6e3f7fbf88f0c06a06f7c3fa532eb76dc49819a18988ab866c98c246717e1e5e

General

Target

ZXL-2181.xlsm
Size

83KB
MD5

864eaed6a667c04ce8c4af621e4dfded
SHA1

49e79859df0b4b4042728ba2984bfd7b52c0fc16
SHA256

6e3f7fbf88f0c06a06f7c3fa532eb76dc49819a18988ab866c98c246717e1e5e
SHA512

aa6f4fa4ae8d6f0ad15c5939b975e0cd3ffc6d47f7ac41363a6fb91a62f115c78e4d0b0b19ff2b941272dd06a32b42145e8eda6f1ec7bd18974d7e3a7dbd83dc

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

http://www.crownpacificpartners.com/guglio/Rt4el/

Signatures

Process spawned unexpected child process 1 IoCs

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

Processes:

rundll32.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	8	3872	rundll32.exe	EXCEL.EXE

Blocklisted process makes network request 2 IoCs

Processes:

rundll32.exe

flow pid process

51 3884 rundll32.exe
52 3884 rundll32.exe
Downloads MZ/PE file
Loads dropped DLL 4 IoCs

Processes:

rundll32.exerundll32.exerundll32.exerundll32.exe

pid process

8 rundll32.exe
2196 rundll32.exe
1924 rundll32.exe
3884 rundll32.exe

flow	pid	process
51	3884	rundll32.exe
52	3884	rundll32.exe

pid	process
8	rundll32.exe
2196	rundll32.exe
1924	rundll32.exe
3884	rundll32.exe

Checks processor information in registry 2 TTPs 5 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

MusNotification.exeEXCEL.EXE

description	ioc	process
Key opened	\Registry\Machine\HARDWARE\DESCRIPTION\System\CentralProcessor\0	MusNotification.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	MusNotification.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
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

3872 EXCEL.EXE
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

rundll32.exe

pid process

3884 rundll32.exe
3884 rundll32.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

MusNotification.exe

description pid process

Token: SeShutdownPrivilege 1872 MusNotification.exe
Token: SeCreatePagefilePrivilege 1872 MusNotification.exe

pid	process
3884	rundll32.exe
3884	rundll32.exe

description	pid	process
Token: SeShutdownPrivilege	1872	MusNotification.exe
Token: SeCreatePagefilePrivilege	1872	MusNotification.exe

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
3872	EXCEL.EXE
3872	EXCEL.EXE
3872	EXCEL.EXE
3872	EXCEL.EXE
3872	EXCEL.EXE
3872	EXCEL.EXE
3872	EXCEL.EXE
3872	EXCEL.EXE
3872	EXCEL.EXE
3872	EXCEL.EXE
3872	EXCEL.EXE
3872	EXCEL.EXE

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

EXCEL.EXErundll32.exerundll32.exe

description	pid	process	target process
PID 3872 wrote to memory of 8	3872	EXCEL.EXE	rundll32.exe
PID 3872 wrote to memory of 8	3872	EXCEL.EXE	rundll32.exe
PID 3872 wrote to memory of 8	3872	EXCEL.EXE	rundll32.exe
PID 8 wrote to memory of 2196	8	rundll32.exe	rundll32.exe
PID 8 wrote to memory of 2196	8	rundll32.exe	rundll32.exe
PID 8 wrote to memory of 2196	8	rundll32.exe	rundll32.exe
PID 1924 wrote to memory of 3884	1924	rundll32.exe	rundll32.exe
PID 1924 wrote to memory of 3884	1924	rundll32.exe	rundll32.exe
PID 1924 wrote to memory of 3884	1924	rundll32.exe	rundll32.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\ZXL-2181.xlsm"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3872

C:\Windows\SysWow64\rundll32.exe
C:\Windows\SysWow64\rundll32.exe ..\erum.ocx,D"&"l"&"lR"&"egister"&"Serve"&"r
2⤵
- Process spawned unexpected child process
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:8

