Malicious PDF — malware analysis report

Static analysis result for SHA-256 e0df72c02bbbd025…

MALICIOUS

PDF

46.8 KB Created: 2020-08-08 17:41:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4b7931d21494c1b70a050884688b9510 SHA-1: 00648fcf09b7637b68c2dbd05b2f7062dcddbe88 SHA-256: e0df72c02bbbd025a507a6c30cfa2685065adc97a01b9c77eea60ab5610bff91
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link T1059.001 Command and Scripting Interpreter: PowerShell

The PDF contains a link that redirects to malicious infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains the same URL, suggesting a lure to download further content. The PDF_SEO_LINK_FARM heuristic indicates a large number of external links, likely for SEO manipulation or to distribute the malicious payload across multiple domains.

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=latest+amended+companies+act+2020+pdf
    • http://files.straightfromtheheartinc.org/uploads/1/3/1/8/131871994/b12a19ee.pdf
    • http://rulifivo.bleedheartfloral.com/uploads/1/3/1/3/131380158/7224743.pdf
    • http://files.sarablairphotography.com/uploads/1/3/1/4/131406036/lazumilepejel.pdf
    • https://cdn.shopify.com/s/files/1/0434/3349/2641/files/71864436883.pdf
    • https://cdn.shopify.com/s/files/1/0427/4195/6775/files/maths_tricks_for_aptitude_test.pdf
    • https://cdn.shopify.com/s/files/1/0433/3358/2998/files/86641545710.pdf
    • https://cdn.shopify.com/s/files/1/0440/6955/2293/files/590321950.pdf
    • https://cdn.shopify.com/s/files/1/0431/7646/0447/files/9358478490.pdf
    • https://cdn.shopify.com/s/files/1/0437/4619/7653/files/fasopali.pdf
    • https://cdn.shopify.com/s/files/1/0430/2045/1997/files/30517424149.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/suramagufumaxuragozud.pdf
    • https://cdn.shopify.com/s/files/1/0434/5787/2033/files/zoology_books_for_bsc_part_2_download.pdf
    • https://cdn.shopify.com/s/files/1/0434/8562/6520/files/kijivodubaxidusudabupe.pdf
    • https://cdn.shopify.com/s/files/1/0428/1411/1903/files/loxonotekimozupe.pdf
    • https://cdn.shopify.com/s/files/1/0439/4795/0248/files/20079449882.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_off000079a5.bin
92badfd41d992361cd3386fbd0e3ed0add54b9c7f6195038d808965bc195bf79		 pdf-font-stream PDF embedded font (sfnt) at offset 0x79A5 5388 bytes
font_01_sfnt_off00008bf2.bin
32fd809a5f7f6b4e0ff2d29937c6afc5a4a9103393fb576e99b828a345a60fa7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8BF2 10072 bytes

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