Malicious PDF — malware analysis report

Static analysis result for SHA-256 59676676dde15ae0…

MALICIOUS

PDF

39.2 KB Created: 2020-08-18 18:00:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 62966b1339eb26a3f0e005cf9bd1cd0d SHA-1: 73c77ee9aa2c4762492f968ad4fc86d94fa07726 SHA-256: 59676676dde15ae0d088ba18d16dcdb2e64f31304ea5529c39c1ff58db4209d7
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a significant number of embedded links, with a critical heuristic firing indicating a malicious redirector link. The document body, though heavily corrupted, contains text related to 'chicken invaders 6 pc game' and the authoring application, suggesting a lure. The primary malicious IOC is the redirector URL, which likely leads to further malicious content or phishing pages.

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=chicken+invaders+6+pc+game
    • http://duzabuv.karamcneese.org/uploads/1/3/1/3/131398003/7235497.pdf
    • http://files.johnvoso.com/uploads/1/3/1/8/131860060/e1561a7b8d.pdf
    • http://files.cramerpottery.com/uploads/1/3/1/3/131398374/tapelodowanop-vodeziter-fawibarazowisuz.pdf
    • https://cdn.shopify.com/s/files/1/0432/7417/4632/files/pekoxomilik.pdf
    • https://cdn.shopify.com/s/files/1/0434/3804/7388/files/xuzusosomamewokezirepuna.pdf
    • https://cdn.shopify.com/s/files/1/0447/7422/8117/files/panemujutefububivene.pdf
    • https://cdn.shopify.com/s/files/1/0440/3757/0710/files/mavasisoloxud.pdf
    • https://cdn.shopify.com/s/files/1/0427/8734/0454/files/57815032271.pdf
    • https://cdn.shopify.com/s/files/1/0430/4224/2709/files/sirobidasafufiwoxulitu.pdf
    • https://cdn.shopify.com/s/files/1/0435/7203/5739/files/oc_register_crosswords.pdf
    • https://cdn.shopify.com/s/files/1/0435/7170/8065/files/31937904418.pdf
    • https://cdn.shopify.com/s/files/1/0433/3263/2730/files/xulotufizanukuno.pdf
    • https://cdn.shopify.com/s/files/1/0429/4079/2999/files/obsidian_armor_terraria.pdf
    • https://cdn.shopify.com/s/files/1/0439/1036/5339/files/90904487181.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_off00005a47.bin
cbce78e83199c530a15c101d2e6fb551ec18dd361ea6193f71f762dd14199f6c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5A47 5636 bytes
font_01_sfnt_off00006d46.bin
8273ab3f50c7f35f6ebfea8bd6333dca29836741d36913e8005bd622690f47da		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6D46 10192 bytes

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