e06e1cc33f42f59f86b44d17359234628540e287dc10a39ac66ae21449abd380

General

Target
SecuriteInfo.com.Heur.29683.406.xlsm
Size 83KB
Sample220112-chabcsafa8
SHA256 e06e1cc33f42f59f86b44d17359234628540e287dc10a39ac66ae21449abd380
MD5 ec04746eedc3828cdb7d9e30fc4ec547
SHA1 f2565da5d7d0bbd655466dc2de286f5350d2c13a
SHA512 27cdda184f4631f22c057eb90b7ae853499a005a235be11d5149bb00f71f2d16c428d8c35520ef9a7afef76ffe0fa97f9b38506d2bb86ba60895c8b9f4f73289
MD5 SHA1 SHA512

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.

description	pid	pid_target	Process	procid_target
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3184	556	rundll32.exe	68

Blocklisted process makes network request 1 IoCs

flow	pid	Process
44	1956	rundll32.exe

Downloads MZ/PE file

Loads dropped DLL 2 IoCs

pid	Process
3184	rundll32.exe
1564	rundll32.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\Roshjppjptesl\sloqdbkc.kmf	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
556	EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1956	rundll32.exe
1956	rundll32.exe

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
556	EXCEL.EXE
556	EXCEL.EXE
556	EXCEL.EXE
556	EXCEL.EXE
556	EXCEL.EXE
556	EXCEL.EXE
556	EXCEL.EXE
556	EXCEL.EXE
556	EXCEL.EXE
556	EXCEL.EXE
556	EXCEL.EXE
556	EXCEL.EXE

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 556 wrote to memory of 3184	556	EXCEL.EXE	72
PID 556 wrote to memory of 3184	556	EXCEL.EXE	72
PID 556 wrote to memory of 3184	556	EXCEL.EXE	72
PID 3184 wrote to memory of 1564	3184	rundll32.exe	73
PID 3184 wrote to memory of 1564	3184	rundll32.exe	73
PID 3184 wrote to memory of 1564	3184	rundll32.exe	73
PID 1564 wrote to memory of 1388	1564	rundll32.exe	74
PID 1564 wrote to memory of 1388	1564	rundll32.exe	74
PID 1564 wrote to memory of 1388	1564	rundll32.exe	74
PID 1388 wrote to memory of 1956	1388	rundll32.exe	75
PID 1388 wrote to memory of 1956	1388	rundll32.exe	75
PID 1388 wrote to memory of 1956	1388	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.29683.406.xlsm"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:556
- 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:3184
- - 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:1564
  - - C:\Windows\SysWOW64\rundll32.exe
      C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Roshjppjptesl\sloqdbkc.kmf",uThkSwZrcEiPvk
      4⤵
      Suspicious use of WriteProcessMemory
      PID:1388
    - - C:\Windows\SysWOW64\rundll32.exe
        
        C:\Windows\SysWOW64\rundll32.exe "C:\Windows\System32\Roshjppjptesl\sloqdbkc.kmf",DllRegisterServer
        5⤵
        Blocklisted process makes network request
        Suspicious behavior: EnumeratesProcesses
        
        PID:1956

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/556-118-0x00007FF93ACF0000-0x00007FF93AD00000-memory.dmp

Download

memory/556-120-0x0000023192E30000-0x0000023192E32000-memory.dmp

Download

memory/556-119-0x0000023192E30000-0x0000023192E32000-memory.dmp

Download

memory/556-121-0x00007FF93ACF0000-0x00007FF93AD00000-memory.dmp

Download

memory/556-122-0x0000023192E30000-0x0000023192E32000-memory.dmp

Download

memory/556-115-0x00007FF93ACF0000-0x00007FF93AD00000-memory.dmp

Download

memory/556-117-0x00007FF93ACF0000-0x00007FF93AD00000-memory.dmp

Download

memory/556-116-0x00007FF93ACF0000-0x00007FF93AD00000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads