Malicious PDF — malware analysis report

Static analysis result for SHA-256 99b87279b050e201…

MALICIOUS

PDF

43.6 KB Created: 2020-08-08 23:31:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1d4fe0f512b26b51ecba0aa924e5b658 SHA-1: da9140fc18213b9d3a3440f6b9b488ff71031f4e SHA-256: 99b87279b050e201297ac94cd34ceb6cc2dead4d0ec083da73c337bd9d41949d
160 Risk Score

Malware Insights

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

The PDF file exhibits characteristics of an advance-fee scam, using lures related to prizes and courier delivery. It contains a high number of embedded links, with at least one identified as a malicious redirector hosted on ttraff.ru. The document's content and structure strongly suggest a social engineering attempt to trick users into visiting malicious sites or engaging in fraudulent schemes.

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.
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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.ru/pify?keyword=powered+by+the+apocalypse+system+pdf
    • http://files.positivelyobedientcanines.com/uploads/1/3/1/8/131871740/gerosekopob-gusemezer.pdf
    • http://files.agcompa.com/uploads/1/3/2/6/132683188/demasirij.pdf
    • http://files.augsburgtoledo.org/uploads/1/3/0/7/130776886/tifemowegajo.pdf
    • https://cdn.shopify.com/s/files/1/0437/8948/4190/files/waribojovejirejekuxe.pdf
    • https://cdn.shopify.com/s/files/1/0435/9146/7176/files/4095061707.pdf
    • https://cdn.shopify.com/s/files/1/0432/0670/5311/files/belajar_bahasa_thailand_dan_tulisannya.pdf
    • https://cdn.shopify.com/s/files/1/0428/0428/1511/files/fejofe.pdf
    • https://cdn.shopify.com/s/files/1/0431/8933/8276/files/fanadiraxunupa.pdf
    • https://cdn.shopify.com/s/files/1/0428/9029/7507/files/53492723846.pdf
    • https://cdn.shopify.com/s/files/1/0433/7431/3621/files/certification_of_trust.pdf
    • https://cdn.shopify.com/s/files/1/0434/5122/0120/files/eu_creio_pequeno_catecismo_catlico.pdf
    • https://cdn.shopify.com/s/files/1/0431/7220/0605/files/fiwuji.pdf
    • https://cdn.shopify.com/s/files/1/0435/5158/8507/files/bazamexisowusipabidi.pdf
    • https://cdn.shopify.com/s/files/1/0434/6943/9141/files/maulid_burdah.pdf
    • https://cdn.shopify.com/s/files/1/0429/8833/9354/files/61834025213.pdf
    • https://cdn.shopify.com/s/files/1/0430/5109/0077/files/wuvabel.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_off000069fb.bin
b36f6133865a7a72aa57a29050612233a4f33b8cf6e0a05fc2c11569ceb186e9
pdf-font-stream PDF embedded font (sfnt) at offset 0x69FB 5728 bytes
font_01_sfnt_off00007d5f.bin
a89872aaf960e4abd6b9b4e55debb12d05dd22162e0e75a94826ad85259a097a
pdf-font-stream PDF embedded font (sfnt) at offset 0x7D5F 10708 bytes