68d39acfcd55c7009d5a0693e155af5101e16c3f7e865a143aeb10741d93a4c8

General

Target

68d39acfcd55c7009d5a0693e155af5101e16c3f7e865a143aeb10741d93a4c8.xlsm
Size

83KB
MD5

4f7df170dc3f0afd4c6de1371b6e46d5
SHA1

0fcc0c1e8f9b496cbebdef3a71a3bb656f75b4ad
SHA256

68d39acfcd55c7009d5a0693e155af5101e16c3f7e865a143aeb10741d93a4c8
SHA512

800875ba9fe7a5ab814e8751963045670422e6282952736ef7e2c40d1f46fe3cccda6189a1991116e54c622c7dfdf6af4a9206dae45e3c136d3654c46bc1e591

Score

10^/10

suricata

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

http://mail.emilyanncain.com/cgi-bin/A7NT3ENvn/

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	3592	3988	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

43 2328 rundll32.exe
44 2328 rundll32.exe
Downloads MZ/PE file
Loads dropped DLL 2 IoCs

Processes:

rundll32.exerundll32.exe

pid process

3592 rundll32.exe
840 rundll32.exe
Drops file in System32 directory 1 IoCs

Processes:

rundll32.exe

description ioc process

File opened for modification C:\Windows\SysWOW64\Daepwk\rwvknxbjsnhao.yav 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
43	2328	rundll32.exe
44	2328	rundll32.exe

pid	process
3592	rundll32.exe
840	rundll32.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\Daepwk\rwvknxbjsnhao.yav	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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

3988 EXCEL.EXE
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

rundll32.exe

pid process

2328 rundll32.exe
2328 rundll32.exe
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

EXCEL.EXE

pid process

3988 EXCEL.EXE
3988 EXCEL.EXE

pid	process
2328	rundll32.exe
2328	rundll32.exe

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
3988	EXCEL.EXE
3988	EXCEL.EXE
3988	EXCEL.EXE
3988	EXCEL.EXE
3988	EXCEL.EXE
3988	EXCEL.EXE
3988	EXCEL.EXE
3988	EXCEL.EXE
3988	EXCEL.EXE
3988	EXCEL.EXE
3988	EXCEL.EXE
3988	EXCEL.EXE

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

EXCEL.EXErundll32.exerundll32.exerundll32.exe

description	pid	process	target process
PID 3988 wrote to memory of 3592	3988	EXCEL.EXE	rundll32.exe
PID 3988 wrote to memory of 3592	3988	EXCEL.EXE	rundll32.exe
PID 3988 wrote to memory of 3592	3988	EXCEL.EXE	rundll32.exe
PID 3592 wrote to memory of 840	3592	rundll32.exe	rundll32.exe
PID 3592 wrote to memory of 840	3592	rundll32.exe	rundll32.exe
PID 3592 wrote to memory of 840	3592	rundll32.exe	rundll32.exe
PID 840 wrote to memory of 3832	840	rundll32.exe	rundll32.exe
PID 840 wrote to memory of 3832	840	rundll32.exe	rundll32.exe
PID 840 wrote to memory of 3832	840	rundll32.exe	rundll32.exe
PID 3832 wrote to memory of 2328	3832	rundll32.exe	rundll32.exe
PID 3832 wrote to memory of 2328	3832	rundll32.exe	rundll32.exe
PID 3832 wrote to memory of 2328	3832	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\68d39acfcd55c7009d5a0693e155af5101e16c3f7e865a143aeb10741d93a4c8.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:3988

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:3592

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:840

C:\Windows\SysWOW64\rundll32.exe
C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Daepwk\rwvknxbjsnhao.yav",rcrXxnJzndlc
4⤵
- Suspicious use of WriteProcessMemory
PID:3832

C:\Windows\SysWOW64\rundll32.exe
C:\Windows\SysWOW64\rundll32.exe "C:\Windows\System32\Daepwk\rwvknxbjsnhao.yav",DllRegisterServer
5⤵
- Blocklisted process makes network request
- Suspicious behavior: EnumeratesProcesses
PID:2328

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
fd9a257bffd063031a70d7d3b543d907

SHA1
2ff28e5249d20bfd5da6acc636f75b971afe1f79

SHA256
f99aab0ac2b80b02b8a1ba70b86ff16e9aac1bff1451df307946feb0a42780ee

SHA512
d381c098b653627e4f32d4d6a3cb15efab90fa149d0eaa5548a9dfc7f8a9e98ba126d35df0e8ec1b7c226b760bc0c63606b3534a2b8f1324e6da3f719bb7eec1

Download Submit
\Users\Admin\erum.ocx
MD5
fd9a257bffd063031a70d7d3b543d907

SHA1
2ff28e5249d20bfd5da6acc636f75b971afe1f79

SHA256
f99aab0ac2b80b02b8a1ba70b86ff16e9aac1bff1451df307946feb0a42780ee

SHA512
d381c098b653627e4f32d4d6a3cb15efab90fa149d0eaa5548a9dfc7f8a9e98ba126d35df0e8ec1b7c226b760bc0c63606b3534a2b8f1324e6da3f719bb7eec1

Download Submit
\Users\Admin\erum.ocx
MD5
fd9a257bffd063031a70d7d3b543d907

SHA1
2ff28e5249d20bfd5da6acc636f75b971afe1f79

SHA256
f99aab0ac2b80b02b8a1ba70b86ff16e9aac1bff1451df307946feb0a42780ee

SHA512
d381c098b653627e4f32d4d6a3cb15efab90fa149d0eaa5548a9dfc7f8a9e98ba126d35df0e8ec1b7c226b760bc0c63606b3534a2b8f1324e6da3f719bb7eec1

Download Submit
memory/840-258-0x0000000000000000-mapping.dmp

Download
memory/2328-284-0x0000000000000000-mapping.dmp

Download
memory/3592-253-0x0000000000000000-mapping.dmp

Download
memory/3832-279-0x0000000000000000-mapping.dmp

Download
memory/3988-119-0x0000011E21B10000-0x0000011E21B12000-memory.dmp

Filesize
8KB

Download
memory/3988-128-0x00007FFF61D50000-0x00007FFF61D60000-memory.dmp

Filesize
64KB

Download
memory/3988-129-0x00007FFF61D50000-0x00007FFF61D60000-memory.dmp

Filesize
64KB

Download
memory/3988-122-0x0000011E21B10000-0x0000011E21B12000-memory.dmp

Filesize
8KB

Download
memory/3988-121-0x00007FFF65860000-0x00007FFF65870000-memory.dmp

Filesize
64KB

Download
memory/3988-120-0x0000011E21B10000-0x0000011E21B12000-memory.dmp

Filesize
8KB

Download
memory/3988-115-0x00007FFF65860000-0x00007FFF65870000-memory.dmp

Filesize
64KB

Download
memory/3988-118-0x00007FFF65860000-0x00007FFF65870000-memory.dmp

Filesize
64KB

Download
memory/3988-117-0x00007FFF65860000-0x00007FFF65870000-memory.dmp

Filesize
64KB

Download
memory/3988-116-0x00007FFF65860000-0x00007FFF65870000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads