Malicious PDF — malware analysis report

Static analysis result for SHA-256 03a4a6eb20ec63b9…

MALICIOUS

PDF

39.2 KB Created: 2020-08-25 05:03:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4acae1cdb8b88adf6d381e38532c782d SHA-1: b1702682ed4169832cf484041f1eb0e02ec637c1 SHA-256: 03a4a6eb20ec63b90c55e4d8fa73a9d7c5b1e6fc4d0b00fc659f77acf4bd8eb2
162 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for linking to known malicious redirector infrastructure, specifically a URL related to 'Plague Inc mod apk'. This URL, 'https://ttraff.cc/pify?keyword=plague+inc+mod+apk+android+oyun+club', is designed to deceive users into downloading potentially malicious content. The presence of numerous other PDF links, many pointing to benign Shopify domains but some to unknown domains, suggests a link farm or SEO poisoning tactic to distribute the malicious lure. No scripts were extracted, but the document body and heuristics strongly indicate a phishing or malware distribution attempt.

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.
  • 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
  • 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=plague+inc+mod+apk+android+oyun+club
    • http://joxuxi.campsidneydew.org/uploads/1/3/0/9/130969686/9666bb68c.pdf
    • http://kageseso.kelseycarroll.net/uploads/1/3/2/7/132712358/ganow.pdf
    • http://files.catholicchurchoftheassumption.co.uk/uploads/1/3/0/9/130969553/59c6a.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/6219719719.pdf
    • https://cdn.shopify.com/s/files/1/0459/5456/4255/files/xowosevusanobitakezerem.pdf
    • https://cdn.shopify.com/s/files/1/0437/5507/7781/files/programa_arquitectonico_centro_cultural.pdf
    • https://cdn.shopify.com/s/files/1/0428/0628/0355/files/ios_for_macbook_pro_2010.pdf
    • https://cdn.shopify.com/s/files/1/0440/9825/7048/files/roxusepopapugikotoji.pdf
    • https://cdn.shopify.com/s/files/1/0433/0822/0574/files/987910438.pdf
    • https://cdn.shopify.com/s/files/1/0431/6427/0743/files/tugubiwis.pdf
    • https://cdn.shopify.com/s/files/1/0430/7664/9124/files/craftsman_lt1000_parts.pdf
    • https://cdn.shopify.com/s/files/1/0432/1991/0811/files/66640408237.pdf
    • https://cdn.shopify.com/s/files/1/0440/7921/8840/files/engineering_drawing_agarwal_download.pdf
    • https://cdn.shopify.com/s/files/1/0428/8790/5446/files/tubefuw.pdf
    • https://cdn.shopify.com/s/files/1/0435/7426/3963/files/19339037681.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_off00005bbe.bin
1338147b6ae2be5bd4e142dd6266cbdd68f848be3052a51aec4c4810b9de39fd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5BBE 5520 bytes
font_01_sfnt_off00006e68.bin
8540d17f4f95c00addcd5ecb6aef01ab74b5e5ced3c71c8be296560a555c4d52		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6E68 9808 bytes

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