Malicious PDF — malware analysis report

Static analysis result for SHA-256 e2265af9264567e6…

MALICIOUS

PDF

38.4 KB Created: 2020-08-22 20:11:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e5ecb1a15da43f51dcf3bbe503c6a26d SHA-1: 5d16e7114c614e61658923f1d59cf82d4767b12a SHA-256: e2265af9264567e6c1be0d5d24739bad6e5274388961c37f3c4e2369f63091b6
130 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, many pointing to Shopify-hosted PDF files, indicating a link farm. One critical heuristic identified a link to a known malicious redirector. The document body contains a call-to-action phrase, suggesting a lure to click on these links. The primary intent appears to be SEO manipulation or distribution of further malicious content through the link farm.

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.
  • 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.com/pify?keyword=biagio+izzo+guardami+guardami
    • http://files.upwellings.com/uploads/1/3/1/6/131607174/c3eb020e.pdf
    • http://files.michellewalkermusic.com/uploads/1/3/0/7/130740180/kazapejo.pdf
    • https://cdn.shopify.com/s/files/1/0434/9997/8904/files/52551827289.pdf
    • https://cdn.shopify.com/s/files/1/0432/9432/6939/files/nudejomudidoso.pdf
    • https://cdn.shopify.com/s/files/1/0438/6321/2192/files/dumejijijuxapab.pdf
    • https://cdn.shopify.com/s/files/1/0431/9186/1412/files/didaletonukalev.pdf
    • https://cdn.shopify.com/s/files/1/0431/8075/3058/files/35798288150.pdf
    • https://cdn.shopify.com/s/files/1/0428/7656/7711/files/tamigesefesunazapil.pdf
    • https://cdn.shopify.com/s/files/1/0435/1793/5770/files/jugadulekabugapiwuxan.pdf
    • https://cdn.shopify.com/s/files/1/0428/8679/1334/files/easy_anti_cheat_csgo.pdf
    • https://cdn.shopify.com/s/files/1/0434/6567/0806/files/zaxiwuzosepafilinozegoje.pdf
    • https://cdn.shopify.com/s/files/1/0429/5560/4134/files/zesikewokolobofapenuti.pdf
    • https://cdn.shopify.com/s/files/1/0435/2029/5064/files/wutabobuvepox.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_off0000583e.bin
299eb444eb551399ec54783075ba42db73a4617250109628fc5499f29b362a2a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x583E 5036 bytes
font_01_sfnt_off00006946.bin
fa890ce94b5b7b5bfd4585760e6ec883462e1b5ce544ef1fa2c79b6fd7e09dc4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6946 10448 bytes

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