Malicious PDF — malware analysis report

Static analysis result for SHA-256 49c7f67b50352878…

MALICIOUS

PDF

49.6 KB Created: 2020-08-12 17:40:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 72742353cce89475083262caeab0ea7d SHA-1: 3be4ff0e9e69f3b4c6a7b566edff8682e6b69e0d SHA-256: 49c7f67b503528785031d3aa07cda1e776de74fe41d4d3baee4f1b7a7407f862
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains multiple embedded links, with one heuristic specifically identifying a malicious redirector. The document body, though heavily obfuscated, contains the URL that is also flagged as a malicious redirector. This suggests the primary purpose is to lure the user to a malicious site. No scripts were extracted, limiting the ability to determine further payload delivery or persistence mechanisms.

Heuristics 3

  • 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.
  • 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=the+thrill+is+gone+chords+pdf
    • http://files.westernshirtsnz.com/uploads/1/3/2/8/132814306/6310191.pdf
    • http://files.sarahsaesthetics.com/uploads/1/3/0/9/130969370/vinizu-nozibat-jukitawufoxene-gamifug.pdf
    • http://files.2twelve.beer/uploads/1/3/1/6/131606261/zevuverebufenopisox.pdf
    • http://files.bostonbulldogsrunning.com/uploads/1/3/2/6/132681767/pajadopoganegad-rukamitajewu.pdf
    • http://kukuv.capefearmusicteachers.org/uploads/1/3/1/3/131381204/rukagisazot.pdf
    • https://cdn.shopify.com/s/files/1/0432/5759/4011/files/39553964508.pdf
    • https://cdn.shopify.com/s/files/1/0430/1481/5901/files/loluretukepulokomovako.pdf
    • https://cdn.shopify.com/s/files/1/0433/0346/9221/files/42634223419.pdf
    • https://cdn.shopify.com/s/files/1/0432/4671/5040/files/etc_nginx_sites-_available_example._com.pdf
    • https://cdn.shopify.com/s/files/1/0429/5491/5993/files/zivolafadu.pdf
    • https://cdn.shopify.com/s/files/1/0433/0127/3758/files/ditilukamomunurinuwu.pdf
    • https://cdn.shopify.com/s/files/1/0430/6914/5241/files/mezasebema.pdf
    • https://cdn.shopify.com/s/files/1/0430/3136/3747/files/apsrtc_ngos_bus_pass_application.pdf
    • https://cdn.shopify.com/s/files/1/0431/3153/5524/files/70381955721.pdf
    • https://cdn.shopify.com/s/files/1/0429/9338/5633/files/16099874345.pdf
    • https://cdn.shopify.com/s/files/1/0434/8503/6706/files/dafapuxelaroluj.pdf
    • https://cdn.shopify.com/s/files/1/0429/3787/6639/files/fotutezosamizepakiju.pdf
    • https://cdn.shopify.com/s/files/1/0431/3258/4098/files/votefekudibo.pdf
    • https://cdn.shopify.com/s/files/1/0431/5381/7749/files/46188455702.pdf
    • https://cdn.shopify.com/s/files/1/0434/1936/9628/files/conceptual_physics_12th_edition.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006447.bin
d380a91a7051edefb247d952b2f2ca9a724cd84b6d3f4af6f15d974a6d8bd698
pdf-font-stream PDF embedded font (sfnt) at offset 0x6447 5156 bytes
font_01_sfnt_off000075cb.bin
3699ddaef37136be341645b4ea4e3e45076deed49fab7277a68910287e8c0fc2
pdf-font-stream PDF embedded font (sfnt) at offset 0x75CB 14508 bytes
font_02_sfnt_off0000a37d.bin
532315dfdc59b350d447ad91845dd8cc72a836e684f536ab9a4305dc5b53fb8e
pdf-font-stream PDF embedded font (sfnt) at offset 0xA37D 16204 bytes