Malicious PDF — malware analysis report

Static analysis result for SHA-256 1eab29b872881723…

MALICIOUS

PDF

55.1 KB Created: 2020-07-29 09:30:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3acae32ab409ddd4bb86e8841070171e SHA-1: 1821f8f01446528d4eda4d33ea96fe9b88d6ee2b SHA-256: 1eab29b872881723e63b6c41951c54d1884619efc203a223fad4fb787da24d44
120 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.com, which is likely used to obscure the final destination of the malicious payload. The document body, though heavily obfuscated, suggests a lure related to 'argumentative text characteristics and structure PDF'. The presence of numerous external PDF links, many hosted on Shopify, indicates a link farm strategy to potentially improve SEO or distribute malicious content. 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.com/pify?keyword=texto+argumentativo+caracteristicas+y+estructura+pdf
    • http://files.merakidesignagency.com/uploads/1/3/0/8/130874296/mekufetot_miwamo_kajunupadip.pdf
    • http://files.robertlpalmer.com/uploads/1/3/0/7/130776273/sorifugopenolux_jupaxedena.pdf
    • http://files.dianalara-somatics.com/uploads/1/3/1/4/131438150/sinuboxusulogigutese.pdf
    • http://files.hulahoopster.com/uploads/1/3/2/8/132815119/tizazalizowum.pdf
    • http://files.monaleighhome.com/uploads/1/3/2/3/132303099/8b44e96.pdf
    • http://files.merakidesignagency.com/uploads/1/3/0/8/130874296/mekufetot_miwamo_kaju
    • https://cdn.shopify.com/s/files/1/0431/4749/3536/files/10222169617.pdf
    • https://cdn.shopify.com/s/files/1/0432/9806/2501/files/xalimemoxomejinexozenofo.pdf
    • https://cdn.shopify.com/s/files/1/0431/8740/4968/files/pifeverez.pdf
    • https://cdn.shopify.com/s/files/1/0429/3863/0300/files/mapepaxepipixugixiretise.pdf
    • https://cdn.shopify.com/s/files/1/0431/0378/1015/files/79218751496.pdf
    • https://cdn.shopify.com/s/files/1/0433/3882/5887/files/68047137242.pdf
    • https://cdn.shopify.com/s/files/1/0435/4224/9631/files/71374598134.pdf
    • https://cdn.shopify.com/s/files/1/0430/8451/3440/files/63390920510.pdf
    • https://cdn.shopify.com/s/files/1/0429/3564/8409/files/76785995525.pdf
    • https://cdn.shopify.com/s/files/1/0433/5560/3094/files/6329652972.pdf
    • https://cdn.shopify.com/s/files/1/0430/7510/9018/files/buleloxelujolizezi.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/18410569865.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_off0000966a.bin
29a831599dbaf65f6c0f3c69d53935d0b3c2d93f6e3919e6091ce77af8cd2eff
pdf-font-stream PDF embedded font (sfnt) at offset 0x966A 5504 bytes
font_01_sfnt_off0000a91d.bin
fba2c64423f4e3fba76c0590c78985e530cad7fe1c8eb972bcff3cbd14ac00b7
pdf-font-stream PDF embedded font (sfnt) at offset 0xA91D 11012 bytes