C:\Windows\SysWOW64\rundll32.exe
C:\Windows\SysWOW64\rundll32.exe "C:\Users\Admin\erum.ocx",DllRegisterServer
3⤵
- Loads dropped DLL
PID:2196

C:\Windows\SysWOW64\rundll32.exe
C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Ejqiounqrref\xuau.fup",SInieMIGKJ
4⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1924

C:\Windows\SysWOW64\rundll32.exe
C:\Windows\SysWOW64\rundll32.exe "C:\Windows\System32\Ejqiounqrref\xuau.fup",DllRegisterServer
5⤵
- Blocklisted process makes network request
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
PID:3884

C:\Windows\system32\MusNotification.exe
C:\Windows\system32\MusNotification.exe
1⤵
- Checks processor information in registry
- Suspicious use of AdjustPrivilegeToken
PID:1872

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\erum.ocx
MD5
7d01a3b0aa4b27e6f466dc8c321c1246

SHA1
84db079fbbf1001c479023bfc965837055b5c635

SHA256
4b0a7962f77a16ce4f7b348b841285508daf13451c11d52f8f6d8c2af9937dcc

SHA512
9ea6417d6b65301c3cd50cebb786610e40f360d58e2afb8e2cd45439de2acfa146a44064b106db7fa1bb9967272fae8649fe0b705d5167f15cc1ef3a1f080c11

Download Submit
C:\Users\Admin\erum.ocx
MD5
7d01a3b0aa4b27e6f466dc8c321c1246

SHA1
84db079fbbf1001c479023bfc965837055b5c635

SHA256
4b0a7962f77a16ce4f7b348b841285508daf13451c11d52f8f6d8c2af9937dcc

SHA512
9ea6417d6b65301c3cd50cebb786610e40f360d58e2afb8e2cd45439de2acfa146a44064b106db7fa1bb9967272fae8649fe0b705d5167f15cc1ef3a1f080c11

Download Submit
C:\Users\Admin\erum.ocx
MD5
7d01a3b0aa4b27e6f466dc8c321c1246

SHA1
84db079fbbf1001c479023bfc965837055b5c635

SHA256
4b0a7962f77a16ce4f7b348b841285508daf13451c11d52f8f6d8c2af9937dcc

SHA512
9ea6417d6b65301c3cd50cebb786610e40f360d58e2afb8e2cd45439de2acfa146a44064b106db7fa1bb9967272fae8649fe0b705d5167f15cc1ef3a1f080c11

Download Submit
C:\Windows\SysWOW64\Ejqiounqrref\xuau.fup
MD5
7d01a3b0aa4b27e6f466dc8c321c1246

SHA1
84db079fbbf1001c479023bfc965837055b5c635

SHA256
4b0a7962f77a16ce4f7b348b841285508daf13451c11d52f8f6d8c2af9937dcc

SHA512
9ea6417d6b65301c3cd50cebb786610e40f360d58e2afb8e2cd45439de2acfa146a44064b106db7fa1bb9967272fae8649fe0b705d5167f15cc1ef3a1f080c11

Download Submit
C:\Windows\SysWOW64\Ejqiounqrref\xuau.fup
MD5
7d01a3b0aa4b27e6f466dc8c321c1246

SHA1
84db079fbbf1001c479023bfc965837055b5c635

SHA256
4b0a7962f77a16ce4f7b348b841285508daf13451c11d52f8f6d8c2af9937dcc

SHA512
9ea6417d6b65301c3cd50cebb786610e40f360d58e2afb8e2cd45439de2acfa146a44064b106db7fa1bb9967272fae8649fe0b705d5167f15cc1ef3a1f080c11

