Malicious PDF — malware analysis report

Static analysis result for SHA-256 8a409c071fe16c32…

MALICIOUS

PDF

43.7 KB Created: 2020-08-05 05:06:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: feccfc236960ceb012dc81596a42c5e3 SHA-1: 771605d89a9064d21688e0f2207fee8b609bbaa2 SHA-256: 8a409c071fe16c32d9b4b0b40740ec8b2546c663bbbbc0f8d3c98840ace13e8f
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.com/pify?keyword=twisted+ovarian+cyst+pdf'. This indicates the document is designed to lure users to a malicious site, likely for phishing or malware distribution. The presence of a large number of external PDF links, many hosted on Shopify, suggests a link farm or SEO poisoning tactic to increase visibility. No scripts were extracted, but the primary attack vector appears to be social engineering via a deceptive document.

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=twisted+ovarian+cyst+pdf
    • http://files.moldandwaterdamagespecialistinc.com/uploads/1/3/2/8/132814674/pefebafi_tisutata_batiz.pdf
    • http://files.speedkiteboard.com/uploads/1/3/1/4/131437563/eebb615a79d5.pdf
    • http://files.irva.studio/uploads/1/3/2/6/132696063/30f756009.pdf
    • http://mikopese.allegro-as.no/uploads/1/3/0/7/130775320/gofajikebug-darad-ziduwebexo-tetuparu.pdf
    • http://files.destinationsbyjudy.com/uploads/1/3/2/7/132740204/kajufepes.pdf
    • https://cdn.shopify.com/s/files/1/0431/8619/2546/files/18160134780.pdf
    • https://cdn.shopify.com/s/files/1/0429/9289/4115/files/96316755758.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/zijuk.pdf
    • https://cdn.shopify.com/s/files/1/0429/2198/4166/files/wizapadedejuperudoxeget.pdf
    • https://cdn.shopify.com/s/files/1/0437/7211/7141/files/899445976.pdf
    • https://cdn.shopify.com/s/files/1/0437/6467/8817/files/37563486694.pdf
    • https://cdn.shopify.com/s/files/1/0430/4932/0610/files/litumotopupogedifowuxisa.pdf
    • https://cdn.shopify.com/s/files/1/0436/1653/4685/files/1025769564.pdf
    • https://cdn.shopify.com/s/files/1/0430/8212/1377/files/nunomuvosiwi.pdf
    • https://cdn.shopify.com/s/files/1/0438/7520/5288/files/6413215212.pdf
    • https://cdn.shopify.com/s/files/1/0430/5063/1319/files/78237758269.pdf
    • https://cdn.shopify.com/s/files/1/0431/1361/1413/files/19792090604.pdf
    • https://cdn.shopify.com/s/files/1/0428/0333/1231/files/18124608097.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_off00006191.bin
afa6bbb6384206c8ad74e579b41fd8cf36974dabae1ac4db2dee6f62c76c51c0
pdf-font-stream PDF embedded font (sfnt) at offset 0x6191 5108 bytes
font_01_sfnt_off00007317.bin
0d4e2b4975a4eba1f81f1b0b9206785ce89d17640d09e846dddf0b7e4fe21d8f
pdf-font-stream PDF embedded font (sfnt) at offset 0x7317 9580 bytes
font_02_sfnt_off000093da.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3
pdf-font-stream PDF embedded font (sfnt) at offset 0x93DA 4324 bytes