Malicious PDF — malware analysis report

Static analysis result for SHA-256 27c3b1e3a1884037…

MALICIOUS

PDF

44.5 KB Created: 2020-08-02 22:27:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 74ef350f80357208540661eb077b0b95 SHA-1: 7c1c8b4d3431471048c595b26aaa680fc017fb69 SHA-256: 27c3b1e3a188403700f71bd4f69795e353ae11d85a0d9ac64bf24561664bd86c
128 Risk Score

Malware Insights

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

The PDF contains a link farm and a specific malicious redirector URL, indicating a phishing or scam attempt. The document body, though heavily obfuscated, contains text related to 'sims 4' and a download lure, suggesting the attacker is using a popular game as bait. The primary malicious IOC is the ttraff.com redirector, which is likely used to funnel victims to further 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.
  • 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=remove+mosaic+blur+sims+4
    • http://files.jenniferbiedermannjewelry.com/uploads/1/3/1/8/131872079/4434479.pdf
    • http://files.annagalatirealtor.com/uploads/1/3/0/7/130776718/979473.pdf
    • http://files.tobymarthews.com/uploads/1/3/1/4/131406036/4853313.pdf
    • https://cdn.shopify.com/s/files/1/0437/8283/2280/files/52026116671.pdf
    • https://cdn.shopify.com/s/files/1/0430/0275/7281/files/17469513959.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mudamizoxudaxusuzo.pdf
    • https://cdn.shopify.com/s/files/1/0431/1141/5962/files/pubosugewo.pdf
    • https://cdn.shopify.com/s/files/1/0432/3082/2555/files/44888396058.pdf
    • https://cdn.shopify.com/s/files/1/0434/3519/6568/files/63870772984.pdf
    • https://cdn.shopify.com/s/files/1/0432/5349/8019/files/73181809892.pdf
    • https://cdn.shopify.com/s/files/1/0432/2318/7614/files/57680363964.pdf
    • https://cdn.shopify.com/s/files/1/0429/0802/4985/files/48954995421.pdf
    • https://cdn.shopify.com/s/files/1/0434/3404/9703/files/xigumifumemafejobotalep.pdf
    • https://cdn.shopify.com/s/files/1/0433/9017/3349/files/zuwogimuwux.pdf
    • https://cdn.shopify.com/s/files/1/0431/8520/9506/files/78189172767.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_off00006018.bin
6b33ff188d28154d6dbdbf812d80b7b44c2f9bc5adfe8bd5e5c9793c1c79fec7
pdf-font-stream PDF embedded font (sfnt) at offset 0x6018 6476 bytes
font_01_sfnt_off00007020.bin
1a24a32e828f5fafd4d2b435ad53a662a26d85a14b72e6a75510998bffaea263
pdf-font-stream PDF embedded font (sfnt) at offset 0x7020 5240 bytes
font_02_sfnt_off000081ea.bin
2f72c5e5a2c887f1007f368f04072bdcd524492849bffac683d6e1c326fa8d55
pdf-font-stream PDF embedded font (sfnt) at offset 0x81EA 10192 bytes