Malicious PDF — malware analysis report

Static analysis result for SHA-256 52b8fe754683d0ea…

MALICIOUS

PDF

41.1 KB Created: 2020-08-23 15:30:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 595e0e9c329c51d3fe0a6ee35403fcdd SHA-1: 3b326456c7f945bd8b82f4d88a93b2fdaca3c04a SHA-256: 52b8fe754683d0ea2b3f31537083b085db3e5fc2de5b556c83adf29bd09d4d60
120 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with many links pointing to Shopify domains and one critical link to a known malicious redirector at ttraff.com. The document body, though heavily obfuscated, contains the URL https://ttraff.com/pify?keyword=corpus+linguistics+book+pdf, suggesting a lure to download a PDF. This indicates the primary goal is to redirect the user to malicious infrastructure.

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=corpus+linguistics+book+pdf
    • http://files.strikesforkidsseattle.com/uploads/1/3/1/0/131070849/sizapobuwep.pdf
    • http://files.foodsfourthought.com/uploads/1/3/0/8/130874110/4cd601bc4e.pdf
    • http://bokekuka.brianriordanmusic.com/uploads/1/3/0/7/130739278/tawomuwa.pdf
    • http://files.visiontreecenter.org/uploads/1/3/0/7/130739779/8aa61fdac8864b1.pdf
    • http://files.whatissparta.com/uploads/1/3/1/6/131606854/wijota_lomuto_bexerugowejon.pdf
    • https://cdn.shopify.com/s/files/1/0434/7127/4146/files/stardew_valley_fishing_guide_bundle.pdf
    • https://cdn.shopify.com/s/files/1/0449/9714/8830/files/fumogilevava.pdf
    • https://cdn.shopify.com/s/files/1/0428/6529/5526/files/83550670159.pdf
    • https://cdn.shopify.com/s/files/1/0428/4504/4892/files/11986316565.pdf
    • https://cdn.shopify.com/s/files/1/0435/1960/6936/files/fomimerunuwaxamif.pdf
    • https://cdn.shopify.com/s/files/1/0433/7732/8286/files/gotimi.pdf
    • https://cdn.shopify.com/s/files/1/0434/0183/8757/files/kamufakifovikovuwabanowe.pdf
    • https://cdn.shopify.com/s/files/1/0446/9296/3484/files/6149533407.pdf
    • https://cdn.shopify.com/s/files/1/0437/0314/0506/files/29911056363.pdf
    • https://cdn.shopify.com/s/files/1/0429/6956/3290/files/dagubagom.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_off000061c4.bin
fcc51b922c80e04eba76cfdb47b845018ddb21c5efd9bf472f1422f94a512751		 pdf-font-stream PDF embedded font (sfnt) at offset 0x61C4 5220 bytes
font_01_sfnt_off00007392.bin
acbc0347348050ffe13643ed3d15f94ee76fdae625ba124e36e9764e0e7b9605		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7392 10672 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.