899ff32881b5b805751ad4c7a5fba168656451279d77e45b2323fca1d2d02e8c

General

Target

899ff32881b5b805751ad4c7a5fba168656451279d77e45b2323fca1d2d02e8c.xls
Size

95KB
MD5

4845aac51de8e6270b33db3212f4705b
SHA1

3b7449cea0fa296eedda6eb13af50fdf699831fa
SHA256

899ff32881b5b805751ad4c7a5fba168656451279d77e45b2323fca1d2d02e8c
SHA512

d7de16cc91b0bb9ef49ef7bcc1b13ec5050d9257a80dc49ae91073c582857008d698335da68a9e146b83beb918dd3c42c74e3eb5e6e9e0a898faa51bdbdcbb5f

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

https://edoraseguros.com.br/cgi-bin/jQNq9wlH1GXU/

xlm40.dropper

http://earthmach.co.za/libraries/tWkZh9YrXbTd6IeX/

xlm40.dropper

http://finvest.rs/wp-admin/Hr9nVNTIHgw59S/

xlm40.dropper

http://efverstedt.se/5jjaV/w7fLEHJ20xn0qD/

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	3676	1128	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3868	1128	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3872	1128	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1244	1128	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

1128 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
1128	EXCEL.EXE
1128	EXCEL.EXE
1128	EXCEL.EXE
1128	EXCEL.EXE
1128	EXCEL.EXE
1128	EXCEL.EXE
1128	EXCEL.EXE
1128	EXCEL.EXE
1128	EXCEL.EXE
1128	EXCEL.EXE
1128	EXCEL.EXE
1128	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 1128 wrote to memory of 3676	1128	EXCEL.EXE	regsvr32.exe
PID 1128 wrote to memory of 3676	1128	EXCEL.EXE	regsvr32.exe
PID 1128 wrote to memory of 3868	1128	EXCEL.EXE	regsvr32.exe
PID 1128 wrote to memory of 3868	1128	EXCEL.EXE	regsvr32.exe
PID 1128 wrote to memory of 3872	1128	EXCEL.EXE	regsvr32.exe
PID 1128 wrote to memory of 3872	1128	EXCEL.EXE	regsvr32.exe
PID 1128 wrote to memory of 1244	1128	EXCEL.EXE	regsvr32.exe
PID 1128 wrote to memory of 1244	1128	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\899ff32881b5b805751ad4c7a5fba168656451279d77e45b2323fca1d2d02e8c.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1128

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci1.ocx
2⤵
- Process spawned unexpected child process
PID:3676

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci2.ocx
2⤵
- Process spawned unexpected child process
PID:3868

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci3.ocx
2⤵
- Process spawned unexpected child process
PID:3872

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci4.ocx
2⤵
- Process spawned unexpected child process
PID:1244

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/1128-118-0x00007FFEE8CB0000-0x00007FFEE8CC0000-memory.dmp

Filesize
64KB

Download
memory/1128-119-0x00007FFEE8CB0000-0x00007FFEE8CC0000-memory.dmp

Filesize
64KB

Download
memory/1128-120-0x00007FFEE8CB0000-0x00007FFEE8CC0000-memory.dmp

Filesize
64KB

Download
memory/1128-121-0x00007FFEE8CB0000-0x00007FFEE8CC0000-memory.dmp

Filesize
64KB

Download
memory/1128-130-0x00007FFEE5840000-0x00007FFEE5850000-memory.dmp

Filesize
64KB

Download
memory/1128-131-0x00007FFEE5840000-0x00007FFEE5850000-memory.dmp

Filesize
64KB

Download
memory/1244-265-0x0000000000000000-mapping.dmp

Download
memory/3676-262-0x0000000000000000-mapping.dmp

Download
memory/3868-263-0x0000000000000000-mapping.dmp

Download
memory/3872-264-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads