d041eb4d27665d30fa516a31242774fa89c5e50f30253637454ca9d6db135dfb

General

Target

2d8078458561a6fcfce9c3921c79bc93.xls
Size

113KB
MD5

2d8078458561a6fcfce9c3921c79bc93
SHA1

6a54ecb2288e38f79ede46898c374308e5810b13
SHA256

d041eb4d27665d30fa516a31242774fa89c5e50f30253637454ca9d6db135dfb
SHA512

1e166ac645c5ff25e6501965a2d411f910d73d2c9910a86524ea5cea723b954fba525c812f5456553fbf88344ffe7d50639e156375787e9b585d3a44da99d825

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

http://ordinateur.ogivart.us/editor/Qpo7OAOnbe/

Signatures

Process spawned unexpected child process 1 IoCs

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

Processes:

rundll32.exe

description	pid	pid_target	process	target process
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3740	912	rundll32.exe	EXCEL.EXE

Blocklisted process makes network request 1 IoCs

Processes:

rundll32.exe

flow pid process

41 3692 rundll32.exe
Downloads MZ/PE file
Loads dropped DLL 2 IoCs

Processes:

rundll32.exerundll32.exe

pid process

3740 rundll32.exe
848 rundll32.exe
Drops file in System32 directory 1 IoCs

Processes:

rundll32.exe

description ioc process

File opened for modification C:\Windows\SysWOW64\Qzaizer\wskaropnn.tpl rundll32.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

flow	pid	process
41	3692	rundll32.exe

pid	process
3740	rundll32.exe
848	rundll32.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\Qzaizer\wskaropnn.tpl	rundll32.exe

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

Processes:

EXCEL.EXE

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

Processes:

EXCEL.EXE

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

Processes:

EXCEL.EXE

pid process

912 EXCEL.EXE
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

rundll32.exe

pid process

3692 rundll32.exe
3692 rundll32.exe

pid	process
3692	rundll32.exe
3692	rundll32.exe

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
912	EXCEL.EXE
912	EXCEL.EXE
912	EXCEL.EXE
912	EXCEL.EXE
912	EXCEL.EXE
912	EXCEL.EXE
912	EXCEL.EXE
912	EXCEL.EXE
912	EXCEL.EXE
912	EXCEL.EXE
912	EXCEL.EXE
912	EXCEL.EXE

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

EXCEL.EXErundll32.exerundll32.exerundll32.exe

description	pid	process	target process
PID 912 wrote to memory of 3740	912	EXCEL.EXE	rundll32.exe
PID 912 wrote to memory of 3740	912	EXCEL.EXE	rundll32.exe
PID 912 wrote to memory of 3740	912	EXCEL.EXE	rundll32.exe
PID 3740 wrote to memory of 848	3740	rundll32.exe	rundll32.exe
PID 3740 wrote to memory of 848	3740	rundll32.exe	rundll32.exe
PID 3740 wrote to memory of 848	3740	rundll32.exe	rundll32.exe
PID 848 wrote to memory of 3724	848	rundll32.exe	rundll32.exe
PID 848 wrote to memory of 3724	848	rundll32.exe	rundll32.exe
PID 848 wrote to memory of 3724	848	rundll32.exe	rundll32.exe
PID 3724 wrote to memory of 3692	3724	rundll32.exe	rundll32.exe
PID 3724 wrote to memory of 3692	3724	rundll32.exe	rundll32.exe
PID 3724 wrote to memory of 3692	3724	rundll32.exe	rundll32.exe

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\2d8078458561a6fcfce9c3921c79bc93.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:912
- 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:3740
- - 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:848
  - - C:\Windows\SysWOW64\rundll32.exe
      C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Qzaizer\wskaropnn.tpl",FxagLAodyCP
      4⤵
      Suspicious use of WriteProcessMemory
      PID:3724
    - - C:\Windows\SysWOW64\rundll32.exe
        
        C:\Windows\SysWOW64\rundll32.exe "C:\Windows\System32\Qzaizer\wskaropnn.tpl",DllRegisterServer
        5⤵
        Blocklisted process makes network request
        Suspicious behavior: EnumeratesProcesses
        
        PID:3692

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

C:\Users\Admin\sun.ocx

MD5
8d1e3d273a2b657adba9ef908c9c7f9c

SHA1
2baa1857daf192135b2281469b2bf8f4e04a0092

SHA256
867911a57f78acc85fd70cd124ca9ac8e875e85837685cabc9adb1fec490abc0

SHA512
ab93a2273ea4db83a4656a2d0b1af582200baef1db8d3d7a8b67ef83e475f195cb310917dc03dad9961ca18a35ecfa4770c9b996fde2b064c159a80ee2ce826e

Download Submit
\Users\Admin\sun.ocx

MD5
8d1e3d273a2b657adba9ef908c9c7f9c

SHA1
2baa1857daf192135b2281469b2bf8f4e04a0092

SHA256
867911a57f78acc85fd70cd124ca9ac8e875e85837685cabc9adb1fec490abc0

SHA512
ab93a2273ea4db83a4656a2d0b1af582200baef1db8d3d7a8b67ef83e475f195cb310917dc03dad9961ca18a35ecfa4770c9b996fde2b064c159a80ee2ce826e

Download Submit
\Users\Admin\sun.ocx

MD5
8d1e3d273a2b657adba9ef908c9c7f9c

SHA1
2baa1857daf192135b2281469b2bf8f4e04a0092

SHA256
867911a57f78acc85fd70cd124ca9ac8e875e85837685cabc9adb1fec490abc0

SHA512
ab93a2273ea4db83a4656a2d0b1af582200baef1db8d3d7a8b67ef83e475f195cb310917dc03dad9961ca18a35ecfa4770c9b996fde2b064c159a80ee2ce826e

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memory/848-266-0x0000000000000000-mapping.dmp

Download
memory/912-119-0x00007FFE01550000-0x00007FFE01560000-memory.dmp

Filesize
64KB

Download
memory/912-120-0x0000022DB5720000-0x0000022DB5722000-memory.dmp

Filesize
8KB

Download
memory/912-121-0x0000022DB5720000-0x0000022DB5722000-memory.dmp

Filesize
8KB

Download
memory/912-122-0x0000022DB5720000-0x0000022DB5722000-memory.dmp

Filesize
8KB

Download
memory/912-128-0x00007FFDFE4D0000-0x00007FFDFE4E0000-memory.dmp

Filesize
64KB

Download
memory/912-129-0x00007FFDFE4D0000-0x00007FFDFE4E0000-memory.dmp

Filesize
64KB

Download
memory/912-115-0x00007FFE01550000-0x00007FFE01560000-memory.dmp

Filesize
64KB

Download
memory/912-118-0x00007FFE01550000-0x00007FFE01560000-memory.dmp

Filesize
64KB

Download
memory/912-117-0x00007FFE01550000-0x00007FFE01560000-memory.dmp

Filesize
64KB

Download
memory/912-116-0x00007FFE01550000-0x00007FFE01560000-memory.dmp

Filesize
64KB

Download
memory/3692-284-0x0000000000000000-mapping.dmp

Download
memory/3724-279-0x0000000000000000-mapping.dmp

Download
memory/3740-261-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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