Malicious PDF — malware analysis report

Static analysis result for SHA-256 be1e24a1cdbb053b…

MALICIOUS

PDF

61.5 KB Created: 2020-09-10 03:53:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a55bd126c90df672b214e243059bfd60 SHA-1: c3c1047b2a923be3cbe7d836b08e2707159ea44c SHA-256: be1e24a1cdbb053b85aca09d0190b71747a163d1ab4c9274cfa2da17b82e9535
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a link farm hosted on Shopify. One of these links redirects to a known malicious infrastructure at ttraff.club. This suggests the document is designed to drive traffic to malicious sites, likely for phishing or malware distribution. No scripts were extracted from this sample.

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.club/wix?keyword=nitrogen+oxides+formation+combustion In PDF document text
    • http://files.high5communicationresources.com/uploads/1/3/1/4/131406537/6fbcc6d24052.pdfIn PDF document text
    • http://files.sheep.education/uploads/1/3/0/7/130775654/fesil_morokumujudaj_vokiwufokubufov.pdfIn PDF document text
    • http://fepufuki.wholeheartedpt.co.uk/uploads/1/3/1/4/131407408/75a6453916efe.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/1/0434/4374/9029/files/z390_aorus_pro_wifi_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1266/9089/files/dukulakav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0523/8692/files/1900984482.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7727/1713/files/honda_accord_2013_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/test_1879eb6a-339e-4d45-a409-571cd94a4742.pdf?v=1594212285In PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8764/3303/files/girudibuge.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8904/3362/files/besm_d20_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8938/5879/files/nafopibupuguridesomumaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8421/8532/files/questions_and_answers_in_english_language.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00009b10.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9B10 5488 bytes
SHA-256: 55955a31cf000f28dd4b78fc57f32be88e610dd89a90f85ecb8245e7776501dd
font_01_sfnt_off0000adb2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xADB2 11044 bytes
SHA-256: d8befcd5bdfe3bb4d94c1c6fed04cd46e35736210225fd08945e598f2e49fbff
font_02_sfnt_off0000d38f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD38F 16180 bytes
SHA-256: cd9af048b6191d1ac9842b8b620db4856963a34f9a4df3f0e5d30922d6139eca