Malicious PDF — malware analysis report

Static analysis result for SHA-256 522b8be9f5761b0c…

MALICIOUS

PDF

39.8 KB Created: 2020-08-08 10:28:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 746ad41ee73c8d3c6b983ee96663b43d SHA-1: 6d0c4134819c2aba29485d6d85e4684a29eb3572 SHA-256: 522b8be9f5761b0cb0ef37c8ca50c6d4c543ccfb754995c6282fd015a0273eb0
120 Risk Score

Malware Insights

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

The PDF contains a mass of external links, with one specifically pointing to a known malicious redirector infrastructure at 'https://ttraff.com/pify?keyword=beginner+placement+test+english+pdf'. This indicates a phishing or scam attempt disguised as an English placement test. The document body, though heavily obfuscated, contains references to the same malicious URL and numerous benign-looking PDF links hosted on Shopify, likely to lend legitimacy to the overall lure.

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=beginner+placement+test+english+pdf
    • http://files.garden-artworks.com/uploads/1/3/1/4/131453213/dovuladeveti.pdf
    • http://files.localrootsjuiceco.com/uploads/1/3/1/8/131856446/doxaxalisak_xalimakumopeli_kawufulovaru_subixorezi.pdf
    • http://jigiwove.lifeconnectioncenter.org/uploads/1/3/1/3/131398140/864724c.pdf
    • http://files.careyparanormalresearch.com/uploads/1/3/2/7/132712127/3451233.pdf
    • http://files.raygalleryny.com/uploads/1/3/2/6/132682303/888b34f46c0af9.pdf
    • https://cdn.shopify.com/s/files/1/0431/2036/1629/files/les_belles_lettres.pdf
    • https://cdn.shopify.com/s/files/1/0432/5857/7056/files/42881653024.pdf
    • https://cdn.shopify.com/s/files/1/0432/8400/5032/files/30056182618.pdf
    • https://cdn.shopify.com/s/files/1/0432/8030/2240/files/57743041323.pdf
    • https://cdn.shopify.com/s/files/1/0438/4748/3552/files/bodetiwegitapivado.pdf
    • https://cdn.shopify.com/s/files/1/0429/0628/8291/files/74166614109.pdf
    • https://cdn.shopify.com/s/files/1/0431/9726/8128/files/dibabitewojatakot.pdf
    • https://cdn.shopify.com/s/files/1/0437/6667/7655/files/concrete_mix_design.pdf
    • https://cdn.shopify.com/s/files/1/0435/0866/2440/files/45311242250.pdf
    • https://cdn.shopify.com/s/files/1/0437/1673/9222/files/gojinanosolenem.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_off00005db5.bin
189b31c3753fc1f7eca3de8b0907c4a3dd05c424dcb75a5447b6561154b2cd07		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5DB5 5616 bytes
font_01_sfnt_off000070a5.bin
540e3fa24b9e2a0c1094515f26ac44fb8ea41193003adfd47d422e900f1f4b30		 pdf-font-stream PDF embedded font (sfnt) at offset 0x70A5 9840 bytes

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