Analysis
- max time kernel
150s - max time network
125s - platform
windows7_x64 - resource
win7-20231020-en - resource tags
arch:x64arch:x86image:win7-20231020-enlocale:en-usos:windows7-x64system - submitted
25/11/2023, 01:18
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
5fc13ae876abfaf17064f002a33de0d3.exe
Resource
win7-20231020-en
windows7-x64
10 signatures
150 seconds
Behavioral task
behavioral2
Sample
5fc13ae876abfaf17064f002a33de0d3.exe
Resource
win10v2004-20231023-en
windows10-2004-x64
6 signatures
150 seconds
General
- Target 5fc13ae876abfaf17064f002a33de0d3.exe
- Size 335KB
- Sample231125-bnyepsff22
- SHA256 10ee1aca215a5ecbf4bf1088639b0903ff0fe4801c75c1c047bb2db5c30b9bd6
- MD5 5fc13ae876abfaf17064f002a33de0d3
- SHA1 e137a1ec7a87dffadd01f96a480ee47c6c39498c
- SHA512 fb95c9a39bf4a11efc397c789bbc1223dcead624b255a4224cfd50e05a9956349dd51bc7e1e37a93d6878d41612c06d9c841bf0fdd60d941deab8a9062e45fbc
- SSDEEP 6144:Xo48e53vZcB1lAJkBCmFgzqEKqMT6TGx:Xo48sUokBz1E1T6
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Extracted
Family
-
smokeloader
Botnet
-
pub1
Extracted
Family
-
smokeloader
Version
-
2020
C2
-
http://host-file-host6.com/
-
http://host-host-file8.com/
rc4.i32
rc4.i32
Signatures
- SmokeLoader
Modular backdoor trojan in use since 2014.
- Deletes itself 1 IoCs
pid Process 1344 Process not Found - Executes dropped EXE 2 IoCs
pid Process 2896 wauwgsu 2536 wauwgsu - Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 1272 set thread context of 2100 1272 5fc13ae876abfaf17064f002a33de0d3.exe 28 PID 2896 set thread context of 2536 2896 wauwgsu 33 - Checks SCSI registry key(s) 3 TTPs 6 IoCs
SCSI information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI 5fc13ae876abfaf17064f002a33de0d3.exe Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI 5fc13ae876abfaf17064f002a33de0d3.exe Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI 5fc13ae876abfaf17064f002a33de0d3.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI wauwgsu Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI wauwgsu Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI wauwgsu - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2100 5fc13ae876abfaf17064f002a33de0d3.exe 2100 5fc13ae876abfaf17064f002a33de0d3.exe 1344 Process not Found 1344 Process not Found 1344 Process not Found 1344 Process not Found 1344 Process not Found 1344 Process not Found 1344 Process not Found 1344 Process not Found 1344 Process not Found 1344 Process not Found 1344 Process not Found 1344 Process not Found 1344 Process not Found 1344 Process not Found 1344 Process not Found 1344 Process not Found 1344 Process not Found 1344 Process not Found 1344 Process not Found 1344 Process not Found 1344 Process not Found 1344 Process not Found 1344 Process not Found 1344 Process not Found 1344 Process not Found 1344 Process not Found 1344 Process not Found 1344 Process not Found 1344 Process not Found 1344 Process not Found 1344 Process not Found 1344 Process not Found 1344 Process not Found 1344 Process not Found 1344 Process not Found 1344 Process not Found 1344 Process not Found 1344 Process not Found 1344 Process not Found 1344 Process not Found 1344 Process not Found 1344 Process not Found 1344 Process not Found 1344 Process not Found 1344 Process not Found 1344 Process not Found 1344 Process not Found 1344 Process not Found 1344 Process not Found 1344 Process not Found 1344 Process not Found 1344 Process not Found 1344 Process not Found 1344 Process not Found 1344 Process not Found 1344 Process not Found 1344 Process not Found 1344 Process not Found 1344 Process not Found 1344 Process not Found 1344 Process not Found 1344 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 1344 Process not Found - Suspicious behavior: MapViewOfSection 2 IoCs
