Analysis
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max time kernel
150s -
max time network
126s -
platform
windows7_x64 -
resource
win7-20230831-en -
resource tags
arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system -
submitted
17-09-2023 09:38
Static task
static1
Behavioral task
behavioral1
Sample
b54f42b5b0d19670960eb10c6789968a30df7e8532519b32d5ef33bf155fc034exe_JC.exe
Resource
win7-20230831-en
Behavioral task
behavioral2
Sample
b54f42b5b0d19670960eb10c6789968a30df7e8532519b32d5ef33bf155fc034exe_JC.exe
Resource
win10v2004-20230915-en
General
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Target
b54f42b5b0d19670960eb10c6789968a30df7e8532519b32d5ef33bf155fc034exe_JC.exe
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Size
252KB
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MD5
aa61de6ebd02482cd16996c6f42ba8ab
-
SHA1
dea6f794cf98f0084bf14916d956818169a36b76
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SHA256
b54f42b5b0d19670960eb10c6789968a30df7e8532519b32d5ef33bf155fc034
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SHA512
2c638be845bd245db502abee66de6eac9a96348f2e9f81e43bcf648e14caba3d2f075f4f25261ed1ae9ae542f268d36a6214bc08fec958b6eb9e6d8d42c952e3
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SSDEEP
3072:ajHIbQtMJSCTEKvAw2P7bhICAgYGlA5XFAf0jDb+:aEEtMJNEYAw2TCgvcX2MD
Malware Config
Extracted
smokeloader
up3
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.
-
Deletes itself 1 IoCs
Processes:
pid process 1328 -
Executes dropped EXE 2 IoCs
Processes:
cuhjuhecuhjuhepid process 2772 cuhjuhe 2656 cuhjuhe -
Loads dropped DLL 1 IoCs
Processes:
cuhjuhepid process 2772 cuhjuhe -
Suspicious use of SetThreadContext 2 IoCs
Processes:
b54f42b5b0d19670960eb10c6789968a30df7e8532519b32d5ef33bf155fc034exe_JC.execuhjuhedescription pid process target process PID 2328 set thread context of 2224 2328 b54f42b5b0d19670960eb10c6789968a30df7e8532519b32d5ef33bf155fc034exe_JC.exe b54f42b5b0d19670960eb10c6789968a30df7e8532519b32d5ef33bf155fc034exe_JC.exe PID 2772 set thread context of 2656 2772 cuhjuhe cuhjuhe -
Checks SCSI registry key(s) 3 TTPs 6 IoCs
SCSI information is often read in order to detect sandboxing environments.
Processes:
cuhjuheb54f42b5b0d19670960eb10c6789968a30df7e8532519b32d5ef33bf155fc034exe_JC.exedescription ioc process Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI cuhjuhe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI b54f42b5b0d19670960eb10c6789968a30df7e8532519b32d5ef33bf155fc034exe_JC.exe Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI b54f42b5b0d19670960eb10c6789968a30df7e8532519b32d5ef33bf155fc034exe_JC.exe Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI b54f42b5b0d19670960eb10c6789968a30df7e8532519b32d5ef33bf155fc034exe_JC.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI cuhjuhe Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI cuhjuhe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
b54f42b5b0d19670960eb10c6789968a30df7e8532519b32d5ef33bf155fc034exe_JC.exepid process 2224 b54f42b5b0d19670960eb10c6789968a30df7e8532519b32d5ef33bf155fc034exe_JC.exe 2224 b54f42b5b0d19670960eb10c6789968a30df7e8532519b32d5ef33bf155fc034exe_JC.exe 1328 1328 1328 1328 1328 1328 1328 1328 1328 1328 1328 1328 1328 1328 1328 1328 1328 1328 1328 1328 1328 1328 1328 1328 1328 1328 1328 1328 1328 1328 1328 1328 1328 1328 1328 1328 1328 1328 1328 1328 1328 1328 1328 1328 1328 1328 1328 1328 1328 1328 1328 1328 1328 1328 1328 1328 1328 1328 1328 1328 1328 1328 -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
pid process 1328 -
Suspicious behavior: MapViewOfSection 2 IoCs
Processes:
b54f42b5b0d19670960eb10c6789968a30df7e8532519b32d5ef33bf155fc034exe_JC.execuhjuhepid process 2224 b54f42b5b0d19670960eb10c6789968a30df7e8532519b32d5ef33bf155fc034exe_JC.exe 2656 cuhjuhe -
Suspicious use of WriteProcessMemory 18 IoCs
Processes:
b54f42b5b0d19670960eb10c6789968a30df7e8532519b32d5ef33bf155fc034exe_JC.exetaskeng.execuhjuhedescription pid process target process PID 2328 wrote to memory of 2224 2328 b54f42b5b0d19670960eb10c6789968a30df7e8532519b32d5ef33bf155fc034exe_JC.exe b54f42b5b0d19670960eb10c6789968a30df7e8532519b32d5ef33bf155fc034exe_JC.exe PID 2328 wrote to memory of 2224 2328 b54f42b5b0d19670960eb10c6789968a30df7e8532519b32d5ef33bf155fc034exe_JC.exe b54f42b5b0d19670960eb10c6789968a30df7e8532519b32d5ef33bf155fc034exe_JC.exe PID 2328 wrote to memory of 2224 2328 b54f42b5b0d19670960eb10c6789968a30df7e8532519b32d5ef33bf155fc034exe_JC.exe b54f42b5b0d19670960eb10c6789968a30df7e8532519b32d5ef33bf155fc034exe_JC.exe PID 2328 wrote to memory of 2224 2328 b54f42b5b0d19670960eb10c6789968a30df7e8532519b32d5ef33bf155fc034exe_JC.exe b54f42b5b0d19670960eb10c6789968a30df7e8532519b32d5ef33bf155fc034exe_JC.exe PID 2328 wrote to memory of 2224 2328 b54f42b5b0d19670960eb10c6789968a30df7e8532519b32d5ef33bf155fc034exe_JC.exe b54f42b5b0d19670960eb10c6789968a30df7e8532519b32d5ef33bf155fc034exe_JC.exe PID 2328 wrote to memory of 2224 2328 b54f42b5b0d19670960eb10c6789968a30df7e8532519b32d5ef33bf155fc034exe_JC.exe b54f42b5b0d19670960eb10c6789968a30df7e8532519b32d5ef33bf155fc034exe_JC.exe PID 2328 wrote to memory of 2224 2328 b54f42b5b0d19670960eb10c6789968a30df7e8532519b32d5ef33bf155fc034exe_JC.exe b54f42b5b0d19670960eb10c6789968a30df7e8532519b32d5ef33bf155fc034exe_JC.exe PID 2680 wrote to memory of 2772 2680 taskeng.exe cuhjuhe PID 2680 wrote to memory of 2772 2680 taskeng.exe cuhjuhe PID 2680 wrote to memory of 2772 2680 taskeng.exe cuhjuhe PID 2680 wrote to memory of 2772 2680 taskeng.exe cuhjuhe PID 2772 wrote to memory of 2656 2772 cuhjuhe cuhjuhe PID 2772 wrote to memory of 2656 2772 cuhjuhe cuhjuhe PID 2772 wrote to memory of 2656 2772 cuhjuhe cuhjuhe PID 2772 wrote to memory of 2656 2772 cuhjuhe cuhjuhe PID 2772 wrote to memory of 2656 2772 cuhjuhe cuhjuhe PID 2772 wrote to memory of 2656 2772 cuhjuhe cuhjuhe PID 2772 wrote to memory of 2656 2772 cuhjuhe cuhjuhe -
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\b54f42b5b0d19670960eb10c6789968a30df7e8532519b32d5ef33bf155fc034exe_JC.exe"C:\Users\Admin\AppData\Local\Temp\b54f42b5b0d19670960eb10c6789968a30df7e8532519b32d5ef33bf155fc034exe_JC.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2328 -
C:\Users\Admin\AppData\Local\Temp\b54f42b5b0d19670960eb10c6789968a30df7e8532519b32d5ef33bf155fc034exe_JC.exe"C:\Users\Admin\AppData\Local\Temp\b54f42b5b0d19670960eb10c6789968a30df7e8532519b32d5ef33bf155fc034exe_JC.exe"2⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:2224
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C:\Windows\system32\taskeng.exetaskeng.exe {5898AC87-E6D5-416B-8822-3F1DC6ACD196} S-1-5-21-686452656-3203474025-4140627569-1000:UUVOHKNL\Admin:Interactive:[1]1⤵
- Suspicious use of WriteProcessMemory
PID:2680 -
C:\Users\Admin\AppData\Roaming\cuhjuheC:\Users\Admin\AppData\Roaming\cuhjuhe2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2772 -
C:\Users\Admin\AppData\Roaming\cuhjuheC:\Users\Admin\AppData\Roaming\cuhjuhe3⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious behavior: MapViewOfSection
PID:2656
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
-
Filesize
252KB
MD5aa61de6ebd02482cd16996c6f42ba8ab
SHA1dea6f794cf98f0084bf14916d956818169a36b76
SHA256b54f42b5b0d19670960eb10c6789968a30df7e8532519b32d5ef33bf155fc034
SHA5122c638be845bd245db502abee66de6eac9a96348f2e9f81e43bcf648e14caba3d2f075f4f25261ed1ae9ae542f268d36a6214bc08fec958b6eb9e6d8d42c952e3
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Filesize
252KB
MD5aa61de6ebd02482cd16996c6f42ba8ab
SHA1dea6f794cf98f0084bf14916d956818169a36b76
SHA256b54f42b5b0d19670960eb10c6789968a30df7e8532519b32d5ef33bf155fc034
SHA5122c638be845bd245db502abee66de6eac9a96348f2e9f81e43bcf648e14caba3d2f075f4f25261ed1ae9ae542f268d36a6214bc08fec958b6eb9e6d8d42c952e3
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Filesize
252KB
MD5aa61de6ebd02482cd16996c6f42ba8ab
SHA1dea6f794cf98f0084bf14916d956818169a36b76
SHA256b54f42b5b0d19670960eb10c6789968a30df7e8532519b32d5ef33bf155fc034
SHA5122c638be845bd245db502abee66de6eac9a96348f2e9f81e43bcf648e14caba3d2f075f4f25261ed1ae9ae542f268d36a6214bc08fec958b6eb9e6d8d42c952e3
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Filesize
252KB
MD5aa61de6ebd02482cd16996c6f42ba8ab
SHA1dea6f794cf98f0084bf14916d956818169a36b76
SHA256b54f42b5b0d19670960eb10c6789968a30df7e8532519b32d5ef33bf155fc034
SHA5122c638be845bd245db502abee66de6eac9a96348f2e9f81e43bcf648e14caba3d2f075f4f25261ed1ae9ae542f268d36a6214bc08fec958b6eb9e6d8d42c952e3