Analysis
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max time kernel
149s -
max time network
153s -
platform
windows10-2004_x64 -
resource
win10v2004-20250129-en -
resource tags
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submitted
06-02-2025 06:52
General
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Target
858688510aeff9e47282692cccf72d58fe45b6bc128b49f3f5248d11e54f771c.exe
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Size
542KB
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MD5
a81990bb342611261db37a0eecab1a3a
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SHA1
f848c1ff34bdbb82199de22c4c49d8ebef790031
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SHA256
858688510aeff9e47282692cccf72d58fe45b6bc128b49f3f5248d11e54f771c
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SHA512
bd6f57bef5b21e651bb7de998640a961a6fabb2fc1073a2aa1867f4feffd405fff127bed2fccbf9f564a977ce938b7a47151c917b7e65a7afb78a71f914e5205
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SSDEEP
12288:9bLlN73eJi4xLl7K3m1Ux4kRBA9/PxCGGd/9hKVZFDN:9bzSJikm7BA9/PxOd3KD
Malware Config
Signatures
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Guloader family
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Guloader,Cloudeye
A shellcode based downloader first seen in 2020.
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Loads dropped DLL 1 IoCs
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Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
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Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
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Looks up external IP address via web service 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
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Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs
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Suspicious use of NtSetInformationThreadHideFromDebugger 2 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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System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
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Suspicious behavior: EnumeratesProcesses 1 IoCs
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Suspicious behavior: MapViewOfSection 1 IoCs
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Suspicious use of AdjustPrivilegeToken 1 IoCs
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Suspicious use of WriteProcessMemory 4 IoCs
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outlook_office_path 1 IoCs
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outlook_win_path 1 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\858688510aeff9e47282692cccf72d58fe45b6bc128b49f3f5248d11e54f771c.exe"C:\Users\Admin\AppData\Local\Temp\858688510aeff9e47282692cccf72d58fe45b6bc128b49f3f5248d11e54f771c.exe"1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\858688510aeff9e47282692cccf72d58fe45b6bc128b49f3f5248d11e54f771c.exe"C:\Users\Admin\AppData\Local\Temp\858688510aeff9e47282692cccf72d58fe45b6bc128b49f3f5248d11e54f771c.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
12KB
MD5cff85c549d536f651d4fb8387f1976f2
SHA1d41ce3a5ff609df9cf5c7e207d3b59bf8a48530e
SHA2568dc562cda7217a3a52db898243de3e2ed68b80e62ddcb8619545ed0b4e7f65a8
SHA512531d6328daf3b86d85556016d299798fa06fefc81604185108a342d000e203094c8c12226a12bd6e1f89b0db501fb66f827b610d460b933bd4ab936ac2fd8a88
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Filesize
4KB
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Filesize
40KB
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Filesize
57.2MB
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Filesize
1.1MB
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Filesize
4KB
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Filesize
4KB
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Filesize
18.3MB
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Filesize
120KB
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Filesize
7.7MB
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Filesize
57.2MB
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Filesize
1.1MB
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Filesize
5.6MB
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Filesize
624KB
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Filesize
7.7MB
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Filesize
320KB
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Filesize
1.8MB
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Filesize
584KB
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Filesize
4KB
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Filesize
1.1MB
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Filesize
4KB