cce90115dbb29f91192ea44a98616dbd6b6f4a74e76c8eefe004edba731635b7

General

Target

cce90115dbb29f91192ea44a98616dbd6b6f4a74e76c8eefe004edba731635b7.xlsm
Size

83KB
MD5

3a34a8f95b92bec1e9aefb1235d27dfd
SHA1

5aa96c293a519112b6453657c103add288a84cdf
SHA256

cce90115dbb29f91192ea44a98616dbd6b6f4a74e76c8eefe004edba731635b7
SHA512

dcaaac4a8cbcb8c2472bf015c3da35a3864424f809453fe3340e94e88d9ddeeb2a94321b4edf1ca07637b9ea593546a7b0d66626a588df4ace084afc1ce4fc48

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

http://www.be-pu.com/4.hana/Y1XWpb1zWMRD/

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	1952	2520	rundll32.exe	EXCEL.EXE

Blocklisted process makes network request 2 IoCs

Processes:

rundll32.exe

flow pid process

41 1428 rundll32.exe
43 1428 rundll32.exe
Downloads MZ/PE file
Loads dropped DLL 2 IoCs

Processes:

rundll32.exerundll32.exe

pid process

1952 rundll32.exe
1696 rundll32.exe
Drops file in System32 directory 1 IoCs

Processes:

rundll32.exe

description ioc process

File opened for modification C:\Windows\SysWOW64\Yzkcm\igdd.ppg 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	1428	rundll32.exe
43	1428	rundll32.exe

pid	process
1952	rundll32.exe
1696	rundll32.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\Yzkcm\igdd.ppg	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

2520 EXCEL.EXE
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

rundll32.exe

pid process

1428 rundll32.exe
1428 rundll32.exe

pid	process
1428	rundll32.exe
1428	rundll32.exe

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
2520	EXCEL.EXE
2520	EXCEL.EXE
2520	EXCEL.EXE
2520	EXCEL.EXE
2520	EXCEL.EXE
2520	EXCEL.EXE
2520	EXCEL.EXE
2520	EXCEL.EXE
2520	EXCEL.EXE
2520	EXCEL.EXE
2520	EXCEL.EXE
2520	EXCEL.EXE

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

EXCEL.EXErundll32.exerundll32.exerundll32.exe

description	pid	process	target process
PID 2520 wrote to memory of 1952	2520	EXCEL.EXE	rundll32.exe
PID 2520 wrote to memory of 1952	2520	EXCEL.EXE	rundll32.exe
PID 2520 wrote to memory of 1952	2520	EXCEL.EXE	rundll32.exe
PID 1952 wrote to memory of 1696	1952	rundll32.exe	rundll32.exe
PID 1952 wrote to memory of 1696	1952	rundll32.exe	rundll32.exe
PID 1952 wrote to memory of 1696	1952	rundll32.exe	rundll32.exe
PID 1696 wrote to memory of 3384	1696	rundll32.exe	rundll32.exe
PID 1696 wrote to memory of 3384	1696	rundll32.exe	rundll32.exe
PID 1696 wrote to memory of 3384	1696	rundll32.exe	rundll32.exe
PID 3384 wrote to memory of 1428	3384	rundll32.exe	rundll32.exe
PID 3384 wrote to memory of 1428	3384	rundll32.exe	rundll32.exe
PID 3384 wrote to memory of 1428	3384	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\cce90115dbb29f91192ea44a98616dbd6b6f4a74e76c8eefe004edba731635b7.xlsm"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2520

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:1952

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:1696

C:\Windows\SysWOW64\rundll32.exe
C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Yzkcm\igdd.ppg",cUden
4⤵
- Suspicious use of WriteProcessMemory
PID:3384

C:\Windows\SysWOW64\rundll32.exe
C:\Windows\SysWOW64\rundll32.exe "C:\Windows\System32\Yzkcm\igdd.ppg",DllRegisterServer
5⤵
- Blocklisted process makes network request
- Suspicious behavior: EnumeratesProcesses
PID:1428

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\adi.ocx

MD5
9c9e8e270fcd7c391bee9b701717aa4d

SHA1
fd3a432cd35a16d40b29a2b8582082a2491007fb

SHA256
04c64efdba60d0f7439ddd9042c8ff545b95327eda2afc0827b6b273135afdd2

SHA512
5ef0ceccef14f4ab07f4e8b2214b2ae56425b2de989fcbe781141edad59b5203a9efeb92e2abc66106d1121a0ea01c2db27f640f63fcfb28dbcaa87e652c5aa5

Download Submit
\Users\Admin\adi.ocx

MD5
9c9e8e270fcd7c391bee9b701717aa4d

SHA1
fd3a432cd35a16d40b29a2b8582082a2491007fb

SHA256
04c64efdba60d0f7439ddd9042c8ff545b95327eda2afc0827b6b273135afdd2

SHA512
5ef0ceccef14f4ab07f4e8b2214b2ae56425b2de989fcbe781141edad59b5203a9efeb92e2abc66106d1121a0ea01c2db27f640f63fcfb28dbcaa87e652c5aa5

Download Submit
\Users\Admin\adi.ocx

MD5
9c9e8e270fcd7c391bee9b701717aa4d

SHA1
fd3a432cd35a16d40b29a2b8582082a2491007fb

SHA256
04c64efdba60d0f7439ddd9042c8ff545b95327eda2afc0827b6b273135afdd2

SHA512
5ef0ceccef14f4ab07f4e8b2214b2ae56425b2de989fcbe781141edad59b5203a9efeb92e2abc66106d1121a0ea01c2db27f640f63fcfb28dbcaa87e652c5aa5

Download Submit
memory/1428-303-0x0000000000000000-mapping.dmp

Download
memory/1696-283-0x0000000000000000-mapping.dmp

Download
memory/1952-276-0x0000000000000000-mapping.dmp

Download
memory/2520-119-0x00007FF7E0830000-0x00007FF7E0840000-memory.dmp

Filesize
64KB

Download
memory/2520-122-0x0000019DCF490000-0x0000019DCF492000-memory.dmp

Filesize
8KB

Download
memory/2520-128-0x00007FF7DCCC0000-0x00007FF7DCCD0000-memory.dmp

Filesize
64KB

Download
memory/2520-129-0x00007FF7DCCC0000-0x00007FF7DCCD0000-memory.dmp

Filesize
64KB

Download
memory/2520-143-0x0000019DCF490000-0x0000019DCF492000-memory.dmp

Filesize
8KB

Download
memory/2520-120-0x0000019DCF490000-0x0000019DCF492000-memory.dmp

Filesize
8KB

Download
memory/2520-121-0x0000019DCF490000-0x0000019DCF492000-memory.dmp

Filesize
8KB

Download
memory/2520-115-0x00007FF7E0830000-0x00007FF7E0840000-memory.dmp

Filesize
64KB

Download
memory/2520-118-0x00007FF7E0830000-0x00007FF7E0840000-memory.dmp

Filesize
64KB

Download
memory/2520-117-0x00007FF7E0830000-0x00007FF7E0840000-memory.dmp

Filesize
64KB

Download
memory/2520-116-0x00007FF7E0830000-0x00007FF7E0840000-memory.dmp

Filesize
64KB

Download
memory/3384-298-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads