Malicious PDF — malware analysis report

Static analysis result for SHA-256 5229212546a55fcb…

MALICIOUS

PDF

70.9 KB Created: 2020-08-03 08:15:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f6969bb993bac71ff940032bda45f700 SHA-1: 693cffca8409b3873f22a0f5406f944babc4b9b2 SHA-256: 5229212546a55fcb9912ddd1e516f362d0840f2ea232cdcf955a371c86190e6a
140 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link T1059.001 Command and Scripting Interpreter: PowerShell

The PDF contains a malicious redirector link disguised as a textbook PDF, leading to the URL https://ttraff.com/pify?keyword=elementary+statistics+bluman+9th+edition+pdf. This URL is part of a link farm designed to attract search engine traffic and likely serves as a lure for further malicious activity. The document body also contains numerous embedded links to Shopify-hosted PDFs, suggesting a broad distribution strategy.

Heuristics 4

  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
  • 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=elementary+statistics+bluman+9th+edition+pdf
    • http://files.allamericandogexpo.com/uploads/1/3/0/7/130738748/jovopowogumu_tetudepukiko_zorigexak_ruxedapopuju.pdf
    • http://files.nature-recharge-botanicals.com/uploads/1/3/2/6/132683087/1950813.pdf
    • http://files.puremovementdance.com/uploads/1/3/0/8/130874125/b5812.pdf
    • https://cdn.shopify.com/s/files/1/0432/3672/0798/files/58736419618.pdf
    • https://cdn.shopify.com/s/files/1/0431/7249/5524/files/46923572322.pdf
    • https://cdn.shopify.com/s/files/1/0430/7035/7661/files/96066072913.pdf
    • https://cdn.shopify.com/s/files/1/0431/7465/8216/files/83433990727.pdf
    • https://cdn.shopify.com/s/files/1/0430/6318/1473/files/67517142840.pdf
    • https://cdn.shopify.com/s/files/1/0437/3177/9733/files/54791599989.pdf
    • https://cdn.shopify.com/s/files/1/0435/2134/3647/files/13363828728.pdf
    • https://cdn.shopify.com/s/files/1/0430/9526/1348/files/62418429848.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/22271122494.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/fedixudarat.pdf
    • https://cdn.shopify.com/s/files/1/0433/5806/0703/files/product-_support-_staples.pdf
    • https://cdn.shopify.com/s/files/1/0441/0625/2440/files/30319509670.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_off0000b3cc.bin
49b33bf1ca7ac23d95bfd097dd487778c6ba99e16b696c2e38191acc34c15642
pdf-font-stream PDF embedded font (sfnt) at offset 0xB3CC 5748 bytes
font_01_sfnt_off0000c733.bin
463d356a4073c0026a5ce4ae4f0bdffe2fbf1cee0f5321fe47c45144dfe2d929
pdf-font-stream PDF embedded font (sfnt) at offset 0xC733 15220 bytes
font_02_sfnt_off0000f73f.bin
e93acd332f5893643511f4cefd38969ad5c744ad1b08842a788b6be7d277dd15
pdf-font-stream PDF embedded font (sfnt) at offset 0xF73F 16204 bytes