a964cf185f84f6b3a71317a5a98d97500dd8d8ba62de281dd2fc468c37a33e82

General

Target

a964cf185f84f6b3a71317a5a98d97500dd8d8ba62de281dd2fc468c37a33e82.xls
Size

70KB
MD5

7d3fccce6c25a8db6579065552df05ea
SHA1

594d6c80f1eeff4c8794ae690f79335d1b292124
SHA256

a964cf185f84f6b3a71317a5a98d97500dd8d8ba62de281dd2fc468c37a33e82
SHA512

5bb63e6921e707da71246c4d432d492c7c9f88699623c6997864663db0d93fd37e1116b94226e502a0b5ca4ff807c3e59375a36adca1c6ecc3a70cba6c29eca3
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	3676	1476	regsvr32.exe	82
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3456	1476	regsvr32.exe	82
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1336	1476	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\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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
1476	EXCEL.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
1476	EXCEL.EXE
1476	EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
1476	EXCEL.EXE
1476	EXCEL.EXE
1476	EXCEL.EXE
1476	EXCEL.EXE
1476	EXCEL.EXE
1476	EXCEL.EXE
1476	EXCEL.EXE
1476	EXCEL.EXE
1476	EXCEL.EXE
1476	EXCEL.EXE
1476	EXCEL.EXE
1476	EXCEL.EXE

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1476 wrote to memory of 3676	1476	EXCEL.EXE	87
PID 1476 wrote to memory of 3676	1476	EXCEL.EXE	87
PID 1476 wrote to memory of 3456	1476	EXCEL.EXE	88
PID 1476 wrote to memory of 3456	1476	EXCEL.EXE	88
PID 1476 wrote to memory of 1336	1476	EXCEL.EXE	91
PID 1476 wrote to memory of 1336	1476	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\a964cf185f84f6b3a71317a5a98d97500dd8d8ba62de281dd2fc468c37a33e82.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:1476
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\cusoa1.ocx
  2⤵
  - Process spawned unexpected child process
  PID:3676
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\cusoa2.ocx
  2⤵
  - Process spawned unexpected child process
  PID:3456
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\cusoa3.ocx
  2⤵
  - Process spawned unexpected child process
  PID:1336

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
2KB

MD5
b9314c3b5ee0cd87c2cdba420ea6bef0

SHA1
b79439ed60ab494c71d4472e06e9e029deea20a5

SHA256
e4fbce0de6acd8060758914961a26d109a7d96c45c7530fdfcd133eceed7d7a5

SHA512
534b8ca6baf9ae1ae4a77338148a7c78d5cfa878df5484d9478b13f8b032a59705403daea8514cf3df5638d58d43162169072345ae7c77d8348f3c22580d39f3

Download Submit
memory/1476-11-0x00007FF8654B0000-0x00007FF8656A5000-memory.dmp

Filesize
2.0MB

Download
memory/1476-14-0x00007FF8234D0000-0x00007FF8234E0000-memory.dmp

Filesize
64KB

Download
memory/1476-0-0x00007FF825530000-0x00007FF825540000-memory.dmp

Filesize
64KB

Download
memory/1476-4-0x00007FF8654B0000-0x00007FF8656A5000-memory.dmp

Filesize
2.0MB

Download
memory/1476-6-0x00007FF8654B0000-0x00007FF8656A5000-memory.dmp

Filesize
2.0MB

Download
memory/1476-5-0x00007FF825530000-0x00007FF825540000-memory.dmp

Filesize
64KB

Download
memory/1476-7-0x00007FF825530000-0x00007FF825540000-memory.dmp

Filesize
64KB

Download
memory/1476-8-0x00007FF8654B0000-0x00007FF8656A5000-memory.dmp

Filesize
2.0MB

Download
memory/1476-9-0x00007FF8234D0000-0x00007FF8234E0000-memory.dmp

Filesize
64KB

Download
memory/1476-1-0x00007FF86554D000-0x00007FF86554E000-memory.dmp

Filesize
4KB

Download
memory/1476-3-0x00007FF825530000-0x00007FF825540000-memory.dmp

Filesize
64KB

Download
memory/1476-16-0x00007FF8654B0000-0x00007FF8656A5000-memory.dmp

Filesize
2.0MB

Download
memory/1476-13-0x00007FF8654B0000-0x00007FF8656A5000-memory.dmp

Filesize
2.0MB

Download
memory/1476-17-0x00007FF8654B0000-0x00007FF8656A5000-memory.dmp

Filesize
2.0MB

Download
memory/1476-15-0x00007FF8654B0000-0x00007FF8656A5000-memory.dmp

Filesize
2.0MB

Download
memory/1476-12-0x00007FF8654B0000-0x00007FF8656A5000-memory.dmp

Filesize
2.0MB

Download
memory/1476-10-0x00007FF8654B0000-0x00007FF8656A5000-memory.dmp

Filesize
2.0MB

Download
memory/1476-45-0x00007FF8654B0000-0x00007FF8656A5000-memory.dmp

Filesize
2.0MB

Download
memory/1476-46-0x00007FF86554D000-0x00007FF86554E000-memory.dmp

Filesize
4KB

Download
memory/1476-47-0x00007FF8654B0000-0x00007FF8656A5000-memory.dmp

Filesize
2.0MB

Download
memory/1476-2-0x00007FF825530000-0x00007FF825540000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads