83d3fbe275cdaf290cbe7b9b9e6ac3283992a23a5138604c31f5f698d97b9249

Analysis

max time kernel
150s
max time network
82s
platform
windows7_x64
resource
win7v200430
submitted
09/07/2020, 11:49

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General

Target

Vessel Doc.xlsm
Size

51KB
MD5

72f51b4c2716e361a9e2d2fc602dd87a
SHA1

8fe3c6e18ac9f56746ad3460976c8a8496a85ea8
SHA256

83d3fbe275cdaf290cbe7b9b9e6ac3283992a23a5138604c31f5f698d97b9249
SHA512

0033afeba21d012c5924c87c56d447abaf83484b32e283c40ec2af3f9c8cb608659020f1f8eaca73d17da6b4bb43df997eca90c209bafd98413d432164be46f8

Score

10^/10

spyware

Malware Config

Signatures

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
888	EXCEL.EXE
888	EXCEL.EXE
888	EXCEL.EXE
1496	Ce51Vx1v.exe

Launches Equation Editor 1 TTPs 1 IoCs

Equation Editor is an old Office component often targeted by exploits such as CVE-2017-11882.

exploit

Exploitation for Client Execution

T1203

pid	Process
1464	EQNEDT32.EXE

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task

T1053

pid	Process
1560	schtasks.exe

Blacklisted process makes network request 2 IoCs

flow	pid	Process
1	1512	cscript.exe
2	756	cscript.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1616	Ce51Vx1v.exe
1496	Ce51Vx1v.exe
1496	Ce51Vx1v.exe

Script User-Agent 2 IoCs

description	flow	ioc
HTTP User-Agent header	1	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
HTTP User-Agent header	2	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware

Data from Local System
T1005

Credentials in Files
T1081

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
888	EXCEL.EXE

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 1464 wrote to memory of 1016	1464	EQNEDT32.EXE	25
PID 1464 wrote to memory of 1016	1464	EQNEDT32.EXE	25
PID 1464 wrote to memory of 1016	1464	EQNEDT32.EXE	25
PID 1464 wrote to memory of 1016	1464	EQNEDT32.EXE	25
PID 1016 wrote to memory of 784	1016	cmd.exe	27
PID 1016 wrote to memory of 784	1016	cmd.exe	27
PID 1016 wrote to memory of 784	1016	cmd.exe	27
PID 1016 wrote to memory of 784	1016	cmd.exe	27
PID 888 wrote to memory of 1512	888	EXCEL.EXE	28
PID 888 wrote to memory of 1512	888	EXCEL.EXE	28
PID 888 wrote to memory of 1512	888	EXCEL.EXE	28
PID 784 wrote to memory of 1776	784	cscript.exe	31
PID 784 wrote to memory of 1776	784	cscript.exe	31
PID 784 wrote to memory of 1776	784	cscript.exe	31
PID 784 wrote to memory of 1776	784	cscript.exe	31
PID 1776 wrote to memory of 756	1776	cmd.exe	33
PID 1776 wrote to memory of 756	1776	cmd.exe	33
PID 1776 wrote to memory of 756	1776	cmd.exe	33
PID 1776 wrote to memory of 756	1776	cmd.exe	33
PID 1512 wrote to memory of 1616	1512	cscript.exe	34
PID 1512 wrote to memory of 1616	1512	cscript.exe	34
PID 1512 wrote to memory of 1616	1512	cscript.exe	34
PID 1512 wrote to memory of 1616	1512	cscript.exe	34
PID 1616 wrote to memory of 1560	1616	Ce51Vx1v.exe	37
PID 1616 wrote to memory of 1560	1616	Ce51Vx1v.exe	37
PID 1616 wrote to memory of 1560	1616	Ce51Vx1v.exe	37
PID 1616 wrote to memory of 1560	1616	Ce51Vx1v.exe	37
PID 1616 wrote to memory of 1496	1616	Ce51Vx1v.exe	39
PID 1616 wrote to memory of 1496	1616	Ce51Vx1v.exe	39
PID 1616 wrote to memory of 1496	1616	Ce51Vx1v.exe	39
PID 1616 wrote to memory of 1496	1616	Ce51Vx1v.exe	39
PID 1616 wrote to memory of 1496	1616	Ce51Vx1v.exe	39
PID 1616 wrote to memory of 1496	1616	Ce51Vx1v.exe	39
PID 1616 wrote to memory of 1496	1616	Ce51Vx1v.exe	39
PID 1616 wrote to memory of 1496	1616	Ce51Vx1v.exe	39
PID 1616 wrote to memory of 1496	1616	Ce51Vx1v.exe	39

