Malicious PDF — malware analysis report

Static analysis result for SHA-256 57374d96d05b79c2…

MALICIOUS

PDF

47.1 KB Created: 2020-08-21 13:44:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c93ea77bb8da5f515efe07c080e46699 SHA-1: 5a10436a991769e850c90494c877dee2ee2845b1 SHA-256: 57374d96d05b79c21c805fbe020e27f9c21c8f1b7b834d5f07d17b87f9616612
148 Risk Score

Malware Insights

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

The PDF contains a lure related to 'Consumer reports magazine sign in' and a prominent link to a redirector URL. This redirector is associated with malicious infrastructure, indicating a phishing or scam attempt. The presence of numerous other PDF links, many hosted on Shopify, suggests a link farm used to obscure the final malicious destination. The document body also contains a callback lure, further supporting a social engineering attack.

Heuristics 5

  • 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
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=consumer+reports+magazine+sign+in
    • http://files.sacredheartsocietycny.com/uploads/1/3/1/8/131872087/dosikiwedu.pdf
    • http://wuserer.bmightyproject.com/uploads/1/3/1/6/131606875/7238679.pdf
    • http://files.napavalleyentertaining.com/uploads/1/3/2/3/132303077/8651493.pdf
    • http://fowuz.florologie.com/uploads/1/3/2/7/132712286/4910149.pdf
    • http://files.mhsdesigns.net/uploads/1/3/0/7/130775320/9950660.pdf
    • https://cdn.shopify.com/s/files/1/0432/2348/2525/files/javascript_tutorial_full.pdf
    • https://cdn.shopify.com/s/files/1/0428/7430/6719/files/58531695010.pdf
    • https://cdn.shopify.com/s/files/1/0433/8037/5704/files/95201917801.pdf
    • https://cdn.shopify.com/s/files/1/0435/4274/1143/files/bazirixibisalesewiri.pdf
    • https://cdn.shopify.com/s/files/1/0431/6420/5216/files/elf_bowling_free.pdf
    • https://cdn.shopify.com/s/files/1/0436/4101/2382/files/pukamaguzu.pdf
    • https://cdn.shopify.com/s/files/1/0428/8305/5782/files/58899801589.pdf
    • https://cdn.shopify.com/s/files/1/0434/7399/3890/files/baby_doll_remix_video_song_pagalworld.pdf
    • https://cdn.shopify.com/s/files/1/0432/2859/4336/files/thyroid_storm_management.pdf
    • https://cdn.shopify.com/s/files/1/0434/7107/7542/files/divatinuvuligowixupinam.pdf
    • https://cdn.shopify.com/s/files/1/0432/9301/6222/files/49257392778.pdf
    • https://cdn.shopify.com/s/files/1/0437/2375/1575/files/alberta_air_brake_manual.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_off00006c99.bin
085ab0cc7aa9a7244cdbfa5360054a14137a4db5b68a4cddc147d776cd4de545		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6C99 5064 bytes
font_01_sfnt_off00007dbe.bin
249a2bd73e8cced5cb079f18ad854e95cb68eb8124d6a4e6016262b7055e6687		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7DBE 10360 bytes
font_02_sfnt_off0000a13e.bin
0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA13E 4324 bytes

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