Malicious PDF — malware analysis report

Static analysis result for SHA-256 d015495133629ba9…

MALICIOUS

PDF

63.3 KB Created: 2020-08-20 13:44:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 41018701c2a4b7a3c9757da6978be464 SHA-1: 0992a912c62b811fdeba8b5a75e827305fe0b947 SHA-256: d015495133629ba9fc459f5514704e14b4c94b958133ef04a9d793b1cacd57ae
120 Risk Score

Malware Insights

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

The PDF contains a link that redirects to a malicious URL, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains text related to a trophy guide, suggesting a lure. The PDF also contains a link farm, as indicated by the PDF_SEO_LINK_FARM heuristic, pointing to multiple PDF files hosted on Shopify. The primary malicious IOC is the redirector URL.

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+last+of+us+scavenger+trophy+guide
    • http://files.kunstzinnigelusters.com/uploads/1/3/1/8/131871859/zunesajesa-kovubeworavi.pdf
    • http://files.conniezator.com/uploads/1/3/1/3/131384573/siriruwedabekur_wiwagelamib_panura.pdf
    • http://files.playsmart.co/uploads/1/3/1/4/131437418/26e027b341.pdf
    • http://tupopa.browndogbiking.com/uploads/1/3/2/7/132740435/vubipopawajifo.pdf
    • https://cdn.shopify.com/s/files/1/0434/7042/2180/files/questes_de_argumentao_lgica.pdf
    • https://cdn.shopify.com/s/files/1/0461/7096/4131/files/congruent_triangles_snowflake_activity_answer_sheet.pdf
    • https://cdn.shopify.com/s/files/1/0432/7541/9812/files/mudaj.pdf
    • https://cdn.shopify.com/s/files/1/0431/6980/8550/files/paguzupurotobam.pdf
    • https://cdn.shopify.com/s/files/1/0429/8758/5699/files/kaluriz.pdf
    • https://cdn.shopify.com/s/files/1/0428/8380/9447/files/bailaras_full_hd_movie.pdf
    • https://cdn.shopify.com/s/files/1/0428/8882/2950/files/vexodarakubas.pdf
    • https://cdn.shopify.com/s/files/1/0430/6511/4775/files/bibiliya_yera_kirundi_1967.pdf
    • https://cdn.shopify.com/s/files/1/0431/9828/3940/files/arabic_to_english_words_meaning.pdf
    • https://cdn.shopify.com/s/files/1/0431/2635/8173/files/tulekivusiwulatoban.pdf
    • https://cdn.shopify.com/s/files/1/0431/4015/3505/files/roxopomukopiga.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_off0000ba53.bin
3405eb2be4dd22df13694eb14e5e8ab478d44a07d84859712103ce14cbe52202
pdf-font-stream PDF embedded font (sfnt) at offset 0xBA53 5528 bytes
font_01_sfnt_off0000cd25.bin
c590526c3000e7ed64c0919dcddaa014e7cdb96ef267f5062eec36b74c96b2c9
pdf-font-stream PDF embedded font (sfnt) at offset 0xCD25 10268 bytes