Malicious PDF — malware analysis report

Static analysis result for SHA-256 32a911aa56a74606…

MALICIOUS

PDF

42.4 KB Created: 2020-08-05 15:54:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 900ef2be7fb3a0e34116cf5c88e3b15d SHA-1: eefcd711d6526933da443976766f4a473c412463 SHA-256: 32a911aa56a74606d79d20aa32f1c9afa5671349b3f43d85e254902262f598eb
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.ru/pify?keyword=basketball+history+in+tamil+pdf'. This indicates the document's primary purpose is to redirect users to malicious infrastructure. The file also exhibits characteristics of a link farm, with numerous embedded URLs, many of which are benign Shopify links, but some point to unknown or potentially malicious domains. No scripts were extracted from this sample.

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=basketball+history+in+tamil+pdf
    • http://waveso.cnmiu14nt.org/uploads/1/3/1/4/131406149/7526409.pdf
    • http://files.underthehill.com/uploads/1/3/0/7/130775002/8867801.pdf
    • http://files.reedertranslationservices.com/uploads/1/3/1/0/131069934/togowozalorujixuj.pdf
    • https://cdn.shopify.com/s/files/1/0434/9070/5574/files/5038914043.pdf
    • https://cdn.shopify.com/s/files/1/0435/0764/6630/files/jurux.pdf
    • https://cdn.shopify.com/s/files/1/0434/5122/0120/files/sevonikivexofabusubofuwep.pdf
    • https://cdn.shopify.com/s/files/1/0437/1605/1109/files/69125386051.pdf
    • https://cdn.shopify.com/s/files/1/0434/7455/0950/files/pawubojuzexapukeduvala.pdf
    • https://cdn.shopify.com/s/files/1/0432/7076/6750/files/javelijedawi.pdf
    • https://cdn.shopify.com/s/files/1/0435/3887/4532/files/2568578486.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/garul.pdf
    • https://cdn.shopify.com/s/files/1/0434/7346/9597/files/8865554441.pdf
    • https://cdn.shopify.com/s/files/1/0433/2145/8853/files/construction_of_biogas_plant.pdf
    • https://cdn.shopify.com/s/files/1/0437/4380/5594/files/amana_washer_manual.pdf
    • https://cdn.shopify.com/s/files/1/0427/8488/2844/files/xepiritupavotelofekirako.pdf
    • https://cdn.shopify.com/s/files/1/0434/6567/0806/files/41832150385.pdf
    • https://cdn.shopify.com/s/files/1/0430/9309/8660/files/citrix_receiver_ubuntu.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_off0000653f.bin
5d33e99ae2a455854ff283e0b1fba2c2499b6f6f6d684e76e2c71bdfc995ebf7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x653F 5636 bytes
font_01_sfnt_off00007843.bin
bd9c48bf9729d722e182599b77fbd3bdd6154d9bc99fc05a8653fee60ea812a0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7843 10672 bytes

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