020f81f9c5ff58cce183a45b51770b5fa15486446250d168f492264e71701078

Analysis

max time kernel
128s
max time network
75s
platform
windows7_x64
resource
win7
submitted
10-07-2020 11:20

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General

Target

OBL.xlsm
Size

51KB
MD5

701f9328e7a3342f0dfa48698c6c613b
SHA1

6edc2590af618b480f1c40e2eb7931fc731850bd
SHA256

020f81f9c5ff58cce183a45b51770b5fa15486446250d168f492264e71701078
SHA512

c0998664d42b7915f3a9cdbc517662e0625f02b3d4f06f5ec872d7f71674d3392fa36e4cf72424187bbb5902b8f5797f82c81b41b125c90473e2a2664a58c7fa

Score

10^/10

spyware

Malware Config

Signatures

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
1424	EXCEL.EXE

Executes dropped EXE 2 IoCs

pid	Process
1976	mPCoN67gt4d.exe
1792	mPCoN67gt4d.exe

NTFS ADS 1 IoCs

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

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
Office loads VBA resources, possible macro or embedded object present

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1424	EXCEL.EXE
1424	EXCEL.EXE
1424	EXCEL.EXE
1792	mPCoN67gt4d.exe

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	1808	1424	cscript.exe	23

Blacklisted process makes network request 2 IoCs

flow	pid	Process
1	1808	cscript.exe
2	1524	cscript.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1792	mPCoN67gt4d.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1792	mPCoN67gt4d.exe
1792	mPCoN67gt4d.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
1772	schtasks.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
292	EQNEDT32.EXE

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 292 wrote to memory of 1036	292	EQNEDT32.EXE	25
PID 292 wrote to memory of 1036	292	EQNEDT32.EXE	25
PID 292 wrote to memory of 1036	292	EQNEDT32.EXE	25
PID 292 wrote to memory of 1036	292	EQNEDT32.EXE	25
PID 1036 wrote to memory of 1504	1036	cmd.exe	27
PID 1036 wrote to memory of 1504	1036	cmd.exe	27
PID 1036 wrote to memory of 1504	1036	cmd.exe	27
PID 1036 wrote to memory of 1504	1036	cmd.exe	27
PID 1424 wrote to memory of 1808	1424	EXCEL.EXE	28
PID 1424 wrote to memory of 1808	1424	EXCEL.EXE	28
PID 1424 wrote to memory of 1808	1424	EXCEL.EXE	28
PID 1504 wrote to memory of 1580	1504	cscript.exe	31
PID 1504 wrote to memory of 1580	1504	cscript.exe	31
PID 1504 wrote to memory of 1580	1504	cscript.exe	31
PID 1504 wrote to memory of 1580	1504	cscript.exe	31
PID 1580 wrote to memory of 1524	1580	cmd.exe	33
PID 1580 wrote to memory of 1524	1580	cmd.exe	33
PID 1580 wrote to memory of 1524	1580	cmd.exe	33
PID 1580 wrote to memory of 1524	1580	cmd.exe	33
PID 1808 wrote to memory of 1976	1808	cscript.exe	34
PID 1808 wrote to memory of 1976	1808	cscript.exe	34
PID 1808 wrote to memory of 1976	1808	cscript.exe	34
PID 1808 wrote to memory of 1976	1808	cscript.exe	34
PID 1976 wrote to memory of 1772	1976	mPCoN67gt4d.exe	37
PID 1976 wrote to memory of 1772	1976	mPCoN67gt4d.exe	37
PID 1976 wrote to memory of 1772	1976	mPCoN67gt4d.exe	37
PID 1976 wrote to memory of 1772	1976	mPCoN67gt4d.exe	37
PID 1976 wrote to memory of 1792	1976	mPCoN67gt4d.exe	39
PID 1976 wrote to memory of 1792	1976	mPCoN67gt4d.exe	39
PID 1976 wrote to memory of 1792	1976	mPCoN67gt4d.exe	39
PID 1976 wrote to memory of 1792	1976	mPCoN67gt4d.exe	39
PID 1976 wrote to memory of 1792	1976	mPCoN67gt4d.exe	39
PID 1976 wrote to memory of 1792	1976	mPCoN67gt4d.exe	39
PID 1976 wrote to memory of 1792	1976	mPCoN67gt4d.exe	39
PID 1976 wrote to memory of 1792	1976	mPCoN67gt4d.exe	39
PID 1976 wrote to memory of 1792	1976	mPCoN67gt4d.exe	39

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1976 set thread context of 1792	1976	mPCoN67gt4d.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

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)

C:\Program Files\Microsoft Office\Office14\EXCEL.EXE
"C:\Program Files\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\OBL.xlsm
1⤵
- Suspicious behavior: AddClipboardFormatListener
- NTFS ADS
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1424
- C:\Windows\System32\cscript.exe
  "C:\Windows\System32\cscript.exe" C:\programdata\asc.txt:script1.vbs
  2⤵
  - Process spawned unexpected child process
  - Blacklisted process makes network request
  - Suspicious use of WriteProcessMemory
  PID:1808
- - C:\programdata\mPCoN67gt4d.exe
    C:\programdata\mPCoN67gt4d.exe
    3⤵
    - Executes dropped EXE
    - Suspicious use of WriteProcessMemory
    - Suspicious use of SetThreadContext
    PID:1976
  - - C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\TslQbh" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3477.tmp"
      4⤵
      Creates scheduled task(s)
      PID:1772
  - - C:\programdata\mPCoN67gt4d.exe
      "{path}"
      4⤵
      Executes dropped EXE
      Suspicious use of SetWindowsHookEx
      Suspicious use of AdjustPrivilegeToken
      Suspicious behavior: EnumeratesProcesses
      PID:1792

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:292
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ren %tmp%\mm v&cScriPT %tmp%\v?..wsf C
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1036
- - C:\Windows\SysWOW64\cscript.exe
    cScriPT C:\Users\Admin\AppData\Local\Temp\v?..wsf C
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1504
  - - 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:1580
    - - C:\Windows\SysWOW64\cscript.exe
        
        cscript C:\Users\Admin\AppData\Local\Temp\xx.vbs
        5⤵
        Blacklisted process makes network request
        
        PID:1524

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

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Downloads

memory/1504-10-0x0000000002840000-0x0000000002844000-memory.dmp

Filesize
16KB

Download
memory/1524-16-0x0000000002670000-0x0000000002674000-memory.dmp

Filesize
16KB

Download
memory/1792-21-0x0000000000400000-0x000000000044A000-memory.dmp

Filesize
296KB

Download
memory/1792-24-0x0000000000400000-0x000000000044A000-memory.dmp

Filesize
296KB

Download
memory/1792-25-0x0000000000400000-0x000000000044A000-memory.dmp

Filesize
296KB

Download
memory/1808-14-0x00000000025B0000-0x00000000025B4000-memory.dmp

Filesize
16KB

Download