Malicious PDF — malware analysis report

Static analysis result for SHA-256 e05f40def4ef48c4…

MALICIOUS

PDF

43.0 KB Created: 2020-08-06 03:05:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 40db96e01f48151b219376a10a701f7b SHA-1: a2b2aec5b0e51fcda5e81630d03986818f33b112 SHA-256: e05f40def4ef48c40f1d97ea2f6d124e88952c63e754eab793b6dcc73a4aa207
120 Risk Score

Malware Insights

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

The PDF contains a link farm designed to appear as legitimate content related to airborne diseases, but the primary link redirects to a known malicious redirector. The PDF structure and embedded links suggest a social engineering tactic to drive traffic to potentially malicious sites. No scripts were extracted, limiting the analysis of further payload delivery or execution.

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.cc/pify?keyword=airborne+diseases+pdf
    • http://files.berberraftingadventures.com/uploads/1/3/1/6/131637649/4e93f08331ece8.pdf
    • http://files.ashlingplacelabradors.com/uploads/1/3/1/1/131163684/525a978880de0a.pdf
    • http://files.bethtenhoveart.com/uploads/1/3/1/4/131483344/nuwovopojepug-wetilekoxowugu-punejexurizafef.pdf
    • https://cdn.shopify.com/s/files/1/0427/8219/5879/files/43910401109.pdf
    • https://cdn.shopify.com/s/files/1/0436/0775/2861/files/50198145941.pdf
    • https://cdn.shopify.com/s/files/1/0429/5032/8486/files/novezixapitekewi.pdf
    • https://cdn.shopify.com/s/files/1/0433/8899/3703/files/windows_10_xbox_controller_driver.pdf
    • https://cdn.shopify.com/s/files/1/0432/4638/7362/files/gadikuwowabugijujulovof.pdf
    • https://cdn.shopify.com/s/files/1/0431/0102/8503/files/sozev.pdf
    • https://cdn.shopify.com/s/files/1/0435/3851/4071/files/eminem_lyrics_lose_yourself.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/dusegu.pdf
    • https://cdn.shopify.com/s/files/1/0434/7602/5497/files/28265211135.pdf
    • https://cdn.shopify.com/s/files/1/0430/2172/9955/files/letajefaxutojupiv.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_off00006bc5.bin
f6b6c2c0d459bd71cace20d8be95674af15ca52c6af2125fbe5fe44c9806f56b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6BC5 5132 bytes
font_01_sfnt_off00007d46.bin
f7375c3df7583d69d9efa79f0dfe06ff517be0874da933a91c7ea1246fb3fdba		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7D46 10120 bytes

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