97dd57ab7c41c77cb91d57bd76ff8520489a51b9fde460c0615e80454e5946f0

General

Target

97dd57ab7c41c77cb91d57bd76ff8520489a51b9fde460c0615e80454e5946f0.xls
Size

70KB
MD5

a8cdd71a291739b92f0f529e0da8001d
SHA1

30437578ef7d557006c6d0dead916ac5c8991f42
SHA256

97dd57ab7c41c77cb91d57bd76ff8520489a51b9fde460c0615e80454e5946f0
SHA512

53ff2ab69c89f62acd8edf93df5e78727ed69d33e175e001c3cfcdd9a4539991d2de91610245edd672ebb6acd11f15c2728c37822f3c294caee0acc8b6e30e00
SSDEEP

1536:OhKpb8rGYrMPe3q7Q0XV5xtezE8vG8UM+KJ+hDcnTLiQrRTZws8Eo:uKpb8rGYrMPe3q7Q0XV5xtezE8vG8UM2

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

https://sacvasanth.com/public/lyP2lh1hlJr/

xlm40.dropper

https://webguruindia.com/theme/wTbEyLVvMNB3j/

xlm40.dropper

http://stockmorehouse.com/Casa_Grande/AS4VPkTsOqWDGGO/

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	4356	1684	regsvr32.exe	82
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3764	1684	regsvr32.exe	82
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3036	1684	regsvr32.exe	82

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 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

pid	Process
1684	EXCEL.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
1684	EXCEL.EXE
1684	EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
1684	EXCEL.EXE
1684	EXCEL.EXE
1684	EXCEL.EXE
1684	EXCEL.EXE
1684	EXCEL.EXE
1684	EXCEL.EXE
1684	EXCEL.EXE
1684	EXCEL.EXE
1684	EXCEL.EXE
1684	EXCEL.EXE
1684	EXCEL.EXE
1684	EXCEL.EXE

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1684 wrote to memory of 4356	1684	EXCEL.EXE	87
PID 1684 wrote to memory of 4356	1684	EXCEL.EXE	87
PID 1684 wrote to memory of 3764	1684	EXCEL.EXE	88
PID 1684 wrote to memory of 3764	1684	EXCEL.EXE	88
PID 1684 wrote to memory of 3036	1684	EXCEL.EXE	90
PID 1684 wrote to memory of 3036	1684	EXCEL.EXE	90

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\97dd57ab7c41c77cb91d57bd76ff8520489a51b9fde460c0615e80454e5946f0.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:1684
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\cusoa1.ocx
  2⤵
  - Process spawned unexpected child process
  PID:4356
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\cusoa2.ocx
  2⤵
  - Process spawned unexpected child process
  PID:3764
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\cusoa3.ocx
  2⤵
  - Process spawned unexpected child process
  PID:3036

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
d6b3c7714987eeea6c3f366a288ea41f

SHA1
63d56e736b48d4efd2634985abd722d1da130706

SHA256
7778d6c41c8e73ba9bee774ccd19b8069f166912d8ee43cbfa2af4bd05e022d8

SHA512
09eae8974fe4f29b39d300a199f17fb4e637fd6cf85559c8fe8e3aea0ae56a69d50231269ea9d10fbe2a5951f2923505850f46fbbb0a09d48820ee2723326bca

Download Submit
memory/1684-19-0x00007FF9E6770000-0x00007FF9E6780000-memory.dmp

Filesize
64KB

Download
memory/1684-16-0x00007FFA28B50000-0x00007FFA28D45000-memory.dmp

Filesize
2.0MB

Download
memory/1684-0-0x00007FFA28BED000-0x00007FFA28BEE000-memory.dmp

Filesize
4KB

Download
memory/1684-6-0x00007FFA28B50000-0x00007FFA28D45000-memory.dmp

Filesize
2.0MB

Download
memory/1684-9-0x00007FFA28B50000-0x00007FFA28D45000-memory.dmp

Filesize
2.0MB

Download
memory/1684-8-0x00007FF9E8BD0000-0x00007FF9E8BE0000-memory.dmp

Filesize
64KB

Download
memory/1684-12-0x00007FFA28B50000-0x00007FFA28D45000-memory.dmp

Filesize
2.0MB

Download
memory/1684-14-0x00007FFA28B50000-0x00007FFA28D45000-memory.dmp

Filesize
2.0MB

Download
memory/1684-2-0x00007FF9E8BD0000-0x00007FF9E8BE0000-memory.dmp

Filesize
64KB

Download
memory/1684-17-0x00007FFA28B50000-0x00007FFA28D45000-memory.dmp

Filesize
2.0MB

Download
memory/1684-1-0x00007FF9E8BD0000-0x00007FF9E8BE0000-memory.dmp

Filesize
64KB

Download
memory/1684-18-0x00007FF9E6770000-0x00007FF9E6780000-memory.dmp

Filesize
64KB

Download
memory/1684-15-0x00007FFA28B50000-0x00007FFA28D45000-memory.dmp

Filesize
2.0MB

Download
memory/1684-13-0x00007FFA28B50000-0x00007FFA28D45000-memory.dmp

Filesize
2.0MB

Download
memory/1684-11-0x00007FFA28B50000-0x00007FFA28D45000-memory.dmp

Filesize
2.0MB

Download
memory/1684-10-0x00007FFA28B50000-0x00007FFA28D45000-memory.dmp

Filesize
2.0MB

Download
memory/1684-7-0x00007FFA28B50000-0x00007FFA28D45000-memory.dmp

Filesize
2.0MB

Download
memory/1684-5-0x00007FFA28B50000-0x00007FFA28D45000-memory.dmp

Filesize
2.0MB

Download
memory/1684-4-0x00007FF9E8BD0000-0x00007FF9E8BE0000-memory.dmp

Filesize
64KB

Download
memory/1684-26-0x00007FFA28BED000-0x00007FFA28BEE000-memory.dmp

Filesize
4KB

Download
memory/1684-30-0x00007FFA28B50000-0x00007FFA28D45000-memory.dmp

Filesize
2.0MB

Download
memory/1684-31-0x00007FFA28B50000-0x00007FFA28D45000-memory.dmp

Filesize
2.0MB

Download
memory/1684-3-0x00007FF9E8BD0000-0x00007FF9E8BE0000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads