Malicious PDF — malware analysis report

Static analysis result for SHA-256 c2bf9e32787460d3…

MALICIOUS

PDF

48.6 KB Created: 2020-08-16 22:32:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 046ce8a56e88e2365d8541db26f286dd SHA-1: acec71c93bce61d5b2dd7ad34b0f44d152a2f32c SHA-256: c2bf9e32787460d332dbc496a4309e344d5e140a1417eae181fd6f4abc7f0f3c
140 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.ru/pify?keyword=sentencing+guidelines+assault+police'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links, including one to 'https://cdn.shopify.com/s/files/1/0433/1077/6478/files/dell_deminsion_2350.pdf'. The document body also contains callback phishing lures, suggesting an attempt to trick the user into contacting a fraudulent service. No scripts were extracted from this sample.

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.ru/pify?keyword=sentencing+guidelines+assault+police
    • http://turubozi.navslaborers.org/uploads/1/3/1/1/131164462/8842571.pdf
    • http://files.northernboatwholesalers.net/uploads/1/3/1/4/131483305/datudatarafawurud.pdf
    • http://files.lindysteeleartist.com/uploads/1/3/1/3/131378993/fojadutozakibutuk.pdf
    • http://files.freelandyouthwrestling.com/uploads/1/3/0/7/130739140/41e75.pdf
    • https://cdn.shopify.com/s/files/1/0433/1077/6478/files/dell_deminsion_2350.pdf
    • https://cdn.shopify.com/s/files/1/0428/8082/7558/files/xodonupazinabukopefosopix.pdf
    • https://cdn.shopify.com/s/files/1/0435/9415/4146/files/97597525250.pdf
    • https://cdn.shopify.com/s/files/1/0429/8450/5498/files/cube_world_free_download_2017.pdf
    • https://cdn.shopify.com/s/files/1/0438/0455/7472/files/sobizajulonuzugawuf.pdf
    • https://cdn.shopify.com/s/files/1/0428/8974/0441/files/24623334738.pdf
    • https://cdn.shopify.com/s/files/1/0450/7284/2915/files/importance_of_logical_framework.pdf
    • https://cdn.shopify.com/s/files/1/0445/5848/3620/files/caderno_de_anotaes_congresso_2018.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/37278413385.pdf
    • https://cdn.shopify.com/s/files/1/0434/0105/2323/files/kinisasoxuribabufeva.pdf
    • https://cdn.shopify.com/s/files/1/0435/5499/6383/files/4._snf_sosyal_bilgiler_test.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/66456909559.pdf
    • https://cdn.shopify.com/s/files/1/0431/5581/6608/files/93336518705.pdf
    • https://cdn.shopify.com/s/files/1/0433/2093/4558/files/attestation_de_prise_en_charge.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_off0000729b.bin
6ad532709b5c2bd3aef2283de45bf44009deb5c7a1786625dd6ea0439f6c3da6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x729B 5132 bytes
font_01_sfnt_off00008416.bin
9ee4f663eaf443487402ea24e6bc6f5e3e2cc4ded7d31031e5bf50618770b49c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8416 10300 bytes
font_02_sfnt_off0000a6be.bin
cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA6BE 4324 bytes

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