Malicious PDF — malware analysis report

Static analysis result for SHA-256 6c002fac64395c59…

MALICIOUS

PDF

42.5 KB Created: 2020-08-20 08:48:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0eec195665be9f17f5192a2d982780ca SHA-1: 76595d08cd626da4b436e0bdae84328748263e4b SHA-256: 6c002fac64395c599fe702121228f98b60f72be73473d0baf4fb9a99fc6260f9
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a link farm with numerous embedded URLs, including one pointing to a known malicious redirector. The document body, though heavily obfuscated, contains a reference to the malicious URL, suggesting an attempt to trick users into clicking it. The ML classifier also strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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=sokka+thangam+songs
    • http://files.paperlessconstruct.com/uploads/1/3/1/3/131379650/fidek-povukoka-kigizoja-defuf.pdf
    • http://files.bergholtheathfc.co.uk/uploads/1/3/0/7/130738998/fumopo.pdf
    • http://files.lappiesinoz.com/uploads/1/3/0/7/130776745/movedevigak.pdf
    • http://files.shadygrace.ca/uploads/1/3/1/8/131858661/4530337.pdf
    • http://files.gaindetalks.com/uploads/1/3/0/8/130874629/dojoja-kefuzegomoli-wadab.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0432/8049/8841/files/47448150124.pdf
    • https://cdn.shopify.com/s/files/1/0433/3246/8904/files/antipyretic_drugs_name_list.pdf
    • https://cdn.shopify.com/s/files/1/0429/6320/6307/files/wobumiwomelewigapape.pdf
    • https://cdn.shopify.com/s/files/1/0428/7106/2684/files/i_77_chevy.pdf
    • https://cdn.shopify.com/s/files/1/0433/2634/1272/files/gemisejadagesezef.pdf
    • https://cdn.shopify.com/s/files/1/0428/1915/8183/files/44261657688.pdf
    • https://cdn.shopify.com/s/files/1/0430/4338/9597/files/87965786110.pdf
    • https://cdn.shopify.com/s/files/1/0457/3210/2310/files/pekuvavifilep.pdf
    • https://cdn.shopify.com/s/files/1/0436/0408/2851/files/a_wrinkle_in_time.pdf
    • https://cdn.shopify.com/s/files/1/0436/3796/4960/files/acute_myeloid_leukemia.pdf
    • https://cdn.shopify.com/s/files/1/0435/0607/3759/files/aristotle_and_dante_discover_the_secrets_of_universe.pdf
    • https://cdn.shopify.com/s/files/1/0431/2875/0241/files/wazevivuvulipekejewibakav.pdf
    • https://cdn.shopify.com/s/files/1/0434/0046/2501/files/pobezuzovikafusosug.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/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006ae3.bin
34d7d739a53f901ee89c8090fe0c95aa54c11ba53038bc1b97efd8718664e72c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6AE3 5140 bytes
font_01_sfnt_off00007c32.bin
d9e5fd941e234001ec9da09b9551132f75e809601d22c63aa402464134a31c25		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7C32 9656 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.