Analysis
-
max time kernel
91s -
max time network
153s -
platform
windows10-2004_x64 -
resource
win10v2004-20221111-en -
resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system -
submitted
05-02-2023 13:33
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20221111-en
Behavioral task
behavioral2
Sample
file.exe
Resource
win10v2004-20221111-en
General
-
Target
file.exe
-
Size
4.7MB
-
MD5
26492126b5790d0c2a2cb43b427b9ef1
-
SHA1
34c916130a22cfb916ff2aca642014160bb1e17a
-
SHA256
a6c743d5647c5cf3ed9a8ab7adc58660b4e87faf386d1a954c672cf73a82f615
-
SHA512
9596d59dcd2b59ddfd3d3a090bc97ea0baa5cb82508aaa462a4cf719bace65c290ce7ec420b4dda498a72366d457ded52c8dd5e1dd3b3700b6be70353cfb22dd
-
SSDEEP
98304:tHrhmizRHXVbI95+BEKCepBtEvZcAiPj6eGs:eizRl03+tBtERcAG6i
Malware Config
Signatures
-
PrivateLoader
PrivateLoader is a downloader sold as a pay-per-install malware distribution service.
-
Loads dropped DLL 10 IoCs
Processes:
vbc.exepid process 4368 vbc.exe 4368 vbc.exe 4368 vbc.exe 4368 vbc.exe 4368 vbc.exe 4368 vbc.exe 4368 vbc.exe 4368 vbc.exe 4368 vbc.exe 4368 vbc.exe -
Uses the VBS compiler for execution 1 TTPs
-
Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 10 ipinfo.io 11 ipinfo.io -
Suspicious use of SetThreadContext 1 IoCs
Processes:
file.exedescription pid process target process PID 2280 set thread context of 4368 2280 file.exe vbc.exe -
Program crash 2 IoCs
Processes:
WerFault.exeWerFault.exepid pid_target process target process 3520 2280 WerFault.exe file.exe 4512 4368 WerFault.exe vbc.exe -
Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
vbc.exedescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 vbc.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString vbc.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
vbc.exepid process 4368 vbc.exe 4368 vbc.exe -
Suspicious use of WriteProcessMemory 5 IoCs
Processes:
file.exedescription pid process target process PID 2280 wrote to memory of 4368 2280 file.exe vbc.exe PID 2280 wrote to memory of 4368 2280 file.exe vbc.exe PID 2280 wrote to memory of 4368 2280 file.exe vbc.exe PID 2280 wrote to memory of 4368 2280 file.exe vbc.exe PID 2280 wrote to memory of 4368 2280 file.exe vbc.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\file.exe"C:\Users\Admin\AppData\Local\Temp\file.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"2⤵
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4368 -s 13723⤵
- Program crash
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2280 -s 1362⤵
- Program crash
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 208 -p 2280 -ip 22801⤵
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 4368 -ip 43681⤵
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
-
C:\Users\Admin\AppData\Local\Temp\LocalSimbaa3Bwvz1tr0f\freebl3.dllFilesize
326KB
MD5ef2834ac4ee7d6724f255beaf527e635
SHA15be8c1e73a21b49f353c2ecfa4108e43a883cb7b
SHA256a770ecba3b08bbabd0a567fc978e50615f8b346709f8eb3cfacf3faab24090ba
SHA512c6ea0e4347cbd7ef5e80ae8c0afdca20ea23ac2bdd963361dfaf562a9aed58dcbc43f89dd826692a064d76c3f4b3e92361af7b79a6d16a75d9951591ae3544d2
-
C:\Users\Admin\AppData\Local\Temp\LocalSimbaa3Bwvz1tr0f\freebl3.dllFilesize
326KB
MD5ef2834ac4ee7d6724f255beaf527e635
SHA15be8c1e73a21b49f353c2ecfa4108e43a883cb7b
