Malicious PDF — malware analysis report

Static analysis result for SHA-256 87f499120f54d671…

MALICIOUS

PDF

50.1 KB Created: 2020-08-22 03:31:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bd9dd40b2315166e1e6f8143c85f2442 SHA-1: 58afb549b1c5a931cab8b3f389d38286b53b857c SHA-256: 87f499120f54d67108feaedad3d8435e33df23d72c5e7e129a55874c35c661f4
150 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains text related to 'Sakhi telugu movie songs free 320kbps' and the malicious URL, suggesting a lure for users seeking media downloads. The PDF also exhibits characteristics of a link farm, with numerous embedded URLs, many hosted on 'cdn.shopify.com', which are likely used to obscure the final malicious destination.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.com/pify?keyword=sakhi+telugu+movie+songs+free++320kbps
    • http://files.creativeplansandservices.com/uploads/1/3/2/6/132682124/vusuw_tevakasejor_bilazudozo.pdf
    • http://files.golfcarsunlimitedlakecharles.com/uploads/1/3/1/4/131438392/4281009.pdf
    • http://bimusumal.stjosephschooltrenton.com/uploads/1/3/1/6/131636948/3ea883549aea7.pdf
    • https://cdn.shopify.com/s/files/1/0428/2767/7852/files/sawuxazibobivekaruje.pdf
    • https://cdn.shopify.com/s/files/1/0434/8870/6717/files/wav_to_youtube.pdf
    • https://cdn.shopify.com/s/files/1/0452/7711/8625/files/free_fire_battle_royale_pc.pdf
    • https://cdn.shopify.com/s/files/1/0430/6475/4325/files/24393995886.pdf
    • https://cdn.shopify.com/s/files/1/0438/2598/7734/files/dupanepufepefifosulaxegu.pdf
    • https://cdn.shopify.com/s/files/1/0440/9769/9992/files/skullgirls_endless_beta.pdf
    • https://cdn.shopify.com/s/files/1/0437/0602/4101/files/how_to_make_sea_lanterns_in_minecraft.pdf
    • https://cdn.shopify.com/s/files/1/0430/8749/5321/files/xibowu.pdf
    • https://cdn.shopify.com/s/files/1/0434/2172/8930/files/raduzupixizibinutu.pdf
    • https://cdn.shopify.com/s/files/1/0464/9805/4312/files/hotel_del_luna_ost_iu.pdf
    • https://cdn.shopify.com/s/files/1/0432/4425/7442/files/48597391992.pdf
    • https://cdn.shopify.com/s/files/1/0428/4783/0183/files/zogalipinofoves.pdf
    • https://cdn.shopify.com/s/files/1/0437/5733/8776/files/64037786711.pdf
    • https://cdn.shopify.com/s/files/1/0429/3709/0211/files/54378449677.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_off000084aa.bin
00283ec66144e9d3a523113019fcb0e52aa04c1ad0e1b0af34fe12e0d9d08e6f
pdf-font-stream PDF embedded font (sfnt) at offset 0x84AA 6120 bytes
font_01_sfnt_off0000994f.bin
d3fafa93bd05490925b78a1602f1f1cdf88f5313a8864d30a75217f66cd2624a
pdf-font-stream PDF embedded font (sfnt) at offset 0x994F 9864 bytes