90c68041ea2e1e9b44724b9e68a58b8490996a52a5c2eda58d2eef0247b37283

General

Target
SecuriteInfo.com.Heur.31523.14451.xlsm
Size 83KB
Sample220112-dp7e4sbacm
SHA256 90c68041ea2e1e9b44724b9e68a58b8490996a52a5c2eda58d2eef0247b37283
MD5 50915240c6f859d6614fba9240e95825
SHA1 9eeed3ed71da007774a7cf8a43db7ba432f7c322
SHA512 af2d99733fc96672c229bd03c80cb78fa6b88dd35828794131e43322238dd28fcf4221784bae82913f3b44f83625a80684a24a4f7645fddc5eba918b695b874f
MD5 SHA1 SHA512

Score

10^/10

suricata

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper
http://unifiedpharma.com/wp-admin/ildi5K2aTIrdvEobQ/

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	2436	2092	rundll32.exe	68

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

Blocklisted process makes network request 1 IoCs

flow	pid	Process
40	3968	rundll32.exe

Downloads MZ/PE file

Loads dropped DLL 2 IoCs

pid	Process
2436	rundll32.exe
1960	rundll32.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\Staohoseiltdsi\zupvt.ufl	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 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
2092	EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3968	rundll32.exe
3968	rundll32.exe

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
2092	EXCEL.EXE
2092	EXCEL.EXE
2092	EXCEL.EXE
2092	EXCEL.EXE
2092	EXCEL.EXE
2092	EXCEL.EXE
2092	EXCEL.EXE
2092	EXCEL.EXE
2092	EXCEL.EXE
2092	EXCEL.EXE
2092	EXCEL.EXE
2092	EXCEL.EXE

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2092 wrote to memory of 2436	2092	EXCEL.EXE	72
PID 2092 wrote to memory of 2436	2092	EXCEL.EXE	72
PID 2092 wrote to memory of 2436	2092	EXCEL.EXE	72
PID 2436 wrote to memory of 1960	2436	rundll32.exe	73
PID 2436 wrote to memory of 1960	2436	rundll32.exe	73
PID 2436 wrote to memory of 1960	2436	rundll32.exe	73
PID 1960 wrote to memory of 2828	1960	rundll32.exe	74
PID 1960 wrote to memory of 2828	1960	rundll32.exe	74
PID 1960 wrote to memory of 2828	1960	rundll32.exe	74
PID 2828 wrote to memory of 3968	2828	rundll32.exe	75
PID 2828 wrote to memory of 3968	2828	rundll32.exe	75
PID 2828 wrote to memory of 3968	2828	rundll32.exe	75

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.Heur.31523.14451.xlsm"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2092
- C:\Windows\SysWow64\rundll32.exe
  C:\Windows\SysWow64\rundll32.exe ..\adi.ocx,D"&"l"&"lR"&"egister"&"Serve"&"r
  2⤵
  - Process spawned unexpected child process
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:2436
- - C:\Windows\SysWOW64\rundll32.exe
    C:\Windows\SysWOW64\rundll32.exe "C:\Users\Admin\adi.ocx",DllRegisterServer
    3⤵
    - Loads dropped DLL
    - Drops file in System32 directory
    - Suspicious use of WriteProcessMemory
    PID:1960
  - - C:\Windows\SysWOW64\rundll32.exe
      C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Staohoseiltdsi\zupvt.ufl",ptVxdpPU
      4⤵
      Suspicious use of WriteProcessMemory
      PID:2828
    - - C:\Windows\SysWOW64\rundll32.exe
        
        C:\Windows\SysWOW64\rundll32.exe "C:\Windows\System32\Staohoseiltdsi\zupvt.ufl",DllRegisterServer
        5⤵
        Blocklisted process makes network request
        Suspicious behavior: EnumeratesProcesses
        
        PID:3968

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/2092-119-0x00007FFB38F60000-0x00007FFB38F70000-memory.dmp

Download

memory/2092-120-0x00000251ADCE0000-0x00000251ADCE2000-memory.dmp

Download

memory/2092-121-0x00000251ADCE0000-0x00000251ADCE2000-memory.dmp

Download

memory/2092-122-0x00000251ADCE0000-0x00000251ADCE2000-memory.dmp

Download

memory/2092-128-0x00007FFB36410000-0x00007FFB36420000-memory.dmp

Download

memory/2092-129-0x00007FFB36410000-0x00007FFB36420000-memory.dmp

Download

memory/2092-115-0x00007FFB38F60000-0x00007FFB38F70000-memory.dmp

Download

memory/2092-118-0x00007FFB38F60000-0x00007FFB38F70000-memory.dmp

Download

memory/2092-117-0x00007FFB38F60000-0x00007FFB38F70000-memory.dmp

Download

memory/2092-116-0x00007FFB38F60000-0x00007FFB38F70000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads