Malicious PDF — malware analysis report

Static analysis result for SHA-256 e165a9059bbf0625…

MALICIOUS

PDF

41.7 KB Created: 2020-08-11 12:42:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 70e344b5524c549542c8f59f932ef5d5 SHA-1: e267d6c1ecce8390812a4d893a52d614d27b5467 SHA-256: e165a9059bbf0625eb16bd36cd2bd3b01f5f3a85665fc48c11026d763873f37b
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, pointing to `https://ttraff.ru/pify?keyword=english+teaching+methods+and+approaches+pdf`. This URL is embedded within the document body, suggesting a lure to trick users into clicking it. The PDF also exhibits characteristics of a link farm, with numerous embedded links, many of which point to benign Shopify domains, but the primary malicious link is the clear indicator of compromise. 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.ru/pify?keyword=english+teaching+methods+and+approaches+pdf
    • http://devuk.foundationschurch.com/uploads/1/3/1/6/131607600/2654940b6c049.pdf
    • http://disiripe.24hoursforkaitlyn.com/uploads/1/3/1/6/131606027/aa1f53980bf.pdf
    • http://zedav.nddistrictyouth.org.uk/uploads/1/3/1/3/131384771/kedikesele-matav.pdf
    • http://xivepotot.vfmh.org.uk/uploads/1/3/1/0/131070872/fofibisagapokuki.pdf
    • http://files.pauseconnect.com/uploads/1/3/1/3/131379567/9470863.pdf
    • https://cdn.shopify.co
    • https://cdn.shopify.com/s/files/1/0429/8545/5769/files/kubota_operators_manual_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0443/3071/3244/files/gordis_epidemiologia_5ta_edicion.pdf
    • https://cdn.shopify.com/s/files/1/0435/6925/0463/files/36481714451.pdf
    • https://cdn.shopify.com/s/files/1/0432/7263/4533/files/beautiful_in_white_chords_piano.pdf
    • https://cdn.shopify.com/s/files/1/0431/8229/3141/files/21234618255.pdf
    • https://cdn.shopify.com/s/files/1/0430/2825/0781/files/74559897733.pdf
    • https://cdn.shopify.com/s/files/1/0429/3863/0300/files/87679827194.pdf
    • https://cdn.shopify.com/s/files/1/0433/2666/8952/files/lopafisujesozin.pdf
    • https://cdn.shopify.com/s/files/1/0439/8543/6830/files/10351150470.pdf
    • https://cdn.shopify.com/s/files/1/0435/8701/0715/files/hi_standard_double_nine.pdf
    • https://cdn.shopify.com/s/files/1/0435/5158/8507/files/nirosafalafif.pdf
    • https://cdn.shopify.com/s/files/1/0433/0032/3478/files/potajezezelof.pdf
    • https://cdn.shopify.com/s/files/1/0427/9474/6023/files/endogenous_growth_theory_paul_romer.pdf
    • https://cdn.shopify.com/s/files/1/0432/1987/8048/files/formal_and_informal_email_writing.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_off00006500.bin
97e11afc98368fa3486c6d39561881029b5fb317f25c0699c2101c7efd11e404
pdf-font-stream PDF embedded font (sfnt) at offset 0x6500 5524 bytes
font_01_sfnt_off0000779b.bin
7dcc655e1f46cbf5f5f6a611cd242f28bcd34ce3e146c5af53c80ca945a2d105
pdf-font-stream PDF embedded font (sfnt) at offset 0x779B 9952 bytes