Malicious PDF — malware analysis report

Static analysis result for SHA-256 23f76f0d011b7ad8…

MALICIOUS

PDF

52.1 KB Created: 2020-08-04 07:03:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7d0092d33f878b48ff023b1e64cab063 SHA-1: 3a02e20b6bc4b1f934371ab32c700909c3745f7c SHA-256: 23f76f0d011b7ad81e6a7b603b10241238a945bf976c4e544b887dddc5b3d612
120 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 external resources. One critical heuristic identified a malicious redirector link (https://ttraff.cc/pify?keyword=makalah+daulah+abbasiyah+pdf), indicating an attempt to direct users to harmful content. Another heuristic flagged the document as a link farm, suggesting a tactic to artificially inflate search engine rankings or distribute malicious links broadly. The presence of numerous PDF links, including those hosted on Shopify, further supports the link farm detection.

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=makalah+daulah+abbasiyah+pdf
    • http://bawemi.rustnj.com/uploads/1/3/2/6/132681504/mulivitedujejas.pdf
    • http://files.inclusionatwork.net/uploads/1/3/2/6/132681579/9199572.pdf
    • http://files.shaun-evans.com/uploads/1/3/0/8/130873851/8285699.pdf
    • http://files.compassionatesoulscounseling.com/uploads/1/3/0/9/130969172/542730.pdf
    • http://files.balofsk9academy.com/uploads/1/3/1/6/131606502/sadotes.pdf
    • https://cdn.shopify.com/s/files/1/0433/0032/3478/files/dedef.pdf
    • https://cdn.shopify.com/s/files/1/0433/4364/2792/files/perl_interview_questions_and_answers.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/vibemegabixowosepabotabux.pdf
    • https://cdn.shopify.com/s/files/1/0432/7358/4793/files/fall_out_boys_immortals_mp3.pdf
    • https://cdn.shopify.com/s/files/1/0433/9515/4070/files/37758706356.pdf
    • https://cdn.shopify.com/s/files/1/0429/0802/4985/files/afro_blue_real_book.pdf
    • https://cdn.shopify.com/s/files/1/0433/8617/5651/files/tim_keller_every_good_endeavor.pdf
    • https://cdn.shopify.com/s/files/1/0429/8558/6841/files/dikudilefewixemamowiragul.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/46605756913.pdf
    • https://cdn.shopify.com/s/files/1/0435/7901/5327/files/25404904114.pdf
    • https://cdn.shopify.com/s/files/1/0433/6871/0294/files/tropical_cuties_nude.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/96989945255.pdf
    • https://cdn.shopify.com/s/files/1/0434/9224/5666/files/limirixulu.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_off0000825e.bin
9a83eb4c3fb3324a20b25ba8e6d8ea6feb0c4a052d00a276a9d6f4cef2bc32c3
pdf-font-stream PDF embedded font (sfnt) at offset 0x825E 4812 bytes
font_01_sfnt_off000092b9.bin
62f72ca8d7aed1711efd421cedeb87163b00b009dbbbd1a2ca1f731b14f67c17
pdf-font-stream PDF embedded font (sfnt) at offset 0x92B9 10084 bytes
font_02_sfnt_off0000b53f.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378
pdf-font-stream PDF embedded font (sfnt) at offset 0xB53F 4324 bytes