92b4b734be815421f0ea5631f80e5388147e6cf2daabf9bfeff61c8e16a78dd0

General

Target

92b4b734be815421f0ea5631f80e5388147e6cf2daabf9bfeff61c8e16a78dd0.xls
Size

91KB
MD5

c38157ab17f97bc72d9bb4ad15c98e7b
SHA1

235ce1d4e251d39ca43610594256a6813dfbd6f0
SHA256

92b4b734be815421f0ea5631f80e5388147e6cf2daabf9bfeff61c8e16a78dd0
SHA512

5bd296da55775c977d658867132eaa939c4c508cf032ff8854f61676bc0c476ce159daf9364a28eccfb175d5c2b81fe0593f09d9e8e49f1df94a0cd149d738e8
SSDEEP

1536:vKpb8rGYrMPe3q7Q0XV5xtezEsi8/dgHbCXuZH4gb4CEn9J4ZnX5:vKpb8rGYrMPe3q7Q0XV5xtezEsi8/dg9

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

https://datie-tw.com/img/O8G0RDZj7MYCuJyPoP/

xlm40.dropper

http://sbm.xinmoshiwang.com/upload/VaOfWEb3pW76UO/

xlm40.dropper

https://copunupo.ac.zm/cgi-bin/WFFcGx/

xlm40.dropper

http://ly.yjlianyi.top/wp-admin/4cChao/

Signatures

Process spawned unexpected child process 4 IoCs

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

Processes:

regsvr32.exeregsvr32.exeregsvr32.exeregsvr32.exe

description	pid	pid_target	process	target process
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4412	412	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	812	412	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3232	412	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3120	412	regsvr32.exe	EXCEL.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 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

Processes:

EXCEL.EXE

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

Processes:

EXCEL.EXE

pid process

412 EXCEL.EXE
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

EXCEL.EXE

pid process

412 EXCEL.EXE
412 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
412	EXCEL.EXE
412	EXCEL.EXE
412	EXCEL.EXE
412	EXCEL.EXE
412	EXCEL.EXE
412	EXCEL.EXE
412	EXCEL.EXE
412	EXCEL.EXE
412	EXCEL.EXE
412	EXCEL.EXE
412	EXCEL.EXE
412	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 412 wrote to memory of 4412	412	EXCEL.EXE	regsvr32.exe
PID 412 wrote to memory of 4412	412	EXCEL.EXE	regsvr32.exe
PID 412 wrote to memory of 812	412	EXCEL.EXE	regsvr32.exe
PID 412 wrote to memory of 812	412	EXCEL.EXE	regsvr32.exe
PID 412 wrote to memory of 3232	412	EXCEL.EXE	regsvr32.exe
PID 412 wrote to memory of 3232	412	EXCEL.EXE	regsvr32.exe
PID 412 wrote to memory of 3120	412	EXCEL.EXE	regsvr32.exe
PID 412 wrote to memory of 3120	412	EXCEL.EXE	regsvr32.exe

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\92b4b734be815421f0ea5631f80e5388147e6cf2daabf9bfeff61c8e16a78dd0.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:412
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\elv1.ooocccxxx
  2⤵
  - Process spawned unexpected child process
  PID:4412
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\elv2.ooocccxxx
  2⤵
  - Process spawned unexpected child process
  PID:812
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\elv3.ooocccxxx
  2⤵
  - Process spawned unexpected child process
  PID:3232
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\elv4.ooocccxxx
  2⤵
  - Process spawned unexpected child process
  PID:3120

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

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Downloads

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

Filesize
1KB

MD5
103fe5d6b7d784c40a5424d9d98edfd2

SHA1
2cac693d83775c6b69a05e98e28d5f66e4afc5a1

SHA256
a104c8a647d95b2464e9ce1d4c892587c7342b872f333848602869b47daee71d

SHA512
9a8e224068300a6b5841d7d4668de996997ba3bf83c2d8b66ea1f110bb3d8998ba3764977c5df07fdf72e01c7ab7d7e7c836d80d07ab69e23d9bce1354897b8b

Download Submit
memory/412-13-0x00007FF9B5270000-0x00007FF9B5280000-memory.dmp

Filesize
64KB

Download
memory/412-1-0x00007FF9B7BD0000-0x00007FF9B7BE0000-memory.dmp

Filesize
64KB

Download
memory/412-10-0x00007FF9F7B50000-0x00007FF9F7D45000-memory.dmp

Filesize
2.0MB

Download
memory/412-5-0x00007FF9F7B50000-0x00007FF9F7D45000-memory.dmp

Filesize
2.0MB

Download
memory/412-6-0x00007FF9F7B50000-0x00007FF9F7D45000-memory.dmp

Filesize
2.0MB

Download
memory/412-7-0x00007FF9B7BD0000-0x00007FF9B7BE0000-memory.dmp

Filesize
64KB

Download
memory/412-8-0x00007FF9F7B50000-0x00007FF9F7D45000-memory.dmp

Filesize
2.0MB

Download
memory/412-4-0x00007FF9B7BD0000-0x00007FF9B7BE0000-memory.dmp

Filesize
64KB

Download
memory/412-9-0x00007FF9B5270000-0x00007FF9B5280000-memory.dmp

Filesize
64KB

Download
memory/412-14-0x00007FF9F7B50000-0x00007FF9F7D45000-memory.dmp

Filesize
2.0MB

Download
memory/412-2-0x00007FF9B7BD0000-0x00007FF9B7BE0000-memory.dmp

Filesize
64KB

Download
memory/412-3-0x00007FF9B7BD0000-0x00007FF9B7BE0000-memory.dmp

Filesize
64KB

Download
memory/412-11-0x00007FF9F7B50000-0x00007FF9F7D45000-memory.dmp

Filesize
2.0MB

Download
memory/412-15-0x00007FF9F7B50000-0x00007FF9F7D45000-memory.dmp

Filesize
2.0MB

Download
memory/412-18-0x00007FF9F7B50000-0x00007FF9F7D45000-memory.dmp

Filesize
2.0MB

Download
memory/412-19-0x00007FF9F7B50000-0x00007FF9F7D45000-memory.dmp

Filesize
2.0MB

Download
memory/412-17-0x00007FF9F7B50000-0x00007FF9F7D45000-memory.dmp

Filesize
2.0MB

Download
memory/412-16-0x00007FF9F7B50000-0x00007FF9F7D45000-memory.dmp

Filesize
2.0MB

Download
memory/412-12-0x00007FF9F7B50000-0x00007FF9F7D45000-memory.dmp

Filesize
2.0MB

Download
memory/412-35-0x00007FF9F7B50000-0x00007FF9F7D45000-memory.dmp

Filesize
2.0MB

Download
memory/412-36-0x00007FF9F7BED000-0x00007FF9F7BEE000-memory.dmp

Filesize
4KB

Download
memory/412-37-0x00007FF9F7B50000-0x00007FF9F7D45000-memory.dmp

Filesize
2.0MB

Download
memory/412-0-0x00007FF9F7BED000-0x00007FF9F7BEE000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads