Malicious PDF — malware analysis report

Static analysis result for SHA-256 483eaeebf48581c2…

MALICIOUS

PDF

42.6 KB Created: 2020-08-21 18:10:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 83693f741e27937ba4c0db129544c5cf SHA-1: 56c82d5d552bf6d4d111f766f3c952e333ff8f8f SHA-256: 483eaeebf48581c2db620520a9517c0978fe7eb4ef78f3ba27ad28e2772e89ac
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to a link farm hosted on cdn.shopify.com. One critical heuristic indicates that the PDF links to a known malicious redirector infrastructure. The document body, though heavily obfuscated, contains the URL that leads to this redirector, suggesting a lure to a malicious site. No scripts were extracted from this sample.

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.ru/pify?keyword=astell+kern+cd+ripper+mk2+manual
    • http://files.guidedchildrensadoration.com/uploads/1/3/1/6/131607131/34b0fa7.pdf
    • http://roledose.myinnatehealth.co.za/uploads/1/3/1/4/131409909/1259752.pdf
    • http://files.ricrodriguezfiction.com/uploads/1/3/1/4/131407178/juvalunit.pdf
    • http://files.wallitcreations.com/uploads/1/3/0/9/130969059/xawikimakiposimu.pdf
    • https://cdn.shopify.com/s/files/1/0437/0087/9515/files/php_back_button.pdf
    • https://cdn.shopify.com/s/files/1/0430/0885/2117/files/tudipazarepolumi.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/30106301206.pdf
    • https://cdn.shopify.com/s/files/1/0434/7851/5864/files/ravelawenovamivo.pdf
    • https://cdn.shopify.com/s/files/1/0429/7395/4204/files/11175623574.pdf
    • https://cdn.shopify.com/s/files/1/0440/7332/0600/files/jofadovukovavenina.pdf
    • https://cdn.shopify.com/s/files/1/0428/8220/3811/files/23846398771.pdf
    • https://cdn.shopify.com/s/files/1/0432/5117/1478/files/49621183567.pdf
    • https://cdn.shopify.com/s/files/1/0430/5921/6533/files/getting_things_done_online.pdf
    • https://cdn.shopify.com/s/files/1/0428/5261/4311/files/anywhere_you_go_song.pdf
    • https://cdn.shopify.com/s/files/1/0459/7153/8087/files/lagu_betrand_peto_sahabat_kecil_planetlagu.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_off00005853.bin
1980743977fadce9ad5cb1b59df85e64a5e3543a39e3cc720e6fd0f916adddf4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5853 5404 bytes
font_01_sfnt_off00006a88.bin
406d9c14f76b4e0c27267bc63fa971fc1ebe99cb7b762b0c35436d2afb2f8dd6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6A88 6124 bytes
font_02_sfnt_off00007a71.bin
650fcdf6d5642c4bbf38bb7a0601d317e0b774375d738dd26b5676220d05533b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7A71 10160 bytes

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