Malicious PDF — malware analysis report

Static analysis result for SHA-256 25bcee2252eac227…

MALICIOUS

PDF

37.0 KB Created: 2020-08-02 09:18:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7dd1bbc26aa36c0082db4b9bbc6649b4 SHA-1: 7dd3ffd06a013e9f4a124c792f01b1b8cdc01404 SHA-256: 25bcee2252eac2274e52d1a0b1bc02b0a9ef3bbb72dc28912a83fcc0a328c06f
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=how+do+you+do+gamerule+keepinventory'. This URL is likely used to redirect the user to a malicious site. The document also contains a large number of embedded URLs, many hosted on Shopify, which is indicative of a link farm or SEO poisoning tactic. No scripts were extracted, but the presence of the malicious redirector suggests a phishing or social engineering attempt.

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.com/pify?keyword=how+do+you+do+gamerule+keepinventory
    • http://files.cachemakers.org/uploads/1/3/1/4/131406885/d08d9ac9.pdf
    • http://files.victoriabaker.net/uploads/1/3/1/6/131606111/7e259b41744.pdf
    • http://files.en.sensoryum.ca/uploads/1/3/0/7/130738998/653aa6cb2e.pdf
    • http://files.iooftxgreaterhouston.org/uploads/1/3/0/8/130874029/2447374.pdf
    • https://cdn.shopify.com/s/files/1/0429/4439/7471/files/5936934868.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/wanojexabe.pdf
    • https://cdn.shopify.com/s/files/1/0438/8637/9160/files/pulufirajawobadixijivasas.pdf
    • https://cdn.shopify.com/s/files/1/0432/6758/8252/files/18981323103.pdf
    • https://cdn.shopify.com/s/files/1/0437/0484/4442/files/33973552202.pdf
    • https://cdn.shopify.com/s/files/1/0433/2758/6472/files/sesava.pdf
    • https://cdn.shopify.com/s/files/1/0433/6127/1959/files/kayla_itsines_guides_free.pdf
    • https://cdn.shopify.com/s/files/1/0434/2389/1618/files/85737744775.pdf
    • https://cdn.shopify.com/s/files/1/0435/2724/1887/files/poxenokotoziraniz.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zejakepujubuk.pdf
    • https://cdn.shopify.com/s/files/1/0428/4963/2412/files/40162579729.pdf
    • https://cdn.shopify.com/s/files/1/0430/5456/3477/files/jozixewuli.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/wadilizesiwegokadokepub.pdf
    • https://cdn.shopify.com/s/files/1/0430/8061/4041/files/bifidarimirezikafojomuwut.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_off000051ae.bin
1913d34915be8cd0ed1676ce3fa981d589f3ea8b861f1ce0362738b599fa1398
pdf-font-stream PDF embedded font (sfnt) at offset 0x51AE 5380 bytes
font_01_sfnt_off00006403.bin
dfd24154dfefa51b0b6e612ea26f749772389315e528fb5d8a45af52fae336eb
pdf-font-stream PDF embedded font (sfnt) at offset 0x6403 10236 bytes