0766c61d5d861dd6db71ee8f535e5f405f9d7ae80dfc5c83938e000d2b4ba58a

General

Target

0766c61d5d861dd6db71ee8f535e5f405f9d7ae80dfc5c83938e000d2b4ba58a.xlsm
Size

83KB
MD5

5610c5825e0a6dfdeff609a7892a5248
SHA1

3d51a54040324acc824c1b9beb8cb042e923fb76
SHA256

0766c61d5d861dd6db71ee8f535e5f405f9d7ae80dfc5c83938e000d2b4ba58a
SHA512

81f025d1171ec68e1b67dd57778d8475382a6c70c9815931f9a3e4c24f5dd50d98ff096598669de5c0bb191ab22a7e0e8e6b88ff73a068ef6e12cbb9548d38f0

Score

10^/10

suricata

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

http://adi.iswks.com/assets/hO1v71pqfNN/

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	3500	528	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

46 1484 rundll32.exe
47 1484 rundll32.exe
Downloads MZ/PE file
Loads dropped DLL 2 IoCs

Processes:

rundll32.exerundll32.exe

pid process

3500 rundll32.exe
2040 rundll32.exe
Drops file in System32 directory 1 IoCs

Processes:

rundll32.exe

description ioc process

File opened for modification C:\Windows\SysWOW64\Atyyxqaconffosjv\jqjxtcoc.clp 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
46	1484	rundll32.exe
47	1484	rundll32.exe

pid	process
3500	rundll32.exe
2040	rundll32.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\Atyyxqaconffosjv\jqjxtcoc.clp	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\ProcessorNameString	EXCEL.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

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

528 EXCEL.EXE
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

rundll32.exe

pid process

1484 rundll32.exe
1484 rundll32.exe

pid	process
1484	rundll32.exe
1484	rundll32.exe

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
528	EXCEL.EXE
528	EXCEL.EXE
528	EXCEL.EXE
528	EXCEL.EXE
528	EXCEL.EXE
528	EXCEL.EXE
528	EXCEL.EXE
528	EXCEL.EXE
528	EXCEL.EXE
528	EXCEL.EXE
528	EXCEL.EXE
528	EXCEL.EXE

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

EXCEL.EXErundll32.exerundll32.exerundll32.exe

description	pid	process	target process
PID 528 wrote to memory of 3500	528	EXCEL.EXE	rundll32.exe
PID 528 wrote to memory of 3500	528	EXCEL.EXE	rundll32.exe
PID 528 wrote to memory of 3500	528	EXCEL.EXE	rundll32.exe
PID 3500 wrote to memory of 2040	3500	rundll32.exe	rundll32.exe
PID 3500 wrote to memory of 2040	3500	rundll32.exe	rundll32.exe
PID 3500 wrote to memory of 2040	3500	rundll32.exe	rundll32.exe
PID 2040 wrote to memory of 2152	2040	rundll32.exe	rundll32.exe
PID 2040 wrote to memory of 2152	2040	rundll32.exe	rundll32.exe
PID 2040 wrote to memory of 2152	2040	rundll32.exe	rundll32.exe
PID 2152 wrote to memory of 1484	2152	rundll32.exe	rundll32.exe
PID 2152 wrote to memory of 1484	2152	rundll32.exe	rundll32.exe
PID 2152 wrote to memory of 1484	2152	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\0766c61d5d861dd6db71ee8f535e5f405f9d7ae80dfc5c83938e000d2b4ba58a.xlsm"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:528

C:\Windows\SysWow64\rundll32.exe
C:\Windows\SysWow64\rundll32.exe ..\wxeu.ocx,D"&"l"&"lR"&"egister"&"Serve"&"r
2⤵
- Process spawned unexpected child process
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:3500

C:\Windows\SysWOW64\rundll32.exe
C:\Windows\SysWOW64\rundll32.exe "C:\Users\Admin\wxeu.ocx",DllRegisterServer
3⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:2040

C:\Windows\SysWOW64\rundll32.exe
C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Atyyxqaconffosjv\jqjxtcoc.clp",QyYqZS
4⤵
- Suspicious use of WriteProcessMemory
PID:2152

C:\Windows\SysWOW64\rundll32.exe
C:\Windows\SysWOW64\rundll32.exe "C:\Windows\System32\Atyyxqaconffosjv\jqjxtcoc.clp",DllRegisterServer
5⤵
- Blocklisted process makes network request
- Suspicious behavior: EnumeratesProcesses
PID:1484

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\wxeu.ocx
MD5
8c25d2b7e7855d68f6e4839c68cac713

SHA1
23fbb6230fca685ec9e08ea9dee254f8e5915c1a

SHA256
a428659cdee3ba89a50a25f21d12b5b6b468da5b8ce06295465530ad5e09b3a9

SHA512
777fa9363bf317ef6da8abb09c6f2a0d25f9a4b7ec54663307e6615a580848b6eaf4d1aada6f118494fcbb98a7d582dfc5ac8a837ee35bd4d8ec48bf71c8db81

Download Submit
\Users\Admin\wxeu.ocx
MD5
8c25d2b7e7855d68f6e4839c68cac713

SHA1
23fbb6230fca685ec9e08ea9dee254f8e5915c1a

SHA256
a428659cdee3ba89a50a25f21d12b5b6b468da5b8ce06295465530ad5e09b3a9

SHA512
777fa9363bf317ef6da8abb09c6f2a0d25f9a4b7ec54663307e6615a580848b6eaf4d1aada6f118494fcbb98a7d582dfc5ac8a837ee35bd4d8ec48bf71c8db81

Download Submit
\Users\Admin\wxeu.ocx
MD5
8c25d2b7e7855d68f6e4839c68cac713

SHA1
23fbb6230fca685ec9e08ea9dee254f8e5915c1a

SHA256
a428659cdee3ba89a50a25f21d12b5b6b468da5b8ce06295465530ad5e09b3a9

SHA512
777fa9363bf317ef6da8abb09c6f2a0d25f9a4b7ec54663307e6615a580848b6eaf4d1aada6f118494fcbb98a7d582dfc5ac8a837ee35bd4d8ec48bf71c8db81

Download Submit
memory/528-119-0x00007FFE91410000-0x00007FFE91420000-memory.dmp

Filesize
64KB

Download
memory/528-116-0x00007FFE91410000-0x00007FFE91420000-memory.dmp

Filesize
64KB

Download
memory/528-121-0x00000151DECA0000-0x00000151DECA2000-memory.dmp

Filesize
8KB

Download
memory/528-120-0x00000151DECA0000-0x00000151DECA2000-memory.dmp

Filesize
8KB

Download
memory/528-122-0x00000151DECA0000-0x00000151DECA2000-memory.dmp

Filesize
8KB

Download
memory/528-128-0x00007FFE8D940000-0x00007FFE8D950000-memory.dmp

Filesize
64KB

Download
memory/528-129-0x00007FFE8D940000-0x00007FFE8D950000-memory.dmp

Filesize
64KB

Download
memory/528-118-0x00007FFE91410000-0x00007FFE91420000-memory.dmp

Filesize
64KB

Download
memory/528-117-0x00007FFE91410000-0x00007FFE91420000-memory.dmp

Filesize
64KB

Download
memory/528-115-0x00007FFE91410000-0x00007FFE91420000-memory.dmp

Filesize
64KB

Download
memory/1484-288-0x0000000000000000-mapping.dmp

Download
memory/2040-271-0x0000000000000000-mapping.dmp

Download
memory/2152-283-0x0000000000000000-mapping.dmp

Download
memory/3500-266-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads