48f75fe3ade801f9f0595a0e404a181e7a039a96f312ef285cb9d647efd21d2a

General

Target
SecuriteInfo.com.Trojan.Agent.FRJZ.29036.8617.xlsm
Size 83KB
Sample220113-3thd8addbk
SHA256 48f75fe3ade801f9f0595a0e404a181e7a039a96f312ef285cb9d647efd21d2a
MD5 21bfbb28d58b4ba4d3da02ec4811bb23
SHA1 6bab15352cf8bbb21606f344be644a64e5b6a950
SHA512 c909dce0704cbfe81d9e5771ae647d56f8b75f9d3aad317bbcee4b71c6258dc9a9058fd4b437a88eb983d88888c986c6bfdb17c45b414a6a0ad8b8628d68db4d
MD5 SHA1 SHA512

Score

10^/10

suricata

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper
http://robotically.xyz/wp-content/XtKkx/

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	4884	3712	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
40	4652	rundll32.exe
41	4652	rundll32.exe
43	4652	rundll32.exe

Downloads MZ/PE file

Loads dropped DLL 2 IoCs

pid	Process
4884	rundll32.exe
4952	rundll32.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\Lljgkcfg\zmbbc.cmt	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\~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

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
3712	EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4652	rundll32.exe
4652	rundll32.exe

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
3712	EXCEL.EXE
3712	EXCEL.EXE
3712	EXCEL.EXE
3712	EXCEL.EXE
3712	EXCEL.EXE
3712	EXCEL.EXE
3712	EXCEL.EXE
3712	EXCEL.EXE
3712	EXCEL.EXE
3712	EXCEL.EXE
3712	EXCEL.EXE
3712	EXCEL.EXE

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 3712 wrote to memory of 4884	3712	EXCEL.EXE	70
PID 3712 wrote to memory of 4884	3712	EXCEL.EXE	70
PID 3712 wrote to memory of 4884	3712	EXCEL.EXE	70
PID 4884 wrote to memory of 4952	4884	rundll32.exe	71
PID 4884 wrote to memory of 4952	4884	rundll32.exe	71
PID 4884 wrote to memory of 4952	4884	rundll32.exe	71
PID 4952 wrote to memory of 1520	4952	rundll32.exe	72
PID 4952 wrote to memory of 1520	4952	rundll32.exe	72
PID 4952 wrote to memory of 1520	4952	rundll32.exe	72
PID 1520 wrote to memory of 4652	1520	rundll32.exe	73
PID 1520 wrote to memory of 4652	1520	rundll32.exe	73
PID 1520 wrote to memory of 4652	1520	rundll32.exe	73

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.29036.8617.xlsm"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3712
- 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:4884
- - 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:4952
  - - C:\Windows\SysWOW64\rundll32.exe
      C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Lljgkcfg\zmbbc.cmt",BJECuRCPgEpHkbm
      4⤵
      Suspicious use of WriteProcessMemory
      PID:1520
    - - C:\Windows\SysWOW64\rundll32.exe
        
        C:\Windows\SysWOW64\rundll32.exe "C:\Windows\System32\Lljgkcfg\zmbbc.cmt",DllRegisterServer
        5⤵
        Blocklisted process makes network request
        Suspicious behavior: EnumeratesProcesses
        
        PID:4652

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/3712-120-0x0000024F074D0000-0x0000024F074D2000-memory.dmp

Download

memory/3712-119-0x0000024F074D0000-0x0000024F074D2000-memory.dmp

Download

memory/3712-121-0x00007FFE71400000-0x00007FFE71410000-memory.dmp

Download

memory/3712-122-0x0000024F074D0000-0x0000024F074D2000-memory.dmp

Download

memory/3712-128-0x00007FFE6D890000-0x00007FFE6D8A0000-memory.dmp

Download

memory/3712-129-0x00007FFE6D890000-0x00007FFE6D8A0000-memory.dmp

Download

memory/3712-115-0x00007FFE71400000-0x00007FFE71410000-memory.dmp

Download

memory/3712-118-0x00007FFE71400000-0x00007FFE71410000-memory.dmp

Download

memory/3712-117-0x00007FFE71400000-0x00007FFE71410000-memory.dmp

Download

memory/3712-116-0x00007FFE71400000-0x00007FFE71410000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads