Malicious PDF — malware analysis report

Static analysis result for SHA-256 fb918f84359b03b3…

MALICIOUS

PDF

55.1 KB Created: 2020-08-05 02:31:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 872f04cda1bef49c5bcff1449a9e0567 SHA-1: 648f388d6a0b166de64fee94fc7adc43071d0bdf SHA-256: fb918f84359b03b33050be58f708141c40e221b8d044015ddaa8772a9f269848
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=negative+effects+of+globalisation+on+culture+pdf'. This indicates the document's primary purpose is to lure the user to a malicious site. Additionally, the PDF exhibits characteristics of a link farm, with numerous embedded URLs, many hosted on Shopify. The document body, though heavily obfuscated, contains the same malicious URL and references to PDF files, reinforcing the redirection attempt.

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=negative+effects+of+globalisation+on+culture+pdf
    • http://files.tickettoridegreatloop.com/uploads/1/3/1/4/131437333/d21f3fdea77aa0f.pdf
    • http://zexapaj.gautengseniors.com/uploads/1/3/1/4/131453598/2609111.pdf
    • http://fuvit.recipes4raisingkids.com/uploads/1/3/1/3/131384169/2d2694db.pdf
    • https://cdn.shopify.com/s/files/1/0431/7849/2062/files/40549802646.pdf
    • https://cdn.shopify.com/s/files/1/0435/3556/4959/files/japoridiwopumurobegagum.pdf
    • https://cdn.shopify.com/s/files/1/0440/8187/3048/files/subject_verb_agreement_collective_nouns_worksheet_with_answers.pdf
    • https://cdn.shopify.com/s/files/1/0435/1783/7467/files/32552606779.pdf
    • https://cdn.shopify.com/s/files/1/0431/2327/7973/files/mamefowosabozitewozamova.pdf
    • https://cdn.shopify.com/s/files/1/0428/7630/5564/files/rozegujeve.pdf
    • https://cdn.shopify.com/s/files/1/0435/8973/0472/files/papofunokulamibe.pdf
    • https://cdn.shopify.com/s/files/1/0432/2931/5229/files/32533260353.pdf
    • https://cdn.shopify.com/s/files/1/0428/2161/5775/files/webebewazavidomomodo.pdf
    • https://cdn.shopify.com/s/files/1/0429/5471/9395/files/zefipu.pdf
    • https://cdn.shopify.com/s/files/1/0428/6126/5062/files/temokad.pdf
    • https://cdn.shopify.com/s/files/1/0429/4216/9244/files/wopipuxonevizegisa.pdf
    • https://cdn.shopify.com/s/files/1/0432/4022/6984/files/99512737993.pdf
    • https://cdn.shopify.com/s/files/1/0429/3092/9827/files/saxox.pdf
    • https://cdn.shopify.com/s/files/1/0429/8627/4967/files/kivowik.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_off0000979e.bin
1cffad3d66551539a7331a1b759fc2beefe2099b0ad57b51ff580b08230a7229
pdf-font-stream PDF embedded font (sfnt) at offset 0x979E 5492 bytes
font_01_sfnt_off0000aa68.bin
2354cf813341da4f0a81588b56e677b6fa3e698a2d213dee065710b817fe1f11
pdf-font-stream PDF embedded font (sfnt) at offset 0xAA68 10500 bytes