cc53743aa144e2b7e237f8ca21c4c7bc51b8d1f3a4146faa14a1b8f906c43c18

General

Target

cc53743aa144e2b7e237f8ca21c4c7bc51b8d1f3a4146faa14a1b8f906c43c18.xlsm
Size

46KB
MD5

263f7c5e92d5130f7b9c6a5da622abfa
SHA1

92fad4c30637946d9ea711baf09e54fb0a9d4a22
SHA256

cc53743aa144e2b7e237f8ca21c4c7bc51b8d1f3a4146faa14a1b8f906c43c18
SHA512

b2dc4e9ec35f7920aa1b5b4b4aef4bbd3b0d0b7f252c1cd3957e1b0cda2cbfdc1de1e78a25f150e8107bc56364d263b4e13dc714aad6796067988a84f80981ef
SSDEEP

768:mo9DOevZCwrvtOzdDTKufT9nz0LTyY1NiMZFYpvrLeci3cr+Uh0VPPDks:mo9D+tT5fTR4Lh1NisFYBc3cr+UqVnDZ

Score

10^/10

discovery

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

http://dan-bau.com/wp-includes/css/dist/h2plh7xZso/

xlm40.dropper

https://advisereviews.com/wp-content/2NyZZiJ6KEzPPrbx/

Signatures

Process spawned unexpected child process 1 IoCs

This typically indicates the parent process was compromised via an exploit or macro.

Processes:

regsvr32.exe

description	pid	pid_target	Process	procid_target
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	2764	1028	regsvr32.exe	82

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

Processes:

regsvr32.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	regsvr32.exe

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

Processes:

EXCEL.EXE

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

Processes:

EXCEL.EXE

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

Processes:

EXCEL.EXE

pid	Process
1028	EXCEL.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

EXCEL.EXE

pid	Process
1028	EXCEL.EXE
1028	EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	Process
1028	EXCEL.EXE
1028	EXCEL.EXE
1028	EXCEL.EXE
1028	EXCEL.EXE
1028	EXCEL.EXE
1028	EXCEL.EXE
1028	EXCEL.EXE
1028	EXCEL.EXE
1028	EXCEL.EXE
1028	EXCEL.EXE
1028	EXCEL.EXE
1028	EXCEL.EXE

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

EXCEL.EXE

description	pid	Process	procid_target
PID 1028 wrote to memory of 2764	1028	EXCEL.EXE	87
PID 1028 wrote to memory of 2764	1028	EXCEL.EXE	87
PID 1028 wrote to memory of 2764	1028	EXCEL.EXE	87

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\cc53743aa144e2b7e237f8ca21c4c7bc51b8d1f3a4146faa14a1b8f906c43c18.xlsm"
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:1028
- C:\Windows\SysWow64\regsvr32.exe
  C:\Windows\SysWow64\regsvr32.exe /s ..\aew.ocx
  2⤵
  - Process spawned unexpected child process
  - System Location Discovery: System Language Discovery
  PID:2764

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

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

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
4e38acb2fa118501df6168aede328fcc

SHA1
d337c28aaded48b8dfcd69ca741218a40d94a57f

SHA256
79a1de05102a50d19fbb18a059738ac0c1cde6047ae68e3bfac9ce66da9a49d2

SHA512
847e3d29a0795917cba3f284877182d1cc0f0a5da5e5b2bfaf6d9ce01095ba255801ef792bf8d6f43ee97b975e8a0caa9cf8e7d2e10484180bc7177cbaf3a277

Download Submit
C:\Users\Admin\aew.ocx

Filesize
1KB

MD5
1326c16a18441423830933fbb3a6a290

SHA1
d62b5f0ec9ae7a82209938c347311519b9fc1084

SHA256
3bb40456027c77d05b991e4686f10e51739a6ebdca3e33ec5edcd1e2c28b34cf

SHA512
2b9076d43ccc836c89bcd4cc1946008b1d0268edf432d37659960f4ffb9836ca65e638b61305f374ba71b2fa21ac3210482c0e6287288e75bcd44d4fbeb3e528

Download Submit
memory/1028-11-0x00007FFC7BDB0000-0x00007FFC7BFA5000-memory.dmp

Filesize
2.0MB

Download
memory/1028-9-0x00007FFC7BDB0000-0x00007FFC7BFA5000-memory.dmp

Filesize
2.0MB

Download
memory/1028-0-0x00007FFC3BE30000-0x00007FFC3BE40000-memory.dmp

Filesize
64KB

Download
memory/1028-5-0x00007FFC7BDB0000-0x00007FFC7BFA5000-memory.dmp

Filesize
2.0MB

Download
memory/1028-10-0x00007FFC7BDB0000-0x00007FFC7BFA5000-memory.dmp

Filesize
2.0MB

Download
memory/1028-12-0x00007FFC7BDB0000-0x00007FFC7BFA5000-memory.dmp

Filesize
2.0MB

Download
memory/1028-3-0x00007FFC7BE4D000-0x00007FFC7BE4E000-memory.dmp

Filesize
4KB

Download
memory/1028-1-0x00007FFC3BE30000-0x00007FFC3BE40000-memory.dmp

Filesize
64KB

Download
memory/1028-13-0x00007FFC39C70000-0x00007FFC39C80000-memory.dmp

Filesize
64KB

Download
memory/1028-8-0x00007FFC7BDB0000-0x00007FFC7BFA5000-memory.dmp

Filesize
2.0MB

Download
memory/1028-7-0x00007FFC7BDB0000-0x00007FFC7BFA5000-memory.dmp

Filesize
2.0MB

Download
memory/1028-14-0x00007FFC39C70000-0x00007FFC39C80000-memory.dmp

Filesize
64KB

Download
memory/1028-6-0x00007FFC3BE30000-0x00007FFC3BE40000-memory.dmp

Filesize
64KB

Download
memory/1028-4-0x00007FFC3BE30000-0x00007FFC3BE40000-memory.dmp

Filesize
64KB

Download
memory/1028-32-0x00007FFC7BDB0000-0x00007FFC7BFA5000-memory.dmp

Filesize
2.0MB

Download
memory/1028-2-0x00007FFC3BE30000-0x00007FFC3BE40000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads