Malicious PDF — malware analysis report

Static analysis result for SHA-256 e2425be4279a5234…

MALICIOUS

PDF

50.7 KB Created: 2020-07-09 20:55:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a21a5d76d7587a45d88aa326304d4fcb SHA-1: a80dcc8708a877b60c6956d1cf112bb0c2a66a89 SHA-256: e2425be4279a5234e7e885082768b8bc9bf63402d71c77626419b8fb21df9e69
128 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded links, masquerading as an e-paper, which are designed to redirect users to malicious infrastructure. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK specifically flags the initial redirector URL, and PDF_SEO_LINK_FARM indicates a mass of external links. The presence of a 'download button' lure further supports a malicious intent to trick users into navigating to these links.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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/wb?keyword=amar%20ujala%20epaper%20today%20pdf
    • http://files.alifeworthliving2.org/uploads/1/3/0/8/130874318/lenalaw-fowez-legojumafixixin-tunotababivofen.pdf
    • http://files.camera1.ca/uploads/1/3/1/3/131380413/pizixejawij.pdf
    • http://files.zoegreenband.com/uploads/1/3/0/7/130776076/zamuwibe-kugifuniroma.pdf
    • http://files.noelsylvester.com/uploads/1/3/1/3/131384573/3772628.pdf
    • http://files.patagonianhands.com/uploads/1/3/0/9/130969674/mufari_kilidul_wewigoze.pdf
    • http://files.consultaire.co.za/uploads/1/3/2/3/132302987/9215950.pdf
    • http://files.siobhanmcgibbon.com/uploads/1/3/1/8/131857193/babetanugojer_sofituzapumuse_tojinuxexogaz_jojufage.pdf
    • http://files.nakedtotheworld.com/uploads/1/3/2/8/132814473/e4d86948.pdf
    • http://files.americanfoursquare.us/uploads/1/3/2/7/132740218/majibomavapakabopi.pdf
    • https://dofumotajefi.files.wordpress.com/2020/06/marewi.pdf
    • https://xevubimeroz.files.wordpress.com/2020/06/83553014672.pdf
    • https://gesinabe.files.wordpress.com/2020/07/12537680289.pdf
    • https://wuxafojibom.files.wordpress.com/2020/06/bugetowi.pdf
    • https://jajexulobuta.files.wordpress.com/2020/06/pumojupatu.pdf
    • https://bawekiweduv.files.wordpress.com/2020/06/zilojutezatavotunot.pdf
    • https://jilopurem296707225.files.wordpress.com/2020/07/42478451968.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/71061356311.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/dutevitijenunolekegek.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/81236671698.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_off000070bf.bin
76a146bd7046817c53e0d84c82f0aaa9a5cb927355be0c758a852f73578d7ef1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x70BF 4904 bytes
font_01_sfnt_off00008180.bin
81cee76069f1d5e57bb43cc79b6bba108ab559687534069d748ad94c6401c162		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8180 10492 bytes
font_02_sfnt_off0000a54a.bin
d45b37148118489f7ca2acd6d6debe41862447fe47edd8dfc59a68242a3ebfc3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA54A 7396 bytes

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