Analysis
-
max time kernel
40s -
max time network
55s -
platform
windows7_x64 -
resource
win7v200430 -
submitted
11-07-2020 11:45
Static task
static1
Behavioral task
behavioral1
Sample
SecuriteInfo.com.Win32.Packed.Themida.HKO.8521.exe
Resource
win7v200430
General
-
Target
SecuriteInfo.com.Win32.Packed.Themida.HKO.8521.exe
-
Size
5.3MB
-
MD5
b24dc2820886e748d1619d824c898bc2
-
SHA1
867e772a9e9bd75196f5f94e5802f9ee6e370c5c
-
SHA256
32c17a6caeed78f79e06de58d5229927f77bc8c6b4865b41289d4da886a07df4
-
SHA512
32bfaaa84c8cb15b988107d56b0a8645ba394da47e027026219afd8c8f7772b2697dc9e222229f860572deb871fbd22f6dbaeb528dd28f1219fd3a5ee2b674a2
Malware Config
Signatures
-
Oski
Oski is an infostealer targeting browser data, crypto wallets.
-
Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs
-
Downloads MZ/PE file
-
Checks BIOS information in registry 2 TTPs 2 IoCs
BIOS information is often read in order to detect sandboxing environments.
Processes:
SecuriteInfo.com.Win32.Packed.Themida.HKO.8521.exedescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion SecuriteInfo.com.Win32.Packed.Themida.HKO.8521.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion SecuriteInfo.com.Win32.Packed.Themida.HKO.8521.exe -
Loads dropped DLL 5 IoCs
Processes:
SecuriteInfo.com.Win32.Packed.Themida.HKO.8521.exepid process 1068 SecuriteInfo.com.Win32.Packed.Themida.HKO.8521.exe 1068 SecuriteInfo.com.Win32.Packed.Themida.HKO.8521.exe 1068 SecuriteInfo.com.Win32.Packed.Themida.HKO.8521.exe 1068 SecuriteInfo.com.Win32.Packed.Themida.HKO.8521.exe 1068 SecuriteInfo.com.Win32.Packed.Themida.HKO.8521.exe -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
-
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
-
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
-
Processes:
SecuriteInfo.com.Win32.Packed.Themida.HKO.8521.exedescription ioc process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA SecuriteInfo.com.Win32.Packed.Themida.HKO.8521.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
Processes:
SecuriteInfo.com.Win32.Packed.Themida.HKO.8521.exepid process 1068 SecuriteInfo.com.Win32.Packed.Themida.HKO.8521.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
-
Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
SecuriteInfo.com.Win32.Packed.Themida.HKO.8521.exedescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString SecuriteInfo.com.Win32.Packed.Themida.HKO.8521.exe -
Kills process with taskkill 1 IoCs
Processes:
taskkill.exepid process 1708 taskkill.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
taskkill.exedescription pid process Token: SeDebugPrivilege 1708 taskkill.exe -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
SecuriteInfo.com.Win32.Packed.Themida.HKO.8521.execmd.exedescription pid process target process PID 1068 wrote to memory of 1056 1068 SecuriteInfo.com.Win32.Packed.Themida.HKO.8521.exe cmd.exe PID 1068 wrote to memory of 1056 1068 SecuriteInfo.com.Win32.Packed.Themida.HKO.8521.exe cmd.exe PID 1068 wrote to memory of 1056 1068 SecuriteInfo.com.Win32.Packed.Themida.HKO.8521.exe cmd.exe PID 1068 wrote to memory of 1056 1068 SecuriteInfo.com.Win32.Packed.Themida.HKO.8521.exe cmd.exe PID 1056 wrote to memory of 1708 1056 cmd.exe taskkill.exe PID 1056 wrote to memory of 1708 1056 cmd.exe taskkill.exe PID 1056 wrote to memory of 1708 1056 cmd.exe taskkill.exe PID 1056 wrote to memory of 1708 1056 cmd.exe taskkill.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.Packed.Themida.HKO.8521.exe"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.Packed.Themida.HKO.8521.exe"1⤵
- Checks BIOS information in registry
- Loads dropped DLL
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Checks processor information in registry
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c taskkill /pid 1068 & erase C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.Packed.Themida.HKO.8521' & RD /S /Q C:\\ProgramData\\443522284902743\\* & exit2⤵
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\taskkill.exetaskkill /pid 10683⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
-
\ProgramData\mozglue.dllMD5
8f73c08a9660691143661bf7332c3c27
SHA137fa65dd737c50fda710fdbde89e51374d0c204a
SHA2563fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd
SHA5120042ecf9b3571bb5eba2de893e8b2371df18f7c5a589f52ee66e4bfbaa15a5b8b7cc6a155792aaa8988528c27196896d5e82e1751c998bacea0d92395f66ad89
-
\ProgramData\msvcp140.dllMD5
109f0f02fd37c84bfc7508d4227d7ed5
SHA1ef7420141bb15ac334d3964082361a460bfdb975
SHA256334e69ac9367f708ce601a6f490ff227d6c20636da5222f148b25831d22e13d4
SHA51246eb62b65817365c249b48863d894b4669e20fcb3992e747cd5c9fdd57968e1b2cf7418d1c9340a89865eadda362b8db51947eb4427412eb83b35994f932fd39
-
\ProgramData\nss3.dllMD5
bfac4e3c5908856ba17d41edcd455a51
SHA18eec7e888767aa9e4cca8ff246eb2aacb9170428
SHA256e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78
SHA5122565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66
-
\ProgramData\sqlite3.dllMD5
e477a96c8f2b18d6b5c27bde49c990bf
SHA1e980c9bf41330d1e5bd04556db4646a0210f7409
SHA25616574f51785b0e2fc29c2c61477eb47bb39f714829999511dc8952b43ab17660
SHA512335a86268e7c0e568b1c30981ec644e6cd332e66f96d2551b58a82515316693c1859d87b4f4b7310cf1ac386cee671580fdd999c3bcb23acf2c2282c01c8798c
-
\ProgramData\vcruntime140.dllMD5
7587bf9cb4147022cd5681b015183046
SHA1f2106306a8f6f0da5afb7fc765cfa0757ad5a628
SHA256c40bb03199a2054dabfc7a8e01d6098e91de7193619effbd0f142a7bf031c14d
SHA5120b63e4979846ceba1b1ed8470432ea6aa18cca66b5f5322d17b14bc0dfa4b2ee09ca300a016e16a01db5123e4e022820698f46d9bad1078bd24675b4b181e91f
-
memory/1056-5-0x0000000000000000-mapping.dmp
-
memory/1708-6-0x0000000000000000-mapping.dmp