9a1af3c393d1579205bbc1966905e30f074256e6dd68f828c051fb2b75b3b2c0

General

Target

9a1af3c393d1579205bbc1966905e30f074256e6dd68f828c051fb2b75b3b2c0.xls
Size

95KB
MD5

d29757d409313ef4892a1f7bef9edcee
SHA1

b20f42f8377d315ef144bfcfcd25493566466e38
SHA256

9a1af3c393d1579205bbc1966905e30f074256e6dd68f828c051fb2b75b3b2c0
SHA512

aa22b78d361a4cc1a3323ff0816210bc00a971b8bb870bef336794f88a6bd6b04d763ab9750cca293e0fd33ed36d13dfbd95f04b6c898551545ad3bf586f2e15

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	4468	2684	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	5100	2684	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3452	2684	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4092	2684	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

2684 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
2684	EXCEL.EXE
2684	EXCEL.EXE
2684	EXCEL.EXE
2684	EXCEL.EXE
2684	EXCEL.EXE
2684	EXCEL.EXE
2684	EXCEL.EXE
2684	EXCEL.EXE
2684	EXCEL.EXE
2684	EXCEL.EXE
2684	EXCEL.EXE
2684	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 2684 wrote to memory of 4468	2684	EXCEL.EXE	regsvr32.exe
PID 2684 wrote to memory of 4468	2684	EXCEL.EXE	regsvr32.exe
PID 2684 wrote to memory of 5100	2684	EXCEL.EXE	regsvr32.exe
PID 2684 wrote to memory of 5100	2684	EXCEL.EXE	regsvr32.exe
PID 2684 wrote to memory of 3452	2684	EXCEL.EXE	regsvr32.exe
PID 2684 wrote to memory of 3452	2684	EXCEL.EXE	regsvr32.exe
PID 2684 wrote to memory of 4092	2684	EXCEL.EXE	regsvr32.exe
PID 2684 wrote to memory of 4092	2684	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\9a1af3c393d1579205bbc1966905e30f074256e6dd68f828c051fb2b75b3b2c0.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2684

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci1.ocx
2⤵
- Process spawned unexpected child process
PID:4468

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci2.ocx
2⤵
- Process spawned unexpected child process
PID:5100

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci3.ocx
2⤵
- Process spawned unexpected child process
PID:3452

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci4.ocx
2⤵
- Process spawned unexpected child process
PID:4092

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/2684-117-0x00007FF9B08A0000-0x00007FF9B08B0000-memory.dmp

Filesize
64KB

Download
memory/2684-118-0x00007FF9B08A0000-0x00007FF9B08B0000-memory.dmp

Filesize
64KB

Download
memory/2684-119-0x00007FF9B08A0000-0x00007FF9B08B0000-memory.dmp

Filesize
64KB

Download
memory/2684-120-0x00007FF9B08A0000-0x00007FF9B08B0000-memory.dmp

Filesize
64KB

Download
memory/2684-129-0x00007FF9ACD30000-0x00007FF9ACD40000-memory.dmp

Filesize
64KB

Download
memory/2684-130-0x00007FF9ACD30000-0x00007FF9ACD40000-memory.dmp

Filesize
64KB

Download
memory/3452-261-0x0000000000000000-mapping.dmp

Download
memory/4092-264-0x0000000000000000-mapping.dmp

Download
memory/4468-259-0x0000000000000000-mapping.dmp

Download
memory/5100-260-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads