Malicious PDF — malware analysis report

Static analysis result for SHA-256 2801deac5bbce463…

MALICIOUS

PDF

57.3 KB Created: 2020-08-23 13:33:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d7fa44a91fb13e1a7fca34c4b3a553d1 SHA-1: 3e2a24c87de45b7027df9a324ae9f7fc6a20ffa3 SHA-256: 2801deac5bbce4638b5e26842f96942710a15367ea076db9df93b26d38f82648
160 Risk Score

Malware Insights

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

The PDF contains a lure to install a browser extension or update, a common social-engineering tactic. It also hosts a large number of external PDF links, many pointing to Shopify, with one specifically identified as a malicious redirector. The primary malicious URL is https://ttraff.com/pify?keyword=camera+360+apk+samsung+galaxy+y, which is likely used to redirect the user to a malicious site. No scripts were extracted, limiting the analysis of direct payload execution.

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.
  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • 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=camera+360+apk+samsung+galaxy+y
    • http://files.tedxasb.com/uploads/1/3/0/8/130873715/6119520.pdf
    • http://rubilo.agbio-inc.com/uploads/1/3/2/6/132683130/316ed0b4faced.pdf
    • https://cdn.shopify.com/s/files/1/0434/4751/7341/files/castillos_de_carton_almudena_grandes_gratis.pdf
    • https://cdn.shopify.com/s/files/1/0427/4647/8759/files/mikubireforalanak.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/98774508290.pdf
    • https://cdn.shopify.com/s/files/1/0429/9898/8954/files/59452535445.pdf
    • https://cdn.shopify.com/s/files/1/0436/1519/1202/files/7076914075.pdf
    • https://cdn.shopify.com/s/files/1/0433/4023/4902/files/54692276469.pdf
    • https://cdn.shopify.com/s/files/1/0433/4570/7166/files/24333627809.pdf
    • https://cdn.shopify.com/s/files/1/0432/7666/4998/files/bobcat_brushcat_parts_diagram.pdf
    • https://cdn.shopify.com/s/files/1/0428/5680/8607/files/56279295859.pdf
    • https://cdn.shopify.com/s/files/1/0432/0280/5921/files/84649538280.pdf
    • https://cdn.shopify.com/s/files/1/0430/7386/3842/files/36390800867.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007aff.bin
88dd92f12fa594c87f132d93485696c5106ddb9a5d263fa1b411e15f7f8bfc32		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7AFF 2952 bytes
font_01_sfnt_off0000858a.bin
5c4f556ccc6f34ccbbca5c702ae435285c5bca401786c3afa0b065da55222672		 pdf-font-stream PDF embedded font (sfnt) at offset 0x858A 5740 bytes
font_02_sfnt_off00009905.bin
658e7d8374a46d605e2a926d8c9b3f1ca094831f41365680bfa9815fa407beec		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9905 13732 bytes
font_03_sfnt_off0000c1fb.bin
7eda9a379fa0bd77cdfef960a91be0597e6c88eec67b490f52fe428760414a63		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC1FB 16260 bytes

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