eb3e8690d152148f0bc7d306065ba030410ba35eb5e672f09041b20cf000ee4f

General

Target

Q_4992.xlsm
Size

83KB
MD5

597e9be00a6e6597e041ea986dac1252
SHA1

ec554fff3d8d0d18de86a1def864340963afb925
SHA256

eb3e8690d152148f0bc7d306065ba030410ba35eb5e672f09041b20cf000ee4f
SHA512

6cb5570a2394704f0e30c8dc9cabec9b1b5451e5035f9c0532e74ff951bd824f02f943325d41dfd56a9de1b85b816d24182aa35f75062e736809d9fb06bc59cb

Score

10^/10

suricata

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

http://mammy-chiro.com/case/ZTkBzbz/

xlm40.dropper

http://bluetoothheadsetreview.xyz/wp-includes/xmdHAGgfki/

Signatures

Process spawned unexpected child process 1 IoCs

This typically indicates the parent process was compromised via an exploit or macro.

description	pid	pid_target	Process	procid_target
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	2672	2676	rundll32.exe	67

suricata: ET MALWARE W32/Emotet CnC Beacon 3
suricata: ET MALWARE W32/Emotet CnC Beacon 3
suricata

Blocklisted process makes network request 2 IoCs

flow	pid	Process
44	3776	rundll32.exe
45	3776	rundll32.exe

Loads dropped DLL 2 IoCs

pid	Process
2672	rundll32.exe
3428	rundll32.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\Dngrfrhypzillsxi\aidcsjnjzxew.rkg	rundll32.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

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

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

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

pid	Process
2676	EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3776	rundll32.exe
3776	rundll32.exe

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
2676	EXCEL.EXE
2676	EXCEL.EXE
2676	EXCEL.EXE
2676	EXCEL.EXE
2676	EXCEL.EXE
2676	EXCEL.EXE
2676	EXCEL.EXE
2676	EXCEL.EXE
2676	EXCEL.EXE
2676	EXCEL.EXE
2676	EXCEL.EXE
2676	EXCEL.EXE

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2676 wrote to memory of 2672	2676	EXCEL.EXE	71
PID 2676 wrote to memory of 2672	2676	EXCEL.EXE	71
PID 2676 wrote to memory of 2672	2676	EXCEL.EXE	71
PID 2672 wrote to memory of 3428	2672	rundll32.exe	72
PID 2672 wrote to memory of 3428	2672	rundll32.exe	72
PID 2672 wrote to memory of 3428	2672	rundll32.exe	72
PID 3428 wrote to memory of 3928	3428	rundll32.exe	73
PID 3428 wrote to memory of 3928	3428	rundll32.exe	73
PID 3428 wrote to memory of 3928	3428	rundll32.exe	73
PID 3928 wrote to memory of 3776	3928	rundll32.exe	74
PID 3928 wrote to memory of 3776	3928	rundll32.exe	74
PID 3928 wrote to memory of 3776	3928	rundll32.exe	74

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\Q_4992.xlsm"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2676
- C:\Windows\SysWow64\rundll32.exe
  C:\Windows\SysWow64\rundll32.exe ..\dwa.ocx,D"&"l"&"lR"&"egister"&"Server
  2⤵
  - Process spawned unexpected child process
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:2672
- - C:\Windows\SysWOW64\rundll32.exe
    C:\Windows\SysWOW64\rundll32.exe "C:\Users\Admin\dwa.ocx",DllRegisterServer
    3⤵
    - Loads dropped DLL
    - Drops file in System32 directory
    - Suspicious use of WriteProcessMemory
    PID:3428
  - - C:\Windows\SysWOW64\rundll32.exe
      C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Dngrfrhypzillsxi\aidcsjnjzxew.rkg",oSwrOiQ
      4⤵
      Suspicious use of WriteProcessMemory
      PID:3928
    - - C:\Windows\SysWOW64\rundll32.exe
        
        C:\Windows\SysWOW64\rundll32.exe "C:\Windows\System32\Dngrfrhypzillsxi\aidcsjnjzxew.rkg",DllRegisterServer
        5⤵
        Blocklisted process makes network request
        Suspicious behavior: EnumeratesProcesses
        
        PID:3776

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

3

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/2676-118-0x00007FF879910000-0x00007FF879920000-memory.dmp

Filesize
64KB

Download
memory/2676-120-0x000001E2AAA20000-0x000001E2AAA22000-memory.dmp

Filesize
8KB

Download
memory/2676-121-0x00007FF879910000-0x00007FF879920000-memory.dmp

Filesize
64KB

Download
memory/2676-122-0x000001E2AAA20000-0x000001E2AAA22000-memory.dmp

Filesize
8KB

Download
memory/2676-119-0x000001E2AAA20000-0x000001E2AAA22000-memory.dmp

Filesize
8KB

Download
memory/2676-115-0x00007FF879910000-0x00007FF879920000-memory.dmp

Filesize
64KB

Download
memory/2676-117-0x00007FF879910000-0x00007FF879920000-memory.dmp

Filesize
64KB

Download
memory/2676-116-0x00007FF879910000-0x00007FF879920000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads