Malicious PDF — malware analysis report

Static analysis result for SHA-256 64aee7912a6576ae…

MALICIOUS

PDF

44.4 KB Created: 2020-07-31 21:35:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bcd382f7e5c2f04c79ed378dbc7c85e3 SHA-1: 48e58c0a88384678c584632f57a05dc6fa9807f2 SHA-256: 64aee7912a6576aea01f1e7b64e8a505c4468c793c21b2c93704d36a60f03831
154 Risk Score

Malware Insights

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

The PDF document contains a link to a known malicious redirector, disguised with keywords related to 'Super Mario Sunshine'. The document also hosts a large number of external PDF links, many of which point to Shopify-hosted files, suggesting a link farm or SEO manipulation tactic. The ML classifier strongly indicated maliciousness, and the presence of embedded URLs confirms the intent to redirect users to potentially harmful content.

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.ru/pify?keyword=super+mario+sunshine+rom
    • http://files.rtcpro.com/uploads/1/3/1/3/131380126/gofuzi.pdf
    • http://files.firstchurchnyc.net/uploads/1/3/1/8/131856433/972816.pdf
    • http://files.altadenalive.com/uploads/1/3/1/1/131163976/52b92813bfd2fd5.pdf
    • http://files.studiobdancecenter.org/uploads/1/3/1/8/131871970/20fc3209aaea7c.pdf
    • http://files.ridgeap.com/uploads/1/3/0/7/130776082/lubudopuwi.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://cdn.shopify.com/s/files/1/0434/2677/5196/files/50361205475.pdf
    • https://cdn.shopify.com/s/files/1/0434/4011/1782/files/19579053346.pdf
    • https://cdn.shopify.com/s/files/1/0429/8201/5135/files/69234914016.pdf
    • https://cdn.shopify.com/s/files/1/0436/9671/7992/files/rizedabixasovomekimuju.pdf
    • https://cdn.shopify.com/s/files/1/0432/4530/6011/files/logirotofor.pdf
    • https://cdn.shopify.com/s/files/1/0430/1671/6437/files/7743556301.pdf
    • https://cdn.shopify.com/s/files/1/0432/6057/5894/files/podikikonilogavaj.pdf
    • https://cdn.shopify.com/s/files/1/0431/0247/0306/files/vinawosowebexumejuxovap.pdf
    • https://cdn.shopify.com/s/files/1/0429/6795/7658/files/91568502089.pdf
    • https://cdn.shopify.com/s/files/1/0436/9760/2713/files/49966605573.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/zekimopesafirizaxos.pdf
    • https://cdn.shopify.com/s/files/1/0431/6217/3604/files/60281947357.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006391.bin
5e701c9def921d906d220450a18da8cd888be152fd067b5f78f2f1533f99f04c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6391 4932 bytes
font_01_sfnt_off0000740e.bin
84845b4f122717b6d910cc0b82daeae60e6e25f6d91e10b7e9491c11e52f96fe		 pdf-font-stream PDF embedded font (sfnt) at offset 0x740E 10100 bytes
font_02_sfnt_off00009698.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9698 4324 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.