Malicious PDF — malware analysis report

Static analysis result for SHA-256 b260b697a3722974…

MALICIOUS

PDF

41.3 KB Created: 2020-08-02 00:59:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a73bace593caca76dc73962752d1ac2e SHA-1: d00bac5a0f21877cf45f3c5ae9a57e2ecb314ecd SHA-256: b260b697a37229742f5ae6ae2c371efd5b99e418aab5fad71d6a5580b74eea50
140 Risk Score

Malware Insights

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

The PDF file contains a link farm and a malicious redirector, indicating an attempt to lead the user to a harmful site. The document body, though obfuscated, contains text related to a construction guide and the malicious URL, suggesting a lure for a phishing or scam campaign. The presence of numerous external PDF links, many hosted on Shopify, points to a link farm strategy to potentially improve SEO or distribute malicious content.

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.cc/pify?keyword=1-+99+construction+guide+osrs
    • http://files.blueeyedqtpies.com/uploads/1/3/1/3/131379894/ferotedibe.pdf
    • http://files.rearwindowphotography.com/uploads/1/3/1/4/131438018/feb566cacf4.pdf
    • http://files.finddallasfortworthapartments.com/uploads/1/3/0/7/130775728/5959823.pdf
    • https://cdn.shopify.com/s/files/1/0433/2696/3865/files/the_name_game_song.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/89120683065.pdf
    • https://cdn.shopify.com/s/files/1/0428/2885/7503/files/78771840709.pdf
    • https://cdn.shopify.com/s/files/1/0434/6344/2598/files/42457969782.pdf
    • https://cdn.shopify.com/s/files/1/0432/2213/9041/files/tanusamota.pdf
    • https://cdn.shopify.com/s/files/1/0432/2449/8343/files/nerofonijilezutudezojak.pdf
    • https://cdn.shopify.com/s/files/1/0430/5272/8474/files/73070828654.pdf
    • https://cdn.shopify.com/s/files/1/0430/9801/3857/files/70537307492.pdf
    • https://cdn.shopify.com/s/files/1/0434/8801/8598/files/zefuridebumux.pdf
    • https://cdn.shopify.com/s/files/1/0429/0543/6326/files/70453651822.pdf
    • https://cdn.shopify.com/s/files/1/0433/7650/9080/files/kiwaduwupuzataxinakaz.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_off00006422.bin
9302af5913574aea1b33df8fc22622d65dfb8936d112117bb8b0bb6f9b68df05		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6422 5008 bytes
font_01_sfnt_off00007544.bin
ad2f133279a7f175bf08dee254524cb0ca573c5ad3a6fcb013830663cafbeece		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7544 10276 bytes

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