Malicious PDF — malware analysis report

Static analysis result for SHA-256 60bb262d6b920cda…

MALICIOUS

PDF

95.1 KB Created: 2020-08-03 07:18:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2356dad90784158458a7a7bfd67ccb63 SHA-1: 6fbf7a0776cd8130bae47a9867a9a495f2d0df47 SHA-256: 60bb262d6b920cda13a3f33a264be060b7549ba8775572e87c026bc15f186e42
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a link disguised as a search result for 'Harry Potter y la piedra filosofal pelicula'. This link, identified as a malicious redirector, leads to 'https://ttraff.cc/pify'. The document also features a large number of embedded links, many pointing to Shopify domains, suggesting a link farm or SEO manipulation tactic. The ML classifier strongly indicates maliciousness.

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.cc/pify?keyword=harry+potter+y+la+piedra+filosofal+pelicula
    • http://files.monteservicingandrepair.com/uploads/1/3/1/6/131637553/154234ecb.pdf
    • http://files.ateacherofbeing.com/uploads/1/3/1/4/131437454/rojupo.pdf
    • http://files.tuxcattreasures.com/uploads/1/3/0/7/130776503/75d67b93f33e.pdf
    • http://files.centraltexascreation.com/uploads/1/3/0/9/130970003/3df02e.pdf
    • http://files.elizabethtreadwell.com/uploads/1/3/0/7/130740443/fasagufuzel-jagazot-xakezowa-dejopumof.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://cdn.shopify.com/s/files/1/0430/6580/2903/files/ropugubajofolotuzeximom.pdf
    • https://cdn.shopify.com/s/files/1/0433/0625/4504/files/gifodagonugixisibegofun.pdf
    • https://cdn.shopify.com/s/files/1/0432/1493/0084/files/kg_175d_manual.pdf
    • https://cdn.shopify.com/s/files/1/0444/4710/5191/files/date_class_c.pdf
    • https://cdn.shopify.com/s/files/1/0433/4249/5895/files/denafanasareto.pdf
    • https://cdn.shopify.com/s/files/1/0432/6300/0734/files/46708541798.pdf
    • https://cdn.shopify.com/s/files/1/0428/8774/1607/files/15652174428.pdf
    • https://cdn.shopify.com/s/files/1/0440/8508/4310/files/zofujopolafafiloliper.pdf
    • https://cdn.shopify.com/s/files/1/0435/1967/2472/files/36089568523.pdf
    • https://cdn.shopify.com/s/files/1/0432/5595/5613/files/xikijebusepakuxuruvota.pdf
    • https://cdn.shopify.com/s/files/1/0430/3428/0099/files/bonepebemunanewujepil.pdf
    • https://cdn.shopify.com/s/files/1/0429/1896/9507/files/61796280518.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/81599599528.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/sivezijikok.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001262f.bin
6cec027535b4f808fe0f361763c24d10d06753d56abd24d0de79465d57f40531		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1262F 4988 bytes
font_01_sfnt_off00013748.bin
9504ddcccbc048e2f5c37043c87724d7dae28b9168e38fb92036421c245ef294		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13748 12220 bytes
font_02_sfnt_off00015efc.bin
7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71		 pdf-font-stream PDF embedded font (sfnt) at offset 0x15EFC 4324 bytes

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