PDF malware analysis — malicious · ec56e733b5bb175d

MALICIOUS

PDF

49.6 KB Created: 2020-10-28 02:27:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-14

MD5: 9de09bae9b777398c3af65e069f8cf98 SHA-1: 946e0cc223021e59037c32d3f93364c306f3f3f5 SHA-256: ec56e733b5bb175dd471c5605e0334fb47b00a0791b4792bf5353f0f0748563e

154 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains embedded links that lead to a redirector URL, which is a common tactic for distributing malware or unwanted software. The document body and heuristics indicate a lure for downloading 'mobdro apk', suggesting a deceptive download attempt. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest malicious intent.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 4

PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK

PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM

Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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://ttraff.club/pify?keyword=mobdro+apk+download+free+android In PDF document text
- https://cdn-cms.f-static.net/uploads/4365560/normal_5f8726b32be5e.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4368471/normal_5f9485b2cfd00.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4367617/normal_5f92922ce92d9.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4412909/normal_5f94ad3a749dd.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4383568/normal_5f8f9518ad8b2.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4375073/normal_5f8c9fa136be1.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4387810/normal_5f97662d9ec6e.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4367624/normal_5f8758c27b07c.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://s3.amazonaws.com/daraniwekamidir/applied_descriptive_geometry_2nd_edition.pdfIn PDF document text
- https://s3.amazonaws.com/vonuxagupeduze/african_american_inventors_worksheet.pdfIn PDF document text
- https://s3.amazonaws.com/wuniku/bacterias_resumen.pdfIn PDF document text
- https://s3.amazonaws.com/dinisemowoge/kuvafexol.pdfIn PDF document text
- https://s3.amazonaws.com/kavitokolezub/veserivelu.pdfIn PDF document text
- https://s3.amazonaws.com/jasadavebaga/andhra_pradesh_government_schemes_2018.pdfIn PDF document text
- https://s3.amazonaws.com/temujonuwu/67874005255.pdfIn PDF document text
- https://s3.amazonaws.com/gupawupigawono/online_editor_merge.pdfIn PDF document text
- https://s3.amazonaws.com/rujabepifar/gutevim.pdfIn PDF document text
- https://s3.amazonaws.com/turip/xibat.pdfIn PDF document text
- https://s3.amazonaws.com/dalava/kauai_smoothie_recipes.pdfIn PDF document text
- https://s3.amazonaws.com/zarusegibitumet/aeneid_online.pdfIn PDF document text
- https://s3.amazonaws.com/foneniz/16474900711.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0482/0880/6045/files/11271873183.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0493/1941/1878/files/juego_de_la_oca_rules.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0463/8353/0139/files/molina_healthcare_florida_provider_manual.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/5744/6050/files/world_war_1_crossword_puzzle_answer_key.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off000075b2.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x75B2	4868 bytes
SHA-256: `98192d4664159f28c02cb96fbb03c0b7d738cafbba03b0d9191a985f6d4ed791`
`font_01_sfnt_off00008654.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8654	11264 bytes
SHA-256: `9584efeae221485554142392072aea23090ad60e43200c10033767c5b464c48f`
`font_02_sfnt_off0000aac6.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xAAC6	4324 bytes
SHA-256: `ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3`

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