5d0cc537deee02adfdfc8d27167144f5c222745162c15df34803e67f09cd7f1f

General

Target

5d0cc537deee02adfdfc8d27167144f5c222745162c15df34803e67f09cd7f1f.xlsm
Size

83KB
MD5

52df1816f2c564e3dbe0a7c30a0d6540
SHA1

2fd4a55a971070d9ea92dc0c433d3d3fd3aba91f
SHA256

5d0cc537deee02adfdfc8d27167144f5c222745162c15df34803e67f09cd7f1f
SHA512

0dd63d9618d219b450864073dcd428681bc1991668ffb3e41c9d952efffbe6b9d09368bb9f9d35b2907a2db44f8171448aba9b7a070db5cb48e2041a43cffd8e

Score

10^/10

suricata

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

http://recont.com/n8xbqb/lwEORjcJYPKCNQ/

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	1848	3280	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 2 IoCs

Processes:

rundll32.exe

flow pid process

45 3792 rundll32.exe
46 3792 rundll32.exe
Downloads MZ/PE file
Loads dropped DLL 2 IoCs

Processes:

rundll32.exerundll32.exe

pid process

1848 rundll32.exe
2060 rundll32.exe
Drops file in System32 directory 1 IoCs

Processes:

rundll32.exe

description ioc process

File opened for modification C:\Windows\SysWOW64\Aurpqdgjdr\qjtydyracn.sdg 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
45	3792	rundll32.exe
46	3792	rundll32.exe

pid	process
1848	rundll32.exe
2060	rundll32.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\Aurpqdgjdr\qjtydyracn.sdg	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

3280 EXCEL.EXE
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

rundll32.exe

pid process

3792 rundll32.exe
3792 rundll32.exe

pid	process
3792	rundll32.exe
3792	rundll32.exe

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
3280	EXCEL.EXE
3280	EXCEL.EXE
3280	EXCEL.EXE
3280	EXCEL.EXE
3280	EXCEL.EXE
3280	EXCEL.EXE
3280	EXCEL.EXE
3280	EXCEL.EXE
3280	EXCEL.EXE
3280	EXCEL.EXE
3280	EXCEL.EXE
3280	EXCEL.EXE

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

EXCEL.EXErundll32.exerundll32.exerundll32.exe

description	pid	process	target process
PID 3280 wrote to memory of 1848	3280	EXCEL.EXE	rundll32.exe
PID 3280 wrote to memory of 1848	3280	EXCEL.EXE	rundll32.exe
PID 3280 wrote to memory of 1848	3280	EXCEL.EXE	rundll32.exe
PID 1848 wrote to memory of 2060	1848	rundll32.exe	rundll32.exe
PID 1848 wrote to memory of 2060	1848	rundll32.exe	rundll32.exe
PID 1848 wrote to memory of 2060	1848	rundll32.exe	rundll32.exe
PID 2060 wrote to memory of 3204	2060	rundll32.exe	rundll32.exe
PID 2060 wrote to memory of 3204	2060	rundll32.exe	rundll32.exe
PID 2060 wrote to memory of 3204	2060	rundll32.exe	rundll32.exe
PID 3204 wrote to memory of 3792	3204	rundll32.exe	rundll32.exe
PID 3204 wrote to memory of 3792	3204	rundll32.exe	rundll32.exe
PID 3204 wrote to memory of 3792	3204	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\5d0cc537deee02adfdfc8d27167144f5c222745162c15df34803e67f09cd7f1f.xlsm"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3280

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:1848

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:2060

C:\Windows\SysWOW64\rundll32.exe
C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Aurpqdgjdr\qjtydyracn.sdg",PgGGgTa
4⤵
- Suspicious use of WriteProcessMemory
PID:3204

C:\Windows\SysWOW64\rundll32.exe
C:\Windows\SysWOW64\rundll32.exe "C:\Windows\System32\Aurpqdgjdr\qjtydyracn.sdg",DllRegisterServer
5⤵
- Blocklisted process makes network request
- Suspicious behavior: EnumeratesProcesses
PID:3792

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\erum.ocx
MD5
37226211bf6766d8790a4f4d5fbd7d57

SHA1
2b27b41c690150640589159968bb7fa2d6d184fd

SHA256
f80c9a0c7eeef8c41ad08b7c12a9ee8a60696d4122dd8ebc772ba99b3bf7b8ad

SHA512
d12c5e0ee478a39315c1b1401e4615af0c6558b50e8783aacd13cdd8b22636540cd2d56648b33b4589114430e7b4e396e3d98c1137dbef3feb2c2aeedd4f8799

Download Submit
\Users\Admin\erum.ocx
MD5
37226211bf6766d8790a4f4d5fbd7d57

SHA1
2b27b41c690150640589159968bb7fa2d6d184fd

SHA256
f80c9a0c7eeef8c41ad08b7c12a9ee8a60696d4122dd8ebc772ba99b3bf7b8ad

SHA512
d12c5e0ee478a39315c1b1401e4615af0c6558b50e8783aacd13cdd8b22636540cd2d56648b33b4589114430e7b4e396e3d98c1137dbef3feb2c2aeedd4f8799

Download Submit
\Users\Admin\erum.ocx
MD5
37226211bf6766d8790a4f4d5fbd7d57

SHA1
2b27b41c690150640589159968bb7fa2d6d184fd

SHA256
f80c9a0c7eeef8c41ad08b7c12a9ee8a60696d4122dd8ebc772ba99b3bf7b8ad

SHA512
d12c5e0ee478a39315c1b1401e4615af0c6558b50e8783aacd13cdd8b22636540cd2d56648b33b4589114430e7b4e396e3d98c1137dbef3feb2c2aeedd4f8799

Download Submit
memory/1848-265-0x0000000000000000-mapping.dmp

Download
memory/2060-272-0x0000000000000000-mapping.dmp

Download
memory/3204-286-0x0000000000000000-mapping.dmp

Download
memory/3280-119-0x000001FE76520000-0x000001FE76522000-memory.dmp

Filesize
8KB

Download
memory/3280-122-0x000001FE76520000-0x000001FE76522000-memory.dmp

Filesize
8KB

Download
memory/3280-128-0x00007FF978E10000-0x00007FF978E20000-memory.dmp

Filesize
64KB

Download
memory/3280-129-0x00007FF978E10000-0x00007FF978E20000-memory.dmp

Filesize
64KB

Download
memory/3280-121-0x00007FF97BC30000-0x00007FF97BC40000-memory.dmp

Filesize
64KB

Download
memory/3280-120-0x000001FE76520000-0x000001FE76522000-memory.dmp

Filesize
8KB

Download
memory/3280-115-0x00007FF97BC30000-0x00007FF97BC40000-memory.dmp

Filesize
64KB

Download
memory/3280-118-0x00007FF97BC30000-0x00007FF97BC40000-memory.dmp

Filesize
64KB

Download
memory/3280-117-0x00007FF97BC30000-0x00007FF97BC40000-memory.dmp

Filesize
64KB

Download
memory/3280-116-0x00007FF97BC30000-0x00007FF97BC40000-memory.dmp

Filesize
64KB

Download
memory/3792-291-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads