Malicious PDF — malware analysis report

Static analysis result for SHA-256 d6a2b7d15ca34288…

MALICIOUS

PDF

40.9 KB Created: 2020-08-30 18:08:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 13d134ddf3c9ed97fccf43b09320361b SHA-1: 9d9c26cfb1c2df59c4c0e0c00b898cab7aa8653f SHA-256: d6a2b7d15ca3428846a87a797933845e05c4b941e201e38cfc917c2b28977569
128 Risk Score

Malware Insights

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

The PDF file contains a lure related to downloading Windows 7 updates, which is a common tactic for phishing or malware delivery. It embeds a link that redirects to a known malicious domain (ttraff.com), indicating a phishing or redirection attempt. The presence of numerous other PDF links, many hosted on cdn.shopify.com, suggests a link farm designed to improve search engine ranking for malicious content or to obscure the true destination.

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/wix?keyword=where+to+download+all+of+windows+7+professional+64+bit+updates
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/fimovubonivunab.pdf
    • https://cdn.shopify.com/s/files/1/0438/4597/6224/files/54388430.pdf
    • https://cdn.shopify.com/s/files/1/0432/5838/0446/files/42582456537.pdf
    • https://static.usrfiles.com/ugd/b8c837_2fb4484087e64ace9d7fdfd0b98e83e3.pdf
    • https://static.usrfiles.com/ugd/8b9728_66eaa080b5d341b5a6ce5ee26931c45d.pdf
    • https://static.usrfiles.com/ugd/f84671_9884e9fa7b3e4addbdecdd70a606b5ff.pdf
    • https://cdn.shopify.com/s/files/1/0437/0222/3013/files/modal_verbs_possibility_and_probability_exercises.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/23063093424.pdf
    • https://cdn.shopify.com/s/files/1/0432/6372/1637/files/xijiwotewu.pdf
    • https://cdn.shopify.com/s/files/1/0432/9363/8816/files/65496867679.pdf
    • https://cdn.shopify.com/s/files/1/0440/6027/8936/files/litecoin_mining_rig_guide.pdf
    • https://static.usrfiles.com/ugd/0d9a50_34a5b48e1f7745b196ac3f10058298b7.pdf
    • https://static.usrfiles.com/ugd/b8c837_24e161106c194280bc354221f0f6fc7c.pdf
    • https://static.usrfiles.com/ugd/345929_b18cd6687dce431683aa44d44fbd91f0.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_off00005f7a.bin
17336e32c68bd051cb9fb44b30d566d4efd8dadcfb86f50d0190f9e453a2c979
pdf-font-stream PDF embedded font (sfnt) at offset 0x5F7A 5696 bytes
font_01_sfnt_off000072fd.bin
f87c4062524bca4af92bdc95f6a53220c00483a6c33dc4cf0dd9fad53cd79cd9
pdf-font-stream PDF embedded font (sfnt) at offset 0x72FD 10364 bytes