Analysis
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max time kernel
150s -
max time network
127s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system -
submitted
14/04/2023, 23:18
Static task
static1
Behavioral task
behavioral1
Sample
8a9a945c25f37431a6ee971ea9bb4b71dcc000a73d7b41f50973bf20bb198ab3.exe
Resource
win10v2004-20230220-en
General
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Target
8a9a945c25f37431a6ee971ea9bb4b71dcc000a73d7b41f50973bf20bb198ab3.exe
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Size
350KB
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MD5
b148500e29c734f5e2bb8b6acabbc69c
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SHA1
d6de03a5eac546f17a10112fc1040be174eee24e
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SHA256
8a9a945c25f37431a6ee971ea9bb4b71dcc000a73d7b41f50973bf20bb198ab3
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SHA512
1163b6627bc769c64f45d0bb9bf3e9e42f94098283ef0763fbbf306e50ab733cb1453c1e2d3634c613f161f45072c394fe9405c12145dc6016729909aae48eac
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SSDEEP
6144:WuN18W8VENBSwEnm4PBxctsuxvE1E76HPWzhgTXgxi:WusWg8SwEnm4ZxcFvqHeKDd
Malware Config
Extracted
smokeloader
pu10
Extracted
smokeloader
2020
http://host-file-host6.com/
http://host-host-file8.com/
Signatures
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SmokeLoader
Modular backdoor trojan in use since 2014.
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Executes dropped EXE 2 IoCs
pid Process 4872 fvjwvrc 4080 fvjwvrc -
Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 1512 set thread context of 1976 1512 8a9a945c25f37431a6ee971ea9bb4b71dcc000a73d7b41f50973bf20bb198ab3.exe 84 PID 4872 set thread context of 4080 4872 fvjwvrc 93 -
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 8a9a945c25f37431a6ee971ea9bb4b71dcc000a73d7b41f50973bf20bb198ab3.exe Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI 8a9a945c25f37431a6ee971ea9bb4b71dcc000a73d7b41f50973bf20bb198ab3.exe Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI 8a9a945c25f37431a6ee971ea9bb4b71dcc000a73d7b41f50973bf20bb198ab3.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI fvjwvrc Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI fvjwvrc Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI fvjwvrc -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1976 8a9a945c25f37431a6ee971ea9bb4b71dcc000a73d7b41f50973bf20bb198ab3.exe 1976 8a9a945c25f37431a6ee971ea9bb4b71dcc000a73d7b41f50973bf20bb198ab3.exe 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 3196 Process not Found -
Suspicious behavior: MapViewOfSection 2 IoCs
pid Process 1976 8a9a945c25f37431a6ee971ea9bb4b71dcc000a73d7b41f50973bf20bb198ab3.exe 4080 fvjwvrc -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeShutdownPrivilege 3196 Process not Found Token: SeCreatePagefilePrivilege 3196 Process not Found -
Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 1512 wrote to memory of 1976 1512 8a9a945c25f37431a6ee971ea9bb4b71dcc000a73d7b41f50973bf20bb198ab3.exe 84 PID 1512 wrote to memory of 1976 1512 8a9a945c25f37431a6ee971ea9bb4b71dcc000a73d7b41f50973bf20bb198ab3.exe 84 PID 1512 wrote to memory of 1976 1512 8a9a945c25f37431a6ee971ea9bb4b71dcc000a73d7b41f50973bf20bb198ab3.exe 84 PID 1512 wrote to memory of 1976 1512 8a9a945c25f37431a6ee971ea9bb4b71dcc000a73d7b41f50973bf20bb198ab3.exe 84 PID 1512 wrote to memory of 1976 1512 8a9a945c25f37431a6ee971ea9bb4b71dcc000a73d7b41f50973bf20bb198ab3.exe 84 PID 1512 wrote to memory of 1976 1512 8a9a945c25f37431a6ee971ea9bb4b71dcc000a73d7b41f50973bf20bb198ab3.exe 84 PID 4872 wrote to memory of 4080 4872 fvjwvrc 93 PID 4872 wrote to memory of 4080 4872 fvjwvrc 93 PID 4872 wrote to memory of 4080 4872 fvjwvrc 93 PID 4872 wrote to memory of 4080 4872 fvjwvrc 93 PID 4872 wrote to memory of 4080 4872 fvjwvrc 93 PID 4872 wrote to memory of 4080 4872 fvjwvrc 93 -
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
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C:\Users\Admin\AppData\Local\Temp\8a9a945c25f37431a6ee971ea9bb4b71dcc000a73d7b41f50973bf20bb198ab3.exe"C:\Users\Admin\AppData\Local\Temp\8a9a945c25f37431a6ee971ea9bb4b71dcc000a73d7b41f50973bf20bb198ab3.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1512 -
C:\Users\Admin\AppData\Local\Temp\8a9a945c25f37431a6ee971ea9bb4b71dcc000a73d7b41f50973bf20bb198ab3.exe"C:\Users\Admin\AppData\Local\Temp\8a9a945c25f37431a6ee971ea9bb4b71dcc000a73d7b41f50973bf20bb198ab3.exe"2⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:1976
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C:\Users\Admin\AppData\Roaming\fvjwvrcC:\Users\Admin\AppData\Roaming\fvjwvrc1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4872 -
C:\Users\Admin\AppData\Roaming\fvjwvrcC:\Users\Admin\AppData\Roaming\fvjwvrc2⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious behavior: MapViewOfSection
PID:4080
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
350KB
MD5b148500e29c734f5e2bb8b6acabbc69c
SHA1d6de03a5eac546f17a10112fc1040be174eee24e
SHA2568a9a945c25f37431a6ee971ea9bb4b71dcc000a73d7b41f50973bf20bb198ab3
SHA5121163b6627bc769c64f45d0bb9bf3e9e42f94098283ef0763fbbf306e50ab733cb1453c1e2d3634c613f161f45072c394fe9405c12145dc6016729909aae48eac
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Filesize
350KB
MD5b148500e29c734f5e2bb8b6acabbc69c
SHA1d6de03a5eac546f17a10112fc1040be174eee24e
SHA2568a9a945c25f37431a6ee971ea9bb4b71dcc000a73d7b41f50973bf20bb198ab3
SHA5121163b6627bc769c64f45d0bb9bf3e9e42f94098283ef0763fbbf306e50ab733cb1453c1e2d3634c613f161f45072c394fe9405c12145dc6016729909aae48eac
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Filesize
350KB
MD5b148500e29c734f5e2bb8b6acabbc69c
SHA1d6de03a5eac546f17a10112fc1040be174eee24e
SHA2568a9a945c25f37431a6ee971ea9bb4b71dcc000a73d7b41f50973bf20bb198ab3
SHA5121163b6627bc769c64f45d0bb9bf3e9e42f94098283ef0763fbbf306e50ab733cb1453c1e2d3634c613f161f45072c394fe9405c12145dc6016729909aae48eac