Malicious PDF — malware analysis report

Static analysis result for SHA-256 06867d1c9b00086a…

MALICIOUS

PDF

41.7 KB Created: 2020-08-21 07:22:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f579d84a08c70e3f6a90d8ec318a7e3e SHA-1: 5be82ccf2ba5e142ca68487d021530bc949e9294 SHA-256: 06867d1c9b00086a224a9af9d5d8a1170aa90856042e6cb408df3eefbd51eb52
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a link farm and a direct link to a known malicious redirector, indicating an attempt to lure users to malicious content. The ML classifier strongly flagged this PDF as malicious. The embedded URLs suggest a phishing or content-luring scheme, likely involving the distribution of further malicious content or redirection to scam sites.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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.cc/pify?keyword=dashing+cm+bharat+movie++480p
    • http://files.outreachchemistrycloud.com/uploads/1/3/0/9/130969573/lusivutabanuruwosi.pdf
    • http://files.wildwoodoutfitterspa.com/uploads/1/3/2/7/132712139/sukupifadijavipe.pdf
    • http://gegawifu.wallysdesertturtle.com/uploads/1/3/0/9/130969054/gulubuxaduv.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0437/6317/1485/files/83541113058.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rirolor.pdf
    • https://cdn.shopify.com/s/files/1/0432/2358/0839/files/16940621391.pdf
    • https://cdn.shopify.com/s/files/1/0428/8030/3270/files/zigozo.pdf
    • https://cdn.shopify.com/s/files/1/0434/9739/0244/files/45570469030.pdf
    • https://cdn.shopify.com/s/files/1/0429/4003/9324/files/fallout_4_45-_70.pdf
    • https://cdn.shopify.com/s/files/1/0429/9243/5359/files/amnesia_anterograda.pdf
    • https://cdn.shopify.com/s/files/1/0429/6255/0940/files/15236843756.pdf
    • https://cdn.shopify.com/s/files/1/0433/7614/8638/files/37379170691.pdf
    • https://cdn.shopify.com/s/files/1/0432/9019/8180/files/applied_mergers_and_acquisitions_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0429/9263/1962/files/473433303.pdf
    • https://cdn.shopify.com/s/files/1/0431/6944/8096/files/size_dependent_properties_of_nanomaterials.pdf
    • https://cdn.shopify.com/s/files/1/0431/8865/0142/files/87763250642.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/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000061e9.bin
ecf09535260cc58aca7b44fe38218d2a9bf6a1389151980adee0cc1bbc6844f8
pdf-font-stream PDF embedded font (sfnt) at offset 0x61E9 5936 bytes
font_01_sfnt_off000075fe.bin
b193e5a2139bdf7417efadee4dd8456c434bad438b7d7849da09c35fbf7cd144
pdf-font-stream PDF embedded font (sfnt) at offset 0x75FE 10576 bytes