Malicious PDF — malware analysis report

Static analysis result for SHA-256 daaa30a641df35d2…

MALICIOUS

PDF

42.1 KB Created: 2020-08-23 01:58:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9206f000a9fa55aed671b654eb251e25 SHA-1: 6ba0c46cdcf3eafe948b9098de5e639de8b2eb09 SHA-256: daaa30a641df35d21f4888f68c9f60a7d62058612b834251408831812f7ba2d0
120 Risk Score

Malware Insights

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

The PDF document contains a link to a redirector, which in turn leads to a purported game download. This is a common lure for users to download and execute malicious files. The PDF also hosts a large number of links to other PDFs, suggesting a link farm for SEO manipulation or to distribute further malicious content. No scripts were extracted, but the presence of a malicious redirector and a link farm strongly indicates a phishing or malware distribution attempt.

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=street+fighter+iv+apk+offline
    • http://files.bournemouthsk.co.uk/uploads/1/3/1/0/131070713/wowap.pdf
    • http://vabodezuz.manonvankempen.com/uploads/1/3/1/4/131437792/dimolovosiw-wifozow.pdf
    • http://files.killingfieldsmuseum.com/uploads/1/3/0/8/130873851/ferodipororufew-movonigan.pdf
    • http://deteninip.drylandag.org/uploads/1/3/2/6/132696067/fdba5b643ff.pdf
    • http://mozutoz.mgtconcepts.com/uploads/1/3/0/7/130738720/rujunad_xinozojijuve.pdf
    • https://cdn.shopify.com/s/files/1/0431/3835/1255/files/vigilitagosijuw.pdf
    • https://cdn.shopify.com/s/files/1/0435/5942/0063/files/virtual_dj_8_pro.pdf
    • https://cdn.shopify.com/s/files/1/0441/4029/8392/files/63236404362.pdf
    • https://cdn.shopify.com/s/files/1/0434/2808/5912/files/78998922038.pdf
    • https://cdn.shopify.com/s/files/1/0435/8583/1070/files/66789653924.pdf
    • https://cdn.shopify.com/s/files/1/0427/6387/8566/files/jemilavajabepeba.pdf
    • https://cdn.shopify.com/s/files/1/0427/6181/4172/files/vaxisuga.pdf
    • https://cdn.shopify.com/s/files/1/0433/9888/9635/files/agenda_2020_desarrollo_sostenible.pdf
    • https://cdn.shopify.com/s/files/1/0437/2388/2664/files/padipug.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/50971407729.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_off00006694.bin
7ddd4b3f8751b14ec98a78c81a1d8e83233c42fb1331ee3010b028071c30dd78		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6694 5212 bytes
font_01_sfnt_off00007851.bin
5194f41e2f80c0c8ef66f5a795abb557f14e9e6af1207cebb7f7de466d6ed2c3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7851 10296 bytes

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