079429b23d25237acae93fbff18cd1acc74e0b941ee91c9a03d04a7f9d7aab65

Analysis

max time kernel
178s
max time network
191s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
23-11-2022 14:40

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General

Target

079429B23D25237ACAE93FBFF18CD1ACC74E0B941EE91C9A03D04A7F9D7AAB65.xls
Size

91KB
MD5

a9544b3094b520cc3f8f6acf18952623
SHA1

2e1610442c5e4da7d1ed1f810123c68234c076c9
SHA256

079429b23d25237acae93fbff18cd1acc74e0b941ee91c9a03d04a7f9d7aab65
SHA512

5776b55a9ee7878799d28a9fdce7b1f283e56971f1654a47a697a665456732ce689ad79dd41cea1b15e0d0050f272d92ed91389bf819278db10bfd7b999e0897
SSDEEP

1536:vKpb8rGYrMPe3q7Q0XV5xtezEsi8/dgHbCXuZH4gb4CEn9J4ZHX5:vKpb8rGYrMPe3q7Q0XV5xtezEsi8/dgd

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/

Signatures

Process spawned unexpected child process 2 IoCs

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

Processes:

regsvr32.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	3272	1512	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1980	1512	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

1512 EXCEL.EXE

Suspicious use of SetWindowsHookEx 13 IoCs

Processes:

EXCEL.EXE

pid	process
1512	EXCEL.EXE
1512	EXCEL.EXE
1512	EXCEL.EXE
1512	EXCEL.EXE
1512	EXCEL.EXE
1512	EXCEL.EXE
1512	EXCEL.EXE
1512	EXCEL.EXE
1512	EXCEL.EXE
1512	EXCEL.EXE
1512	EXCEL.EXE
1512	EXCEL.EXE
1512	EXCEL.EXE

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 1512 wrote to memory of 3272	1512	EXCEL.EXE	regsvr32.exe
PID 1512 wrote to memory of 3272	1512	EXCEL.EXE	regsvr32.exe
PID 1512 wrote to memory of 1980	1512	EXCEL.EXE	regsvr32.exe
PID 1512 wrote to memory of 1980	1512	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\079429B23D25237ACAE93FBFF18CD1ACC74E0B941EE91C9A03D04A7F9D7AAB65.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1512

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\elv1.ooocccxxx
2⤵
- Process spawned unexpected child process
PID:3272

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\elv2.ooocccxxx
2⤵
- Process spawned unexpected child process
PID:1980

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/1512-132-0x00007FFB3C790000-0x00007FFB3C7A0000-memory.dmp

Filesize
64KB

Download
memory/1512-133-0x00007FFB3C790000-0x00007FFB3C7A0000-memory.dmp

Filesize
64KB

Download
memory/1512-134-0x00007FFB3C790000-0x00007FFB3C7A0000-memory.dmp

Filesize
64KB

Download
memory/1512-135-0x00007FFB3C790000-0x00007FFB3C7A0000-memory.dmp

Filesize
64KB

Download
memory/1512-136-0x00007FFB3C790000-0x00007FFB3C7A0000-memory.dmp

Filesize
64KB

Download
memory/1512-137-0x00007FFB3A6D0000-0x00007FFB3A6E0000-memory.dmp

Filesize
64KB

Download
memory/1512-138-0x00007FFB3A6D0000-0x00007FFB3A6E0000-memory.dmp

Filesize
64KB

Download
memory/1980-140-0x0000000000000000-mapping.dmp

Download
memory/3272-139-0x0000000000000000-mapping.dmp

Download