Malicious PDF — malware analysis report

Static analysis result for SHA-256 90e7a051bc1ae966…

MALICIOUS

PDF

49.1 KB Created: 2020-08-25 05:16:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6faf1367c080bbe241320ec9a9fb4ca3 SHA-1: e4380514e9a1f0762168eaf260dfd8ea0b96903d SHA-256: 90e7a051bc1ae966a8662e8d0837f3e6e78ae43d77be43bb766cc710f17d0c79
120 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with one critical heuristic identifying a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains text related to 'React bootstrap admin template free' and a URL that appears to be a lure. The presence of a link farm further suggests a malicious intent to redirect users to potentially harmful sites.

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.com/pify?keyword=react+bootstrap+admin+template+free
    • http://dijulip.drakehill.org/uploads/1/3/0/7/130776031/pufasoxexaxageb.pdf
    • http://files.thecelestecollection.com/uploads/1/3/2/6/132695749/361010.pdf
    • http://files.thecookingkettle.com/uploads/1/3/1/4/131454035/kugijijuwi-donolusipipa-pogug.pdf
    • http://files.photoannaclaire.com/uploads/1/3/0/7/130775205/25db29d335329.pdf
    • https://cdn.shopify.com/s/files/1/0432/8354/6267/files/sefasewo.pdf
    • https://cdn.shopify.com/s/files/1/0439/5663/3758/files/zofenipijapibijigekume.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/16175378270.pdf
    • https://cdn.shopify.com/s/files/1/0431/8553/7175/files/54588057490.pdf
    • https://cdn.shopify.com/s/files/1/0430/5698/8317/files/bump_bot_discord.pdf
    • https://cdn.shopify.com/s/files/1/0432/5107/3174/files/82103146560.pdf
    • https://cdn.shopify.com/s/files/1/0429/5042/6780/files/77846998489.pdf
    • https://cdn.shopify.com/s/files/1/0434/2425/2071/files/vulifemozirexedimozap.pdf
    • https://cdn.shopify.com/s/files/1/0434/7291/2549/files/15901896845.pdf
    • https://cdn.shopify.com/s/files/1/0435/3835/0231/files/91947587100.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_off0000820e.bin
3093bd14bd9b52faf85d61bbaef6759bff01d2efd60429f530646ade2d137c4f
pdf-font-stream PDF embedded font (sfnt) at offset 0x820E 5448 bytes
font_01_sfnt_off00009473.bin
923a4373c9100c4c482971bca4d827aaccfea170a9abcade86f08ce6827af749
pdf-font-stream PDF embedded font (sfnt) at offset 0x9473 10180 bytes