3199f88bfffffa2ff13b1a8d97c66fa3f750b36881bf2448a14a
SHA512

775cad9d27417e0438ed9e40336bab5b8135e68650a2c1bc2e54dfb9b64048d81684f99fde458daa37f4388d92cb5cfb1be63d38904dd93efbfa92fd67cefa23

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	5052	2208	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4720	2208	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	5116	2208	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4492	2208	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

2208 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
2208	EXCEL.EXE
2208	EXCEL.EXE
2208	EXCEL.EXE
2208	EXCEL.EXE
2208	EXCEL.EXE
2208	EXCEL.EXE
2208	EXCEL.EXE
2208	EXCEL.EXE
2208	EXCEL.EXE
2208	EXCEL.EXE
2208	EXCEL.EXE
2208	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 2208 wrote to memory of 5052	2208	EXCEL.EXE	regsvr32.exe
PID 2208 wrote to memory of 5052	2208	EXCEL.EXE	regsvr32.exe
PID 2208 wrote to memory of 4720	2208	EXCEL.EXE	regsvr32.exe
PID 2208 wrote to memory of 4720	2208	EXCEL.EXE	regsvr32.exe
PID 2208 wrote to memory of 5116	2208	EXCEL.EXE	regsvr32.exe
PID 2208 wrote to memory of 5116	2208	EXCEL.EXE	regsvr32.exe
PID 2208 wrote to memory of 4492	2208	EXCEL.EXE	regsvr32.exe
PID 2208 wrote to memory of 4492	2208	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\7ad879bbbc5f3199f88bfffffa2ff13b1a8d97c66fa3f750b36881bf2448a14a.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2208

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci1.ocx
2⤵
- Process spawned unexpected child process
PID:5052

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci2.ocx
2⤵
- Process spawned unexpected child process
PID:4720

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci3.ocx
2⤵
- Process spawned unexpected child process
PID:5116

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci4.ocx
2⤵
- Process spawned unexpected child process
PID:4492

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/2208-117-0x00007FFA64320000-0x00007FFA64330000-memory.dmp

Filesize
64KB

Download
memory/2208-118-0x00007FFA64320000-0x00007FFA64330000-memory.dmp

Filesize
64KB

Download
memory/2208-119-0x00007FFA64320000-0x00007FFA64330000-memory.dmp

Filesize
64KB

Download
memory/2208-120-0x00007FFA64320000-0x00007FFA64330000-memory.dmp

Filesize
64KB

Download
memory/2208-129-0x00007FFA617D0000-0x00007FFA617E0000-memory.dmp

Filesize
64KB

Download
memory/2208-130-0x00007FFA617D0000-0x00007FFA617E0000-memory.dmp

Filesize
64KB

Download
memory/4492-268-0x0000000000000000-mapping.dmp

Download
memory/4720-264-0x0000000000000000-mapping.dmp

Download
memory/5052-263-0x0000000000000000-mapping.dmp

Download
memory/5116-265-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads