35a52b2621177b4aad197f0a4ab16464e420b0841a05fb492343f679c155d953

General

Target

35a52b2621177b4aad197f0a4ab16464e420b0841a05fb492343f679c155d953.xls
Size

70KB
MD5

390284140e6bab4d86b2812e6669fed7
SHA1

182377530afdec0413ff4d070666b1c10b12fc4e
SHA256

35a52b2621177b4aad197f0a4ab16464e420b0841a05fb492343f679c155d953
SHA512

ea96d36abf545c6985e74982bb3ba17dc0a3e52e21e7b67e62afb40b3b397932d09ed27e9280d469f98235414701c998d51726e51efe299ab119ecc637cbf727
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	2644	4468	regsvr32.exe	82
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4144	4468	regsvr32.exe	82
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	2916	4468	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 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
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	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
4468	EXCEL.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
4468	EXCEL.EXE
4468	EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
4468	EXCEL.EXE
4468	EXCEL.EXE
4468	EXCEL.EXE
4468	EXCEL.EXE
4468	EXCEL.EXE
4468	EXCEL.EXE
4468	EXCEL.EXE
4468	EXCEL.EXE
4468	EXCEL.EXE
4468	EXCEL.EXE
4468	EXCEL.EXE
4468	EXCEL.EXE

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4468 wrote to memory of 2644	4468	EXCEL.EXE	85
PID 4468 wrote to memory of 2644	4468	EXCEL.EXE	85
PID 4468 wrote to memory of 4144	4468	EXCEL.EXE	87
PID 4468 wrote to memory of 4144	4468	EXCEL.EXE	87
PID 4468 wrote to memory of 2916	4468	EXCEL.EXE	88
PID 4468 wrote to memory of 2916	4468	EXCEL.EXE	88

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\35a52b2621177b4aad197f0a4ab16464e420b0841a05fb492343f679c155d953.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:4468
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\cusoa1.ocx
  2⤵
  - Process spawned unexpected child process
  PID:2644
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\cusoa2.ocx
  2⤵
  - Process spawned unexpected child process
  PID:4144
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\cusoa3.ocx
  2⤵
  - Process spawned unexpected child process
  PID:2916

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

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
1KB

MD5
eadee38e606364292179c3404d74fbeb

SHA1
b28291ad5b5f211e65868964dc5c08441233404f

SHA256
ee396fa6d274281069f78e402d23e2b54a891ee02de0ffc9408b945c0e63716c

SHA512
014c013c228c7a60d279a0cd96f0e7339fe3da1c9311895387bff1735a1af3c2ba853899df9000a7fa9dff8952a255ef927fb98f2ec90da4b39a78e387d0d55d

Download Submit
memory/4468-11-0x00007FF9A7830000-0x00007FF9A7A25000-memory.dmp

Filesize
2.0MB

Download
memory/4468-13-0x00007FF9650C0000-0x00007FF9650D0000-memory.dmp

Filesize
64KB

Download
memory/4468-2-0x00007FF9678B0000-0x00007FF9678C0000-memory.dmp

Filesize
64KB

Download
memory/4468-5-0x00007FF9A7830000-0x00007FF9A7A25000-memory.dmp

Filesize
2.0MB

Download
memory/4468-4-0x00007FF9678B0000-0x00007FF9678C0000-memory.dmp

Filesize
64KB

Download
memory/4468-6-0x00007FF9A7830000-0x00007FF9A7A25000-memory.dmp

Filesize
2.0MB

Download
memory/4468-9-0x00007FF9A7830000-0x00007FF9A7A25000-memory.dmp

Filesize
2.0MB

Download
memory/4468-1-0x00007FF9A78CD000-0x00007FF9A78CE000-memory.dmp

Filesize
4KB

Download
memory/4468-3-0x00007FF9678B0000-0x00007FF9678C0000-memory.dmp

Filesize
64KB

Download
memory/4468-12-0x00007FF9A7830000-0x00007FF9A7A25000-memory.dmp

Filesize
2.0MB

Download
memory/4468-8-0x00007FF9A7830000-0x00007FF9A7A25000-memory.dmp

Filesize
2.0MB

Download
memory/4468-10-0x00007FF9A7830000-0x00007FF9A7A25000-memory.dmp

Filesize
2.0MB

Download
memory/4468-14-0x00007FF9650C0000-0x00007FF9650D0000-memory.dmp

Filesize
64KB

Download
memory/4468-7-0x00007FF9678B0000-0x00007FF9678C0000-memory.dmp

Filesize
64KB

Download
memory/4468-24-0x00007FF9A7830000-0x00007FF9A7A25000-memory.dmp

Filesize
2.0MB

Download
memory/4468-25-0x00007FF9A78CD000-0x00007FF9A78CE000-memory.dmp

Filesize
4KB

Download
memory/4468-26-0x00007FF9A7830000-0x00007FF9A7A25000-memory.dmp

Filesize
2.0MB

Download
memory/4468-0-0x00007FF9678B0000-0x00007FF9678C0000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads