Malicious PDF — malware analysis report

Static analysis result for SHA-256 ef57c150557ed3a7…

MALICIOUS

PDF

43.8 KB Created: 2020-08-24 05:44:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 69fa6d44ba82be6a68a1fc04ecd4f708 SHA-1: 72ccdc9f3dc50a486b9ee46f5a885de131385972 SHA-256: ef57c150557ed3a72552382a0fcf5b62935718ba4bb15aeaf37ba435e74b1590
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=bobol+wifi+wpa+dengan+android+tanpa+root'. This URL is likely used to redirect users to a phishing page or download further malicious content. The document also contains a large number of embedded links, many hosted on cdn.shopify.com, which is flagged as a PDF SEO link farm. 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.cc/pify?keyword=bobol+wifi+wpa+dengan+android+tanpa+root
    • http://files.countrynmoresiouxfalls.com/uploads/1/3/0/7/130740148/mesogupurukafa-fogofijibe-muxatapew-nakizupedopew.pdf
    • http://sagupetet.hinterlandbaptistchurch.com/uploads/1/3/1/4/131408061/zixubakonakawiw.pdf
    • http://files.elizabethtownchristianacademy.org/uploads/1/3/1/4/131437615/83090b8d0c.pdf
    • http://bafilute.pbonnafant.com/uploads/1/3/2/6/132696434/dugolelowekafukuw.pdf
    • http://files.judygrillo.com/uploads/1/3/1/3/131383045/gotepodavubunelixur.pdf
    • https://cdn.shopify.com/s/files/1/0437/9171/2405/files/sap_bods_study_material.pdf
    • https://cdn.shopify.com/s/files/1/0451/4234/3833/files/bodoland_lottery_result.pdf
    • https://cdn.shopify.com/s/files/1/0440/2656/0677/files/90512394399.pdf
    • https://cdn.shopify.com/s/files/1/0431/5480/0802/files/basic_proportionality_theorem_worksheet.pdf
    • https://cdn.shopify.com/s/files/1/0430/6750/6849/files/xigovepubuxaletemesojexok.pdf
    • https://cdn.shopify.com/s/files/1/0435/8701/0728/files/download_omarion_post_to_be.pdf
    • https://cdn.shopify.com/s/files/1/0431/1656/0550/files/58256964561.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_off00006cc5.bin
827477eb8ebf423b17fc6e849206b00e46b54e40ec4dd73031b7737414fe0a3c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6CC5 5312 bytes
font_01_sfnt_off00007ef0.bin
6c009257285d77123006f341a6d18d7c71e8d5b07d2fff9debad7d0e6d31e977		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7EF0 10476 bytes

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