Analysis
-
max time kernel
117s -
max time network
157s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
04-07-2024 22:39
Static task
static1
Behavioral task
behavioral1
Sample
83b2f6c63dc3ec6cea64755ce2042ff747d52571daaef8a47934e00378f0afd3.exe
Resource
win7-20240221-en
General
-
Target
83b2f6c63dc3ec6cea64755ce2042ff747d52571daaef8a47934e00378f0afd3.exe
-
Size
5.5MB
-
MD5
1ed6f9d578e14edad0bf47edf1f6269f
-
SHA1
0e6546d7a7f237a4c094e24810fd4ab29ab6a970
-
SHA256
83b2f6c63dc3ec6cea64755ce2042ff747d52571daaef8a47934e00378f0afd3
-
SHA512
7481e391bc9fd0b0a30ca7464847e6ab0bbaa4febb8bfb33407742fd2e90f7fb0d88fd2ab0dc49fa499864e16a234d6f910926944c2a3ce337d614351dccfd60
-
SSDEEP
98304:zeL9fRCBL/JS6w1PMcf5blPwJp003KOIupEAjlgJHc6:zeL9ROL/Eh/PQbaObEACl
Malware Config
Extracted
vidar
https://t.me/bu77un
https://steamcommunity.com/profiles/76561199730044335
-
user_agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:128.1) Gecko/20100101 Firefox/128.1
Signatures
-
Detect Vidar Stealer 2 IoCs
Processes:
resource yara_rule behavioral1/memory/2824-77-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral1/memory/2824-598-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
-
Executes dropped EXE 1 IoCs
Processes:
KEBGHCBAEG.exepid process 2676 KEBGHCBAEG.exe -
Loads dropped DLL 6 IoCs
Processes:
MSBuild.exeWerFault.exepid process 2824 MSBuild.exe 2824 MSBuild.exe 2824 MSBuild.exe 1540 WerFault.exe 1540 WerFault.exe 1540 WerFault.exe -
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
-
Suspicious use of SetThreadContext 1 IoCs
Processes:
83b2f6c63dc3ec6cea64755ce2042ff747d52571daaef8a47934e00378f0afd3.exedescription pid process target process PID 1176 set thread context of 2824 1176 83b2f6c63dc3ec6cea64755ce2042ff747d52571daaef8a47934e00378f0afd3.exe MSBuild.exe -
Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 1540 2676 WerFault.exe KEBGHCBAEG.exe -
Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
MSBuild.exedescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 MSBuild.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString MSBuild.exe -
Delays execution with timeout.exe 1 IoCs
Processes:
timeout.exepid process 2160 timeout.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
MSBuild.exepid process 2824 MSBuild.exe 2824 MSBuild.exe 2824 MSBuild.exe 2824 MSBuild.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
83b2f6c63dc3ec6cea64755ce2042ff747d52571daaef8a47934e00378f0afd3.exedescription pid process Token: SeDebugPrivilege 1176 83b2f6c63dc3ec6cea64755ce2042ff747d52571daaef8a47934e00378f0afd3.exe -
Suspicious use of WriteProcessMemory 26 IoCs
Processes:
83b2f6c63dc3ec6cea64755ce2042ff747d52571daaef8a47934e00378f0afd3.exeMSBuild.exeKEBGHCBAEG.execmd.exedescription pid process target process PID 1176 wrote to memory of 2824 1176 83b2f6c63dc3ec6cea64755ce2042ff747d52571daaef8a47934e00378f0afd3.exe MSBuild.exe PID 1176 wrote to memory of 2824 1176 83b2f6c63dc3ec6cea64755ce2042ff747d52571daaef8a47934e00378f0afd3.exe MSBuild.exe PID 1176 wrote to memory of 2824 1176 83b2f6c63dc3ec6cea64755ce2042ff747d52571daaef8a47934e00378f0afd3.exe MSBuild.exe PID 1176 wrote to memory of 2824 1176 83b2f6c63dc3ec6cea64755ce2042ff747d52571daaef8a47934e00378f0afd3.exe MSBuild.exe PID 1176 wrote to memory of 2824 1176 