Windows 7 deprecation
Windows 7 will be removed from tria.ge on 2025-03-31
Analysis
-
max time kernel
62s -
max time network
79s -
platform
windows7_x64 -
resource
win7-20221111-en -
resource tags
arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system -
submitted
03/02/2023, 18:46
Static task
static1
Behavioral task
behavioral1
Sample
Loader.exe
Resource
win7-20221111-en
Behavioral task
behavioral2
Sample
Loader.exe
Resource
win10v2004-20220901-en
General
-
Target
Loader.exe
-
Size
1.6MB
-
MD5
a44e526804469076d712e8a05ddd7759
-
SHA1
7010fda540e70139020a7a79730e74e99bd8e6c9
-
SHA256
46d7128963bde013c8ec359b285e47eabbf9c88e332735e02ced518773e8e95f
-
SHA512
04c40ef00c80d641c4f7bced8aefc180d695ea23ef79e272167f1a567484be2ab7031ca55a246cbeba1ed0c0ed93223fc2a33daed7f2048c62f169f0e6325b36
-
SSDEEP
49152:fBvdZG5o8InNXL9Qn0HpZjI64n2hcyfT2:pFZG5oNnRfh9
Malware Config
Signatures
-
Detect PureCrypter injector 1 IoCs
resource yara_rule behavioral1/memory/1940-55-0x000000001BFF0000-0x000000001C2C8000-memory.dmp family_purecrypter -
Modifies WinLogon for persistence 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,\"C:\\Users\\Admin\\AppData\\Roaming\\Google\\Chrome.exe\"," Loader.exe -
PureCrypter
PureCrypter is a .NET malware loader first seen in early 2021.
-
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
-
Suspicious behavior: EnumeratesProcesses 21 IoCs
pid Process 900 powershell.exe 1940 Loader.exe 1940 Loader.exe 1940 Loader.exe 1940 Loader.exe 1940 Loader.exe 1940 Loader.exe 1940 Loader.exe 1940 Loader.exe 1940 Loader.exe 1940 Loader.exe 1940 Loader.exe 1940 Loader.exe 1940 Loader.exe 1940 Loader.exe 1940 Loader.exe 1940 Loader.exe 1940 Loader.exe 1940 Loader.exe 1940 Loader.exe 1940 Loader.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 900 powershell.exe Token: SeDebugPrivilege 1940 Loader.exe -
Suspicious use of WriteProcessMemory 33 IoCs
description pid Process procid_target PID 1940 wrote to memory of 900 1940 Loader.exe 28 PID 1940 wrote to memory of 900 1940 Loader.exe 28 PID 1940 wrote to memory of 900 1940 Loader.exe 28 PID 1940 wrote to memory of 1992 1940 Loader.exe 30 PID 1940 wrote to memory of 1992 1940 Loader.exe 30 PID 1940 wrote to memory of 1992 1940 Loader.exe 30 PID 1940 wrote to memory of 872 1940 Loader.exe 31 PID 1940 wrote to memory of 872 1940 Loader.exe 31 PID 1940 wrote to memory of 872 1940 Loader.exe 31 PID 1940 wrote to memory of 696 1940 Loader.exe 32 PID 1940 wrote to memory of 696 1940 Loader.exe 32 PID 1940 wrote to memory of 696 1940 Loader.exe 32 PID 1940 wrote to memory of 1584 1940 Loader.exe 33 PID 1940 wrote to memory of 1584 1940 Loader.exe 33 PID 1940 wrote to memory of 1584 1940 Loader.exe 33 PID 1940 wrote to memory of 300 1940 Loader.exe 34 PID 1940 wrote to memory of 300 1940 Loader.exe 34 PID 1940 wrote to memory of 300 1940 Loader.exe 34 PID 1940 wrote to memory of 1288 1940 Loader.exe 35 PID 1940 wrote to memory of 1288 1940 Loader.exe 35 PID 1940 wrote to memory of 1288 1940 Loader.exe 35 PID 1940 wrote to memory of 1580 1940 Loader.exe 36 PID 1940 wrote to memory of 1580 1940 Loader.exe 36 PID 1940 wrote to memory of 1580 1940 Loader.exe 36 PID 1940 wrote to memory of 1332 1940 Loader.exe 37 PID 1940 wrote to memory of 1332 1940 Loader.exe 37 PID 1940 wrote to memory of 1332 1940 Loader.exe 37 PID 1940 wrote to memory of 760 1940 Loader.exe 38 PID 1940 wrote to memory of 760 1940 Loader.exe 38 PID 1940 wrote to memory of 760 1940 Loader.exe 38 PID 1940 wrote to memory of 1148 1940 Loader.exe 39 PID 1940 wrote to memory of 1148 1940 Loader.exe 39 PID 1940 wrote to memory of 1148 1940 Loader.exe 39
Processes
-
C:\Users\Admin\AppData\Local\Temp\Loader.exe"C:\Users\Admin\AppData\Local\Temp\Loader.exe"1⤵
- Modifies WinLogon for persistence
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1940 -
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ENC cwB0AGEAcgB0AC0AcwBsAGUAZQBwACAALQBzAGUAYwBvAG4AZABzACAAMwAyAA==2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:900
-
-
C:\Windows\Microsoft.NET\Framework64\v4.0.30319\MSBuild.exeC:\Windows\Microsoft.NET\Framework64\v4.0.30319\MSBuild.exe2⤵PID:1992
-
-
C:\Windows\Microsoft.NET\Framework64\v4.0.30319\MSBuild.exeC:\Windows\Microsoft.NET\Framework64\v4.0.30319\MSBuild.exe2⤵PID:872
-
-
C:\Windows\Microsoft.NET\Framework64\v4.0.30319\MSBuild.exeC:\Windows\Microsoft.NET\Framework64\v4.0.30319\MSBuild.exe2⤵PID:696
-
-
C:\Windows\Microsoft.NET\Framework64\v4.0.30319\MSBuild.exeC:\Windows\Microsoft.NET\Framework64\v4.0.30319\MSBuild.exe2⤵PID:1584
-
-
C:\Windows\Microsoft.NET\Framework64\v4.0.30319\MSBuild.exeC:\Windows\Microsoft.NET\Framework64\v4.0.30319\MSBuild.exe2⤵PID:300
-
-
C:\Windows\Microsoft.NET\Framework64\v4.0.30319\MSBuild.exeC:\Windows\Microsoft.NET\Framework64\v4.0.30319\MSBuild.exe2⤵PID:1288
-
-
C:\Windows\Microsoft.NET\Framework64\v4.0.30319\MSBuild.exeC:\Windows\Microsoft.NET\Framework64\v4.0.30319\MSBuild.exe2⤵PID:1580
-
-
C:\Windows\Microsoft.NET\Framework64\v4.0.30319\MSBuild.exeC:\Windows\Microsoft.NET\Framework64\v4.0.30319\MSBuild.exe2⤵PID:1332
-
-
C:\Windows\Microsoft.NET\Framework64\v4.0.30319\MSBuild.exeC:\Windows\Microsoft.NET\Framework64\v4.0.30319\MSBuild.exe2⤵PID:760
-
-
C:\Windows\Microsoft.NET\Framework64\v4.0.30319\MSBuild.exeC:\Windows\Microsoft.NET\Framework64\v4.0.30319\MSBuild.exe2⤵PID:1148
-