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\Office14\EXCEL.EXE is not expected to spawn this process	1512	888	cscript.exe	23

Executes dropped EXE 2 IoCs

pid	Process
1616	Ce51Vx1v.exe
1496	Ce51Vx1v.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1616	Ce51Vx1v.exe
Token: SeDebugPrivilege	1496	Ce51Vx1v.exe

NTFS ADS 1 IoCs

description	ioc	Process
File created	C:\programdata\asc.txt:script1.vbs	EXCEL.EXE

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1616 set thread context of 1496	1616	Ce51Vx1v.exe	39

Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
spyware

Data from Local System
T1005

Credentials in Files
T1081
Office loads VBA resources, possible macro or embedded object present

C:\Program Files\Microsoft Office\Office14\EXCEL.EXE
"C:\Program Files\Microsoft Office\Office14\EXCEL.EXE" /dde "C:\Users\Admin\AppData\Local\Temp\Vessel Doc.xlsm"
1⤵
- Suspicious use of SetWindowsHookEx
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of WriteProcessMemory
- NTFS ADS
PID:888
- C:\Windows\System32\cscript.exe
  "C:\Windows\System32\cscript.exe" C:\programdata\asc.txt:script1.vbs
  2⤵
  - Blacklisted process makes network request
  - Suspicious use of WriteProcessMemory
  - Process spawned unexpected child process
  PID:1512
- - C:\programdata\Ce51Vx1v.exe
    C:\programdata\Ce51Vx1v.exe
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    - Executes dropped EXE
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetThreadContext
    PID:1616
  - - C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\YWfTcZJQhDqaq" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD097.tmp"
      4⤵
      Creates scheduled task(s)
      PID:1560
  - - C:\programdata\Ce51Vx1v.exe
      "{path}"
      4⤵
      Suspicious use of SetWindowsHookEx
      Suspicious behavior: EnumeratesProcesses
      Executes dropped EXE
      Suspicious use of AdjustPrivilegeToken
      PID:1496

C:\Program Files\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE
"C:\Program Files\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE" -Embedding
1⤵
- Launches Equation Editor
- Suspicious use of WriteProcessMemory
PID:1464
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ren %tmp%\mm v&cScriPT %tmp%\v?..wsf C
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1016
- - C:\Windows\SysWOW64\cscript.exe
    cScriPT C:\Users\Admin\AppData\Local\Temp\v?..wsf C
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:784
  - - C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c cscript C:\Users\Admin\AppData\Local\Temp\xx.vbs
      4⤵
      Suspicious use of WriteProcessMemory
      PID:1776
    - - C:\Windows\SysWOW64\cscript.exe
        
        cscript C:\Users\Admin\AppData\Local\Temp\xx.vbs
        5⤵
        Blacklisted process makes network request
        
        PID:756

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Exploitation for Client Execution

T1203

Scheduled Task

T1053

Persistence

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Credential Access

Credentials in Files

T1081

Discovery

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/756-15-0x0000000002780000-0x0000000002784000-memory.dmp

Filesize
16KB

Download
memory/784-9-0x0000000002670000-0x0000000002674000-memory.dmp

Filesize
16KB

Download
memory/888-3-0x000000000030B000-0x0000000000310000-memory.dmp

Filesize
20KB

Download
memory/1496-24-0x0000000000400000-0x000000000044A000-memory.dmp

Filesize
296KB

Download
memory/1496-23-0x0000000000400000-0x000000000044A000-memory.dmp

Filesize
296KB

Download
memory/1496-20-0x0000000000400000-0x000000000044A000-memory.dmp

Filesize
296KB

Download
memory/1512-13-0x0000000002670000-0x0000000002674000-memory.dmp

Filesize
16KB

Download