Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ade00d1af246a03…

MALICIOUS

PDF

46.4 KB Created: 2020-08-05 04:19:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 46656ce9d9a11aae2c2bb1ddd964b681 SHA-1: 6d76d064dc25bc52969ac1f160eeece1d7396417 SHA-256: 9ade00d1af246a036436d012d70ca336809842307c6e2ba5a69ac7e7e7c1cd15
120 Risk Score

Malware Insights

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

The PDF file was identified as malicious due to the presence of a large number of embedded links, many of which point to redirector infrastructure. The primary malicious URL identified is https://ttraff.ru/pify?keyword=sejarah+perkembangan+pendidikan+islam+di+indonesia+pdf. The document body contains garbled text and metadata indicating it was generated by wkhtmltopdf, suggesting it's likely a lure document designed to host a link farm for SEO poisoning or to redirect users to malicious sites.

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.ru/pify?keyword=sejarah+perkembangan+pendidikan+islam+di+indonesia+pdf
    • http://files.jacksonpaintinginc.com/uploads/1/3/1/4/131453302/74e0588d0bd387c.pdf
    • http://files.artsstudentsassociation.org/uploads/1/3/2/6/132682646/labenes-warinog.pdf
    • http://files.theces.org/uploads/1/3/1/3/131380625/b50e24.pdf
    • https://cdn.shopify.com/s/files/1/0432/7030/7995/files/41584059045.pdf
    • https://cdn.shopify.com/s/files/1/0431/2875/0234/files/zamoxusutoditapenogutux.pdf
    • https://cdn.shopify.com/s/files/1/0433/7732/8278/files/37801194028.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/76102764406.pdf
    • https://cdn.shopify.com/s/files/1/0434/8215/3112/files/39959704846.pdf
    • https://cdn.shopify.com/s/files/1/0438/9902/7611/files/ros_gazebo_tutorial.pdf
    • https://cdn.shopify.com/s/files/1/0435/7806/5059/files/fuvojizojeromopirawavixej.pdf
    • https://cdn.shopify.com/s/files/1/0434/1825/5510/files/30609779759.pdf
    • https://cdn.shopify.com/s/files/1/0432/7155/3189/files/15702894985.pdf
    • https://cdn.shopify.com/s/files/1/0435/4709/9290/files/bevewu.pdf
    • https://cdn.shopify.com/s/files/1/0434/9073/8328/files/books_download_free.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_off00006854.bin
2039570a2e3101d5cc4cac1c2d5885e51af80fffce4c4e0c4e6626e0bcf9ec3f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6854 5548 bytes
font_01_sfnt_off00007af8.bin
a0b9af709bd045c994bc165da97182e4d988ec3a4b5f1bb149757f66ce2d5554		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7AF8 10512 bytes
font_02_sfnt_off00009e2e.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9E2E 4324 bytes

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