de350a3ba96f6c7cfdaca0cbb57fabf100d867975a639dc3477dcd42158e155d

General

Target

de350a3ba96f6c7cfdaca0cbb57fabf100d867975a639dc3477dcd42158e155d.xls
Size

95KB
MD5

2329411917d4631610147f2e5babb7fd
SHA1

bdde20877063bdc21f8ea1d07cf0551d7108e82f
SHA256

de350a3ba96f6c7cfdaca0cbb57fabf100d867975a639dc3477dcd42158e155d
SHA512

2a1b84130b30a6d7517dda27775108e37ef55356af96c0c076544468b5a131b1c1310fb212e1592c646be5c6ee662ead2d83823c92a47f9a11e2b0ff5a0eb618

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	3384	4740	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	5028	4740	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4932	4740	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4408	4740	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

4740 EXCEL.EXE
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

EXCEL.EXE

pid process

4740 EXCEL.EXE
4740 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
4740	EXCEL.EXE
4740	EXCEL.EXE
4740	EXCEL.EXE
4740	EXCEL.EXE
4740	EXCEL.EXE
4740	EXCEL.EXE
4740	EXCEL.EXE
4740	EXCEL.EXE
4740	EXCEL.EXE
4740	EXCEL.EXE
4740	EXCEL.EXE
4740	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 4740 wrote to memory of 3384	4740	EXCEL.EXE	regsvr32.exe
PID 4740 wrote to memory of 3384	4740	EXCEL.EXE	regsvr32.exe
PID 4740 wrote to memory of 5028	4740	EXCEL.EXE	regsvr32.exe
PID 4740 wrote to memory of 5028	4740	EXCEL.EXE	regsvr32.exe
PID 4740 wrote to memory of 4932	4740	EXCEL.EXE	regsvr32.exe
PID 4740 wrote to memory of 4932	4740	EXCEL.EXE	regsvr32.exe
PID 4740 wrote to memory of 4408	4740	EXCEL.EXE	regsvr32.exe
PID 4740 wrote to memory of 4408	4740	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\de350a3ba96f6c7cfdaca0cbb57fabf100d867975a639dc3477dcd42158e155d.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4740

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci1.ocx
2⤵
- Process spawned unexpected child process
PID:3384

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci2.ocx
2⤵
- Process spawned unexpected child process
PID:5028

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci3.ocx
2⤵
- Process spawned unexpected child process
PID:4932

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci4.ocx
2⤵
- Process spawned unexpected child process
PID:4408

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

Replay Monitor

Loading Replay Monitor...

Downloads

memory/3384-250-0x0000000000000000-mapping.dmp

Download
memory/4408-253-0x0000000000000000-mapping.dmp

Download
memory/4740-114-0x00007FFC64F50000-0x00007FFC64F60000-memory.dmp

Filesize
64KB

Download
memory/4740-115-0x00007FFC64F50000-0x00007FFC64F60000-memory.dmp

Filesize
64KB

Download
memory/4740-116-0x00007FFC64F50000-0x00007FFC64F60000-memory.dmp

Filesize
64KB

Download
memory/4740-117-0x00007FFC64F50000-0x00007FFC64F60000-memory.dmp

Filesize
64KB

Download
memory/4740-126-0x00007FFC61C00000-0x00007FFC61C10000-memory.dmp

Filesize
64KB

Download
memory/4740-127-0x00007FFC61C00000-0x00007FFC61C10000-memory.dmp

Filesize
64KB

Download
memory/4932-252-0x0000000000000000-mapping.dmp

Download
memory/5028-251-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads