fb51ebfd72054de8cbd7f74a05ce8d3cce650a9224c21504077cce9e86ae6fd1

General

Target

fb51ebfd72054de8cbd7f74a05ce8d3cce650a9224c21504077cce9e86ae6fd1.xlsm
Size

83KB
MD5

48428b9169c6e692374591bea2b72937
SHA1

cea05aae8d1a2b46c22266243d133da0453df4e8
SHA256

fb51ebfd72054de8cbd7f74a05ce8d3cce650a9224c21504077cce9e86ae6fd1
SHA512

0ab2e83877d5c6d4a0632eeacaffdf54bc04e493ec47f992ddc0337a8ba77795e03e524144633a1e211929260a52069e3a32b169312bf91f1325e4c5dc5f1542

Score

10^/10

suricata

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

http://therecyclingmachine.com/wp-admin/LzpOZSlkq90fYT1/

xlm40.dropper

http://zhongmaifangwu.com/TEST777/3U4Un0u/

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	4960	3708	rundll32.exe	EXCEL.EXE

suricata: ET MALWARE W32/Emotet CnC Beacon 3
suricata: ET MALWARE W32/Emotet CnC Beacon 3
suricata
Blocklisted process makes network request 3 IoCs

Processes:

rundll32.exe

flow pid process

38 1776 rundll32.exe
39 1776 rundll32.exe
40 1776 rundll32.exe
Downloads MZ/PE file
Loads dropped DLL 2 IoCs

Processes:

rundll32.exerundll32.exe

pid process

4960 rundll32.exe
2028 rundll32.exe
Drops file in System32 directory 1 IoCs

Processes:

rundll32.exe

description ioc process

File opened for modification C:\Windows\SysWOW64\Zdqryb\hrouzmvbwiirt.nge rundll32.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

flow	pid	process
38	1776	rundll32.exe
39	1776	rundll32.exe
40	1776	rundll32.exe

pid	process
4960	rundll32.exe
2028	rundll32.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\Zdqryb\hrouzmvbwiirt.nge	rundll32.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

3708 EXCEL.EXE
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

rundll32.exe

pid process

1776 rundll32.exe
1776 rundll32.exe

pid	process
1776	rundll32.exe
1776	rundll32.exe

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
3708	EXCEL.EXE
3708	EXCEL.EXE
3708	EXCEL.EXE
3708	EXCEL.EXE
3708	EXCEL.EXE
3708	EXCEL.EXE
3708	EXCEL.EXE
3708	EXCEL.EXE
3708	EXCEL.EXE
3708	EXCEL.EXE
3708	EXCEL.EXE
3708	EXCEL.EXE

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

EXCEL.EXErundll32.exerundll32.exerundll32.exe

description	pid	process	target process
PID 3708 wrote to memory of 4960	3708	EXCEL.EXE	rundll32.exe
PID 3708 wrote to memory of 4960	3708	EXCEL.EXE	rundll32.exe
PID 3708 wrote to memory of 4960	3708	EXCEL.EXE	rundll32.exe
PID 4960 wrote to memory of 2028	4960	rundll32.exe	rundll32.exe
PID 4960 wrote to memory of 2028	4960	rundll32.exe	rundll32.exe
PID 4960 wrote to memory of 2028	4960	rundll32.exe	rundll32.exe
PID 2028 wrote to memory of 4572	2028	rundll32.exe	rundll32.exe
PID 2028 wrote to memory of 4572	2028	rundll32.exe	rundll32.exe
PID 2028 wrote to memory of 4572	2028	rundll32.exe	rundll32.exe
PID 4572 wrote to memory of 1776	4572	rundll32.exe	rundll32.exe
PID 4572 wrote to memory of 1776	4572	rundll32.exe	rundll32.exe
PID 4572 wrote to memory of 1776	4572	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\fb51ebfd72054de8cbd7f74a05ce8d3cce650a9224c21504077cce9e86ae6fd1.xlsm"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3708

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:4960

C:\Windows\SysWOW64\rundll32.exe
C:\Windows\SysWOW64\rundll32.exe "C:\Users\Admin\erum.ocx",DllRegisterServer
3⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:2028

C:\Windows\SysWOW64\rundll32.exe
C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Zdqryb\hrouzmvbwiirt.nge",JpPvNeqZa
4⤵
- Suspicious use of WriteProcessMemory
PID:4572

C:\Windows\SysWOW64\rundll32.exe
C:\Windows\SysWOW64\rundll32.exe "C:\Windows\System32\Zdqryb\hrouzmvbwiirt.nge",DllRegisterServer
5⤵
- Blocklisted process makes network request
- Suspicious behavior: EnumeratesProcesses
PID:1776

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

3

T1082

Query Registry

2

T1012

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\erum.ocx
MD5
e1bf68e8f36da4debfc6bc011062171a

SHA1
4ce18ca53d572306b5d7899099cf67e97e96a58e

SHA256
5b63131545d706a82de769b3b58c0bdf261ef85d723d9368bac818dc56b1639d

SHA512
2a60627b252eeed28727a91d473fe7f00680b6c421b659a0c9fa20ef25e37a5edaf68093287904a286ed927033d0411d116fa4fc7fc3a70e3e9421ab1dd73f4b

Download Submit
\Users\Admin\erum.ocx
MD5
e1bf68e8f36da4debfc6bc011062171a

SHA1
4ce18ca53d572306b5d7899099cf67e97e96a58e

SHA256
5b63131545d706a82de769b3b58c0bdf261ef85d723d9368bac818dc56b1639d

SHA512
2a60627b252eeed28727a91d473fe7f00680b6c421b659a0c9fa20ef25e37a5edaf68093287904a286ed927033d0411d116fa4fc7fc3a70e3e9421ab1dd73f4b

Download Submit
\Users\Admin\erum.ocx
MD5
e1bf68e8f36da4debfc6bc011062171a

SHA1
4ce18ca53d572306b5d7899099cf67e97e96a58e

SHA256
5b63131545d706a82de769b3b58c0bdf261ef85d723d9368bac818dc56b1639d

SHA512
2a60627b252eeed28727a91d473fe7f00680b6c421b659a0c9fa20ef25e37a5edaf68093287904a286ed927033d0411d116fa4fc7fc3a70e3e9421ab1dd73f4b

Download Submit
memory/1776-301-0x0000000000000000-mapping.dmp

Download
memory/2028-282-0x0000000000000000-mapping.dmp

Download
memory/3708-119-0x0000023921FA0000-0x0000023921FA2000-memory.dmp

Filesize
8KB

Download
memory/3708-121-0x00007FFB3D3D0000-0x00007FFB3D3E0000-memory.dmp

Filesize
64KB

Download
memory/3708-122-0x0000023921FA0000-0x0000023921FA2000-memory.dmp

Filesize
8KB

Download
memory/3708-128-0x00007FFB3A380000-0x00007FFB3A390000-memory.dmp

Filesize
64KB

Download
memory/3708-129-0x00007FFB3A380000-0x00007FFB3A390000-memory.dmp

Filesize
64KB

Download
memory/3708-120-0x0000023921FA0000-0x0000023921FA2000-memory.dmp

Filesize
8KB

Download
memory/3708-115-0x00007FFB3D3D0000-0x00007FFB3D3E0000-memory.dmp

Filesize
64KB

Download
memory/3708-118-0x00007FFB3D3D0000-0x00007FFB3D3E0000-memory.dmp

Filesize
64KB

Download
memory/3708-117-0x00007FFB3D3D0000-0x00007FFB3D3E0000-memory.dmp

Filesize
64KB

Download
memory/3708-116-0x00007FFB3D3D0000-0x00007FFB3D3E0000-memory.dmp

Filesize
64KB

Download
memory/4572-296-0x0000000000000000-mapping.dmp

Download
memory/4960-277-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads