Malicious PDF — malware analysis report

Static analysis result for SHA-256 e7fe178a9c38a634…

MALICIOUS

PDF

42.4 KB Created: 2020-08-06 16:17:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 594ee78ea4ca0a66ee769d2e5d1bf607 SHA-1: 946b929353ee9fb6714ad1ce1ffbb7b8f11591a9 SHA-256: e7fe178a9c38a634cb66640a1f9d632e353e5a1f6e9ae09b330e404389796c24
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.com/pify?keyword=byte+array+to+pdf+javascript+example', indicating a likely attempt to redirect the user to malicious content. The presence of numerous links suggests a link farm or SEO poisoning tactic to increase visibility and lure victims.

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=byte+array+to+pdf+javascript+example
    • http://toxiseju.kickapoograzinginitiative.com/uploads/1/3/1/4/131454549/4a9c147f0a8675.pdf
    • http://files.mstreetfreerunning.com/uploads/1/3/2/6/132682681/zuporidimudi-bedajizujamin-fusunivikexi.pdf
    • http://files.unique-interpretations.com/uploads/1/3/1/0/131070336/b8990b411f.pdf
    • https://cdn.shopify.com/s/files/1/0433/3315/7014/files/kezigekurakarejexudibere.pdf
    • https://cdn.shopify.com/s/files/1/0437/6231/9521/files/what_is_the_shortest_word.pdf
    • https://cdn.shopify.com/s/files/1/0432/6454/0835/files/romitakesalezewas.pdf
    • https://cdn.shopify.com/s/files/1/0448/6764/9698/files/erin_andrews_peephole_video_watch.pdf
    • https://cdn.shopify.com/s/files/1/0433/6690/8065/files/balanopostitis_pediatria.pdf
    • https://cdn.shopify.com/s/files/1/0430/8120/3861/files/sipud.pdf
    • https://cdn.shopify.com/s/files/1/0440/0083/7782/files/lipekuwifoxek.pdf
    • https://cdn.shopify.com/s/files/1/0435/2340/8032/files/74560712345.pdf
    • https://cdn.shopify.com/s/files/1/0433/6176/3480/files/46438517446.pdf
    • https://cdn.shopify.com/s/files/1/0436/0319/8114/files/carbono_quiral.pdf
    • https://cdn.shopify.com/s/files/1/0429/9925/1093/files/26202738527.pdf
    • https://cdn.shopify.com/s/files/1/0432/2865/9870/files/88218700125.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_off00006657.bin
aef5bb1ba9de45cd3e4ab83aa3d580f19f0df1f90e93bd169f55bef35e9c8a6c
pdf-font-stream PDF embedded font (sfnt) at offset 0x6657 5656 bytes
font_01_sfnt_off000079a0.bin
7f3481db5e24eab632da82409e74a1ef1d6e0cf32ad88eb1e21e1d287ecb1a56
pdf-font-stream PDF embedded font (sfnt) at offset 0x79A0 10784 bytes