Malicious PDF — malware analysis report

Static analysis result for SHA-256 7226b99a9ac593ab…

MALICIOUS

PDF

41.9 KB Created: 2020-08-23 08:09:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ca12362f5da3d353c2b491193a2e7003 SHA-1: ee0795066b1976857bc515206c8d081abdf60443 SHA-256: 7226b99a9ac593abdf4cfaecef3982507cdd5b1c1c78d22baa6a0e2030acd8c2
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF contains a link farm and a specific malicious redirector URL, indicating an attempt to lure users to malicious content. The heuristic 'SE_ADVANCE_FEE_SCAM_LURE' suggests a scam, and the embedded URL 'https://ttraff.ru/pify?keyword=the+banner+saga+apk+full' is a primary indicator of malicious redirection. The ML classifier strongly supports the malicious verdict.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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=the+banner+saga+apk+full
    • http://files.animal-sos.org/uploads/1/3/2/3/132303407/5533794.pdf
    • http://files.theregoesjess.com/uploads/1/3/0/8/130813841/60a4e.pdf
    • http://files.treeoflifenaturaltherapies.com/uploads/1/3/1/4/131407096/lojovedigutet.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0430/1648/7065/files/63493804983.pdf
    • https://cdn.shopify.com/s/files/1/0464/6574/5054/files/guild_wars_2_bifrost_legendary_guide.pdf
    • https://cdn.shopify.com/s/files/1/0454/4213/8262/files/skywatch_tv_guide_nz.pdf
    • https://cdn.shopify.com/s/files/1/0433/5442/3464/files/48092442132.pdf
    • https://cdn.shopify.com/s/files/1/0434/6655/5556/files/bangkok_attractions_map.pdf
    • https://cdn.shopify.com/s/files/1/0434/6878/3766/files/xokawadokoruw.pdf
    • https://cdn.shopify.com/s/files/1/0428/0988/4838/files/xililiwasiw.pdf
    • https://cdn.shopify.com/s/files/1/0431/3609/0267/files/16665289693.pdf
    • https://cdn.shopify.com/s/files/1/0429/8863/4266/files/detizawurimawipapemot.pdf
    • https://cdn.shopify.com/s/files/1/0429/9508/9559/files/gamestop_gta_5_xbox_360.pdf
    • https://cdn.shopify.com/s/files/1/0429/9046/9283/files/a._p._cinemas_regulation_rules_1970.pdf
    • https://cdn.shopify.com/s/files/1/0428/6421/4175/files/6110752004.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_off00006455.bin
30b28a94d37bdf2ae43a348557392df7b3549ec7a6ada55e2df3bc44606ad94d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6455 5316 bytes
font_01_sfnt_off0000765c.bin
0430d5bb9da6646bc1dc56f4acc67e35d7c66e0d5ac0cbddbc6e6dcf5e882b8f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x765C 10536 bytes

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