Analysis
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max time kernel
155s -
max time network
168s -
platform
windows7_x64 -
resource
win7-20221111-en -
resource tags
arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system -
submitted
13-01-2023 21:43
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20221111-en
Behavioral task
behavioral2
Sample
file.exe
Resource
win10v2004-20221111-en
General
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Target
file.exe
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Size
898KB
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MD5
efbdd6926c4cb453abc717966d17247b
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SHA1
4d5527e2b261b908905c857776cf625b12b3959c
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SHA256
d56f262888e77a5de910970fdc1fa46fef7fc527da135926e994affa293ebde6
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SHA512
d64ebc2141a1924c50589d349914471192a0be23ed436e98ea5a9c6c5c813e6b41b18979ebc6b0ca360042396fc31d656677d283b7b0a6a7bd6ff9e5f536f68b
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SSDEEP
6144:2ahOEYGnXi1o+ragfy6QRTsU3S7OZb9a:2icGXko+ragfAoUC7OZ8
Malware Config
Extracted
purecrypter
https://buffetdetalhes.com/wp-admin/images/css/marina/bo/Vqhpwhiml.dll
Extracted
redline
1
45.142.214.214:20301
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auth_value
9c39d577e04da4bd3bab7c12203f5f07
Signatures
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PureCrypter
PureCrypter is a .NET malware loader first seen in early 2021.
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RedLine
RedLine Stealer is a malware family written in C#, first appearing in early 2020.
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Executes dropped EXE 2 IoCs
Processes:
ifmedianov.exeifmedianov.exepid process 872 ifmedianov.exe 1676 ifmedianov.exe -
Loads dropped DLL 1 IoCs
Processes:
ifmedianov.exepid process 872 ifmedianov.exe -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Adds Run key to start application 2 TTPs 2 IoCs
Processes:
file.exedescription ioc process Key created \REGISTRY\MACHINE\Software\Microsoft\Windows\CurrentVersion\RunOnce file.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\wextract_cleanup0 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP000.TMP\\\"" file.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
ifmedianov.exedescription pid process target process PID 872 set thread context of 1676 872 ifmedianov.exe ifmedianov.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious behavior: EnumeratesProcesses 3 IoCs
Processes:
powershell.exeifmedianov.exeifmedianov.exepid process 1852 powershell.exe 872 ifmedianov.exe 1676 ifmedianov.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
ifmedianov.exepowershell.exeifmedianov.exedescription pid process Token: SeDebugPrivilege 872 ifmedianov.exe Token: SeDebugPrivilege 1852 powershell.exe Token: SeDebugPrivilege 1676 ifmedianov.exe -
Suspicious use of WriteProcessMemory 17 IoCs
Processes:
file.exeifmedianov.exedescription pid process target process PID 328 wrote to memory of 872 328 file.exe ifmedianov.exe PID 328 wrote to memory of 872 328 file.exe ifmedianov.exe PID 328 wrote to memory of 872 328 file.exe ifmedianov.exe PID 328 wrote to memory of 872 328 file.exe ifmedianov.exe PID 872 wrote to memory of 1852 872 ifmedianov.exe powershell.exe PID 872 wrote to memory of 1852 872 ifmedianov.exe powershell.exe PID 872 wrote to memory of 1852 872 ifmedianov.exe powershell.exe PID 872 wrote to memory of 1852 872 ifmedianov.exe powershell.exe PID 872 wrote to memory of 1676 872 ifmedianov.exe ifmedianov.exe PID 872 wrote to memory of 1676 872 ifmedianov.exe ifmedianov.exe PID 872 wrote to memory of 1676 872 ifmedianov.exe ifmedianov.exe PID 872 wrote to memory of 1676 872 ifmedianov.exe ifmedianov.exe PID 872 wrote to memory of 1676 872 ifmedianov.exe ifmedianov.exe PID 872 wrote to memory of 1676 872 ifmedianov.exe ifmedianov.exe PID 872 wrote to memory of 1676 872 ifmedianov.exe ifmedianov.exe PID 872 wrote to memory of 1676 872 ifmedianov.exe ifmedianov.exe PID 872 wrote to memory of 1676 872 ifmedianov.exe ifmedianov.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\file.exe"C:\Users\Admin\AppData\Local\Temp\file.exe"1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\ifmedianov.exeC:\Users\Admin\AppData\Local\Temp\IXP000.TMP\ifmedianov.exe2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ENC cwB0AGEAcgB0AC0AcwBsAGUAZQBwACAALQBzAGUAYwBvAG4AZABzACAAMwA1AA==3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\ifmedianov.exeC:\Users\Admin\AppData\Local\Temp\IXP000.TMP\ifmedianov.exe3⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\ifmedianov.exeFilesize
