d38759a70a6486a9c569796f3bc3691ed891d12224120f25dae835021d1d133c

General

Target

d38759a70a6486a9c569796f3bc3691ed891d12224120f25dae835021d1d133c.xls
Size

70KB
MD5

4c1b619300f9381d73e30c3c31329f12
SHA1

88fcf4001332a7b6545b53cf2312637c11e683e2
SHA256

d38759a70a6486a9c569796f3bc3691ed891d12224120f25dae835021d1d133c
SHA512

495ed96b7422ff6f848897d496668fee351c3a24ecab7c6130b2847cf650219bc9e887999d2edd111be16b446c0124e53550ef38eb4cc6b84b311d503b1735a2
SSDEEP

1536:OhKpb8rGYrMPe3q7Q0XV5xtezE8vG8UM+e+hDcnTLiQrRTZws8EgE:uKpb8rGYrMPe3q7Q0XV5xtezE8vG8UMx

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	3444	2252	regsvr32.exe	82
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4532	2252	regsvr32.exe	82
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4484	2252	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 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
2252	EXCEL.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
2252	EXCEL.EXE
2252	EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
2252	EXCEL.EXE
2252	EXCEL.EXE
2252	EXCEL.EXE
2252	EXCEL.EXE
2252	EXCEL.EXE
2252	EXCEL.EXE
2252	EXCEL.EXE
2252	EXCEL.EXE
2252	EXCEL.EXE
2252	EXCEL.EXE
2252	EXCEL.EXE
2252	EXCEL.EXE

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2252 wrote to memory of 3444	2252	EXCEL.EXE	87
PID 2252 wrote to memory of 3444	2252	EXCEL.EXE	87
PID 2252 wrote to memory of 4532	2252	EXCEL.EXE	91
PID 2252 wrote to memory of 4532	2252	EXCEL.EXE	91
PID 2252 wrote to memory of 4484	2252	EXCEL.EXE	93
PID 2252 wrote to memory of 4484	2252	EXCEL.EXE	93

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\d38759a70a6486a9c569796f3bc3691ed891d12224120f25dae835021d1d133c.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:2252
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\cusoa1.ocx
  2⤵
  - Process spawned unexpected child process
  PID:3444
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\cusoa2.ocx
  2⤵
  - Process spawned unexpected child process
  PID:4532
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\cusoa3.ocx
  2⤵
  - Process spawned unexpected child process
  PID:4484

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
e50a10df89162befeb4529a6fc5dd9f8

SHA1
802e2ede4596a0c7156f1400a9f8bda14671a465

SHA256
85022ac88acc39645d18bd1ef1eefd013b3897b0bd88c80210f20640cba2849c

SHA512
b13135ce50ac279715be481ca7cf76d36d533adcda6407e0b4fad4a9d794dcc234e704797eaa896b0b303ede8aed236c624a7548fba10a6a1ee6b9a73c94ed38

Download Submit
memory/2252-12-0x00007FFC22490000-0x00007FFC22685000-memory.dmp

Filesize
2.0MB

Download
memory/2252-10-0x00007FFC22490000-0x00007FFC22685000-memory.dmp

Filesize
2.0MB

Download
memory/2252-0-0x00007FFBE2510000-0x00007FFBE2520000-memory.dmp

Filesize
64KB

Download
memory/2252-4-0x00007FFC22490000-0x00007FFC22685000-memory.dmp

Filesize
2.0MB

Download
memory/2252-6-0x00007FFC22490000-0x00007FFC22685000-memory.dmp

Filesize
2.0MB

Download
memory/2252-5-0x00007FFBE2510000-0x00007FFBE2520000-memory.dmp

Filesize
64KB

Download
memory/2252-7-0x00007FFBE2510000-0x00007FFBE2520000-memory.dmp

Filesize
64KB

Download
memory/2252-13-0x00007FFC22490000-0x00007FFC22685000-memory.dmp

Filesize
2.0MB

Download
memory/2252-1-0x00007FFBE2510000-0x00007FFBE2520000-memory.dmp

Filesize
64KB

Download
memory/2252-9-0x00007FFC22490000-0x00007FFC22685000-memory.dmp

Filesize
2.0MB

Download
memory/2252-3-0x00007FFC2252D000-0x00007FFC2252E000-memory.dmp

Filesize
4KB

Download
memory/2252-11-0x00007FFBE0220000-0x00007FFBE0230000-memory.dmp

Filesize
64KB

Download
memory/2252-8-0x00007FFC22490000-0x00007FFC22685000-memory.dmp

Filesize
2.0MB

Download
memory/2252-14-0x00007FFC22490000-0x00007FFC22685000-memory.dmp

Filesize
2.0MB

Download
memory/2252-15-0x00007FFC22490000-0x00007FFC22685000-memory.dmp

Filesize
2.0MB

Download
memory/2252-17-0x00007FFC22490000-0x00007FFC22685000-memory.dmp

Filesize
2.0MB

Download
memory/2252-18-0x00007FFC22490000-0x00007FFC22685000-memory.dmp

Filesize
2.0MB

Download
memory/2252-20-0x00007FFC22490000-0x00007FFC22685000-memory.dmp

Filesize
2.0MB

Download
memory/2252-21-0x00007FFC22490000-0x00007FFC22685000-memory.dmp

Filesize
2.0MB

Download
memory/2252-19-0x00007FFC22490000-0x00007FFC22685000-memory.dmp

Filesize
2.0MB

Download
memory/2252-16-0x00007FFBE0220000-0x00007FFBE0230000-memory.dmp

Filesize
64KB

Download
memory/2252-49-0x00007FFC22490000-0x00007FFC22685000-memory.dmp

Filesize
2.0MB

Download
memory/2252-2-0x00007FFBE2510000-0x00007FFBE2520000-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