Malicious PDF — malware analysis report

Static analysis result for SHA-256 438d30e684debdc9…

MALICIOUS

PDF

46.7 KB Created: 2020-08-23 03:29:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7eeda28eccdbbf08a0b14e932a1a0ec2 SHA-1: a50aa1ff02db4c4b2f88804934c73b898df346ed SHA-256: 438d30e684debdc97bc3230308d63e9ead0bbff3bb1073d1e7a895ad0436d7f7
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link pointing to 'ttraff.com'. The document body, though partially corrupted, contains text related to 'Rti application format in gujarati language' and the malicious URL, suggesting a lure. The PDF also exhibits characteristics of a link farm, with numerous embedded URLs, many hosted on Shopify, likely to obscure the malicious redirector.

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.com/pify?keyword=rti+application+format+in+gujarati+language
    • http://files.parentlednetwork.org/uploads/1/3/2/3/132303238/jibezur.pdf
    • http://bajabuv.cantysbookshopfyshwick.com/uploads/1/3/2/6/132695675/pubodobifugojora.pdf
    • http://files.margateterrapinrescue.org/uploads/1/3/2/7/132740905/ruxid.pdf
    • http://files.uncommongoodcollective.org/uploads/1/3/0/9/130969986/karebugaveka.pdf
    • http://xibame.brcc.myworldrules.com/uploads/1/3/1/8/131856369/jokaxulewajim-mafirora-tumibogan.pdf
    • https://cdn.shopify.com/s/files/1/0432/7663/2217/files/60482470633.pdf
    • https://cdn.shopify.com/s/files/1/0435/9038/5821/files/71001521353.pdf
    • https://cdn.shopify.com/s/files/1/0428/6958/8135/files/bailes_tipicos_de_mexico.pdf
    • https://cdn.shopify.com/s/files/1/0438/6357/2635/files/38413233981.pdf
    • https://cdn.shopify.com/s/files/1/0435/5263/7091/files/buwogokusonuzejan.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/fovurasavelibegesixaga.pdf
    • https://cdn.shopify.com/s/files/1/0429/5049/2316/files/ramuravokamitovot.pdf
    • https://cdn.shopify.com/s/files/1/0438/1881/1552/files/86738578674.pdf
    • https://cdn.shopify.com/s/files/1/0428/1348/9318/files/agorafobia_tratamiento.pdf
    • https://cdn.shopify.com/s/files/1/0433/1044/8798/files/miburamitewuzijiw.pdf
    • https://cdn.shopify.com/s/files/1/0431/6558/1468/files/aadhar_card.pdf
    • https://cdn.shopify.com/s/files/1/0432/3606/5438/files/82032670767.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_off00007886.bin
497c0b3d59d4af276367ac2cf20cfabe3edf8ee566d10df54aec5594f44119c5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7886 5240 bytes
font_01_sfnt_off00008a43.bin
aae511b8d6118b95db8157c033af52e22ce5ce6ec62a2d3381223b9ba6e200f1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8A43 10276 bytes

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