d4ab41fa48cb03ac55da7c05e857ea1b5a88a2b31cde074f3036f6129662a10f

General

Target

d4ab41fa48cb03ac55da7c05e857ea1b5a88a2b31cde074f3036f6129662a10f.xls
Size

113KB
MD5

d8ff65d5d73710d9ca0e52bd62e2fdc8
SHA1

43ed27a13cd60ede549c9eb3f3be383474539f21
SHA256

d4ab41fa48cb03ac55da7c05e857ea1b5a88a2b31cde074f3036f6129662a10f
SHA512

11862cfb48268064f7cc292d377158f2b27fab93c41ce6bbcf37ab3ee99d042d8a7b39c7a59f0522315cb78369d3bdb8f5c20c8c3b90dfaa2b46836b2285873d

Score

10^/10

suricata

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

http://gaidov.bg/wp-includes/Ug/

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	2320	3500	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
35	4832	rundll32.exe
37	4832	rundll32.exe

Downloads MZ/PE file

Loads dropped DLL 2 IoCs

pid	Process
2320	rundll32.exe
2464	rundll32.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\Mzqddwzzvayr\qillpnvpcz.ihq	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 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
3500	EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4832	rundll32.exe
4832	rundll32.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
3500	EXCEL.EXE
3500	EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
3500	EXCEL.EXE
3500	EXCEL.EXE
3500	EXCEL.EXE
3500	EXCEL.EXE
3500	EXCEL.EXE
3500	EXCEL.EXE
3500	EXCEL.EXE
3500	EXCEL.EXE
3500	EXCEL.EXE
3500	EXCEL.EXE
3500	EXCEL.EXE
3500	EXCEL.EXE

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 3500 wrote to memory of 2320	3500	EXCEL.EXE	70
PID 3500 wrote to memory of 2320	3500	EXCEL.EXE	70
PID 3500 wrote to memory of 2320	3500	EXCEL.EXE	70
PID 2320 wrote to memory of 2464	2320	rundll32.exe	71
PID 2320 wrote to memory of 2464	2320	rundll32.exe	71
PID 2320 wrote to memory of 2464	2320	rundll32.exe	71
PID 2464 wrote to memory of 2916	2464	rundll32.exe	72
PID 2464 wrote to memory of 2916	2464	rundll32.exe	72
PID 2464 wrote to memory of 2916	2464	rundll32.exe	72
PID 2916 wrote to memory of 4832	2916	rundll32.exe	73
PID 2916 wrote to memory of 4832	2916	rundll32.exe	73
PID 2916 wrote to memory of 4832	2916	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\d4ab41fa48cb03ac55da7c05e857ea1b5a88a2b31cde074f3036f6129662a10f.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3500
- C:\Windows\SysWow64\rundll32.exe
  C:\Windows\SysWow64\rundll32.exe ..\sun.ocx,D"&"l"&"lR"&"egister"&"Serve"&"r
  2⤵
  - Process spawned unexpected child process
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:2320
- - C:\Windows\SysWOW64\rundll32.exe
    C:\Windows\SysWOW64\rundll32.exe "C:\Users\Admin\sun.ocx",DllRegisterServer
    3⤵
    - Loads dropped DLL
    - Drops file in System32 directory
    - Suspicious use of WriteProcessMemory
    PID:2464
  - - C:\Windows\SysWOW64\rundll32.exe
      C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Mzqddwzzvayr\qillpnvpcz.ihq",UgPzRx
      4⤵
      Suspicious use of WriteProcessMemory
      PID:2916
    - - C:\Windows\SysWOW64\rundll32.exe
        
        C:\Windows\SysWOW64\rundll32.exe "C:\Windows\System32\Mzqddwzzvayr\qillpnvpcz.ihq",DllRegisterServer
        5⤵
        Blocklisted process makes network request
        Suspicious behavior: EnumeratesProcesses
        
        PID:4832

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/3500-119-0x00007FFBCE9E0000-0x00007FFBCE9F0000-memory.dmp

Filesize
64KB

Download
memory/3500-128-0x00007FFBCE9E0000-0x00007FFBCE9F0000-memory.dmp

Filesize
64KB

Download
memory/3500-122-0x000001AFAD460000-0x000001AFAD462000-memory.dmp

Filesize
8KB

Download
memory/3500-120-0x000001AFAD460000-0x000001AFAD462000-memory.dmp

Filesize
8KB

Download
memory/3500-121-0x000001AFAD460000-0x000001AFAD462000-memory.dmp

Filesize
8KB

Download
memory/3500-116-0x00007FFBCE9E0000-0x00007FFBCE9F0000-memory.dmp

Filesize
64KB

Download
memory/3500-118-0x00007FFBCE9E0000-0x00007FFBCE9F0000-memory.dmp

Filesize
64KB

Download
memory/3500-117-0x00007FFBCE9E0000-0x00007FFBCE9F0000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads