cff7923202218d3ba27d14e9a84bf85d85d439855ae72ebcce7216610e8f25ec

General

Target

cff7923202218d3ba27d14e9a84bf85d85d439855ae72ebcce7216610e8f25ec.xls
Size

95KB
MD5

70e9fc62e531b2d176f62afa87523800
SHA1

b31e47a4f500bb6d24b3389b0c61b44608980523
SHA256

cff7923202218d3ba27d14e9a84bf85d85d439855ae72ebcce7216610e8f25ec
SHA512

637a26947f8a0d0b8a31ab93da078f6c83fda89bec3f41264c6644e0f09e1957020bdadc7da8810aebba504ca9dae355172aafa1d463c8d32a06da6f9497b911

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	4356	2156	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3140	2156	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3944	2156	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3888	2156	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\SystemFamily	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

2156 EXCEL.EXE
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

EXCEL.EXE

pid process

2156 EXCEL.EXE
2156 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
2156	EXCEL.EXE
2156	EXCEL.EXE
2156	EXCEL.EXE
2156	EXCEL.EXE
2156	EXCEL.EXE
2156	EXCEL.EXE
2156	EXCEL.EXE
2156	EXCEL.EXE
2156	EXCEL.EXE
2156	EXCEL.EXE
2156	EXCEL.EXE
2156	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 2156 wrote to memory of 4356	2156	EXCEL.EXE	regsvr32.exe
PID 2156 wrote to memory of 4356	2156	EXCEL.EXE	regsvr32.exe
PID 2156 wrote to memory of 3140	2156	EXCEL.EXE	regsvr32.exe
PID 2156 wrote to memory of 3140	2156	EXCEL.EXE	regsvr32.exe
PID 2156 wrote to memory of 3944	2156	EXCEL.EXE	regsvr32.exe
PID 2156 wrote to memory of 3944	2156	EXCEL.EXE	regsvr32.exe
PID 2156 wrote to memory of 3888	2156	EXCEL.EXE	regsvr32.exe
PID 2156 wrote to memory of 3888	2156	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\cff7923202218d3ba27d14e9a84bf85d85d439855ae72ebcce7216610e8f25ec.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:2156

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci1.ocx
2⤵
- Process spawned unexpected child process
PID:4356

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci2.ocx
2⤵
- Process spawned unexpected child process
PID:3140

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci3.ocx
2⤵
- Process spawned unexpected child process
PID:3944

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci4.ocx
2⤵
- Process spawned unexpected child process
PID:3888

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/2156-114-0x00007FF8E6880000-0x00007FF8E6890000-memory.dmp

Filesize
64KB

Download
memory/2156-115-0x00007FF8E6880000-0x00007FF8E6890000-memory.dmp

Filesize
64KB

Download
memory/2156-116-0x00007FF8E6880000-0x00007FF8E6890000-memory.dmp

Filesize
64KB

Download
memory/2156-117-0x00007FF8E6880000-0x00007FF8E6890000-memory.dmp

Filesize
64KB

Download
memory/2156-126-0x00007FF8E3940000-0x00007FF8E3950000-memory.dmp

Filesize
64KB

Download
memory/2156-127-0x00007FF8E3940000-0x00007FF8E3950000-memory.dmp

Filesize
64KB

Download
memory/3140-251-0x0000000000000000-mapping.dmp

Download
memory/3888-253-0x0000000000000000-mapping.dmp

Download
memory/3944-252-0x0000000000000000-mapping.dmp

Download
memory/4356-250-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads