Malicious PDF — malware analysis report

Static analysis result for SHA-256 f5472de12156fa50…

MALICIOUS

PDF

43.8 KB Created: 2020-08-16 18:27:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3b8f44dc66dd5b700172a1a56ffaf9bf SHA-1: ef0de860b424f1576a28c3a10283b083eabab0a4 SHA-256: f5472de12156fa5023ebb38bce9911ecae84e93d7be38b04c1f3be92e405805f
120 Risk Score

Malware Insights

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

The PDF was flagged for containing a malicious redirector link and a large number of external links, suggesting an attempt at SEO manipulation or a link farm to distribute malicious content. The primary malicious URL identified is https://ttraff.ru/pify?keyword=bible+kjv+for+nokia+e63. No scripts were extracted from this sample, and the document body contained mostly garbled data and URLs.

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.ru/pify?keyword=bible+kjv+for+nokia+e63
    • http://files.darowbooks.com/uploads/1/3/0/8/130874197/9263034.pdf
    • http://files.pizzatimewestbrook.com/uploads/1/3/0/8/130874594/pukoxuwekiputul.pdf
    • http://files.mountainbikeashburton.co.nz/uploads/1/3/2/7/132712093/7295386.pdf
    • http://files.oldfieldcellars.com.au/uploads/1/3/2/3/132303315/2329370.pdf
    • http://files.tinablanck.com/uploads/1/3/0/7/130739744/luvebututipe-nokulemeku.pdf
    • https://cdn.shopify.com/s/files/1/0427/7973/8278/files/panofazojadu.pdf
    • https://cdn.shopify.com/s/files/1/0428/1267/0111/files/birevojoxujimal.pdf
    • https://cdn.shopify.com/s/files/1/0430/7006/2754/files/mozajiwi.pdf
    • https://cdn.shopify.com/s/files/1/0431/6912/0413/files/pegijizowitetuwabusumuz.pdf
    • https://cdn.shopify.com/s/files/1/0434/0563/9836/files/bellum_catilinae.pdf
    • https://cdn.shopify.com/s/files/1/0435/3048/5915/files/49336320572.pdf
    • https://cdn.shopify.com/s/files/1/0427/4746/1788/files/dummit_and_foote_solution.pdf
    • https://cdn.shopify.com/s/files/1/0430/7160/2855/files/pidotigorotedakexodajidul.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/20659662050.pdf
    • https://cdn.shopify.com/s/files/1/0431/1633/1172/files/sebisi.pdf
    • https://cdn.shopify.com/s/files/1/0437/9151/5808/files/rilavomimomepapagov.pdf
    • https://cdn.shopify.com/s/files/1/0431/0469/8535/files/bacteriology_short_notes.pdf
    • https://cdn.shopify.com/s/files/1/0437/3626/8949/files/ruger_1022_manual.pdf
    • https://cdn.shopify.com/s/files/1/0437/3676/0485/files/kapuwov.pdf
    • https://cdn.shopify.com/s/files/1/0431/5168/7837/files/kerulozevaxipuvolumazo.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_off00006b61.bin
e658b19d525319f887fbc366f0c4065963f0f5bd7fecdfda45ebb9012a21db94
pdf-font-stream PDF embedded font (sfnt) at offset 0x6B61 5292 bytes
font_01_sfnt_off00007d7b.bin
92a366e7b20ed65386dca97b7fba4ffbfb15a17a20c485b721619f8a602f10f7
pdf-font-stream PDF embedded font (sfnt) at offset 0x7D7B 10752 bytes