Malicious PDF — malware analysis report

Static analysis result for SHA-256 df2017f8ab923bef…

MALICIOUS

PDF

43.4 KB Created: 2020-09-21 00:41:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 911a492da90ea7667b30fceed9406f98 SHA-1: 9d4566baaa4b44169d449e761a55b2458f597fbf SHA-256: df2017f8ab923beff56662f9a1defcc672ac678c1684077a9c5c0f31c959a9cd
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a known malicious redirector. The document body text, though partially corrupted, includes the phrase 'Plastic storage cabinets on wheels' and a URL that matches the redirector, suggesting a lure to a phishing or scam page. The presence of numerous external PDF links further indicates a link farm designed to attract traffic.

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.link/wix?keyword=plastic+storage+cabinets+on+wheels
    • http://files.stmarkscocoa.org/uploads/1/3/1/4/131408170/zogipavoworire.pdf
    • http://files.lhsperformingarts.com/uploads/1/3/2/6/132682327/5639969.pdf
    • http://jeduzu.cedarandsageonmain.com/uploads/1/3/1/6/131606349/ribalodorub.pdf
    • http://gijomesa.mysclam.com/uploads/1/3/1/4/131437615/tovet-fizapal-nukoginizabax-kewewi.pdf
    • http://gogavew.theoceanoracle.com/uploads/1/3/1/4/131452890/visupalojo_tonojulajujirik.pdf
    • https://be48d79b-fdd8-40fd-b2f5-c5d7d459d5ad.filesusr.com/ugd/510a18_ddda27571a4e473b88fb539f230c442a.pdf?index=true
    • https://166b855e-ca85-44d9-9417-8c407d59a32b.filesusr.com/ugd/5be868_26b156670d44496ab85ce80707c5a72e.pdf?index=true
    • https://8aed1182-7ebb-4969-8982-a46101802eaf.filesusr.com/ugd/ae059d_e4247071a25b43cbbfd389ecf3cdb99d.pdf?index=true
    • https://cdn.shopify.com/s/files/1/0431/0351/8887/files/cambridge_english_dictionary_download.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/88075317933.pdf
    • https://cdn.shopify.com/s/files/1/0434/1124/3162/files/surulupifodujolusuxot.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/pujipipokumamidepuw.pdf
    • https://cdn.shopify.com/s/files/1/0432/2027/1259/files/fullmetal_alchemist_brotherhood_episode_1.pdf
    • https://8194447c-d850-4cab-8822-90cec00a06f5.filesusr.com/ugd/592671_683f03309bc4462c96c76c543e4cb012.pdf?index=true
    • https://11d57429-07bc-4868-a0ce-61ff9e5a5037.filesusr.com/ugd/3402b1_de02eaa11bfe458988b84208fe9a6597.pdf?index=true
    • 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_off00006b6c.bin
2680e399f8234dde37cde422e11d2c27ce4ae109e46d985848a5958d92d252ea
pdf-font-stream PDF embedded font (sfnt) at offset 0x6B6C 5292 bytes
font_01_sfnt_off00007d75.bin
be474eb2ceb8382cfd248b60bb62a482d276a568fd1df0d3326e9225216171b1
pdf-font-stream PDF embedded font (sfnt) at offset 0x7D75 10396 bytes