Malicious PDF — malware analysis report

Static analysis result for SHA-256 35432a3824c44430…

MALICIOUS

PDF

46.5 KB Created: 2020-07-23 06:14:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 84f6c69bde35a5a5a20665602737f214 SHA-1: 396f7623d4dea71adecf30908d2b659e35bd46f2 SHA-256: 35432a3824c44430b61525b50523955a34dd81273a2b3fe1a2a8bcd0aea2cb04
128 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link disguised as a download button, aiming to trick users into visiting a harmful website. The document body, though heavily obfuscated, appears to be related to 'basic computer notes in hindi pdf free download', likely a lure. The presence of a link farm further suggests an attempt to distribute malicious content.

Heuristics 4

  • 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
  • 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.com/pify?keyword=basic+computer+notes+in+hindi+pdf+free+download
    • http://files.maydaystudio.com/uploads/1/3/1/6/131637546/162127.pdf
    • http://files.eldercaringcoordinationfl.org/uploads/1/3/0/7/130740513/jivilaki.pdf
    • http://files.poodlepets.com/uploads/1/3/0/7/130775876/buxipitijarimujejet.pdf
    • http://files.eldercaringcoordinationfl.o
    • https://cdn.shopify.com/s/files/1/0433/1136/6309/files/60250685792.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/61411835552.pdf
    • https://cdn.shopify.com/s/files/1/0433/1218/5494/files/29563621896.pdf
    • https://tozipefisewe.files.wordpress.com/2020/06/wavifarovunuzoj.pdf
    • https://jogadol.files.wordpress.com/2020/06/76125436440.pdf
    • https://zifumopof.files.wordpress.com/2020/07/49860988136.pdf
    • https://safetakoge892509429.files.wordpress.com/2020/07/nazasozosaniwidejetes.pdf
    • https://polobepokug.files.wordpress.com/2020/06/22177933253.pdf
    • https://cdn.shopify.com/s/files/1/0438/3608/0288/files/lurafufan.pdf
    • https://cdn.shopify.com/s/files/1/0430/5109/0077/files/78049452236.pdf
    • https://cdn.shopify.com/s/files/1/0434/5197/3789/files/65677386476.pdf
    • https://cdn.shopify.com/s/files/1/0432/2010/7424/files/domenamuvotepopefepa.pdf
    • https://cdn.shopify.com/s/files/1/0429/0864/7580/files/zogesegirexibonazewipama.pdf
    • https://cdn.shopify.com/s/files/1/0429/9735/0554/files/70793513770.pdf
    • https://cdn.shopify.com/s/files/1/0430/2772/6489/files/xafokemodexibup.pdf
    • https://cdn.shopify.com/s/files/1/0430/0472/3349/files/80030123770.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/dokole.pdf
    • https://cdn.shopify.com/s/files/1/0433/3705/6414/files/kiniwujevage.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_off000076b8.bin
2eb16cf06acc76fa53f07f9f44da82edb7478fbd77906f2cabeb3664aac91a4d
pdf-font-stream PDF embedded font (sfnt) at offset 0x76B8 5420 bytes
font_01_sfnt_off000088f7.bin
01758bd2e3a67f933cb75b2894b938cd7b9c9343b3465d413179d2bd287e93c8
pdf-font-stream PDF embedded font (sfnt) at offset 0x88F7 10180 bytes