Analysis
-
max time kernel
75s -
max time network
135s -
platform
windows10-2004_x64 -
resource
win10v2004-20220414-en -
submitted
17-05-2022 08:54
General
-
Target
SecuriteInfo.com.W32.AIDetectNet.01.18479.exe
-
Size
600KB
-
MD5
4ffb6091ba5ec0d9ca7bd79107ca6fae
-
SHA1
5eaf10eec6cbbace9fa89f191c8d95a477041067
-
SHA256
b990b5f072914cba8f10f88932ce5be9feff9760f7a1a20d562f885915ca9423
-
SHA512
7bf47313d95604c64d5a0424cc5b7cac79d8200bf7ffa6d604e07a98c88365d5bcee82fef4f13d04265c9652823479d9add0dbc4bb2d8a8803054800d3b184a9
Malware Config
Extracted
oski
unitech.co.vu
Signatures
-
Oski
Oski is an infostealer targeting browser data, crypto wallets.
-
suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt)
suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt)
-
suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt) M2
suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt) M2
-
suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (passwords.txt) M2
suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (passwords.txt) M2
-
suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer Data Exfil
suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer Data Exfil
-
suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer HTTP POST Pattern
suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer HTTP POST Pattern
-
Downloads MZ/PE file
-
Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
-
Loads dropped DLL 3 IoCs
-
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
-
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.
-
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
-
Kills process with taskkill 1 IoCs
-
Suspicious behavior: EnumeratesProcesses 5 IoCs
-
Suspicious use of AdjustPrivilegeToken 3 IoCs
-
Suspicious use of WriteProcessMemory 21 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.W32.AIDetectNet.01.18479.exe"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.W32.AIDetectNet.01.18479.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\FidlFl.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\FidlFl" /XML "C:\Users\Admin\AppData\Local\Temp\tmpB083.tmp"2⤵
- Creates scheduled task(s)
-
-
C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.W32.AIDetectNet.01.18479.exe"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.W32.AIDetectNet.01.18479.exe"2⤵
- Checks computer location settings
- 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 2192 & erase C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.W32.AIDetectNet.01.18479.exe & RD /S /Q C:\\ProgramData\\105640691835511\\* & exit3⤵
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\taskkill.exetaskkill /pid 21924⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
-
-
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
133KB
MD58f73c08a9660691143661bf7332c3c27
SHA137fa65dd737c50fda710fdbde89e51374d0c204a
SHA2563fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd
SHA5120042ecf9b3571bb5eba2de893e8b2371df18f7c5a589f52ee66e4bfbaa15a5b8b7cc6a155792aaa8988528c27196896d5e82e1751c998bacea0d92395f66ad89
-
Filesize
1.2MB
MD5bfac4e3c5908856ba17d41edcd455a51
SHA18eec7e888767aa9e4cca8ff246eb2aacb9170428
SHA256e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78
SHA5122565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66
-
Filesize
630KB
MD5e477a96c8f2b18d6b5c27bde49c990bf
SHA1e980c9bf41330d1e5bd04556db4646a0210f7409
SHA25616574f51785b0e2fc29c2c61477eb47bb39f714829999511dc8952b43ab17660
SHA512335a86268e7c0e568b1c30981ec644e6cd332e66f96d2551b58a82515316693c1859d87b4f4b7310cf1ac386cee671580fdd999c3bcb23acf2c2282c01c8798c
-
Filesize
1KB
MD56d53cfb9e8887480bd462d80a5ec093a
SHA1d1aba8136ccf362664e4594adcf6e59d26f9d7a6
SHA25620449cf1edc83e97acf2cc1f40d1fe1ee1a72170535a7949e7a60c567fb22ff5
SHA512c8de034aeb3a73acc526ce278f5756ef70ffda07d8da213599686601347e0dee5a6a23f12d6bc2842666addca76cb169da9cbe3263a957ed1f5dea273beafbbd
-
Filesize
408KB
-
Filesize
56KB
-
Filesize
32KB
-
Filesize
216KB
-
Filesize
104KB
-
Filesize
6.2MB
-
Filesize
304KB
-
Filesize
600KB
-
Filesize
40KB
-
Filesize
104KB
-
Filesize
136KB
-
Filesize
6.5MB
-
Filesize
120KB
-
Filesize
120KB
-
Filesize
200KB
-
Filesize
5.6MB
-
Filesize
408KB
-
Filesize
624KB
-
Filesize
600KB
-
Filesize
40KB
-
Filesize
584KB
-
Filesize
224KB
-
Filesize
224KB
-
Filesize
224KB
-
Filesize
224KB