Malicious PDF — malware analysis report

Static analysis result for SHA-256 e1d78a7992a54d98…

MALICIOUS

PDF

36.3 KB Created: 2020-08-19 08:39:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5d5ebd6f28cb1be23ac517c1df9cdea8 SHA-1: bc50a6194d3a35f0c710314b27c15fc87fdd0c2b SHA-256: e1d78a7992a54d98f533a4f568ff84358d66f94285cff8e919f5495a48368b2f
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to external resources. One critical heuristic identified a link to a known malicious redirector infrastructure at 'https://ttraff.com/pify?keyword=ielts+liz+vocabulary+pdf'. This suggests the document is designed to redirect users to malicious sites, likely for phishing or malware distribution. No scripts were extracted from this sample.

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=ielts+liz+vocabulary+pdf
    • http://vovamib.mattngeditor.com/uploads/1/3/1/4/131438464/1512943.pdf
    • http://files.illuminat.co/uploads/1/3/1/3/131383377/2154d14322c4a1.pdf
    • http://lelivopo.atomichairsalon.com/uploads/1/3/1/6/131606289/wivanavoson-zefekojagekaxo.pdf
    • http://files.fullfootprint.org/uploads/1/3/2/3/132302896/xejidarusetilawoniz.pdf
    • https://cdn.shopify.com/s/files/1/0431/4634/6657/files/beetlejuice_say_my_name_sheet_music.pdf
    • https://cdn.shopify.com/s/files/1/0431/7921/2959/files/47402410338.pdf
    • https://cdn.shopify.com/s/files/1/0430/8012/2532/files/dedakewibedovokuwatilidak.pdf
    • https://cdn.shopify.com/s/files/1/0427/4782/2236/files/1206488860.pdf
    • https://cdn.shopify.com/s/files/1/0447/3418/5628/files/terjemah_al_mughni.pdf
    • https://cdn.shopify.com/s/files/1/0432/0513/2456/files/25364230609.pdf
    • https://cdn.shopify.com/s/files/1/0430/8572/5857/files/one_tree_hill_song.pdf
    • https://cdn.shopify.com/s/files/1/0429/0071/7727/files/97260576083.pdf
    • https://cdn.shopify.com/s/files/1/0440/2331/6630/files/70798048007.pdf
    • https://cdn.shopify.com/s/files/1/0434/2412/0984/files/miligusugafenusefugakowi.pdf
    • https://cdn.shopify.com/s/files/1/0437/1080/8217/files/food_cost_formula_menu_pricing.pdf
    • https://cdn.shopify.com/s/files/1/0437/1503/5291/files/1769660101.pdf
    • https://cdn.shopify.com/s/files/1/0440/0221/4046/files/urticaria_con_angioedema.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_off00004ff6.bin
614fd2274808c1fd5905cda354f798a926be94299b5f720fc8631144ecc79a1d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4FF6 5440 bytes
font_01_sfnt_off00006291.bin
95a68144757a8c37f5116982d2cffbf940e1de20bc579092dcf1cd6f882d6104		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6291 9928 bytes

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