Malicious PDF — malware analysis report

Static analysis result for SHA-256 d815e3d85638de0b…

MALICIOUS

PDF

43.2 KB Created: 2020-09-12 23:39:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e847604d5b3fe8b45f72b393ce200c57 SHA-1: 37f5024dcf99f18e71d22306db608fc769e5d27a SHA-256: d815e3d85638de0b1714d42b90c223440bc6f0658e7f9128e496ee061cd9f724
154 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, including a critical redirector link to 'https://ttraff.link/wix?keyword=sanam+teri+kasam+song+download+pagalworld+djpunjab'. This indicates a social engineering attempt to lure the user to a malicious site, likely for phishing or malware distribution. The presence of a large number of external PDF links also suggests a link farm for SEO manipulation or to host further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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.link/wix?keyword=sanam+teri+kasam+song+download+pagalworld+djpunjab
    • http://files.opus48choir.co.uk/uploads/1/3/0/7/130739022/solegokawazexel.pdf
    • http://vajapa.gentlemansmaven.com/uploads/1/3/1/6/131637814/sinogudafubowek.pdf
    • http://menev.fresnohair.com/uploads/1/3/0/7/130740597/db0b6472.pdf
    • http://zakefiru.hookedbylynn.com/uploads/1/3/0/7/130776824/7037105.pdf
    • http://wopeduwad.denimxbonnie.com/uploads/1/3/0/8/130814340/4967605.pdf
    • http://files.tonibrannan.com/uploads/1/3/0/8/130813667/zimotenebake.pdf
    • http://files.pathwayseducationalconsultingnc.com/uploads/1/3/1/4/131482826/fopinefezotik.pdf
    • https://cdn.shopify.com/s/files/1/0434/7451/8180/files/65535632466.pdf
    • https://cdn.shopify.com/s/files/1/0431/0636/9703/files/tuxobagopaloz.pdf
    • https://cdn.shopify.com/s/files/1/0437/6094/3258/files/647184493.pdf
    • https://cdn.shopify.com/s/files/1/0429/4865/7318/files/marie_antoinette_serial_killer.pdf
    • https://cdn.shopify.com/s/files/1/0433/3332/0872/files/avatar_2009_dual_audio_movie.pdf
    • https://static.usrfiles.com/ugd/c3548c_ad336c8c444c463faa6d7139290f96f9.pdf
    • https://static.usrfiles.com/ugd/6df952_654e3e8792c3426b94f5f708e60b9fea.pdf
    • https://static.usrfiles.com/ugd/de9003_07b484f2351e4157ba19fe3207cceb47.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005efb.bin
253e5a48d20783f9d22e3e8de55c4c8b8a0c1bd146dbfdb28e35bb3e77808ef6
pdf-font-stream PDF embedded font (sfnt) at offset 0x5EFB 5756 bytes
font_01_sfnt_off00007287.bin
0901d5c6da011f3588a78af6d1c3fd12cd6949973251516ebf937e5baa03f67d
pdf-font-stream PDF embedded font (sfnt) at offset 0x7287 14536 bytes