Malicious PDF — malware analysis report

Static analysis result for SHA-256 abb2b7c52a712ac5…

MALICIOUS

PDF

65.7 KB Created: 2020-08-09 17:37:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7e18dca5f58bc571aa6684201fa13c56 SHA-1: 5b93ca94b7720b8b60d8e7661e9ccce2fdacf8c2 SHA-256: abb2b7c52a712ac53df8886e12e0ae4eefdd8ca7abecf87ea782184b6be2d8c9
120 Risk Score

Malware Insights

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

The PDF contains a link that redirects to a known malicious domain, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains the same URL as the redirector. The PDF_SEO_LINK_FARM heuristic indicates a large number of outbound links, suggesting a link farm or SEO poisoning attempt to drive traffic to malicious sites. The primary malicious IOC is the redirector URL.

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=tratamiento+de+neoplasia+intraepitelial+cervical+pdf
    • http://files.butteranchenterprises.com/uploads/1/3/0/9/130969403/zuliv.pdf
    • http://files.peopleschurchtruro.com/uploads/1/3/1/8/131871484/nimorelupapug-kikitex.pdf
    • http://files.djtigerlily.net/uploads/1/3/1/3/131380480/39532e.pdf
    • http://files.lightbringerlabs.com/uploads/1/3/1/3/131398258/ganutuvapom.pdf
    • http://lewafagu.animalsaretoocute.com/uploads/1/3/2/3/132302780/togogujubigitu_zisezadode_rezenamimek.pdf
    • https://cdn.shopify.com/s/files/1/0432/3724/5085/files/nefobunuwus.pdf
    • https://cdn.shopify.com/s/files/1/0429/1559/4393/files/suzeb.pdf
    • https://cdn.shopify.com/s/files/1/0431/3323/9457/files/pofirotaja.pdf
    • https://cdn.shopify.com/s/files/1/0435/3759/6575/files/gaxivuvivebisubof.pdf
    • https://cdn.shopify.com/s/files/1/0433/0625/4504/files/julaxalolerozonejitu.pdf
    • https://cdn.shopify.com/s/files/1/0430/0269/1743/files/nebidubaforomozamud.pdf
    • https://cdn.shopify.com/s/files/1/0429/4216/9244/files/perorudagomigawukiwadizep.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/kipisoluni.pdf
    • https://cdn.shopify.com/s/files/1/0427/8226/1415/files/negojugon.pdf
    • https://cdn.shopify.com/s/files/1/0438/4066/7808/files/hernia_inguinal_y_femoral.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/8584587797.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_off0000b643.bin
8e5ca16eab88f76f92f45f7030efaca5fd77e78002a3a245b89799a9ed96b6c7
pdf-font-stream PDF embedded font (sfnt) at offset 0xB643 5100 bytes
font_01_sfnt_off0000c77d.bin
42eb2c592d376e5fec590d2b7da544a449f5a9901707d86e0b427e6be434a336
pdf-font-stream PDF embedded font (sfnt) at offset 0xC77D 10360 bytes
font_02_sfnt_off0000eada.bin
ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3
pdf-font-stream PDF embedded font (sfnt) at offset 0xEADA 4324 bytes