Malicious PDF — malware analysis report

Static analysis result for SHA-256 2575562cdfc8436d…

MALICIOUS

PDF

39.9 KB Created: 2020-07-29 11:03:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7878830cb77de6bb3319d51a74309062 SHA-1: b5c081a577dd206ef293a33d69f6709f4f9562aa SHA-256: 2575562cdfc8436d39010f6abb5add751f2264c703f7c7e5f689f94740bc70a9
120 Risk Score

Malware Insights

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

The PDF file contains a malicious redirector link pointing to 'ttraff.com', which is a known malicious domain. It also exhibits characteristics of a PDF SEO link farm, attempting to disguise itself as a legitimate download for 'Alternating current circuits corcoran pdf free download'. The primary intent appears to be to redirect users to malicious content through the embedded link.

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=alternating+current+circuits+corcoran+pdf+free+download
    • http://files.fpoworldwide.org/uploads/1/3/2/8/132814342/jimebu_pusuwetigelaveg_wifuseligudivo_rowiwajuwimogon.pdf
    • http://files.provenpurpose.net/uploads/1/3/0/7/130775033/xanaf-xotovelataguji.pdf
    • http://files.tumalofeedcosteakhouse.com/uploads/1/3/1/4/131406140/panevip.pdf
    • http://files.meadowcovehoa.com/uploads/1/3/0/8/130815228/suliwapokikeduw.pdf
    • http://files.gravattjewellery.com/uploads/1/3/1/8/131856105/3e05eabe.pdf
    • http://files.provenpurpose.net/uploads/1/3/0/7/13077
    • https://cdn.shopify.com/s/files/1/0429/5920/8604/files/58882928166.pdf
    • https://cdn.shopify.com/s/files/1/0434/9100/0472/files/98518955359.pdf
    • https://cdn.shopify.com/s/files/1/0433/1975/4907/files/16778294297.pdf
    • https://cdn.shopify.com/s/files/1/0432/6467/1909/files/japevijizedabanele.pdf
    • https://cdn.shopify.com/s/files/1/0430/2775/9257/files/xudifebekinufezilulezemo.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/pewobaropelizovijekozuji.pdf
    • https://cdn.shopify.com/s/files/1/0429/8512/8099/files/94196779639.pdf
    • https://cdn.shopify.com/s/files/1/0432/3901/4562/files/siwab.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/51220099535.pdf
    • https://cdn.shopify.com/s/files/1/0429/7926/2623/files/domimajinikemap.pdf
    • https://cdn.shopify.com/s/files/1/0436/1987/7024/files/jeporena.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_off00005da1.bin
ddf9f518831e86141ecc09f61d6ba0600b777aab75e7c041a58f811c6a50288b
pdf-font-stream PDF embedded font (sfnt) at offset 0x5DA1 5284 bytes
font_01_sfnt_off00006fb3.bin
be9b4f6c157ca2e3e0f6478fe1a86ef7c66655db4ee3e664abf50da7836fe17a
pdf-font-stream PDF embedded font (sfnt) at offset 0x6FB3 10052 bytes