Malicious PDF — malware analysis report

Static analysis result for SHA-256 89a552f178e1a6b5…

MALICIOUS

PDF

55.5 KB Created: 2020-08-25 09:01:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7819bda2f9b852e31c5c395961101bdc SHA-1: 87f6c9a52ce86455576fdec4491c12dff5717782 SHA-256: 89a552f178e1a6b586782963e52a01da7e2a9df0f39e2d6a7d8b0687a99d847a
202 Risk Score

Malware Insights

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

This PDF document contains multiple heuristics indicating malicious redirection and a link farm, including a critical finding for a redirector link. The document body, though obfuscated, contains a URL that points to a redirector, likely intended to lead the user to download a malicious application. The presence of numerous PDF links suggests an attempt to manipulate search engine results for malicious purposes.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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.ru/pify?keyword=1998+cam+vintage+camera+apk+indir In PDF document text
    • http://files.neilmckenzieyouthfishingcontest.org/uploads/1/3/1/6/131606127/1963708.pdfIn PDF document text
    • http://lutiso.kgoodies.com/uploads/1/3/2/8/132814930/xawedira.pdfIn PDF document text
    • http://files.isabellefournet.com/uploads/1/3/1/6/131606397/zimeziwob.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/1/0428/9835/8432/files/84113106953.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0709/9558/files/18065972275.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/wanojexabe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1660/1249/files/tujazuro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8184/2341/files/moketozobikubag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9724/2280/files/74852835051.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0011/7928/files/batch_convert_files_to.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9726/8128/files/gudepewupetotudobam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4420/8797/files/xatiwukiwanirejo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6084/7004/files/experiencing_mis_5th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0609/1673/files/roblox_exploits_for_mac.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1406/0189/files/wivun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1733/8005/files/http_azaforum_com_patchs_2058w.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

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005eb7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EB7 6588 bytes
SHA-256: 4e1a9c4cb32f1bc4ff176ae4dc1460c31b2d267bf2def0252f23ad2731e7be72
font_01_sfnt_off00006eff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6EFF 3064 bytes
SHA-256: 0b5e2232e287906fa69f7cdc51ab19c8c92147b2e4fba8c5edcc65ed17d50ef2
font_02_sfnt_off000079ca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x79CA 5612 bytes
SHA-256: 05ae2645af7ad3bea8d07db208ea5f096dae13cf62fe61ba773ab8602497f94e
font_03_sfnt_off00008ccf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8CCF 1852 bytes
SHA-256: c879d4b0210e847162f2c6d686728d124bd1d841235a0c83932700cac93a3561
font_04_sfnt_off000095c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x95C1 10684 bytes
SHA-256: 9203baf713a14d9059a1afa6b1ec3b857d6f8e7a19a3ce39f166d990c4012302
font_05_sfnt_off0000ba76.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBA76 16136 bytes
SHA-256: f086b88447a946c61ffce955927b196beea3a942eae13b03f33c4a2782dddfd3

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