Analysis
- max time kernel
127s - max time network
152s - platform
windows10-2004_x64 - resource
win10v2004-20230703-en - resource tags
arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system - submitted
30/08/2023, 22:10
Behavioral task
behavioral1
Sample
22026cba4cd7054928aeae6881c75f32674f76bc3a38165507e29743c8dee1d6.exe
Resource
win7-20230712-en
4 signatures
150 seconds
Behavioral task
behavioral2
Sample
22026cba4cd7054928aeae6881c75f32674f76bc3a38165507e29743c8dee1d6.exe
Resource
win10v2004-20230703-en
4 signatures
150 seconds
General
- Target 22026cba4cd7054928aeae6881c75f32674f76bc3a38165507e29743c8dee1d6.exe
- Size 3.5MB
- Sample230830-13tgqsbd83
- SHA256 22026cba4cd7054928aeae6881c75f32674f76bc3a38165507e29743c8dee1d6
- MD5 a4213aef7a5f55832cc4817296375b3f
- SHA1 b60b49f34c19ac26347bd923a95c62c594e3e012
- SHA512 31f78fd529083a1b981271070ffd72f6ba9abe4426f088b51b0a4104a5f82e4b3d5f485dedbca26d01b0eab387dc83928198e9c7bfcfd612133e6ecd1affa4d0
- SSDEEP 98304:oEjlmQbfgSgwvSnN4iVJur0xM/licQBqH:oEjgQPXq0/xQBqH
- MD5 SHA1 SHA512 SSDEEP
Score
7/10
Malware Config
Signatures
- Loads dropped DLL 1 IoCs
pid Process 2940 22026cba4cd7054928aeae6881c75f32674f76bc3a38165507e29743c8dee1d6.exe - Enumerates connected drives 3 TTPs 1 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
description ioc Process File opened (read-only) \??\F: 22026cba4cd7054928aeae6881c75f32674f76bc3a38165507e29743c8dee1d6.exe - Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs
Bootkits write to the MBR to gain persistence at a level below the operating system.
description ioc Process File opened for modification \??\PhysicalDrive0 22026cba4cd7054928aeae6881c75f32674f76bc3a38165507e29743c8dee1d6.exe - Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2940 22026cba4cd7054928aeae6881c75f32674f76bc3a38165507e29743c8dee1d6.exe 2940 22026cba4cd7054928aeae6881c75f32674f76bc3a38165507e29743c8dee1d6.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\22026cba4cd7054928aeae6881c75f32674f76bc3a38165507e29743c8dee1d6.exe"C:\Users\Admin\AppData\Local\Temp\22026cba4cd7054928aeae6881c75f32674f76bc3a38165507e29743c8dee1d6.exe"1⤵
- Loads dropped DLL
- Enumerates connected drives
- Writes to the Master Boot Record (MBR)
- Suspicious behavior: EnumeratesProcesses
PID:2940
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Tencent\TxGameAssistant\TGBDownloader\dr.dll
- Size 74KB
- SHA256 5904a7e4d97eeac939662c3638a0e145f64ff3dd0198f895c4bf0337595c6a67
- MD5 2814acbd607ba47bdbcdf6ac3076ee95
- SHA1 50ab892071bed2bb2365ca1d4bf5594e71c6b13b
- SHA512 34c73014ffc8d38d6dd29f4f84c8f4f9ea971bc131f665f65b277f453504d5efc2d483a792cdea610c5e0544bf3997b132dcdbe37224912c5234c15cdb89d498
- SSDEEP 768:2fqePMS8NxKDSYkK7U0H8zAqaMRmnJD+7OX4ubjJJYIn8n28zaTQ8PfcQWZcRZip:sPMS8NxpYZCrFiZbmnzIQ+cQtfiqDVQ
- MD5 SHA1 SHA512 SSDEEP