Analysis
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max time kernel
149s -
max time network
155s -
platform
windows10-2004_x64 -
resource
win10v2004-20221111-en -
resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-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 3 IoCs
Processes:
ifmedianov.exeifmedianov.exeifmedianov.exepid process 1904 ifmedianov.exe 3572 ifmedianov.exe 4380 ifmedianov.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
ifmedianov.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Control Panel\International\Geo\Nation ifmedianov.exe -
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 1904 set thread context of 4380 1904 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 23 IoCs
Processes:
powershell.exeifmedianov.exepid process 2496 powershell.exe 2496 powershell.exe 1904 ifmedianov.exe 1904 ifmedianov.exe 1904 ifmedianov.exe 1904 ifmedianov.exe 1904 ifmedianov.exe 1904 ifmedianov.exe 1904 ifmedianov.exe 1904 ifmedianov.exe 1904 ifmedianov.exe 1904 ifmedianov.exe 1904 ifmedianov.exe 1904 ifmedianov.exe 1904 ifmedianov.exe 1904 ifmedianov.exe 1904 ifmedianov.exe 1904 ifmedianov.exe 1904 ifmedianov.exe 1904 ifmedianov.exe 1904 ifmedianov.exe 1904 ifmedianov.exe 1904 ifmedianov.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
ifmedianov.exepowershell.exedescription pid process Token: SeDebugPrivilege 1904 ifmedianov.exe Token: SeDebugPrivilege 2496 powershell.exe -
Suspicious use of WriteProcessMemory 17 IoCs
Processes:
file.exeifmedianov.exedescription pid process target process PID 1676 wrote to memory of 1904 1676 file.exe ifmedianov.exe PID 1676 wrote to memory of 1904 1676 file.exe ifmedianov.exe PID 1676 wrote to memory of 1904 1676 file.exe ifmedianov.exe PID 1904 wrote to memory of 2496 1904 ifmedianov.exe powershell.exe PID 1904 wrote to memory of 2496 1904 ifmedianov.exe powershell.exe PID 1904 wrote to memory of 2496 1904 ifmedianov.exe powershell.exe PID 1904 wrote to memory of 3572 1904 ifmedianov.exe ifmedianov.exe PID 1904 wrote to memory of 3572 1904 ifmedianov.exe ifmedianov.exe PID 1904 wrote to memory of 3572 1904 ifmedianov.exe ifmedianov.exe PID 1904 wrote to memory of 4380 1904 ifmedianov.exe ifmedianov.exe PID 1904 wrote to memory of 4380 1904 ifmedianov.exe ifmedianov.exe PID 1904 wrote to memory of 4380 1904 ifmedianov.exe ifmedianov.exe PID 1904 wrote to memory of 4380 1904 ifmedianov.exe ifmedianov.exe PID 1904 wrote to memory of 4380 1904 ifmedianov.exe ifmedianov.exe PID 1904 wrote to memory of 4380 1904 ifmedianov.exe ifmedianov.exe PID 1904 wrote to memory of 4380 1904 ifmedianov.exe ifmedianov.exe PID 1904 wrote to memory of 4380 1904 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
- Checks computer location settings
- 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
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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
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\ifmedianov.exe.logFilesize
1KB
MD52e49a0dc2cc777cf418322c4466c896e
SHA1d1c48311da63a8124b58ca948b0d64409e927d2d
SHA256b6e3216891c905bc01dfa776fb8f50aadd5b51b997551eb32ad5e21a53574041
SHA512b03923994a5b5b0c8ea0905a19a820eda810ded3687e965ee280641eb6b9dd8bf36ce3984bb04712199fcaffc28cacbbadcc872e12b2bda7f491091aa656156a
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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
235.4MB
MD5f0d621207b3805f4101ee9eae0f02a1c
SHA1f9eb653326a93e608e42800cc874a897f5a95ffa
SHA256613f6ccc32fa32590acf90815597439cded663f951a87891d54d4078b7e37f18
SHA512b2910373c9fb6c36064bd4461eeb1ab557223c1dd572d8c712a4576074422c9e871e98941cfe100d40eae57e38c3e43a37ffd4a6a11021eabe9485d8ee3c57a1
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C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\ifmedianov.exeFilesize
232.7MB
MD504a4105ad93a2ea565e46da45793ac6a
SHA1913926a0c985c7777bbd0e751e9fe3ed2208a0b4
SHA25649e99ba25608615607d01de6651bc72d5daaf875150aa053b006e83383f4993e
SHA5123cc837718882849f8f0a568f37917cde7a78b3d443cc47c7c52bcbacd012fd3b919cfca7b89eb3f425ae4936c852870f01618ba1baa1edd9717df83fb9683282
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memory/1904-138-0x00000000057B0000-0x00000000057BA000-memory.dmpFilesize
40KB
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memory/1904-137-0x00000000055F0000-0x0000000005682000-memory.dmpFilesize
584KB
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memory/1904-139-0x0000000006C80000-0x0000000006CD0000-memory.dmpFilesize
320KB
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memory/1904-140-0x0000000006EF0000-0x0000000006FA2000-memory.dmpFilesize
712KB
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memory/1904-141-0x00000000072E0000-0x0000000007302000-memory.dmpFilesize
136KB
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memory/1904-136-0x0000000005C60000-0x0000000006204000-memory.dmpFilesize
5.6MB
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memory/1904-135-0x0000000000C30000-0x0000000000C54000-memory.dmpFilesize
144KB
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memory/1904-132-0x0000000000000000-mapping.dmp
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memory/2496-144-0x0000000005350000-0x0000000005978000-memory.dmpFilesize
6.2MB
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memory/2496-146-0x0000000005A60000-0x0000000005AC6000-memory.dmpFilesize
408KB
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memory/2496-147-0x00000000060C0000-0x00000000060DE000-memory.dmpFilesize
120KB
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memory/2496-148-0x0000000007700000-0x0000000007D7A000-memory.dmpFilesize
6.5MB
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memory/2496-149-0x00000000065C0000-0x00000000065DA000-memory.dmpFilesize
104KB
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memory/2496-145-0x00000000059F0000-0x0000000005A56000-memory.dmpFilesize
408KB
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memory/2496-143-0x0000000002AF0000-0x0000000002B26000-memory.dmpFilesize
216KB
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memory/2496-142-0x0000000000000000-mapping.dmp
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memory/3572-150-0x0000000000000000-mapping.dmp
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memory/4380-152-0x0000000000000000-mapping.dmp
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memory/4380-153-0x0000000000400000-0x0000000000432000-memory.dmpFilesize
200KB