5b4ba9cc963513abacf5bafd3435744882577ceb8eb90d1518274e83a2f61f33

General

Target

5b4ba9cc963513abacf5bafd3435744882577ceb8eb90d1518274e83a2f61f33.xls
Size

95KB
MD5

657e2b7234b64d9ff7ee9d5fa2adb825
SHA1

ba20aa741bd6c699b7b7a8964ca5f907e4ca34e3
SHA256

5b4ba9cc963513abacf5bafd3435744882577ceb8eb90d1518274e83a2f61f33
SHA512

c4618db738f209270ba5b7fae7bd5f3582289034c8313e3ddd20f6856cbbf23571b3dbf552db0d7bd2038f9609b82c1dcbd6a3f0b92337b397bb2cdead2bc05b

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	4000	2424	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3180	2424	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4772	2424	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4092	2424	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\SystemSKU	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

2424 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
2424	EXCEL.EXE
2424	EXCEL.EXE
2424	EXCEL.EXE
2424	EXCEL.EXE
2424	EXCEL.EXE
2424	EXCEL.EXE
2424	EXCEL.EXE
2424	EXCEL.EXE
2424	EXCEL.EXE
2424	EXCEL.EXE
2424	EXCEL.EXE
2424	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 2424 wrote to memory of 4000	2424	EXCEL.EXE	regsvr32.exe
PID 2424 wrote to memory of 4000	2424	EXCEL.EXE	regsvr32.exe
PID 2424 wrote to memory of 3180	2424	EXCEL.EXE	regsvr32.exe
PID 2424 wrote to memory of 3180	2424	EXCEL.EXE	regsvr32.exe
PID 2424 wrote to memory of 4772	2424	EXCEL.EXE	regsvr32.exe
PID 2424 wrote to memory of 4772	2424	EXCEL.EXE	regsvr32.exe
PID 2424 wrote to memory of 4092	2424	EXCEL.EXE	regsvr32.exe
PID 2424 wrote to memory of 4092	2424	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\5b4ba9cc963513abacf5bafd3435744882577ceb8eb90d1518274e83a2f61f33.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2424

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci1.ocx
2⤵
- Process spawned unexpected child process
PID:4000

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci2.ocx
2⤵
- Process spawned unexpected child process
PID:3180

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci3.ocx
2⤵
- Process spawned unexpected child process
PID:4772

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/2424-117-0x00007FFE6BC10000-0x00007FFE6BC20000-memory.dmp

Filesize
64KB

Download
memory/2424-118-0x00007FFE6BC10000-0x00007FFE6BC20000-memory.dmp

Filesize
64KB

Download
memory/2424-119-0x00007FFE6BC10000-0x00007FFE6BC20000-memory.dmp

Filesize
64KB

Download
memory/2424-120-0x00007FFE6BC10000-0x00007FFE6BC20000-memory.dmp

Filesize
64KB

Download
memory/2424-129-0x00007FFE68960000-0x00007FFE68970000-memory.dmp

Filesize
64KB

Download
memory/2424-130-0x00007FFE68960000-0x00007FFE68970000-memory.dmp

Filesize
64KB

Download
memory/3180-264-0x0000000000000000-mapping.dmp

Download
memory/4000-263-0x0000000000000000-mapping.dmp

Download
memory/4092-268-0x0000000000000000-mapping.dmp

Download
memory/4772-265-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads