cce90115dbb29f91192ea44a98616dbd6b6f4a74e76c8eefe004edba731635b7

General

Target

824524892.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	3480	2060	rundll32.exe	EXCEL.EXE

Downloads MZ/PE file
Loads dropped DLL 2 IoCs

Processes:

rundll32.exerundll32.exe

pid process

3480 rundll32.exe
2696 rundll32.exe
Drops file in System32 directory 1 IoCs

Processes:

rundll32.exe

description ioc process

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

System Information Discovery
T1082

pid	process
3480	rundll32.exe
2696	rundll32.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\Rdqaanqzjf\wsdokrjervve.qlf	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

2060 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
2060	EXCEL.EXE
2060	EXCEL.EXE
2060	EXCEL.EXE
2060	EXCEL.EXE
2060	EXCEL.EXE
2060	EXCEL.EXE
2060	EXCEL.EXE
2060	EXCEL.EXE
2060	EXCEL.EXE
2060	EXCEL.EXE
2060	EXCEL.EXE
2060	EXCEL.EXE

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

EXCEL.EXErundll32.exerundll32.exe

description	pid	process	target process
PID 2060 wrote to memory of 3480	2060	EXCEL.EXE	rundll32.exe
PID 2060 wrote to memory of 3480	2060	EXCEL.EXE	rundll32.exe
PID 2060 wrote to memory of 3480	2060	EXCEL.EXE	rundll32.exe
PID 3480 wrote to memory of 2696	3480	rundll32.exe	rundll32.exe
PID 3480 wrote to memory of 2696	3480	rundll32.exe	rundll32.exe
PID 3480 wrote to memory of 2696	3480	rundll32.exe	rundll32.exe
PID 2696 wrote to memory of 4020	2696	rundll32.exe	rundll32.exe
PID 2696 wrote to memory of 4020	2696	rundll32.exe	rundll32.exe
PID 2696 wrote to memory of 4020	2696	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\824524892.xlsm"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2060

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:3480

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:2696

C:\Windows\SysWOW64\rundll32.exe
C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Rdqaanqzjf\wsdokrjervve.qlf",FNBNxbWQPEXbwq
4⤵
PID:4020

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

3

T1082

Query Registry

2

T1012

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\adi.ocx
MD5
76dc489d0ea1bc0f35d3d0e7da139861

SHA1
3c4653a45d06717224ba7ab34dd4b1969141a938

SHA256
17e14a479bb0eebf88b7d5eaddfa6d88a4c57b299d04191a315920ad8faafbcf

SHA512
752bf51d88294209ca5ac0a1b93987aacda0fdef948bc93e393dcdb6b5e9848cdb3072dc46dec8cabba935463c03201fbf3ee5b68fb5771ae8bf9e853a1f3ca4

Download Submit
\Users\Admin\adi.ocx
MD5
76dc489d0ea1bc0f35d3d0e7da139861

SHA1
3c4653a45d06717224ba7ab34dd4b1969141a938

SHA256
17e14a479bb0eebf88b7d5eaddfa6d88a4c57b299d04191a315920ad8faafbcf

SHA512
752bf51d88294209ca5ac0a1b93987aacda0fdef948bc93e393dcdb6b5e9848cdb3072dc46dec8cabba935463c03201fbf3ee5b68fb5771ae8bf9e853a1f3ca4

Download Submit
\Users\Admin\adi.ocx
MD5
76dc489d0ea1bc0f35d3d0e7da139861

SHA1
3c4653a45d06717224ba7ab34dd4b1969141a938

SHA256
17e14a479bb0eebf88b7d5eaddfa6d88a4c57b299d04191a315920ad8faafbcf

SHA512
752bf51d88294209ca5ac0a1b93987aacda0fdef948bc93e393dcdb6b5e9848cdb3072dc46dec8cabba935463c03201fbf3ee5b68fb5771ae8bf9e853a1f3ca4

Download Submit
memory/2060-115-0x00007FFDEE7B0000-0x00007FFDEE7C0000-memory.dmp

Filesize
64KB

Download
memory/2060-116-0x00007FFDEE7B0000-0x00007FFDEE7C0000-memory.dmp

Filesize
64KB

Download
memory/2060-117-0x00007FFDEE7B0000-0x00007FFDEE7C0000-memory.dmp

Filesize
64KB

Download
memory/2060-118-0x00007FFDEE7B0000-0x00007FFDEE7C0000-memory.dmp

Filesize
64KB

Download
memory/2060-119-0x00007FFDEE7B0000-0x00007FFDEE7C0000-memory.dmp

Filesize
64KB

Download
memory/2060-120-0x0000028EAB0B0000-0x0000028EAB0B2000-memory.dmp

Filesize
8KB

Download
memory/2060-121-0x0000028EAB0B0000-0x0000028EAB0B2000-memory.dmp

Filesize
8KB

Download
memory/2060-122-0x0000028EAB0B0000-0x0000028EAB0B2000-memory.dmp

Filesize
8KB

Download
memory/2696-279-0x0000000000000000-mapping.dmp

Download
memory/2696-283-0x00000000032E0000-0x000000000338E000-memory.dmp

Filesize
696KB

Download
memory/3480-278-0x0000000000C30000-0x0000000000D7A000-memory.dmp

Filesize
1.3MB

Download
memory/3480-269-0x0000000000000000-mapping.dmp

Download
memory/4020-284-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads