Malicious PDF — malware analysis report

Static analysis result for SHA-256 b2a2fa4b366e5855…

MALICIOUS

PDF

34.5 KB Created: 2020-08-24 02:20:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 96dc8347f428fc3353711a8ae40b7aee SHA-1: 8036f06c7d80b84c3c5d26cd05926389d6665388 SHA-256: b2a2fa4b366e5855f3f0fbe96909433eff4eeae899d8aeb8899fdcadde3090b3
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains numerous embedded links, with a critical heuristic identifying a malicious redirector. The document body, though partially corrupted, contains text related to a 'California king platform bed modern' and includes the malicious URL. This suggests a phishing or scam attempt to redirect users to malicious infrastructure disguised as a product listing.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=california+king+platform+bed+modern
    • http://files.antoinettecarrier.com/uploads/1/3/1/3/131398517/muzujokopizolaw_debevijeluj_fatolewom.pdf
    • http://files.companychowfoodjunkies.net/uploads/1/3/1/6/131636855/fopozewevelazipa.pdf
    • http://fumap.socalttc.net/uploads/1/3/1/4/131406885/megiwikigof_xikimonejur.pdf
    • http://files.coastaldeliinc.com/uploads/1/3/1/6/131636972/sajozazeroxuvavuw.pdf
    • http://wipasa.azitamireshghi.com/uploads/1/3/0/7/130739349/ziditizematarad_rakosomuzot_webekuz.pdf
    • https://cdn.shopify.com/s/files/1/0436/3019/8937/files/givetipodesivafa.pdf
    • https://cdn.shopify.com/s/files/1/0433/1008/8360/files/sisimelebixaduxuta.pdf
    • https://cdn.shopify.com/s/files/1/0429/5029/5708/files/sherlock_season_3_episode_1.pdf
    • https://cdn.shopify.com/s/files/1/0449/2309/3147/files/princeton_blockchain_book.pdf
    • https://cdn.shopify.com/s/files/1/0435/2367/0176/files/zokijefejalufupupulas.pdf
    • https://cdn.shopify.com/s/files/1/0432/6758/8252/files/building_trust_in_teams.pdf
    • https://cdn.shopify.com/s/files/1/0435/3923/4967/files/rofoxufe.pdf
    • https://cdn.shopify.com/s/files/1/0435/2511/1972/files/wunijudoxepipujemugudid.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_off00004a45.bin
55ce1a80798ef06dc7226bcfb33fd9573b324f13e4fabf7b88dea983bd3827c8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4A45 5292 bytes
font_01_sfnt_off00005c25.bin
1f34591a1d2cdeefc3bbac37ca4792f508d92f3abf9400fa4d8fc120613606f4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5C25 9804 bytes

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