pid Process 2100 5fc13ae876abfaf17064f002a33de0d3.exe 2536 wauwgsu - Suspicious use of WriteProcessMemory 18 IoCs
description pid Process procid_target PID 1272 wrote to memory of 2100 1272 5fc13ae876abfaf17064f002a33de0d3.exe 28 PID 1272 wrote to memory of 2100 1272 5fc13ae876abfaf17064f002a33de0d3.exe 28 PID 1272 wrote to memory of 2100 1272 5fc13ae876abfaf17064f002a33de0d3.exe 28 PID 1272 wrote to memory of 2100 1272 5fc13ae876abfaf17064f002a33de0d3.exe 28 PID 1272 wrote to memory of 2100 1272 5fc13ae876abfaf17064f002a33de0d3.exe 28 PID 1272 wrote to memory of 2100 1272 5fc13ae876abfaf17064f002a33de0d3.exe 28 PID 1272 wrote to memory of 2100 1272 5fc13ae876abfaf17064f002a33de0d3.exe 28 PID 3012 wrote to memory of 2896 3012 taskeng.exe 32 PID 3012 wrote to memory of 2896 3012 taskeng.exe 32 PID 3012 wrote to memory of 2896 3012 taskeng.exe 32 PID 3012 wrote to memory of 2896 3012 taskeng.exe 32 PID 2896 wrote to memory of 2536 2896 wauwgsu 33 PID 2896 wrote to memory of 2536 2896 wauwgsu 33 PID 2896 wrote to memory of 2536 2896 wauwgsu 33 PID 2896 wrote to memory of 2536 2896 wauwgsu 33 PID 2896 wrote to memory of 2536 2896 wauwgsu 33 PID 2896 wrote to memory of 2536 2896 wauwgsu 33 PID 2896 wrote to memory of 2536 2896 wauwgsu 33 - Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
-
C:\Users\Admin\AppData\Local\Temp\5fc13ae876abfaf17064f002a33de0d3.exe"C:\Users\Admin\AppData\Local\Temp\5fc13ae876abfaf17064f002a33de0d3.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1272 -
C:\Users\Admin\AppData\Local\Temp\5fc13ae876abfaf17064f002a33de0d3.exe"C:\Users\Admin\AppData\Local\Temp\5fc13ae876abfaf17064f002a33de0d3.exe"2⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:2100
-
-
C:\Windows\system32\taskeng.exetaskeng.exe {2BB1AC0E-D3D7-4B5F-B25A-DB01E9F59DF2} S-1-5-21-2084844033-2744876406-2053742436-1000:GGPVHMXR\Admin:Interactive:[1]1⤵
- Suspicious use of WriteProcessMemory
PID:3012 -
C:\Users\Admin\AppData\Roaming\wauwgsuC:\Users\Admin\AppData\Roaming\wauwgsu2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2896 -
C:\Users\Admin\AppData\Roaming\wauwgsuC:\Users\Admin\AppData\Roaming\wauwgsu3⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious behavior: MapViewOfSection
PID:2536
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Roaming\wauwgsu
- Size 335KB
- SHA256 10ee1aca215a5ecbf4bf1088639b0903ff0fe4801c75c1c047bb2db5c30b9bd6
- MD5 5fc13ae876abfaf17064f002a33de0d3
- SHA1 e137a1ec7a87dffadd01f96a480ee47c6c39498c
- SHA512 fb95c9a39bf4a11efc397c789bbc1223dcead624b255a4224cfd50e05a9956349dd51bc7e1e37a93d6878d41612c06d9c841bf0fdd60d941deab8a9062e45fbc
- SSDEEP 6144:Xo48e53vZcB1lAJkBCmFgzqEKqMT6TGx:Xo48sUokBz1E1T6
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\wauwgsu
- Size 335KB
- SHA256 10ee1aca215a5ecbf4bf1088639b0903ff0fe4801c75c1c047bb2db5c30b9bd6
- MD5 5fc13ae876abfaf17064f002a33de0d3
- SHA1 e137a1ec7a87dffadd01f96a480ee47c6c39498c
- SHA512 fb95c9a39bf4a11efc397c789bbc1223dcead624b255a4224cfd50e05a9956349dd51bc7e1e37a93d6878d41612c06d9c841bf0fdd60d941deab8a9062e45fbc
- SSDEEP 6144:Xo48e53vZcB1lAJkBCmFgzqEKqMT6TGx:Xo48sUokBz1E1T6
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\wauwgsu
- Size 335KB
- SHA256 10ee1aca215a5ecbf4bf1088639b0903ff0fe4801c75c1c047bb2db5c30b9bd6
- MD5 5fc13ae876abfaf17064f002a33de0d3
- SHA1 e137a1ec7a87dffadd01f96a480ee47c6c39498c
- SHA512 fb95c9a39bf4a11efc397c789bbc1223dcead624b255a4224cfd50e05a9956349dd51bc7e1e37a93d6878d41612c06d9c841bf0fdd60d941deab8a9062e45fbc
- SSDEEP 6144:Xo48e53vZcB1lAJkBCmFgzqEKqMT6TGx:Xo48sUokBz1E1T6
- MD5 SHA1 SHA512 SSDEEP