362.5MB
MD5b0c7de14111c40f664432150255e9f86
SHA1c54bdb6dc8821d820aad092dfd591fd9ec8ecf49
SHA25609a3c1c2d0563b828eee982d12fd5d63bc1307baf0fb0f86bf7806708b656115
SHA512fc32992df5ae257fcf56572bba9170e85b8aa2783990435228515edde5d1a695109f70df6e8de4807f4b7a48c8cb48b4a6884e5523fe70d93ddda9c09c1dabaf
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C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\ifmedianov.exeFilesize
362.5MB
MD5b0c7de14111c40f664432150255e9f86
SHA1c54bdb6dc8821d820aad092dfd591fd9ec8ecf49
SHA25609a3c1c2d0563b828eee982d12fd5d63bc1307baf0fb0f86bf7806708b656115
SHA512fc32992df5ae257fcf56572bba9170e85b8aa2783990435228515edde5d1a695109f70df6e8de4807f4b7a48c8cb48b4a6884e5523fe70d93ddda9c09c1dabaf
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C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\ifmedianov.exeFilesize
362.5MB
MD5b0c7de14111c40f664432150255e9f86
SHA1c54bdb6dc8821d820aad092dfd591fd9ec8ecf49
SHA25609a3c1c2d0563b828eee982d12fd5d63bc1307baf0fb0f86bf7806708b656115
SHA512fc32992df5ae257fcf56572bba9170e85b8aa2783990435228515edde5d1a695109f70df6e8de4807f4b7a48c8cb48b4a6884e5523fe70d93ddda9c09c1dabaf
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\Users\Admin\AppData\Local\Temp\IXP000.TMP\ifmedianov.exeFilesize
362.5MB
MD5b0c7de14111c40f664432150255e9f86
SHA1c54bdb6dc8821d820aad092dfd591fd9ec8ecf49
SHA25609a3c1c2d0563b828eee982d12fd5d63bc1307baf0fb0f86bf7806708b656115
SHA512fc32992df5ae257fcf56572bba9170e85b8aa2783990435228515edde5d1a695109f70df6e8de4807f4b7a48c8cb48b4a6884e5523fe70d93ddda9c09c1dabaf
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memory/872-54-0x0000000000000000-mapping.dmp
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memory/872-57-0x0000000000250000-0x0000000000274000-memory.dmpFilesize
144KB
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memory/872-58-0x0000000074ED1000-0x0000000074ED3000-memory.dmpFilesize
8KB
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memory/872-59-0x0000000005B40000-0x0000000005C14000-memory.dmpFilesize
848KB
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memory/872-60-0x0000000004D30000-0x0000000004D7A000-memory.dmpFilesize
296KB
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memory/872-61-0x0000000005090000-0x0000000005122000-memory.dmpFilesize
584KB
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memory/1676-73-0x0000000000400000-0x0000000000432000-memory.dmpFilesize
200KB
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memory/1676-68-0x0000000000400000-0x0000000000432000-memory.dmpFilesize
200KB
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memory/1676-71-0x0000000000400000-0x0000000000432000-memory.dmpFilesize
200KB
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memory/1676-69-0x0000000000400000-0x0000000000432000-memory.dmpFilesize
200KB
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memory/1676-75-0x000000000041B5CA-mapping.dmp
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memory/1676-74-0x0000000000400000-0x0000000000432000-memory.dmpFilesize
200KB
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memory/1676-78-0x0000000000400000-0x0000000000432000-memory.dmpFilesize
200KB
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memory/1676-80-0x0000000000400000-0x0000000000432000-memory.dmpFilesize
200KB
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memory/1852-66-0x000000006DA20000-0x000000006DFCB000-memory.dmpFilesize
5.7MB
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memory/1852-65-0x000000006DA20000-0x000000006DFCB000-memory.dmpFilesize
5.7MB
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memory/1852-64-0x000000006DA20000-0x000000006DFCB000-memory.dmpFilesize
5.7MB
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memory/1852-62-0x0000000000000000-mapping.dmp