Download Submit
memory/8-149-0x0000000000000000-mapping.dmp

Download
memory/8-153-0x0000000004445000-0x0000000004446000-memory.dmp

Filesize
4KB

Download
memory/8-152-0x0000000004421000-0x0000000004445000-memory.dmp

Filesize
144KB

Download
memory/1924-161-0x0000000004831000-0x0000000004855000-memory.dmp

Filesize
144KB

Download
memory/2196-154-0x0000000000000000-mapping.dmp

Download
memory/3872-143-0x0000020865130000-0x0000020865132000-memory.dmp

Filesize
8KB

Download
memory/3872-131-0x00007FF803FB0000-0x00007FF803FC0000-memory.dmp

Filesize
64KB

Download
memory/3872-142-0x0000020865130000-0x0000020865132000-memory.dmp

Filesize
8KB

Download
memory/3872-134-0x00007FF803FB0000-0x00007FF803FC0000-memory.dmp

Filesize
64KB

Download
memory/3872-144-0x0000020865130000-0x0000020865132000-memory.dmp

Filesize
8KB

Download
memory/3872-145-0x0000020865130000-0x0000020865132000-memory.dmp

Filesize
8KB

Download
memory/3872-146-0x0000020865130000-0x0000020865132000-memory.dmp

Filesize
8KB

Download
memory/3872-147-0x0000020865130000-0x0000020865132000-memory.dmp

Filesize
8KB

Download
memory/3872-148-0x0000020865130000-0x0000020865132000-memory.dmp

Filesize
8KB

Download
memory/3872-140-0x0000020865130000-0x0000020865132000-memory.dmp

Filesize
8KB

Download
memory/3872-133-0x00007FF803FB0000-0x00007FF803FC0000-memory.dmp

Filesize
64KB

Download
memory/3872-141-0x0000020865130000-0x0000020865132000-memory.dmp

Filesize
8KB

Download
memory/3872-177-0x0000020865130000-0x0000020865132000-memory.dmp

Filesize
8KB

Download
memory/3872-157-0x0000020865130000-0x0000020865132000-memory.dmp

Filesize
8KB

Download
memory/3872-139-0x0000020865130000-0x0000020865132000-memory.dmp

Filesize
8KB

Download
memory/3872-132-0x00007FF803FB0000-0x00007FF803FC0000-memory.dmp

Filesize
64KB

Download
memory/3872-156-0x0000020865130000-0x0000020865132000-memory.dmp

Filesize
8KB

Download
memory/3872-158-0x0000020865130000-0x0000020865132000-memory.dmp

Filesize
8KB

Download
memory/3872-138-0x0000020865130000-0x0000020865132000-memory.dmp

Filesize
8KB

Download
memory/3872-159-0x0000020865130000-0x0000020865132000-memory.dmp

Filesize
8KB

Download
memory/3872-130-0x00007FF803FB0000-0x00007FF803FC0000-memory.dmp

Filesize
64KB

Download
memory/3872-137-0x0000020865130000-0x0000020865132000-memory.dmp

Filesize
8KB

Download
memory/3872-135-0x0000020865130000-0x0000020865132000-memory.dmp

Filesize
8KB

Download
memory/3872-136-0x0000020865130000-0x0000020865132000-memory.dmp

Filesize
8KB

Download
memory/3884-165-0x0000000004B11000-0x0000000004B35000-memory.dmp

Filesize
144KB

Download
memory/3884-167-0x0000000005171000-0x0000000005195000-memory.dmp

Filesize
144KB

Download
memory/3884-169-0x0000000005261000-0x0000000005285000-memory.dmp

Filesize
144KB

Download
memory/3884-171-0x00000000052C1000-0x00000000052E5000-memory.dmp

Filesize
144KB

Download
memory/3884-173-0x00000000053B1000-0x00000000053D5000-memory.dmp

Filesize
144KB

Download
memory/3884-163-0x0000000000000000-mapping.dmp

Download
memory/3884-175-0x00000000054C1000-0x00000000054E5000-memory.dmp

Filesize
144KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads