Malicious PDF — malware analysis report

Static analysis result for SHA-256 d4feaceafdb1786e…

MALICIOUS

PDF

43.6 KB Created: 2020-08-08 20:26:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 467313a3c03f4c0d6aaba51819926060 SHA-1: 2b48573058cc8aaf6f3b6a96a69b6c7e3383608b SHA-256: d4feaceafdb1786e6f09cce6bcedd3dfd4c989c8b7cfbae8575cc126823edb89
120 Risk Score

Malware Insights

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

The PDF file exhibits malicious behavior by embedding links to a known malicious redirector (ttraff.com) and a large number of external PDF links, likely forming a link farm for SEO manipulation or further distribution. The document body, though partially corrupted, suggests a theme of "business loan application form sample pdf" to entice users to click the malicious links.

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=business+loan+application+form+sample+pdf
    • http://files.virlinafuture.org/uploads/1/3/0/7/130775465/pozebu_talojokirix.pdf
    • http://tedamina.kasl.us/uploads/1/3/2/6/132681579/ruwibajemud_kunerala.pdf
    • http://files.ridgeandvalleyreptiles.com/uploads/1/3/1/8/131856569/3fdc1cebce.pdf
    • http://files.firefallseffects.com/uploads/1/3/2/6/132681482/4a6dcbc8ef.pdf
    • https://cdn.shopify.com/s/files/1/0431/4490/4855/files/65164796247.pdf
    • https://cdn.shopify.com/s/files/1/0440/5726/4280/files/73910332264.pdf
    • https://cdn.shopify.com/s/files/1/0429/2309/8279/files/nafekawasi.pdf
    • https://cdn.shopify.com/s/files/1/0437/8427/4069/files/wedding_photography_poses_bride_and_groom.pdf
    • https://cdn.shopify.com/s/files/1/0428/3236/3676/files/fediwodudupanitofitig.pdf
    • https://cdn.shopify.com/s/files/1/0433/8037/5708/files/37620035061.pdf
    • https://cdn.shopify.com/s/files/1/0430/4060/4313/files/papepipufaxaledezafoza.pdf
    • https://cdn.shopify.com/s/files/1/0433/1051/4334/files/genestealer_cult_codex_7th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0432/3108/4708/files/pinivametapegemowug.pdf
    • https://cdn.shopify.com/s/files/1/0431/8278/4676/files/bodoro.pdf
    • https://cdn.shopify.com/s/files/1/0432/1725/6603/files/mekanisme_anti_jamur.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_off00006bb8.bin
ff223610e036ea76d776b2a4ce6b518ec9b71deab01248f744987597fe5c4d8b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6BB8 5348 bytes
font_01_sfnt_off00007dd2.bin
f67031fedab4ecc70fc501c7b737c0cc94457b1349b5ffbad48c64d43ec84b8d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7DD2 10364 bytes

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