Malicious PDF — malware analysis report

Static analysis result for SHA-256 d6058a0ec49d2779…

MALICIOUS

PDF

46.6 KB Created: 2020-08-18 15:00:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 818f87fb03161f9a75d838a7301013ee SHA-1: a166509340c93ee9c73d6cc3239a926516021a64 SHA-256: d6058a0ec49d27797b34ae3f509e48d7dd0da2c1a37f7d8f93f31945889ac5f3
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a large number of embedded links, many pointing to external resources, which is characteristic of a link farm. One critical heuristic identified a direct link to a known malicious redirector, ttraff.com, which is used to lure users with the pretext of a 'live video chat app for android'. The document body confirms this lure. The presence of numerous PDF links suggests an attempt to distribute malicious content or engage in SEO manipulation for malicious purposes.

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=live+video+chat+app+for+android
    • http://fizus.mountaintoprodeo.com/uploads/1/3/1/6/131606552/bobofojukajemo.pdf
    • http://vadek.kimtarrestaurant.com/uploads/1/3/0/7/130739017/vopot-robogazovunazu.pdf
    • http://files.yubakids.org/uploads/1/3/1/8/131871569/7425519.pdf
    • https://cdn.shopify.com/s/files/1/0428/5494/0828/files/rezizibiwirexowug.pdf
    • https://cdn.shopify.com/s/files/1/0432/3121/5780/files/87177904328.pdf
    • https://cdn.shopify.com/s/files/1/0432/8249/7701/files/jepawuw.pdf
    • https://cdn.shopify.com/s/files/1/0431/9812/0094/files/306958993.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/646255477.pdf
    • https://cdn.shopify.com/s/files/1/0431/5352/2850/files/86462357391.pdf
    • https://cdn.shopify.com/s/files/1/0430/9037/8909/files/dahua_camera_price_list.pdf
    • https://cdn.shopify.com/s/files/1/0434/0236/3045/files/rapiragilu.pdf
    • https://cdn.shopify.com/s/files/1/0438/0629/4176/files/91925490609.pdf
    • https://cdn.shopify.com/s/files/1/0440/1538/6774/files/electronics_projects_for_dummies_book.pdf
    • https://cdn.shopify.com/s/files/1/0433/5920/7579/files/12280239102.pdf
    • https://cdn.shopify.com/s/files/1/0433/0032/3478/files/podofidoxugidirawawine.pdf
    • https://cdn.shopify.com/s/files/1/0429/5131/1513/files/60188199778.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_off00006cb0.bin
072143a77cbc9634f1c67303f11afacc034d3d6413058aa646222a3e62fe403e
pdf-font-stream PDF embedded font (sfnt) at offset 0x6CB0 4824 bytes
font_01_sfnt_off00007d0d.bin
914f1da5c15a69d3f07a46539af96e3a6e27c9c271cbfed6610146db1f7f4c81
pdf-font-stream PDF embedded font (sfnt) at offset 0x7D0D 10032 bytes
font_02_sfnt_off00009f5f.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3
pdf-font-stream PDF embedded font (sfnt) at offset 0x9F5F 4324 bytes