Malicious PDF — malware analysis report

Static analysis result for SHA-256 b53b2277e52aba73…

MALICIOUS

PDF

55.8 KB Created: 2020-08-22 21:58:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7136c83f315078430347dfa90579758b SHA-1: db83aebdf85a5b38b9ff8b2a96b877808cd1e83d SHA-256: b53b2277e52aba739ccdc8a990ed44276802c46e9eec4e758829dafc644e92d8
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a heuristic firing for a malicious redirector link, specifically pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains a URL that appears to be a lure related to 'Alia bhatt songs'. The file also exhibits characteristics of a link farm, with numerous external PDF links, many hosted on Shopify. The primary malicious IOC is the redirector URL, which likely leads to further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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.com/pify?keyword=alia+bhatt+songs++bestwap In PDF document text
    • http://files.carrollcountydentistry.com/uploads/1/3/0/7/130775432/bawebapi.pdfIn PDF document text
    • http://files.life-mdinc.org/uploads/1/3/2/7/132712093/1987969.pdfIn PDF document text
    • http://vilepajek.liquidsunshinedesigns.net/uploads/1/3/1/3/131383841/9401341.pdfIn PDF document text
    • http://texav.cammcdonaldphoto.com/uploads/1/3/0/8/130874493/dadiferixux_ladajokol.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2270/5055/files/30137918948.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0451/8179/6503/files/polymers_class_12_cbse_notes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4166/0826/files/15307710568.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2402/2677/files/duvonirofoligof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9664/6556/files/printable_august_calendar_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2953/4632/files/75504443584.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9459/8047/files/vagesijinemodogebexar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3102/6071/files/gold_leaf_sheets_makeup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4214/3389/files/kamevavojozusip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9795/6256/files/xujopaziwezamelule.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3963/8179/files/bejarolegisesoxixopusopi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2252/4326/files/97989333247.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2945/5271/files/badewutoxi.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000069e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69E9 5208 bytes
SHA-256: 61ca7f95443c60d1f92a5c857b0847e6c06d3cafd16a39ca8b7e6f90daf7cdd6
font_01_sfnt_off00007b9c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B9C 6216 bytes
SHA-256: 5a2547bdc989e6c3bec5f94445fedaf6df3afe73c706236c9086e59ddef531a4
font_02_sfnt_off00008cfd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8CFD 15388 bytes
SHA-256: a7315495073846bd7b1cc697f30ef51f85534a34e91b78ca2ec40eaf9e8db6e7
font_03_sfnt_off0000bd06.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBD06 16036 bytes
SHA-256: 149cab45689013e99d1aa520d2e5234663aa5d8577b6aae5e423b5d60aeda4c1