Malicious PDF — malware analysis report

Static analysis result for SHA-256 e2531882a617022c…

MALICIOUS

PDF

51.6 KB Created: 2020-08-20 20:45:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b8fc30d4f70ced1c33ab47e44ccfd897 SHA-1: 1803ea4b3cfc29a88a86cf8f48f727d49d81953d SHA-256: e2531882a617022cb66ae88d29caf3f3702acba7f500f0357ac7a05e39335a58
150 Risk Score

Malware Insights

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

The PDF contains a link to a redirector hosted on ttraff.com, which is flagged as malicious. The document body, though heavily obfuscated, contains the same URL, suggesting it's the primary lure. The PDF also contains a large number of embedded links to Shopify-hosted PDFs, likely for SEO manipulation to increase visibility. No scripts were extracted, but the presence of the malicious redirector and the link farm indicates a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=cartoon+game+free
    • http://files.katiemachain.com/uploads/1/3/1/4/131455283/57a787ca629.pdf
    • http://files.mindfulhealingboulder.com/uploads/1/3/0/9/130969402/gazawimizasopo.pdf
    • http://files.facethreads.com/uploads/1/3/1/4/131407737/7439261.pdf
    • http://files.pattilooneyphotography.com/uploads/1/3/1/4/131455832/d6ebb77ccf261.pdf
    • https://cdn.shopify.com/s/files/1/0430/3598/4029/files/xelupoduwiwototenazejadun.pdf
    • https://cdn.shopify.com/s/files/1/0437/0015/8629/files/87853671967.pdf
    • https://cdn.shopify.com/s/files/1/0432/7833/6165/files/fuwadaz.pdf
    • https://cdn.shopify.com/s/files/1/0434/1825/5510/files/sees_easter_candy.pdf
    • https://cdn.shopify.com/s/files/1/0427/6604/1244/files/witijifogupizojufij.pdf
    • https://cdn.shopify.com/s/files/1/0428/1594/6918/files/michael_phelps_smokin_weed.pdf
    • https://cdn.shopify.com/s/files/1/0433/2666/8952/files/xozogaxijuzobugudewonuza.pdf
    • https://cdn.shopify.com/s/files/1/0428/1437/4054/files/46126528929.pdf
    • https://cdn.shopify.com/s/files/1/0432/6300/0734/files/72388594914.pdf
    • https://cdn.shopify.com/s/files/1/0427/7331/5740/files/birthday_wishes_images_and_videos_free.pdf
    • https://cdn.shopify.com/s/files/1/0432/0739/3439/files/kukeronirusizus.pdf
    • https://cdn.shopify.com/s/files/1/0437/3495/8229/files/andira_inermis.pdf
    • https://cdn.shopify.com/s/files/1/0434/5574/2114/files/42685135574.pdf
    • https://cdn.shopify.com/s/files/1/0433/2139/3320/files/lolesobanarigij.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_off00007621.bin
be492dfc4644d91ac3699cf28faf2657aaac9a8844782ff72d7135e569fe7deb
pdf-font-stream PDF embedded font (sfnt) at offset 0x7621 4784 bytes
font_01_sfnt_off00008650.bin
ac26b22457540bf15635f43a0a759d207bb1a5451ef9d6cdad1ca9bb7c935d67
pdf-font-stream PDF embedded font (sfnt) at offset 0x8650 11096 bytes
font_02_sfnt_off0000ac27.bin
879cf2680ef1055aaab89095a3cd3b9a6079dc23304346ba8e3d946c5eafa09b
pdf-font-stream PDF embedded font (sfnt) at offset 0xAC27 16080 bytes