Analysis
-
max time kernel
272s -
max time network
272s -
platform
windows10_x64 -
resource
win10v20210410 -
submitted
14-04-2021 10:51
Static task
static1
Behavioral task
behavioral1
Sample
Mfipdre.exe
Resource
win10v20210410
General
-
Target
Mfipdre.exe
-
Size
304KB
-
MD5
3061e2d44678262f26d3f68a419bea3a
-
SHA1
546ad4d518a1ed317dee8bc1331249a10debebcc
-
SHA256
db23d6f5e2123cde47f4e3178bf18063aa3270d13499991200c9074a837eff07
-
SHA512
b397ba5f1e08e247ab3c3ca27877d6e8add173eea292621a38e45ad67bd01083676bce9a4752a4389db23c2bccefcbee356a0a7806d9aa2b3ede1e26b9cbc731
Malware Config
Extracted
oski
novget.com
Signatures
-
Oski
Oski is an infostealer targeting browser data, crypto wallets.
-
Downloads MZ/PE file
-
Loads dropped DLL 3 IoCs
Processes:
Mfipdre.exepid process 1136 Mfipdre.exe 1136 Mfipdre.exe 1136 Mfipdre.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.
-
Suspicious use of SetThreadContext 1 IoCs
Processes:
Mfipdre.exedescription pid process target process PID 4056 set thread context of 1136 4056 Mfipdre.exe Mfipdre.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:
Mfipdre.exedescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString Mfipdre.exe -
Kills process with taskkill 1 IoCs
Processes:
taskkill.exepid process 2736 taskkill.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
Mfipdre.exepid process 4056 Mfipdre.exe 4056 Mfipdre.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
Mfipdre.exetaskkill.exedescription pid process Token: SeDebugPrivilege 4056 Mfipdre.exe Token: SeDebugPrivilege 2736 taskkill.exe -
Suspicious use of WriteProcessMemory 15 IoCs
Processes:
Mfipdre.exeMfipdre.execmd.exedescription pid process target process PID 4056 wrote to memory of 1136 4056 Mfipdre.exe Mfipdre.exe PID 4056 wrote to memory of 1136 4056 Mfipdre.exe Mfipdre.exe PID 4056 wrote to memory of 1136 4056 Mfipdre.exe Mfipdre.exe PID 4056 wrote to memory of 1136 4056 Mfipdre.exe Mfipdre.exe PID 4056 wrote to memory of 1136 4056 Mfipdre.exe Mfipdre.exe PID 4056 wrote to memory of 1136 4056 Mfipdre.exe Mfipdre.exe PID 4056 wrote to memory of 1136 4056 Mfipdre.exe Mfipdre.exe PID 4056 wrote to memory of 1136 4056 Mfipdre.exe Mfipdre.exe PID 4056 wrote to memory of 1136 4056 Mfipdre.exe Mfipdre.exe PID 1136 wrote to memory of 2448 1136 Mfipdre.exe cmd.exe PID 1136 wrote to memory of 2448 1136 Mfipdre.exe cmd.exe PID 1136 wrote to memory of 2448 1136 Mfipdre.exe cmd.exe PID 2448 wrote to memory of 2736 2448 cmd.exe taskkill.exe PID 2448 wrote to memory of 2736 2448 cmd.exe taskkill.exe PID 2448 wrote to memory of 2736 2448 cmd.exe taskkill.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\Mfipdre.exe"C:\Users\Admin\AppData\Local\Temp\Mfipdre.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\Mfipdre.exeC:\Users\Admin\AppData\Local\Temp\Mfipdre.exe2⤵
- Loads dropped DLL
- Checks processor information in registry
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c taskkill /pid 1136 & erase C:\Users\Admin\AppData\Local\Temp\Mfipdre.exe & RD /S /Q C:\\ProgramData\\906943929201722\\* & exit3⤵
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\taskkill.exetaskkill /pid 11364⤵
- 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\nss3.dllMD5
bfac4e3c5908856ba17d41edcd455a51
SHA18eec7e888767aa9e4cca8ff246eb2aacb9170428
SHA256e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78
SHA5122565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66
-
\ProgramData\sqlite3.dllMD5
e477a96c8f2b18d6b5c27bde49c990bf
SHA1e980c9bf41330d1e5bd04556db4646a0210f7409
SHA25616574f51785b0e2fc29c2c61477eb47bb39f714829999511dc8952b43ab17660
SHA512335a86268e7c0e568b1c30981ec644e6cd332e66f96d2551b58a82515316693c1859d87b4f4b7310cf1ac386cee671580fdd999c3bcb23acf2c2282c01c8798c
-
memory/1136-125-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB
-
memory/1136-127-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB
-
memory/1136-126-0x000000000040717B-mapping.dmp
-
memory/2448-131-0x0000000000000000-mapping.dmp
-
memory/2736-132-0x0000000000000000-mapping.dmp
-
memory/4056-120-0x00000000059F0000-0x00000000059F2000-memory.dmpFilesize
8KB
-
memory/4056-124-0x00000000071E0000-0x0000000007213000-memory.dmpFilesize
204KB
-
memory/4056-123-0x0000000007160000-0x0000000007161000-memory.dmpFilesize
4KB
-
memory/4056-121-0x0000000005733000-0x0000000005735000-memory.dmpFilesize
8KB
-
memory/4056-122-0x0000000008CD0000-0x0000000008CD1000-memory.dmpFilesize
4KB
-
memory/4056-119-0x0000000005730000-0x0000000005731000-memory.dmpFilesize
4KB
-
memory/4056-114-0x0000000000E40000-0x0000000000E41000-memory.dmpFilesize
4KB
-
memory/4056-118-0x00000000056D0000-0x00000000056D1000-memory.dmpFilesize
4KB
-
memory/4056-117-0x0000000005740000-0x0000000005741000-memory.dmpFilesize
4KB
-
memory/4056-116-0x0000000005C40000-0x0000000005C41000-memory.dmpFilesize
4KB