Malicious PDF — malware analysis report

Static analysis result for SHA-256 8952ea809cfca7b2…

MALICIOUS

PDF

39.5 KB Created: 2020-09-19 23:51:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 923a080ffad07fedf15dd933e292558d SHA-1: 6888ebae7835da48cd07af3383338cdfe78af77f SHA-256: 8952ea809cfca7b2a18a202668993986210ff70025965e1cbaa3194c6cf2f3a7
120 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link disguised as a product search query for 'black and decker grass hog xp replacement spool'. It also features a link farm of 16 external PDF links, many hosted on file-sharing services, likely for SEO manipulation or to obscure the primary malicious destination. The primary malicious URL is https://ttraff.club/wix. No scripts were extracted from this sample.

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.club/wix?keyword=black+and+decker+grass+hog+xp+replacement+spool
    • http://zuxum.growingpages.com/uploads/1/3/2/6/132681352/e9b375dd0ba4.pdf
    • http://files.decodingdyslexia-az.com/uploads/1/3/1/4/131437677/makutujevojed-jobami-lobudujawire-xusemamul.pdf
    • http://files.ladymarigold.com/uploads/1/3/0/7/130775840/3585032.pdf
    • http://files.anygivenchildharrisonburg.org/uploads/1/3/0/8/130814003/busurab-ranewapi-zegafexuwog-fejomunevifora.pdf
    • http://tisori.autoprintomaha.com/uploads/1/3/1/4/131438216/3b94faa7b23c.pdf
    • https://5c405b81-aa81-4606-a0e8-aa1402de5a93.filesusr.com/ugd/6924eb_d65502ba26a244aab4b2f553fc5ff6fd.pdf?index=true
    • https://cd32a2e6-bdb3-4360-b503-985eabbbb028.filesusr.com/ugd/10e3af_201e3fd5d64547cb80d41549255659ff.pdf?index=true
    • https://b85ca0bb-8f14-445a-9921-5d4f5c08df39.filesusr.com/ugd/90661f_11bd0b834205465f9eda296064ac4b41.pdf?index=true
    • https://eb2fc0e5-3c72-428f-83ee-ac0caced3a8e.filesusr.com/ugd/221eaa_27d16db956b44ac09766a7b851e9a66b.pdf?index=true
    • https://cdn.shopify.com/s/files/1/0427/8052/4710/files/gabazakirejuserutewokan.pdf
    • https://cdn.shopify.com/s/files/1/0431/0489/5143/files/94644358503.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/78214852322.pdf
    • https://cdn.shopify.com/s/files/1/0429/0464/9884/files/43444768109.pdf
    • https://cdn.shopify.com/s/files/1/0430/9326/2487/files/22326090977.pdf
    • https://cdn.shopify.com/s/files/1/0427/4746/1788/files/fepezupuxapedivul.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/49186839350.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_off00004d52.bin
dcd93bf258d8f4d5abbef592920185f8591129fb309865ce35867e9f09c17bf6
pdf-font-stream PDF embedded font (sfnt) at offset 0x4D52 5408 bytes
font_01_sfnt_off00005f85.bin
2ee6c3d0267f6339266de0931c59478f7e23ff3c829d16330a02c49075cb1766
pdf-font-stream PDF embedded font (sfnt) at offset 0x5F85 10228 bytes
font_02_sfnt_off00008294.bin
1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e
pdf-font-stream PDF embedded font (sfnt) at offset 0x8294 4324 bytes