Analysis
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max time kernel
150s -
max time network
122s -
platform
windows7_x64 -
resource
win7-20231215-en -
resource tags
arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system -
submitted
30-12-2023 12:06
Static task
static1
Behavioral task
behavioral1
Sample
17ff421e11cc1bf3b6f1274e43b7435c.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
17ff421e11cc1bf3b6f1274e43b7435c.exe
Resource
win10v2004-20231215-en
General
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Target
17ff421e11cc1bf3b6f1274e43b7435c.exe
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Size
318KB
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MD5
17ff421e11cc1bf3b6f1274e43b7435c
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SHA1
6cfa5688fe8ca2f5cbb095255d95d48a625a42b6
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SHA256
195a8f7542c4f37fa6de3c76c9a832c33207ce5a814e526adc1d0b9bba9ed5f1
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SHA512
137b49ba9be1a51d245f41d1b6267e6c5e254ce849563ed8b6992873830a1c342cdceea0857170cd90c1adfaa5387ee5ac61339efa00e3b270ed875136a8d008
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SSDEEP
6144:v10PyuSVFHbQ7tpo7UGoYm7QjhDD5qH3JB81AIeTpdtx:WFSVJmtpoMYUiBKVV3
Malware Config
Extracted
smokeloader
pub1
Extracted
smokeloader
2020
http://conceitosseg.com/upload/
http://integrasidata.com/upload/
http://ozentekstil.com/upload/
http://finbelportal.com/upload/
http://telanganadigital.com/upload/
Signatures
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SmokeLoader
Modular backdoor trojan in use since 2014.
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Deletes itself 1 IoCs
pid Process 1272 Process not Found -
Executes dropped EXE 1 IoCs
pid Process 684 svdtjbs -
Loads dropped DLL 3 IoCs
pid Process 2428 17ff421e11cc1bf3b6f1274e43b7435c.exe 1652 WerFault.exe 1652 WerFault.exe -
Program crash 1 IoCs
pid pid_target Process procid_target 1652 684 WerFault.exe 31 -
Checks SCSI registry key(s) 3 TTPs 3 IoCs
SCSI information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI 17ff421e11cc1bf3b6f1274e43b7435c.exe Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI 17ff421e11cc1bf3b6f1274e43b7435c.exe Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI 17ff421e11cc1bf3b6f1274e43b7435c.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2428 17ff421e11cc1bf3b6f1274e43b7435c.exe 2428 17ff421e11cc1bf3b6f1274e43b7435c.exe 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found -
Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 2428 17ff421e11cc1bf3b6f1274e43b7435c.exe -
Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 1272 Process not Found 1272 Process not Found -
Suspicious use of SendNotifyMessage 2 IoCs
pid Process 1272 Process not Found 1272 Process not Found -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 2764 wrote to memory of 684 2764 taskeng.exe 31 PID 2764 wrote to memory of 684 2764 taskeng.exe 31 PID 2764 wrote to memory of 684 2764 taskeng.exe 31 PID 2764 wrote to memory of 684 2764 taskeng.exe 31 PID 684 wrote to memory of 1652 684 svdtjbs 32 PID 684 wrote to memory of 1652 684 svdtjbs 32 PID 684 wrote to memory of 1652 684 svdtjbs 32 PID 684 wrote to memory of 1652 684 svdtjbs 32 -
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\17ff421e11cc1bf3b6f1274e43b7435c.exe"C:\Users\Admin\AppData\Local\Temp\17ff421e11cc1bf3b6f1274e43b7435c.exe"1⤵
- Loads dropped DLL
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:2428
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C:\Windows\system32\taskeng.exetaskeng.exe {F70E3180-AD25-4153-A27E-055109614C4F} S-1-5-21-452311807-3713411997-1028535425-1000:OZEMQECW\Admin:Interactive:[1]1⤵
- Suspicious use of WriteProcessMemory
PID:2764 -
C:\Users\Admin\AppData\Roaming\svdtjbsC:\Users\Admin\AppData\Roaming\svdtjbs2⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:684 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 684 -s 1243⤵
- Loads dropped DLL
- Program crash
PID:1652
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
318KB
MD517ff421e11cc1bf3b6f1274e43b7435c
SHA16cfa5688fe8ca2f5cbb095255d95d48a625a42b6
SHA256195a8f7542c4f37fa6de3c76c9a832c33207ce5a814e526adc1d0b9bba9ed5f1
SHA512137b49ba9be1a51d245f41d1b6267e6c5e254ce849563ed8b6992873830a1c342cdceea0857170cd90c1adfaa5387ee5ac61339efa00e3b270ed875136a8d008
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Filesize
1.2MB
MD5d124f55b9393c976963407dff51ffa79
SHA12c7bbedd79791bfb866898c85b504186db610b5d
SHA256ea1e16247c848c8c171c4cd1fa17bc5a018a1fcb0c0dac25009066b6667b8eef
SHA512278fe3a4b1fbbe700e4f4483b610133e975e36e101455661d5197bd892a68839b9d555499040d200c92aefa9e3819380e395c0cd85d5fc845c6364d128a8cf06