f235fa15b3d945d5b4b7625beba2afef778b451ef39c00978a9c889862221a19

General

Target

f235fa15b3d945d5b4b7625beba2afef778b451ef39c00978a9c889862221a19.xls
Size

217KB
MD5

cb7a96d7601d75a6f15fea1271eebe77
SHA1

e852b45765fd98423f2e21e8ac613cbf18805cc5
SHA256

f235fa15b3d945d5b4b7625beba2afef778b451ef39c00978a9c889862221a19
SHA512

0ab889ea6416513a7df3dd3989fa0866645a316627d3c17a96b38910bc496497e78fecbb9520cbe941268a2797d5df24e4bc879415bb8b7b3818f9173cc604f6
SSDEEP

6144:zKpb8rGYrMPe3q7Q0XV5xtuEsi8/dgXyY+TAQXTHGUMEyP5p6f5jQmG:DbGUMVWlbG

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

https://barkstage.es/wp-content/0E7NdYl7TZuHMJq7/

xlm40.dropper

http://contactworks.nl/images_old/NuEAhfF0PCFhvv/

xlm40.dropper

http://www.iam.ch/wp-content/cache/minify/O1OAjWnfen/

xlm40.dropper

https://www.elaboro.pl/wp-admin/J0hwyIMsk9YFIi/

Signatures

Process spawned unexpected child process 4 IoCs

This typically indicates the parent process was compromised via an exploit or macro.

description	pid	pid_target	Process	procid_target
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	2608	3084	regsvr32.exe	65
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3224	3084	regsvr32.exe	65
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4404	3084	regsvr32.exe	65
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4328	3084	regsvr32.exe	65

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

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

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

pid	Process
3084	EXCEL.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
3084	EXCEL.EXE
3084	EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
3084	EXCEL.EXE
3084	EXCEL.EXE
3084	EXCEL.EXE
3084	EXCEL.EXE
3084	EXCEL.EXE
3084	EXCEL.EXE
3084	EXCEL.EXE
3084	EXCEL.EXE
3084	EXCEL.EXE
3084	EXCEL.EXE
3084	EXCEL.EXE
3084	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 3084 wrote to memory of 2608	3084	EXCEL.EXE	68
PID 3084 wrote to memory of 2608	3084	EXCEL.EXE	68
PID 3084 wrote to memory of 3224	3084	EXCEL.EXE	69
PID 3084 wrote to memory of 3224	3084	EXCEL.EXE	69
PID 3084 wrote to memory of 4404	3084	EXCEL.EXE	70
PID 3084 wrote to memory of 4404	3084	EXCEL.EXE	70
PID 3084 wrote to memory of 4328	3084	EXCEL.EXE	71
PID 3084 wrote to memory of 4328	3084	EXCEL.EXE	71

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\f235fa15b3d945d5b4b7625beba2afef778b451ef39c00978a9c889862221a19.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:3084
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\oxnv1.ooccxx
  2⤵
  - Process spawned unexpected child process
  PID:2608
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\oxnv2.ooccxx
  2⤵
  - Process spawned unexpected child process
  PID:3224
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\oxnv3.ooccxx
  2⤵
  - Process spawned unexpected child process
  PID:4404
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\oxnv4.ooccxx
  2⤵
  - Process spawned unexpected child process
  PID:4328

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/3084-121-0x00007FFEC81E0000-0x00007FFEC81F0000-memory.dmp

Filesize
64KB

Download
memory/3084-120-0x00007FFEC81E0000-0x00007FFEC81F0000-memory.dmp

Filesize
64KB

Download
memory/3084-118-0x00007FFEC81E0000-0x00007FFEC81F0000-memory.dmp

Filesize
64KB

Download
memory/3084-130-0x00007FFEC4670000-0x00007FFEC4680000-memory.dmp

Filesize
64KB

Download
memory/3084-131-0x00007FFEC4670000-0x00007FFEC4680000-memory.dmp

Filesize
64KB

Download
memory/3084-119-0x00007FFEC81E0000-0x00007FFEC81F0000-memory.dmp

Filesize
64KB

Download
memory/3084-314-0x00007FFEC81E0000-0x00007FFEC81F0000-memory.dmp

Filesize
64KB

Download
memory/3084-315-0x00007FFEC81E0000-0x00007FFEC81F0000-memory.dmp

Filesize
64KB

Download
memory/3084-316-0x00007FFEC81E0000-0x00007FFEC81F0000-memory.dmp

Filesize
64KB

Download
memory/3084-317-0x00007FFEC81E0000-0x00007FFEC81F0000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads