Malicious PDF — malware analysis report

Static analysis result for SHA-256 a228db7f78436405…

MALICIOUS

PDF

44.8 KB Created: 2020-08-16 18:39:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 63a838f0e2114be3271b9a3d316ec429 SHA-1: b6827ec61a615fc8a24e6941bbd76cd57f3241f2 SHA-256: a228db7f78436405b9f3cc161f174f2d386ddf932fe86ca6f03cc452038512b4
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to Shopify domains, but one critical link directs to `ttraff.ru`, a known malicious redirector. The document body contains a movie song title, likely a lure to entice users to click the malicious links. The presence of a malicious redirector suggests an attempt to lead the user to a phishing or malware distribution site.

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=bayalu+daari+movie+song
    • http://jurexasu.itsharryclarke.com/uploads/1/3/2/3/132303382/xuwifuxarowij.pdf
    • http://files.ppsvision.org/uploads/1/3/2/6/132683154/wufobexafejovama.pdf
    • https://cdn.shopify.com/s/files/1/0431/5031/1581/files/fanarisutirufi.pdf
    • https://cdn.shopify.com/s/files/1/0432/3105/1943/files/39782969265.pdf
    • https://cdn.shopify.com/s/files/1/0435/4975/3507/files/bapeladatafutuv.pdf
    • https://cdn.shopify.com/s/files/1/0449/9944/2590/files/double_cardan_joint.pdf
    • https://cdn.shopify.com/s/files/1/0431/8072/0294/files/70652718057.pdf
    • https://cdn.shopify.com/s/files/1/0433/3325/5323/files/kugijowafalewefado.pdf
    • https://cdn.shopify.com/s/files/1/0433/3033/8966/files/4chan_tripcode_generator.pdf
    • https://cdn.shopify.com/s/files/1/0430/3863/8241/files/beauty_s_release.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/27984898694.pdf
    • https://cdn.shopify.com/s/files/1/0431/3025/7568/files/4777166940.pdf
    • https://cdn.shopify.com/s/files/1/0429/7188/9815/files/10063398264.pdf
    • https://cdn.shopify.com/s/files/1/0450/2857/3334/files/ser_bachiller_enero_2020.pdf
    • https://cdn.shopify.com/s/files/1/0432/7545/2569/files/lil_boosie_face_down_download.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_off00005c32.bin
a64988e2263f0a2f7dbe4af28a66c2cf540203e4ca75677696301492b5f7cedd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5C32 5156 bytes
font_01_sfnt_off00006da2.bin
bc14b0893b8732d17f0ee71d2731436d19488ba6ff3a3b52a73e161bfd134da4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6DA2 13684 bytes
font_02_sfnt_off000098de.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x98DE 4324 bytes

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