3a99b9589a020ce47d00c9c050fdffca4069352963db72376f867ee9e1c8e92c

General

Target
SecuriteInfo.com.Trojan.Agent.FRJZ.710.9128.xlsm
Size 82KB
Sample220114-ea4w4secgj
SHA256 3a99b9589a020ce47d00c9c050fdffca4069352963db72376f867ee9e1c8e92c
MD5 d5c3a879304950a5f5d96c2c61ac74c1
SHA1 e06c2888ff9a5ae97da20fd841790cd879665032
SHA512 f02ee41296d2a02aa3c4494779b2a43ae83710ca83ecf2c8e930087764ddb25deeb7b27d8fc2689170571ed850a58a9592169649370faab2388c45375d03e22e
MD5 SHA1 SHA512

Score

10^/10

suricata

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper
http://insertcatherreview.xyz/wp-includes/UUlQtC51SL8IzBT/
xlm40.dropper
http://bbc-us.com/wp-admin/48r6tiF1qTMqrAO/

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	2532	2328	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 3 IoCs

flow	pid	Process
43	1284	rundll32.exe
44	1284	rundll32.exe
46	1284	rundll32.exe

Downloads MZ/PE file

Loads dropped DLL 2 IoCs

pid	Process
2532	rundll32.exe
3012	rundll32.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\Mallgb\lxvdtsymskdshid.wos	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 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

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

pid	Process
2328	EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1284	rundll32.exe
1284	rundll32.exe

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
2328	EXCEL.EXE
2328	EXCEL.EXE
2328	EXCEL.EXE
2328	EXCEL.EXE
2328	EXCEL.EXE
2328	EXCEL.EXE
2328	EXCEL.EXE
2328	EXCEL.EXE
2328	EXCEL.EXE
2328	EXCEL.EXE
2328	EXCEL.EXE
2328	EXCEL.EXE

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2328 wrote to memory of 2532	2328	EXCEL.EXE	71
PID 2328 wrote to memory of 2532	2328	EXCEL.EXE	71
PID 2328 wrote to memory of 2532	2328	EXCEL.EXE	71
PID 2532 wrote to memory of 3012	2532	rundll32.exe	72
PID 2532 wrote to memory of 3012	2532	rundll32.exe	72
PID 2532 wrote to memory of 3012	2532	rundll32.exe	72
PID 3012 wrote to memory of 3104	3012	rundll32.exe	73
PID 3012 wrote to memory of 3104	3012	rundll32.exe	73
PID 3012 wrote to memory of 3104	3012	rundll32.exe	73
PID 3104 wrote to memory of 1284	3104	rundll32.exe	74
PID 3104 wrote to memory of 1284	3104	rundll32.exe	74
PID 3104 wrote to memory of 1284	3104	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\SecuriteInfo.com.Trojan.Agent.FRJZ.710.9128.xlsm"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2328
- 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:2532
- - 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:3012
  - - C:\Windows\SysWOW64\rundll32.exe
      C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Mallgb\lxvdtsymskdshid.wos",MpauVtJXHhqa
      4⤵
      Suspicious use of WriteProcessMemory
      PID:3104
    - - C:\Windows\SysWOW64\rundll32.exe
        
        C:\Windows\SysWOW64\rundll32.exe "C:\Windows\System32\Mallgb\lxvdtsymskdshid.wos",DllRegisterServer
        5⤵
        Blocklisted process makes network request
        Suspicious behavior: EnumeratesProcesses
        
        PID:1284

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

Replay Monitor

Loading Replay Monitor...

Downloads

memory/2328-118-0x00007FFE3E940000-0x00007FFE3E950000-memory.dmp

Download

memory/2328-119-0x0000018FFEDD0000-0x0000018FFEDD2000-memory.dmp

Download

memory/2328-121-0x00007FFE3E940000-0x00007FFE3E950000-memory.dmp

Download

memory/2328-122-0x0000018FFEDD0000-0x0000018FFEDD2000-memory.dmp

Download

memory/2328-120-0x0000018FFEDD0000-0x0000018FFEDD2000-memory.dmp

Download

memory/2328-115-0x00007FFE3E940000-0x00007FFE3E950000-memory.dmp

Download

memory/2328-117-0x00007FFE3E940000-0x00007FFE3E950000-memory.dmp

Download

memory/2328-116-0x00007FFE3E940000-0x00007FFE3E950000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads