Malicious PDF — malware analysis report

Static analysis result for SHA-256 3999569b70d42914…

MALICIOUS

PDF

44.1 KB Created: 2020-08-23 07:32:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7d0fcc86db662197cec9405d960fc33b SHA-1: 28a6e69e535116e1e9569c8796fc0ddc05c687b8 SHA-256: 3999569b70d4291467539970771bead5cc381b761be921e4c3e03684b1190bdf
120 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector, ttraff.com, which is disguised as a download for '365scores sports live scores apk'. The document body also contains this URL and a reference to wkhtmltopdf, suggesting it was generated programmatically. The presence of a PDF link farm further indicates malicious intent, likely to distribute malware or phish for credentials. 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.com/pify?keyword=365scores+sports+live+scores+apk
    • http://widajufi.depthstiny.com/uploads/1/3/0/8/130814579/jajuvabegojenoj.pdf
    • https://cdn.shopify.com/s/files/1/0431/3337/0522/files/febuzijomukopofabived.pdf
    • https://cdn.shopify.com/s/files/1/0434/0531/2156/files/1910807297.pdf
    • https://cdn.shopify.com/s/files/1/0428/8957/6601/files/peculiar_institution.pdf
    • https://cdn.shopify.com/s/files/1/0451/3647/8361/files/materi_descriptive_text.pdf
    • https://cdn.shopify.com/s/files/1/0431/4451/1645/files/wikokogovajire.pdf
    • https://cdn.shopify.com/s/files/1/0432/0467/3699/files/banafefapepeg.pdf
    • https://cdn.shopify.com/s/files/1/0450/0973/1734/files/child_development_and_pedagogy_in_urdu.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/58829080427.pdf
    • https://cdn.shopify.com/s/files/1/0433/4619/8683/files/radorofidilugizo.pdf
    • https://cdn.shopify.com/s/files/1/0431/7678/8117/files/68799099672.pdf
    • https://cdn.shopify.com/s/files/1/0430/9647/3749/files/livecd_windows_7.pdf
    • https://cdn.shopify.com/s/files/1/0432/8462/7624/files/25998118451.pdf
    • https://cdn.shopify.com/s/files/1/0461/9829/2643/files/sedifasurejedozesuweloj.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_off00005efb.bin
42961f06da0044e677f184015d9b98fb41a940c9aec31897d9707d872e905047		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5EFB 5080 bytes
font_01_sfnt_off00007041.bin
f50be30d7392503382cd3621e45643c954395ab8fa9232cb2187219ede6c88c0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7041 10880 bytes
font_02_sfnt_off000094fc.bin
ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230		 pdf-font-stream PDF embedded font (sfnt) at offset 0x94FC 4324 bytes

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