83b2f6c63dc3ec6cea64755ce2042ff747d52571daaef8a47934e00378f0afd3.exe MSBuild.exe PID 1176 wrote to memory of 2824 1176 83b2f6c63dc3ec6cea64755ce2042ff747d52571daaef8a47934e00378f0afd3.exe MSBuild.exe PID 1176 wrote to memory of 2824 1176 83b2f6c63dc3ec6cea64755ce2042ff747d52571daaef8a47934e00378f0afd3.exe MSBuild.exe PID 1176 wrote to memory of 2824 1176 83b2f6c63dc3ec6cea64755ce2042ff747d52571daaef8a47934e00378f0afd3.exe MSBuild.exe PID 1176 wrote to memory of 2824 1176 83b2f6c63dc3ec6cea64755ce2042ff747d52571daaef8a47934e00378f0afd3.exe MSBuild.exe PID 1176 wrote to memory of 2824 1176 83b2f6c63dc3ec6cea64755ce2042ff747d52571daaef8a47934e00378f0afd3.exe MSBuild.exe PID 2824 wrote to memory of 2676 2824 MSBuild.exe KEBGHCBAEG.exe PID 2824 wrote to memory of 2676 2824 MSBuild.exe KEBGHCBAEG.exe PID 2824 wrote to memory of 2676 2824 MSBuild.exe KEBGHCBAEG.exe PID 2824 wrote to memory of 2676 2824 MSBuild.exe KEBGHCBAEG.exe PID 2676 wrote to memory of 1540 2676 KEBGHCBAEG.exe WerFault.exe PID 2676 wrote to memory of 1540 2676 KEBGHCBAEG.exe WerFault.exe PID 2676 wrote to memory of 1540 2676 KEBGHCBAEG.exe WerFault.exe PID 2676 wrote to memory of 1540 2676 KEBGHCBAEG.exe WerFault.exe PID 2824 wrote to memory of 1684 2824 MSBuild.exe cmd.exe PID 2824 wrote to memory of 1684 2824 MSBuild.exe cmd.exe PID 2824 wrote to memory of 1684 2824 MSBuild.exe cmd.exe PID 2824 wrote to memory of 1684 2824 MSBuild.exe cmd.exe PID 1684 wrote to memory of 2160 1684 cmd.exe timeout.exe PID 1684 wrote to memory of 2160 1684 cmd.exe timeout.exe PID 1684 wrote to memory of 2160 1684 cmd.exe timeout.exe PID 1684 wrote to memory of 2160 1684 cmd.exe timeout.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\83b2f6c63dc3ec6cea64755ce2042ff747d52571daaef8a47934e00378f0afd3.exe"C:\Users\Admin\AppData\Local\Temp\83b2f6c63dc3ec6cea64755ce2042ff747d52571daaef8a47934e00378f0afd3.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1176 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"2⤵
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2824 -
C:\ProgramData\KEBGHCBAEG.exe"C:\ProgramData\KEBGHCBAEG.exe"3⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:2676 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2676 -s 964⤵
- Loads dropped DLL
- Program crash
PID:1540 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\JEBKJDAFHJDG" & exit3⤵
- Suspicious use of WriteProcessMemory
PID:1684 -
C:\Windows\SysWOW64\timeout.exetimeout /t 104⤵
- Delays execution with timeout.exe
PID:2160
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
70KB
MD549aebf8cbd62d92ac215b2923fb1b9f5
SHA11723be06719828dda65ad804298d0431f6aff976
SHA256b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f
SHA512bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b
-
Filesize
181KB
MD54ea6026cf93ec6338144661bf1202cd1
SHA1a1dec9044f750ad887935a01430bf49322fbdcb7
SHA2568efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8
SHA5126c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b
-
Filesize
937KB
MD5168c5908924803d268d26965c32a5620
SHA19e0e2dc9c7e931c4ee860c32d83711c433f7b1a3
SHA2562fd72d0d0fbc053a53adee5d9ec6cffde3fb5a3c6ba0c0490e24552b264d5449
SHA512749f0e4da8d6fde35b53e769b0b594c2e63835f970eedc54c8c15889863811b5fb296650ae9f5e255bafdd4b942ad3434a60c48e05f1283820c378d30645f1c1