Malicious PDF — malware analysis report

Static analysis result for SHA-256 47bb4b8b942026ab…

MALICIOUS

PDF

35.9 KB Created: 2020-08-24 03:46:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3aa1244c12cd4fef2dcb4e8b30e1e4c8 SHA-1: c78d81553810ed8de63f4a25648de83d783e9024 SHA-256: 47bb4b8b942026ab162df07b403e85e374c9440b546f484603f2f38db284bd8d
128 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded links, many of which point to benign Shopify URLs, but one critical heuristic identified a link to a known malicious redirector. The document body, though heavily obfuscated, contains text that appears to be a lure for 'Rtl60. bpl windows 7' and includes the malicious URL. This suggests the document is designed to trick users into clicking the malicious link, likely leading to further malware download or exploitation.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=rtl60.+bpl+windows+7
    • http://files.reginainkandtoner.ca/uploads/1/3/1/4/131438348/3721047.pdf
    • http://files.gladwinfamilychiro.com/uploads/1/3/2/6/132696335/87967ca55b6.pdf
    • https://cdn.shopify.com/s/files/1/0432/9802/9733/files/appsc_group_2_syllabus_2016.pdf
    • https://cdn.shopify.com/s/files/1/0428/5235/2156/files/cannibals_all.pdf
    • https://cdn.shopify.com/s/files/1/0433/5891/2662/files/80103233761.pdf
    • https://cdn.shopify.com/s/files/1/0428/2161/5772/files/aiag_msa_manual_3rd_edition.pdf
    • https://cdn.shopify.com/s/files/1/0428/2191/0694/files/povutubotabodobigibujak.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gowavofopinesifaremoka.pdf
    • https://cdn.shopify.com/s/files/1/0448/3589/7505/files/creative_resume_format_in_word_free.pdf
    • https://cdn.shopify.com/s/files/1/0433/9020/6117/files/bootstrap_login_register_template_free.pdf
    • https://cdn.shopify.com/s/files/1/0429/0707/4723/files/autodesk_revit_architecture_essentials.pdf
    • https://cdn.shopify.com/s/files/1/0461/6814/6072/files/avatar_2_trailer_2020.pdf
    • https://cdn.shopify.com/s/files/1/0431/5886/4028/files/5e_cleric_spell_list.pdf
    • https://cdn.shopify.com/s/files/1/0464/6122/3080/files/solamente_una_vez_agustin_lara.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_off00004eae.bin
867af4353d75e7bb2d6fc27ce5ae13851b30252db6214b6e079c9995ddc8f817
pdf-font-stream PDF embedded font (sfnt) at offset 0x4EAE 5296 bytes
font_01_sfnt_off000060d5.bin
5916e4c79c243121f77715ef9b0cc3015f1d049187fcdc5ddf4d67ed9a95581f
pdf-font-stream PDF embedded font (sfnt) at offset 0x60D5 10100 bytes