Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee346baa3dd7bb32…

MALICIOUS

PDF

40.1 KB Created: 2020-08-16 23:41:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 96555d130fa69765f25bca7e0b892c0e SHA-1: 4bd3e4820ef0a7fe1bda0d30579e7ad6addb4ccd SHA-256: ee346baa3dd7bb32713ca2d12a21b30784175b79247b83172a8ce3702b838341
120 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.cc, which is disguised as a download for "Facebook lite for java mobile". The document also contains a large number of links to other PDFs hosted on Shopify, likely for SEO manipulation to improve the ranking of the malicious redirector. The presence of multiple embedded PDFs and the redirector link suggest a phishing or scam campaign.

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.cc/pify?keyword=facebook+lite+for+java+mobile
    • http://sipum.amberdietz.com/uploads/1/3/0/7/130738964/4bf92df1f2.pdf
    • http://files.dropintoinfinity.com/uploads/1/3/0/7/130739747/2346933.pdf
    • http://files.ryanvasqueznyc.com/uploads/1/3/0/8/130873732/3107598.pdf
    • http://files.besthomedealsph.com/uploads/1/3/0/7/130775053/nedunanebesore.pdf
    • http://files.stalbridgearchive.co.uk/uploads/1/3/0/7/130776826/358029.pdf
    • https://cdn.shopify.com/s/files/1/0434/2346/5623/files/xorokipisatokafedi.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/famulogux.pdf
    • https://cdn.shopify.com/s/files/1/0434/3080/5653/files/wutuwimesisotogibawaj.pdf
    • https://cdn.shopify.com/s/files/1/0430/7383/1072/files/7751799303.pdf
    • https://cdn.shopify.com/s/files/1/0434/6678/4932/files/zukovuverobes.pdf
    • https://cdn.shopify.com/s/files/1/0437/7015/1061/files/sujotulas.pdf
    • https://cdn.shopify.com/s/files/1/0435/6761/2067/files/java_list_initialization.pdf
    • https://cdn.shopify.com/s/files/1/0434/7432/1560/files/lipid_profile_2020.pdf
    • https://cdn.shopify.com/s/files/1/0431/6105/9482/files/kaguriwevemelidovudolupib.pdf
    • https://cdn.shopify.com/s/files/1/0439/5125/9803/files/cardinal_and_ordinal_numbers_activities.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_off00005f1b.bin
4bdd8fb0019ae144e4ca842263a87234bb04615e80b5f15b084673ca2c3321be		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F1B 5144 bytes
font_01_sfnt_off00007091.bin
608b84f40026bf9fdbb4dc76f750acede0a158a8634ebfbb99abdb92fcdf2ef3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7091 10184 bytes

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