Malicious PDF — malware analysis report

Static analysis result for SHA-256 1f01ea4539a86080…

MALICIOUS

PDF

61.5 KB Created: 2020-08-21 06:43:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: eeb7666b01aa0246473493836c03937c SHA-1: 0be37682fa7c56f0ae24b892333b6cd598137eda SHA-256: 1f01ea4539a860809af51cf8ca42d679b313714169b3b7735fb07d1e41198c29
202 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=angular+5+admin+template+open+source'. Additionally, it exhibits characteristics of a PDF link farm, with numerous external links, including one to 'https://cdn.shopify.com/s/files/1/0429/4141/5587/files/17016676582.pdf'. The presence of a visual download button lure further supports a malicious intent to trick users into clicking the embedded malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=angular+5+admin+template+open+source In PDF document text
    • http://files.turosmathclass.com/uploads/1/3/2/8/132815118/85ba701b.pdfIn PDF document text
    • http://difukaze.ifbiblechapel.org/uploads/1/3/0/9/130969754/f5be80b3.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/1/0429/4141/5587/files/17016676582.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1612/6625/files/34698820299.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/7711/1701/files/meaning_of_absenteeism.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/61403973964.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3480/3352/files/gakafonozixukerijaxa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3818/6392/files/pibabutudexovemel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0457/3672/2588/files/xigamuvufojixutagonizaki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2141/8147/files/describe_yourself_in_a_few_lines_answer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/gubiwunezekubukezo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7940/1632/files/xokezaviboz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2083/6254/files/79811530328.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
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn 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 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007f71.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F71 6440 bytes
SHA-256: 3d4760ca295192c89086870ebbac49c5a5945404ea6ab57fca452cf2db5f569a
font_01_sfnt_off00008f65.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F65 5508 bytes
SHA-256: d2df990a2a26556e51c0b4c5ae43f6be168a81705c643eca3c9e8a1846ed1c8d
font_02_sfnt_off0000a1f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA1F5 2788 bytes
SHA-256: 9f77a327a94a2440d2f87187da71be9308454e2bce3f62256fd07910d90b17f5
font_03_sfnt_off0000adcf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xADCF 10684 bytes
SHA-256: 7eb77c9020a0ac8641ed5ce0740df28f40e46ec229d2e44e5744c53830eea607
font_04_sfnt_off0000d29d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD29D 16168 bytes
SHA-256: 0216150ac0e5ade23b072752459620ec704bdac01526bfbadd96d51f96873ef3