PDF malware analysis — malicious · bfef05310e541622

MALICIOUS

PDF

90.2 KB Created: 2021-03-16 19:48:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: bd0c1b6e084a7588528cc38da925eb9a SHA-1: d98f68408660b8057f71febc03332e1a2bd6dfb0 SHA-256: bfef05310e54162201244378f280eaba552c470e52484b2fc12faabd073a6b74

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier, indicating malicious intent. It contains embedded URIs that likely lead to phishing or malware distribution sites. The presence of external URIs suggests an attempt to redirect the user to a malicious resource, aligning with spearphishing tactics.

Machine Learning

Nyx PDF Classifier malicious score 0.9992

Heuristics 4

ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
External URI info PDF_URI

PDF contains an external URL action
Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL

The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
Embedded URL info EMBEDDED_URL

One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
URL https://xezojetit.ru/wix?keyword=mr+huis+2
- https://remofixar.weebly.com/uploads/1/3/0/7/130776049/fecbf8cd10f3.pdf
- http://alex-chekalev.com/sejesaxitukefomotvjq9w.pdf
- https://cdn.sqhk.co/togareguko/bhevbSx/mayan_temple_escape_room.pdf
- https://cdn.sqhk.co/zomuzuta/1KDhbib/iphone_11_pro_max_120hz.pdf
- http://mmamba.ru/11326172557qm3t2.pdf
- https://cdn.sqhk.co/riketumes/MFJibic/58009797038.pdf
- http://douchehub.xyz/xigufasupojikareseruxc4blt.pdf
- https://dubigeta.weebly.com/uploads/1/3/5/3/135341625/lasuwes-xedef-vegexuxub.pdf
- https://vuwugaletop.weebly.com/uploads/1/3/4/5/134588193/rivonuzef-busota-jekaragasig.pdf
- http://kernig.online/electric_blanket_controller_blinkingo6qsy.pdf
- https://safapovajedetux.weebly.com/uploads/1/3/4/6/134642125/65d67a01c3974.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://s3.amazonaws.com/xukanomarexumu/pepitosimiwu.pdf
- https://s3.amazonaws.com/xufaxoferugod/xugelor.pdf
- https://9526c93a-d340-4dca-b5fd-2864ff0888c4.filesusr.com/ugd/4c3d6a_b31f045d69654b6c85fc675f946fc540.pdf?index=true
- https://s3.amazonaws.com/sonutopexaramuf/dha_bahawalpur_form_5_marla.pdf
- https://51fd5013-30c4-43d1-89ce-86564632a3b5.filesusr.com/ugd/9f06f8_824cbedde9114633b15055a23049b0a0.pdf?index=true
- https://uploads.strikinglycdn.com/files/07ec2223-20c0-46c5-9c51-d993f6374597/xakibometezorowetowebov.pdf
- https://51956041-da35-40aa-96c1-085c1f47c80d.filesusr.com/ugd/e6e573_48b02d1eeb1341e288c452a116d60612.pdf?index=true
- https://s3.amazonaws.com/xetasif/vector_calculus_exercises_and_solutions.pdf
- https://s3.amazonaws.com/jusuberu/apartment_rental_lease_agreement_template.pdf
- https://uploads.strikinglycdn.com/files/8079f727-8aac-480c-bc92-00b7eda17802/microeconomics_textbook_class_11_cbse.pdf
- https://uploads.strikinglycdn.com/files/862b00d3-0e01-4944-8caf-cf62145bbc67/wise_wiser_wisest_meaning.pdf
- https://uploads.strikinglycdn.com/files/9a98cb69-d34d-40b2-bd8e-638f0303f22b/dabemiranaxuzixejo.pdf
- https://uploads.strikinglycdn.com/files/17e807ba-00d0-4aa7-92d1-08009d01911e/53089973417.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00012394.bin` `282a3f4d1bf25910997971d9d9fb8e9b7b8cce9f161f872d44707416a99aa2e8`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x12394	4668 bytes
`font_01_sfnt_off0001337c.bin` `11fc168e19c7960f52bf48f87e94b4b06eecde503246b3f688219882f77f7264`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1337C	11636 bytes

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