b2bca23e6a498ac26af5b12533adc2b5650f277e99bd4327355f0708fb863036

General

Target

b2bca23e6a498ac26af5b12533adc2b5650f277e99bd4327355f0708fb863036.xls
Size

70KB
MD5

26c57028eced8e9163734c1b964ffab5
SHA1

a42fd40e565eb19121b2e5bcc6973cb54488e8d2
SHA256

b2bca23e6a498ac26af5b12533adc2b5650f277e99bd4327355f0708fb863036
SHA512

05f1fb406278d0cc6d843bd5d60a3155931691a9ad65d0f3a2892ed70ffb3fac9747e8c3fe66bf4a10f5870a8c25a9bca967f31f1ffe36c645de68507b91753c
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	3304	4016	regsvr32.exe	81
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	2664	4016	regsvr32.exe	81
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	320	4016	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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	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
4016	EXCEL.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
4016	EXCEL.EXE
4016	EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
4016	EXCEL.EXE
4016	EXCEL.EXE
4016	EXCEL.EXE
4016	EXCEL.EXE
4016	EXCEL.EXE
4016	EXCEL.EXE
4016	EXCEL.EXE
4016	EXCEL.EXE
4016	EXCEL.EXE
4016	EXCEL.EXE
4016	EXCEL.EXE
4016	EXCEL.EXE

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4016 wrote to memory of 3304	4016	EXCEL.EXE	86
PID 4016 wrote to memory of 3304	4016	EXCEL.EXE	86
PID 4016 wrote to memory of 2664	4016	EXCEL.EXE	87
PID 4016 wrote to memory of 2664	4016	EXCEL.EXE	87
PID 4016 wrote to memory of 320	4016	EXCEL.EXE	88
PID 4016 wrote to memory of 320	4016	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\b2bca23e6a498ac26af5b12533adc2b5650f277e99bd4327355f0708fb863036.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:4016
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\cusoa1.ocx
  2⤵
  - Process spawned unexpected child process
  PID:3304
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\cusoa2.ocx
  2⤵
  - Process spawned unexpected child process
  PID:2664
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\cusoa3.ocx
  2⤵
  - Process spawned unexpected child process
  PID:320

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
667B

MD5
27c983c51cbc61cc157106a6aa7a3ffd

SHA1
9f0fc12003cbefc41433ec02504228bb921ac990

SHA256
e633ab582f14b715b204e36a2dafb9fb2c8e57bd54c709c123535482cd0b12b9

SHA512
7a667392f3b302ba0c16d185154d7618c004921ce1d6bcc1b555f0768d674a2cc00c57a44e6866992e673c10cd17ee4eb884c88eb5482e89f9caf6d694d207a9

Download Submit
memory/4016-10-0x00007FFC9CBB0000-0x00007FFC9CDA5000-memory.dmp

Filesize
2.0MB

Download
memory/4016-13-0x00007FFC9CBB0000-0x00007FFC9CDA5000-memory.dmp

Filesize
2.0MB

Download
memory/4016-5-0x00007FFC9CBB0000-0x00007FFC9CDA5000-memory.dmp

Filesize
2.0MB

Download
memory/4016-6-0x00007FFC9CBB0000-0x00007FFC9CDA5000-memory.dmp

Filesize
2.0MB

Download
memory/4016-7-0x00007FFC5CC30000-0x00007FFC5CC40000-memory.dmp

Filesize
64KB

Download
memory/4016-4-0x00007FFC5CC30000-0x00007FFC5CC40000-memory.dmp

Filesize
64KB

Download
memory/4016-2-0x00007FFC5CC30000-0x00007FFC5CC40000-memory.dmp

Filesize
64KB

Download
memory/4016-17-0x00007FFC9CBB0000-0x00007FFC9CDA5000-memory.dmp

Filesize
2.0MB

Download
memory/4016-0-0x00007FFC9CC4D000-0x00007FFC9CC4E000-memory.dmp

Filesize
4KB

Download
memory/4016-14-0x00007FFC5A2D0000-0x00007FFC5A2E0000-memory.dmp

Filesize
64KB

Download
memory/4016-3-0x00007FFC5CC30000-0x00007FFC5CC40000-memory.dmp

Filesize
64KB

Download
memory/4016-12-0x00007FFC9CBB0000-0x00007FFC9CDA5000-memory.dmp

Filesize
2.0MB

Download
memory/4016-11-0x00007FFC9CBB0000-0x00007FFC9CDA5000-memory.dmp

Filesize
2.0MB

Download
memory/4016-18-0x00007FFC9CBB0000-0x00007FFC9CDA5000-memory.dmp

Filesize
2.0MB

Download
memory/4016-16-0x00007FFC9CBB0000-0x00007FFC9CDA5000-memory.dmp

Filesize
2.0MB

Download
memory/4016-15-0x00007FFC5A2D0000-0x00007FFC5A2E0000-memory.dmp

Filesize
64KB

Download
memory/4016-9-0x00007FFC9CBB0000-0x00007FFC9CDA5000-memory.dmp

Filesize
2.0MB

Download
memory/4016-8-0x00007FFC9CBB0000-0x00007FFC9CDA5000-memory.dmp

Filesize
2.0MB

Download
memory/4016-30-0x00007FFC9CBB0000-0x00007FFC9CDA5000-memory.dmp

Filesize
2.0MB

Download
memory/4016-31-0x00007FFC9CC4D000-0x00007FFC9CC4E000-memory.dmp

Filesize
4KB

Download
memory/4016-32-0x00007FFC9CBB0000-0x00007FFC9CDA5000-memory.dmp

Filesize
2.0MB

Download
memory/4016-33-0x00007FFC9CBB0000-0x00007FFC9CDA5000-memory.dmp

Filesize
2.0MB

Download
memory/4016-1-0x00007FFC5CC30000-0x00007FFC5CC40000-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