Malicious PDF — malware analysis report

Static analysis result for SHA-256 4d7a47e88778789e…

MALICIOUS

PDF

45.1 KB Created: 2020-08-05 02:55:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: db8c378d89203532ca5df088c84a06c4 SHA-1: 62b52deb97ad25693460ae4ffd2904241509b090 SHA-256: 4d7a47e88778789e201fab989ed0190a7fdc0228f96052ae299ba0016dfd2145
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file was flagged as malicious by an ML classifier and contains a critical heuristic indicating it links to known malicious redirector infrastructure. It also exhibits characteristics of a PDF link farm, with numerous embedded URLs pointing to external resources. The primary malicious URL identified is https://ttraff.com/pify?keyword=akuntansi+sektor+publik+pdf, which is likely used to funnel victims 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=akuntansi+sektor+publik+pdf In PDF document text
    • http://sevenij.infantvision.org/uploads/1/3/0/7/130776449/5ca4f47c43.pdfIn PDF document text
    • http://files.glacierpilotslegacy.com/uploads/1/3/1/4/131406592/rijob-nijej.pdfIn PDF document text
    • http://files.myquotesforlife.com/uploads/1/3/0/7/130775232/sizuki_zoxalaximajef.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://cdn.shopify.com/s/files/1/0431/0306/0128/files/95943150533.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7301/0845/files/rujudilovupunokixefo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1512/6685/files/ls_dyna_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8904/3358/files/11930568780.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8475/9711/files/nivaxizasemoferebilerukaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/36281161478.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7298/8071/files/wuramanef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1555/2674/files/jalowevibobigitofijikori.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3310/0439/files/darujatawemotuvubezolop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9648/2727/files/haynes_the_bike_book_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3532/8663/files/73168679536.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

Related samples 5

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000066be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66BE 5112 bytes
SHA-256: 9391568bcb4357b4dc402d3c1c9660d6a47a80f7c89969ef4f2966ef9b8a22ce
font_01_sfnt_off00007822.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7822 9820 bytes
SHA-256: 9892b658af392021181d8fc2d05dd4726fb485ad0caeacacfbd4918ec20014f8
font_02_sfnt_off000099b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x99B1 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

Open this report in the interactive analyzer, or submit your own file for analysis.