Analysis
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max time kernel
95s -
max time network
96s -
platform
windows10-2004_x64 -
resource
win10v2004-20250129-en -
resource tags
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submitted
03-02-2025 08:56
General
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Target
Facturas pdf.exe
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Size
562KB
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MD5
ac95b030d070152383d1e7cb8848c666
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SHA1
ecc1e3bbfb34901f7318f53bbf6a0de5ed7f2c13
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SHA256
9915d5e510f38806933bfc362590ba12f31c0f003cf40a84b12a5f997b2959fa
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SHA512
f02a84ebe21348452b5ba67762f1ea3b3915a4b1e5a10d3cfa6b456371861384be5abc60123798371a92a59f5fd3ce1a0ee5f3c00e527110ee9e95d8ce087bb2
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SSDEEP
12288:1k2kjT6WanMG0UCcmhcz218oAm3R3W6TRVZdMNd/:+T6BMSCcmv18oRR1ZdM7
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 10 IoCs
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Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
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Drops file in System32 directory 1 IoCs
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Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs
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Suspicious use of NtSetInformationThreadHideFromDebugger 2 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 14 IoCs
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Suspicious behavior: MapViewOfSection 1 IoCs
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Suspicious use of WriteProcessMemory 4 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\Facturas pdf.exe"C:\Users\Admin\AppData\Local\Temp\Facturas pdf.exe"1⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\Facturas pdf.exe"C:\Users\Admin\AppData\Local\Temp\Facturas pdf.exe"2⤵
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
5KB
MD5f1e9eed02db3a822a7ddef0c724e5f1f
SHA165864992f5b6c79c5efbefb5b1354648a8a86709
SHA2566dff504c6759c418c6635c9b25b8c91d0d9ef7787a3a93610d7670bb563c09df
SHA512c22b64fff76b25cf53231b8636f07b361d95791c4646787ce7beac27ad6a0de88337dcceb25b5196f97c452dda72e2614647f51a8a18cb4d5228a82ed2e0780c
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Filesize
11KB
MD517ed1c86bd67e78ade4712be48a7d2bd
SHA11cc9fe86d6d6030b4dae45ecddce5907991c01a0
SHA256bd046e6497b304e4ea4ab102cab2b1f94ce09bde0eebba4c59942a732679e4eb
SHA5120cbed521e7d6d1f85977b3f7d3ca7ac34e1b5495b69fd8c7bfa1a846baf53b0ecd06fe1ad02a3599082ffacaf8c71a3bb4e32dec05f8e24859d736b828092cd5
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Filesize
4KB
MD52e7baf4f3c9f5830af25c66ecbe1dac4
SHA1275ee3d8faeef514ec71605788561bae14f3a48a
SHA25637346b6387f7d33a9eab62407f94cd716081eb80d7443db91b788479e6fcaf4c
SHA512a7900cc0e56998f9cd30b24584c15a8a533139cb01d16bf2046c1b1bf5ffbd67216aac69a83d1968206a99185f692bf21429622cbf53a9abbbf528ff21f7cb45
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Filesize
18.3MB
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Filesize
12KB
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Filesize
12KB
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Filesize
18.3MB
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Filesize
84.9MB
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Filesize
4KB
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Filesize
4KB
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Filesize
18.3MB
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Filesize
18.3MB
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Filesize
18.3MB
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Filesize
18.3MB
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Filesize
1.1MB
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Filesize
18.3MB
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Filesize
84.9MB
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Filesize
12KB
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Filesize
1.1MB
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Filesize
4KB
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Filesize
1.1MB