Malicious PDF — malware analysis report

Static analysis result for SHA-256 875cd9d606e0545e…

MALICIOUS

PDF

44.1 KB Created: 2020-07-09 05:09:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 42e4c913f820aad067474382c3f03e6e SHA-1: 238cc39438c529743e5f7b08aa782a9c3a32ffd1 SHA-256: 875cd9d606e0545efa17d98f5d907faae7cde1a703be00a147298067ecfa297f
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to external websites. One critical heuristic firing indicates that these links lead to known malicious redirector infrastructure. The document body, while containing garbled text, also includes the URL https://ttraff.com/wb?keyword=bullish%20and%20bearish%20chart%20patterns%20pdf, which is flagged as malicious. This suggests the document is designed to redirect users to potentially harmful sites, likely for phishing or malware distribution.

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/wb?keyword=bullish%20and%20bearish%20chart%20patterns%20pdf
    • http://files.pamsteashoppe.com/uploads/1/3/1/3/131384789/59b03f6f49c09c.pdf
    • http://files.snobz.co/uploads/1/3/1/3/131383982/df3c80.pdf
    • http://files.fitnessfactory1.com/uploads/1/3/0/7/130739567/3499249.pdf
    • http://files.polktwp.com/uploads/1/3/0/8/130813546/fasal-sorek-kuxopusonaminam.pdf
    • http://files.innerheartpathways.com/uploads/1/3/2/6/132681002/46e9335.pdf
    • http://files.vexsens.com/uploads/1/3/0/7/130775846/waforumuwanaxogudo.pdf
    • http://files.eguastella.com/uploads/1/3/1/8/131871690/4656610.pdf
    • http://files.familylawyerminnesota.com/uploads/1/3/1/6/131607712/jubigi_vomikewupinoz.pdf
    • http://files.fnaq.org/uploads/1/3/0/9/130969944/nivubuluro.pdf
    • https://jigofewiw.files.wordpress.com/2020/06/bavibidaxaxevedixetowoka.pdf
    • https://tumolodiku.files.wordpress.com/2020/06/vudugetiruvi.pdf
    • https://wurumopo.files.wordpress.com/2020/06/88639920738.pdf
    • https://fajebatisik.files.wordpress.com/2020/07/38607421686.pdf
    • https://katazixabat.files.wordpress.com/2020/07/tifuvamepafe.pdf
    • https://mijukuwojaw.files.wordpress.com/2020/06/rufitenipovidakedemoba.pdf
    • https://gamikedunodu.files.wordpress.com/2020/06/84769303811.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/sakemiribukewud.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/juzopuzenafososokazulu.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/31321710084.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_off00006f30.bin
5168245d7770ce5018f069872026229d7abd9e8e1a6767419151d7eed9706da2
pdf-font-stream PDF embedded font (sfnt) at offset 0x6F30 5204 bytes
font_01_sfnt_off000080c1.bin
a260e11611fdeeef83064bad02d091b48e8042c6b16da9e503460dc333e6e09d
pdf-font-stream PDF embedded font (sfnt) at offset 0x80C1 10056 bytes