SHA256a770ecba3b08bbabd0a567fc978e50615f8b346709f8eb3cfacf3faab24090ba
SHA512c6ea0e4347cbd7ef5e80ae8c0afdca20ea23ac2bdd963361dfaf562a9aed58dcbc43f89dd826692a064d76c3f4b3e92361af7b79a6d16a75d9951591ae3544d2
-
C:\Users\Admin\AppData\Local\Temp\LocalSimbaa3Bwvz1tr0f\freebl3.dllFilesize
326KB
MD5ef2834ac4ee7d6724f255beaf527e635
SHA15be8c1e73a21b49f353c2ecfa4108e43a883cb7b
SHA256a770ecba3b08bbabd0a567fc978e50615f8b346709f8eb3cfacf3faab24090ba
SHA512c6ea0e4347cbd7ef5e80ae8c0afdca20ea23ac2bdd963361dfaf562a9aed58dcbc43f89dd826692a064d76c3f4b3e92361af7b79a6d16a75d9951591ae3544d2
-
C:\Users\Admin\AppData\Local\Temp\LocalSimbaa3Bwvz1tr0f\freebl3.dllFilesize
326KB
MD5ef2834ac4ee7d6724f255beaf527e635
SHA15be8c1e73a21b49f353c2ecfa4108e43a883cb7b
SHA256a770ecba3b08bbabd0a567fc978e50615f8b346709f8eb3cfacf3faab24090ba
SHA512c6ea0e4347cbd7ef5e80ae8c0afdca20ea23ac2bdd963361dfaf562a9aed58dcbc43f89dd826692a064d76c3f4b3e92361af7b79a6d16a75d9951591ae3544d2
-
C:\Users\Admin\AppData\Local\Temp\LocalSimbaa3Bwvz1tr0f\freebl3.dllFilesize
326KB
MD5ef2834ac4ee7d6724f255beaf527e635
SHA15be8c1e73a21b49f353c2ecfa4108e43a883cb7b
SHA256a770ecba3b08bbabd0a567fc978e50615f8b346709f8eb3cfacf3faab24090ba
SHA512c6ea0e4347cbd7ef5e80ae8c0afdca20ea23ac2bdd963361dfaf562a9aed58dcbc43f89dd826692a064d76c3f4b3e92361af7b79a6d16a75d9951591ae3544d2
-
C:\Users\Admin\AppData\Local\Temp\LocalSimbaa3Bwvz1tr0f\freebl3.dllFilesize
326KB
MD5ef2834ac4ee7d6724f255beaf527e635
SHA15be8c1e73a21b49f353c2ecfa4108e43a883cb7b
SHA256a770ecba3b08bbabd0a567fc978e50615f8b346709f8eb3cfacf3faab24090ba
SHA512c6ea0e4347cbd7ef5e80ae8c0afdca20ea23ac2bdd963361dfaf562a9aed58dcbc43f89dd826692a064d76c3f4b3e92361af7b79a6d16a75d9951591ae3544d2
-
C:\Users\Admin\AppData\Local\Temp\LocalSimbaa3Bwvz1tr0f\mozglue.dllFilesize
133KB
MD58f73c08a9660691143661bf7332c3c27
SHA137fa65dd737c50fda710fdbde89e51374d0c204a
SHA2563fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd
SHA5120042ecf9b3571bb5eba2de893e8b2371df18f7c5a589f52ee66e4bfbaa15a5b8b7cc6a155792aaa8988528c27196896d5e82e1751c998bacea0d92395f66ad89
-
C:\Users\Admin\AppData\Local\Temp\LocalSimbaa3Bwvz1tr0f\nss3.dllFilesize
1.2MB
MD5bfac4e3c5908856ba17d41edcd455a51
SHA18eec7e888767aa9e4cca8ff246eb2aacb9170428
SHA256e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78
SHA5122565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66
-
C:\Users\Admin\AppData\Local\Temp\LocalSimbaa3Bwvz1tr0f\softokn3.dllFilesize
141KB
MD5a2ee53de9167bf0d6c019303b7ca84e5
SHA12a3c737fa1157e8483815e98b666408a18c0db42
SHA25643536adef2ddcc811c28d35fa6ce3031029a2424ad393989db36169ff2995083
SHA51245b56432244f86321fa88fbcca6a0d2a2f7f4e0648c1d7d7b1866adc9daa5eddd9f6bb73662149f279c9ab60930dad1113c8337cb5e6ec9eed5048322f65f7d8
-
C:\Users\Admin\AppData\Local\Temp\LocalSimbaa3Bwvz1tr0f\softokn3.dllFilesize
141KB
MD5a2ee53de9167bf0d6c019303b7ca84e5
SHA12a3c737fa1157e8483815e98b666408a18c0db42
SHA25643536adef2ddcc811c28d35fa6ce3031029a2424ad393989db36169ff2995083
SHA51245b56432244f86321fa88fbcca6a0d2a2f7f4e0648c1d7d7b1866adc9daa5eddd9f6bb73662149f279c9ab60930dad1113c8337cb5e6ec9eed5048322f65f7d8
-
memory/4368-132-0x0000000000000000-mapping.dmp
-
memory/4368-140-0x0000000000C00000-0x0000000000F7D000-memory.dmpFilesize
3.5MB
-
memory/4368-133-0x0000000000C00000-0x0000000000F7D000-memory.dmpFilesize
3.5MB