0bb8cb14c33b113b67ad0307cbf5a81e8beaa57d50253f6b556730dc6bc607ea

General

Target

0bb8cb14c33b113b67ad0307cbf5a81e8beaa57d50253f6b556730dc6bc607ea.xls
Size

70KB
MD5

77456b768c15d9ba0cb52e757c353532
SHA1

cf5ef1597896e64d2b98dffd64b293550c9f2e20
SHA256

0bb8cb14c33b113b67ad0307cbf5a81e8beaa57d50253f6b556730dc6bc607ea
SHA512

d081b7a0839aa406f8ead7262734833ebf8131ae0b4cf2a6c50276a9a04f44e1ef2114d06a4846ff2e5ba439bec2c5b9e24f67420cca48dd9b6dcd69205d4f31
SSDEEP

1536:OhKpb8rGYrMPe3q7Q0XV5xtezE8vG8UM+e+hDcnTLiQrRTZws8Eg0:uKpb8rGYrMPe3q7Q0XV5xtezE8vG8UMh

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

https://strachanclark.com/images/3gc4qCpSFYbBMDEC/

xlm40.dropper

https://synapse-archive.com/images/bKaMr/

xlm40.dropper

https://sumuvesa.com/wp-includes/rgL/

Signatures

Process spawned unexpected child process 3 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	2320	2260	regsvr32.exe	81
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1556	2260	regsvr32.exe	81
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	996	2260	regsvr32.exe	81

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
2260	EXCEL.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
2260	EXCEL.EXE
2260	EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
2260	EXCEL.EXE
2260	EXCEL.EXE
2260	EXCEL.EXE
2260	EXCEL.EXE
2260	EXCEL.EXE
2260	EXCEL.EXE
2260	EXCEL.EXE
2260	EXCEL.EXE
2260	EXCEL.EXE
2260	EXCEL.EXE
2260	EXCEL.EXE
2260	EXCEL.EXE

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2260 wrote to memory of 2320	2260	EXCEL.EXE	86
PID 2260 wrote to memory of 2320	2260	EXCEL.EXE	86
PID 2260 wrote to memory of 1556	2260	EXCEL.EXE	87
PID 2260 wrote to memory of 1556	2260	EXCEL.EXE	87
PID 2260 wrote to memory of 996	2260	EXCEL.EXE	91
PID 2260 wrote to memory of 996	2260	EXCEL.EXE	91

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\0bb8cb14c33b113b67ad0307cbf5a81e8beaa57d50253f6b556730dc6bc607ea.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:2260
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\cusoa1.ocx
  2⤵
  - Process spawned unexpected child process
  PID:2320
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\cusoa2.ocx
  2⤵
  - Process spawned unexpected child process
  PID:1556
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\cusoa3.ocx
  2⤵
  - Process spawned unexpected child process
  PID:996

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

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

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\b8ab77100df80ab2.customDestinations-ms

Filesize
3KB

MD5
2c63105a570848362577990dcf6df412

SHA1
f792b338ab88f2374261bb2b0abedc1f59206315

SHA256
676048a812d1dfa8ab7e1172688f0586cbdea5a9771de8294e555d57a51b34f4

SHA512
343b27f4316c506c334480032d972f93874d5026a9a81daf0c9b674d0a95f38fe0f277fc2b5033201ebf9b14f4c9a9e8772268ef8e8a9f43f459186ebd09c2f6

Download Submit
memory/2260-12-0x00007FFF14FD0000-0x00007FFF151C5000-memory.dmp

Filesize
2.0MB

Download
memory/2260-45-0x00007FFF1506D000-0x00007FFF1506E000-memory.dmp

Filesize
4KB

Download
memory/2260-0-0x00007FFED5050000-0x00007FFED5060000-memory.dmp

Filesize
64KB

Download
memory/2260-6-0x00007FFF14FD0000-0x00007FFF151C5000-memory.dmp

Filesize
2.0MB

Download
memory/2260-5-0x00007FFED5050000-0x00007FFED5060000-memory.dmp

Filesize
64KB

Download
memory/2260-4-0x00007FFF14FD0000-0x00007FFF151C5000-memory.dmp

Filesize
2.0MB

Download
memory/2260-10-0x00007FFF14FD0000-0x00007FFF151C5000-memory.dmp

Filesize
2.0MB

Download
memory/2260-15-0x00007FFED2800000-0x00007FFED2810000-memory.dmp

Filesize
64KB

Download
memory/2260-2-0x00007FFED5050000-0x00007FFED5060000-memory.dmp

Filesize
64KB

Download
memory/2260-1-0x00007FFF1506D000-0x00007FFF1506E000-memory.dmp

Filesize
4KB

Download
memory/2260-14-0x00007FFF14FD0000-0x00007FFF151C5000-memory.dmp

Filesize
2.0MB

Download
memory/2260-11-0x00007FFF14FD0000-0x00007FFF151C5000-memory.dmp

Filesize
2.0MB

Download
memory/2260-9-0x00007FFF14FD0000-0x00007FFF151C5000-memory.dmp

Filesize
2.0MB

Download
memory/2260-16-0x00007FFED2800000-0x00007FFED2810000-memory.dmp

Filesize
64KB

Download
memory/2260-8-0x00007FFF14FD0000-0x00007FFF151C5000-memory.dmp

Filesize
2.0MB

Download
memory/2260-7-0x00007FFED5050000-0x00007FFED5060000-memory.dmp

Filesize
64KB

Download
memory/2260-44-0x00007FFF14FD0000-0x00007FFF151C5000-memory.dmp

Filesize
2.0MB

Download
memory/2260-3-0x00007FFED5050000-0x00007FFED5060000-memory.dmp

Filesize
64KB

Download
memory/2260-46-0x00007FFF14FD0000-0x00007FFF151C5000-memory.dmp

Filesize
2.0MB

Download
memory/2260-13-0x00007FFF14FD0000-0x00007FFF151C5000-memory.dmp

Filesize
2.0MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads