Malicious PDF — malware analysis report

Static analysis result for SHA-256 10732fde6f687458…

MALICIOUS

PDF

64.6 KB Created: 2020-08-14 23:15:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 75e7723ea4351f70c8f4df3aa32951be SHA-1: c3d35b43b810c6300d28ad62388f650496dc375b SHA-256: 10732fde6f687458a91778b50f7c0a5e7bac74eb7c4edac0c419a824458d3fe0
194 Risk Score

Malware Insights

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

The PDF contains embedded links pointing to a known malicious redirector, ttraff.com, which is designed to lure users with a 'free download' phishing scheme. The document body, though heavily obfuscated, contains the redirector URL and references to 'eng report definition', suggesting a pretext for the malicious link. The presence of numerous external PDF links further supports the SEO link farm heuristic, indicating a campaign to drive traffic to potentially malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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=eng+report+definition In PDF document text
    • http://files.alteredfive.com/uploads/1/3/2/6/132681931/2306248.pdfIn PDF document text
    • http://files.mtnspinweave.org/uploads/1/3/0/7/130739419/247dba6ea7e70ce.pdfIn PDF document text
    • http://maxun.nextstepsdaycare.net/uploads/1/3/1/3/131398020/db1531e182.pdfIn PDF document text
    • http://files.thoughtfulfilmrants.com/uploads/1/3/2/7/132740270/pirusogabidef.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.opentle.orgIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8933/7256/files/bhagavad_gita_chapter_1_in_english.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3633/4501/files/kubodibiwapagubuvepo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/fezusagofetivori.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2036/9576/files/sigozajexijefi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6364/7131/files/koluxurenurununebuw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/70277109097.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wososopozabe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4896/7061/files/wirelose.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5057/3724/files/macklemore_the_heist_zip.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://www.gnu.org/licenses/gpl.htmlIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000729b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x729B 4256 bytes
SHA-256: 8dc356dca816a0b16a6ca716c3a1f75291a29d1e7f2b4b391859db4edf27f0fe
font_01_sfnt_off000081a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x81A8 4532 bytes
SHA-256: 9f226dbd08f46e9b81e80ca14cd94b16976e2ae34218cd83860ae773216855f5
font_02_sfnt_off0000910d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x910D 8560 bytes
SHA-256: cb69658e1f52e01aa159683abf284d6a375828d481a5efc381e6a12390624a18
font_03_sfnt_off0000a8ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA8AC 10976 bytes
SHA-256: fdabe8741a5647fb3f936ad3a40a912a91f5d9c0993ddca4f5861f95a182faae
font_04_sfnt_off0000cd17.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD17 17276 bytes
SHA-256: d21ca3938f64cd3f53be3daf29bf11fb68c9371b8e442c103dd523357b1fb765
font_05_sfnt_off0000e617.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE617 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361