Malicious PDF — malware analysis report

Static analysis result for SHA-256 3385469ee0a02193…

MALICIOUS

PDF

34.1 KB Created: 2020-08-06 22:48:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3ac247fdd058eb19c692bd4848f5321d SHA-1: 09f498e144cecf9829c4f5914fea7f207ed9c8e8 SHA-256: 3385469ee0a02193721896bc6ece4f5693e9ed04b1db7c520096f4ebc59072b0
120 Risk Score

Malware Insights

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

The PDF contains a link farm designed to redirect users to malicious infrastructure, specifically identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The primary malicious URL is https://ttraff.com/pify?keyword=archetypes+and+motifs+in+folklore+and+literature+a+handbook+pdf. While the document body suggests a lure related to a handbook, the actual payload delivery mechanism is through the embedded malicious link.

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=archetypes+and+motifs+in+folklore+and+literature+a+handbook+pdf
    • http://files.workingmumdiary.com/uploads/1/3/1/1/131164236/6695639.pdf
    • http://files.zakeryrey.com/uploads/1/3/0/7/130776887/sifikusidefinurinek.pdf
    • http://gijowu.rscareersupport.org/uploads/1/3/0/8/130874431/2901092.pdf
    • https://cdn.shopify.com/s/files/1/0433/8761/7447/files/54224166256.pdf
    • https://cdn.shopify.com/s/files/1/0431/0102/8503/files/99894433373.pdf
    • https://cdn.shopify.com/s/files/1/0430/2585/8723/files/20160544732.pdf
    • https://cdn.shopify.com/s/files/1/0437/1644/4311/files/13406038400.pdf
    • https://cdn.shopify.com/s/files/1/0434/4319/1969/files/12987185627.pdf
    • https://cdn.shopify.com/s/files/1/0430/1042/4993/files/24415921054.pdf
    • https://cdn.shopify.com/s/files/1/0432/3000/3367/files/puxatapinojatidisakowubiw.pdf
    • https://cdn.shopify.com/s/files/1/0431/7564/1247/files/57445512890.pdf
    • https://cdn.shopify.com/s/files/1/0438/3080/4637/files/zemukemawotetudosusiv.pdf
    • https://cdn.shopify.com/s/files/1/0435/8150/5695/files/vodepawanobenakubezadi.pdf
    • https://cdn.shopify.com/s/files/1/0434/0016/7589/files/48488285414.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_off000045a4.bin
6bea3f035c5d6e46a3f1bef72731e24b5f0fbcf70c01c0fae1a8564c6540dad4
pdf-font-stream PDF embedded font (sfnt) at offset 0x45A4 5688 bytes
font_01_sfnt_off000058dd.bin
c97bc1531ad9cdf21488bd3ba877a8fd7444d99f8296c5ac6d089482893e93ae
pdf-font-stream PDF embedded font (sfnt) at offset 0x58DD 9516 bytes