Malicious PDF — malware analysis report

Static analysis result for SHA-256 8a9808050c103a59…

MALICIOUS

PDF

199.8 KB Created: 2020-08-18 13:53:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f9cfbd367dfa1ef9186ae2d64e15deb8 SHA-1: f1d2de65879ff9d238e78400aaaa53538f7d0ecb SHA-256: 8a9808050c103a591f7aad44351b52dbc238476d4be6d391e62936bda8f9a551
134 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.cc/pify?keyword=play+store+installieren+apk'. This URL is presented within the document body, disguised as a prompt to install an Android application. This, combined with the 'SE_ADVANCE_FEE_SCAM_LURE' heuristic, indicates the document is designed to trick users into visiting a malicious site, likely for financial fraud. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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.
  • 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.cc/pify?keyword=play+store+installieren+apk In PDF document text
    • http://files.yubakids.org/uploads/1/3/1/8/131871569/7425519.pdfIn PDF document text
    • http://files.firstireton.com/uploads/1/3/1/3/131379398/sonoronagi_kedek_vabom_kasigex.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/1/0434/8451/2406/files/85408348124.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3197/8403/files/shear_force_and_bending_moment_calculations.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6360/6429/files/du_b._ed_entrance_syllabus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4256/0405/files/93534970934.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8049/9879/files/vugadotilel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8760/9497/files/5218461515.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8280/9508/files/76212463483.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7870/4545/files/bayanat_maulana_tariq_jameel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7546/0515/files/laryngospasm_in_anesthesia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9480/1568/files/jezowekibijogobigigu.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002d9e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D9E0 4980 bytes
SHA-256: ef85d677a8b55a126152d0676261236da075b1e99348304b52e91f442f49e26a
font_01_sfnt_off0002eae8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EAE8 11704 bytes
SHA-256: 74d4e2fbb94dfc328f63b38b4dfeeb065d59782348d5ffab4c1158a1292335b7