Malicious PDF — malware analysis report

Static analysis result for SHA-256 242d868dd04fb855…

MALICIOUS

PDF

51.1 KB Created: 2020-08-24 21:20:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3141be7e3062753b355ac3a45d69acde SHA-1: 516d1fcb03b3b06e5fd495e1732d661107448563 SHA-256: 242d868dd04fb855a9344c469edfa6576e852e5a65fe833752d06e6d56f3b142
152 Risk Score

Malware Insights

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

The PDF file contains numerous links, with a critical heuristic firing indicating a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains text related to 'Ableton live crackeado 2019' and the URL https://ttraff.cc/pify?keyword=ableton+live++crackeado+2019, suggesting a lure for cracked software. The presence of a large number of PDF links, many hosted on Shopify, further supports the SEO link farm tactic.

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.cc/pify?keyword=ableton+live++crackeado+2019
    • http://xinepeke.bamfordgodfrey.com/uploads/1/3/0/8/130874435/fajisibimeroz_zabasawo_newile.pdf
    • http://files.sscpn.org/uploads/1/3/1/1/131164185/8699612.pdf
    • http://jimenifib.andilockemears.com/uploads/1/3/2/8/132814930/lilezosos.pdf
    • https://cdn.shopify.com/s/files/1/0432/4560/0931/files/85424270676.pdf
    • https://cdn.shopify.com/s/files/1/0444/3389/9686/files/ximum.pdf
    • https://cdn.shopify.com/s/files/1/0431/5391/6060/files/mowapamokonedogukazag.pdf
    • https://cdn.shopify.com/s/files/1/0434/8814/9654/files/ripodavom.pdf
    • https://cdn.shopify.com/s/files/1/0438/8788/6488/files/26991320810.pdf
    • https://cdn.shopify.com/s/files/1/0430/3942/4669/files/66409906695.pdf
    • https://cdn.shopify.com/s/files/1/0433/1290/6405/files/nuwitetemalidebivor.pdf
    • https://cdn.shopify.com/s/files/1/0432/3403/3824/files/39441950588.pdf
    • https://cdn.shopify.com/s/files/1/0428/3236/3676/files/zipuzopelujakafabepudukal.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006544.bin
46655ba0067a1e0835fa39fb8fab71ad025605494c7f1fadc6b097e775cdd37c
pdf-font-stream PDF embedded font (sfnt) at offset 0x6544 5492 bytes
font_01_sfnt_off000077fa.bin
f9b96217bfe73facda501b41eade1318fd158e80114c22d55d2061cefc0186f8
pdf-font-stream PDF embedded font (sfnt) at offset 0x77FA 4692 bytes
font_02_sfnt_off00008653.bin
cc5170e4b692603a7e0ab5e4e06d3da1345373e20b1d448da6f1c82ab6bb6b2b
pdf-font-stream PDF embedded font (sfnt) at offset 0x8653 10408 bytes
font_03_sfnt_off0000aa1d.bin
aab9235fe93fd402f11ae543027bd3d63917f828bdaffd5bcf59c3f8350d9d33
pdf-font-stream PDF embedded font (sfnt) at offset 0xAA1D 16128 bytes