Malicious PDF — malware analysis report

Static analysis result for SHA-256 c806ccb84d35f574…

MALICIOUS

PDF

51.5 KB Created: 2020-08-25 16:19:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 46a54d73707eb1969d8bf8de952e90d5 SHA-1: 78e4b0b22a6f64e6f7bb96922ea93af95e1a5cc7 SHA-256: c806ccb84d35f574c27c2664132a079180d89b504ae9890a592fed3ac33e5dd0
120 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with a critical heuristic firing for a malicious redirector at 'https://ttraff.ru/pify?keyword=graphic+organizer+template+for+argumentative+essay'. Another critical heuristic indicates a PDF link farm, suggesting a broad distribution attempt. The document body, though heavily obfuscated, contains text related to 'graphic organizer template for argumentative essay' and the malicious URL, reinforcing the lure.

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.ru/pify?keyword=graphic+organizer+template+for+argumentative+essay
    • http://files.bookedwinmoses.com/uploads/1/3/2/8/132815748/5777980.pdf
    • http://files.highimpactanalysis.com/uploads/1/3/2/6/132695651/dokejik-gabavaxoba.pdf
    • https://cdn.shopify.com/s/files/1/0433/8073/6165/files/power_spread_offense_playbook.pdf
    • https://cdn.shopify.com/s/files/1/0438/7205/9547/files/bmtc_bus_pass_form_2018-_19.pdf
    • https://cdn.shopify.com/s/files/1/0437/2830/6341/files/cours_bijection_injection_surjection.pdf
    • https://cdn.shopify.com/s/files/1/0432/4877/9426/files/carcinoma_in_situ_de_mama.pdf
    • https://cdn.shopify.com/s/files/1/0436/1905/7826/files/gps_map_camera_app.pdf
    • https://cdn.shopify.com/s/files/1/0427/5650/5756/files/ecological_relationships_worksheet.pdf
    • https://cdn.shopify.com/s/files/1/0435/1442/9608/files/86944010349.pdf
    • https://cdn.shopify.com/s/files/1/0438/2785/5522/files/winakekexofu.pdf
    • https://cdn.shopify.com/s/files/1/0437/3653/1095/files/bharat_movie_song_slow_motion_pagalworld.pdf
    • https://cdn.shopify.com/s/files/1/0431/9513/8208/files/bbc_middle_east_news_reporters.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_off00008a81.bin
965bc1e981e7e7f224618595467069281d4c5ef07d76e0ad0fcbed9d6ae4caec		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8A81 5672 bytes
font_01_sfnt_off00009db9.bin
147887f2546723e491d6ee010624975f253400e8ade621777e7d59e4b27eba3c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9DB9 10216 bytes

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