9e4e5949a37f75d6982aac9b092694911ce63a2c0bdda51d4a4e318d655f72a2

General

Target

9e4e5949a37f75d6982aac9b092694911ce63a2c0bdda51d4a4e318d655f72a2.xlsm
Size

83KB
MD5

eb2f7e56b9c22e7c0e9725e112f50b8c
SHA1

b6ed272fc37059692c2483c9cce08f28664dc5fa
SHA256

9e4e5949a37f75d6982aac9b092694911ce63a2c0bdda51d4a4e318d655f72a2
SHA512

50703344c7af4e3e97f3c6479a6c84398a18e224322da71c619406f522a75b95a049b2d0b11767c27fbe5da514dae908db6e1abe36b97decc2b3bd9da1dffdb3

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	1928	2748	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

37 3612 rundll32.exe
38 3612 rundll32.exe
40 3612 rundll32.exe
Downloads MZ/PE file
Loads dropped DLL 2 IoCs

Processes:

rundll32.exerundll32.exe

pid process

1928 rundll32.exe
2460 rundll32.exe
Drops file in System32 directory 1 IoCs

Processes:

rundll32.exe

description ioc process

File opened for modification C:\Windows\SysWOW64\Eiozwtukdfgyjuxw\uoeklsal.vzn 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
37	3612	rundll32.exe
38	3612	rundll32.exe
40	3612	rundll32.exe

pid	process
1928	rundll32.exe
2460	rundll32.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\Eiozwtukdfgyjuxw\uoeklsal.vzn	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 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
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

2748 EXCEL.EXE
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

rundll32.exe

pid process

3612 rundll32.exe
3612 rundll32.exe
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

EXCEL.EXE

pid process

2748 EXCEL.EXE
2748 EXCEL.EXE

pid	process
3612	rundll32.exe
3612	rundll32.exe

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
2748	EXCEL.EXE
2748	EXCEL.EXE
2748	EXCEL.EXE
2748	EXCEL.EXE
2748	EXCEL.EXE
2748	EXCEL.EXE
2748	EXCEL.EXE
2748	EXCEL.EXE
2748	EXCEL.EXE
2748	EXCEL.EXE
2748	EXCEL.EXE
2748	EXCEL.EXE

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

EXCEL.EXErundll32.exerundll32.exerundll32.exe

description	pid	process	target process
PID 2748 wrote to memory of 1928	2748	EXCEL.EXE	rundll32.exe
PID 2748 wrote to memory of 1928	2748	EXCEL.EXE	rundll32.exe
PID 2748 wrote to memory of 1928	2748	EXCEL.EXE	rundll32.exe
PID 1928 wrote to memory of 2460	1928	rundll32.exe	rundll32.exe
PID 1928 wrote to memory of 2460	1928	rundll32.exe	rundll32.exe
PID 1928 wrote to memory of 2460	1928	rundll32.exe	rundll32.exe
PID 2460 wrote to memory of 1904	2460	rundll32.exe	rundll32.exe
PID 2460 wrote to memory of 1904	2460	rundll32.exe	rundll32.exe
PID 2460 wrote to memory of 1904	2460	rundll32.exe	rundll32.exe
PID 1904 wrote to memory of 3612	1904	rundll32.exe	rundll32.exe
PID 1904 wrote to memory of 3612	1904	rundll32.exe	rundll32.exe
PID 1904 wrote to memory of 3612	1904	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\9e4e5949a37f75d6982aac9b092694911ce63a2c0bdda51d4a4e318d655f72a2.xlsm"
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:2748

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:1928

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:2460

C:\Windows\SysWOW64\rundll32.exe
C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Eiozwtukdfgyjuxw\uoeklsal.vzn",albl
4⤵
- Suspicious use of WriteProcessMemory
PID:1904

C:\Windows\SysWOW64\rundll32.exe
C:\Windows\SysWOW64\rundll32.exe "C:\Windows\System32\Eiozwtukdfgyjuxw\uoeklsal.vzn",DllRegisterServer
5⤵
- Blocklisted process makes network request
- Suspicious behavior: EnumeratesProcesses
PID:3612

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
ebe5f94c3f46923100fcad7393ebddcf

SHA1
a56bfc3bd2d0f50a78b0fea09542b2c60f16f27e

SHA256
3156cc6407069ebbfd20655fd869972986805ec525287a4f320f83c2517c450d

SHA512
7991152525b80554044ccbf7c29727eff4a4811b13ba47682fa084b055bc0b9e2ce8eb431159be47aaeaa34b7e3b856a000e6ac199a81ffe46b23618c7d7e9d6

Download Submit
\Users\Admin\erum.ocx
MD5
ebe5f94c3f46923100fcad7393ebddcf

SHA1
a56bfc3bd2d0f50a78b0fea09542b2c60f16f27e

SHA256
3156cc6407069ebbfd20655fd869972986805ec525287a4f320f83c2517c450d

SHA512
7991152525b80554044ccbf7c29727eff4a4811b13ba47682fa084b055bc0b9e2ce8eb431159be47aaeaa34b7e3b856a000e6ac199a81ffe46b23618c7d7e9d6

Download Submit
\Users\Admin\erum.ocx
MD5
ebe5f94c3f46923100fcad7393ebddcf

SHA1
a56bfc3bd2d0f50a78b0fea09542b2c60f16f27e

SHA256
3156cc6407069ebbfd20655fd869972986805ec525287a4f320f83c2517c450d

SHA512
7991152525b80554044ccbf7c29727eff4a4811b13ba47682fa084b055bc0b9e2ce8eb431159be47aaeaa34b7e3b856a000e6ac199a81ffe46b23618c7d7e9d6

Download Submit
memory/1904-280-0x0000000000000000-mapping.dmp

Download
memory/1928-254-0x0000000000000000-mapping.dmp

Download
memory/2460-259-0x0000000000000000-mapping.dmp

Download
memory/2748-120-0x0000028387120000-0x0000028387122000-memory.dmp

Filesize
8KB

Download
memory/2748-128-0x00007FF9D70A0000-0x00007FF9D70B0000-memory.dmp

Filesize
64KB

Download
memory/2748-129-0x00007FF9D3640000-0x00007FF9D3650000-memory.dmp

Filesize
64KB

Download
memory/2748-130-0x00007FF9D3640000-0x00007FF9D3650000-memory.dmp

Filesize
64KB

Download
memory/2748-122-0x0000028387120000-0x0000028387122000-memory.dmp

Filesize
8KB

Download
memory/2748-121-0x0000028387120000-0x0000028387122000-memory.dmp

Filesize
8KB

Download
memory/2748-116-0x00007FF9D70A0000-0x00007FF9D70B0000-memory.dmp

Filesize
64KB

Download
memory/2748-119-0x00007FF9D70A0000-0x00007FF9D70B0000-memory.dmp

Filesize
64KB

Download
memory/2748-118-0x00007FF9D70A0000-0x00007FF9D70B0000-memory.dmp

Filesize
64KB

Download
memory/2748-117-0x00007FF9D70A0000-0x00007FF9D70B0000-memory.dmp

Filesize
64KB

Download
memory/3612-285-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads