Analysis
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max time kernel
150s -
max time network
55s -
platform
windows7_x64 -
resource
win7-20230220-en -
resource tags
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submitted
01/06/2023, 06:18
General
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Target
tmp.exe
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Size
567KB
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MD5
c8007c3ce22859007c4678adeb600457
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SHA1
6e7fa22dcf0b9321203600bdbcb788d8b5fe83e6
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SHA256
e2f347dbc5b3cf28a213b4c35d5c17d87658a065d28dc818b34b403ab0e0e67e
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SHA512
3af09d5096f94d307f51417ad6c339de44761f65d4f0f580c995623dac53d2cc463d2e8a20044ea1944e1a7886d279f7efa999741f1bbd531c626a8727953011
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SSDEEP
6144:sBeZKbBMMlpM43J4KjvPZ3MqPHkSghgWK7Kp1QFDNPmU/:XaBFpMOJtDB3Lv8xfeJmW
Malware Config
Extracted
smokeloader
2022
http://dropbuyinc.ga/
http://omacrestinc.ga/
Signatures
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Guloader,Cloudeye
A shellcode based downloader first seen in 2020.
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SmokeLoader
Modular backdoor trojan in use since 2014.
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Checks QEMU agent file 2 TTPs 2 IoCs
Checks presence of QEMU agent, possibly to detect virtualization.
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Loads dropped DLL 1 IoCs
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Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs
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Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
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Suspicious use of SetThreadContext 1 IoCs
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Drops file in Program Files directory 1 IoCs
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Checks SCSI registry key(s) 3 TTPs 3 IoCs
SCSI information is often read in order to detect sandboxing environments.
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Suspicious behavior: EnumeratesProcesses 64 IoCs
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Suspicious behavior: GetForegroundWindowSpam 1 IoCs
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Suspicious behavior: MapViewOfSection 2 IoCs
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Suspicious use of WriteProcessMemory 8 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\tmp.exe"C:\Users\Admin\AppData\Local\Temp\tmp.exe"1⤵
- Checks QEMU agent file
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Drops file in Program Files directory
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\tmp.exe"C:\Users\Admin\AppData\Local\Temp\tmp.exe"2⤵
- Checks QEMU agent file
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
11KB
MD53f176d1ee13b0d7d6bd92e1c7a0b9bae
SHA1fe582246792774c2c9dd15639ffa0aca90d6fd0b
SHA256fa4ab1d6f79fd677433a31ada7806373a789d34328da46ccb0449bbf347bd73e
SHA5120a69124819b7568d0dea4e9e85ce8fe61c7ba697c934e3a95e2dcfb9f252b1d9da7faf8774b6e8efd614885507acc94987733eba09a2f5e7098b774dfc8524b6
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Filesize
20.1MB
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Filesize
16.4MB
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Filesize
20.1MB
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Filesize
16.4MB
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Filesize
16.4MB
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Filesize
20.1MB
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Filesize
16.4MB
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Filesize
20.1MB
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Filesize
16.4MB
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Filesize
88KB
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Filesize
20.1MB
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Filesize
20.1MB