Malicious PDF — malware analysis report

Static analysis result for SHA-256 209f7324db1ac198…

MALICIOUS

PDF

41.4 KB Created: 2020-08-13 04:42:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8b0bdb19108d1feff102d819402c1a2f SHA-1: 976ce11d24b396a02e2e6a74e229c5557f64645f SHA-256: 209f7324db1ac198c8929cd68552754035d4e098a39f0950a345f10ecc705715
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, specifically pointing to a URL disguised as a "tally erp9 shortcuts pdf". This URL leads to a redirector that is part of a link farm, indicating a likely SEO poisoning or phishing campaign. The document body itself contains obfuscated text and embedded URLs, reinforcing the malicious intent. The primary IOC is the redirector URL, which is designed to lead users to malicious content.

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/wb?keyword=tally%20erp9%20shortcuts%20pdf
    • http://towakobo.bdavidduncanartist.com/uploads/1/3/0/7/130776394/jenakekitofotomufed.pdf
    • http://zifibifo.chrisbazatadesign.com/uploads/1/3/0/7/130738970/pipoba_lizesogadesemaz.pdf
    • http://xanobomo.authenticatex.com/uploads/1/3/0/7/130776089/4132129.pdf
    • https://cdn.shopify.com/s/files/1/0436/2600/4642/files/jinalatelezitas.pdf
    • https://cdn.shopify.com/s/files/1/0432/0673/8079/files/mr_saxo_beat_mp3.pdf
    • https://cdn.shopify.com/s/files/1/0429/7234/8579/files/manual_lombriz_roja_californiana.pdf
    • https://cdn.shopify.com/s/files/1/0435/7708/2019/files/essential_hematology_7th_edition_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0437/8525/7112/files/zekesimikotugu.pdf
    • https://cdn.shopify.com/s/files/1/0430/1740/4573/files/zedudiziduxadagaboxi.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/21533622499.pdf
    • https://cdn.shopify.com/s/files/1/0449/5346/9083/files/ajcc_prostate_cancer_staging.pdf
    • https://cdn.shopify.com/s/files/1/0434/0000/3749/files/kajizokaburitufekavis.pdf
    • https://cdn.shopify.com/s/files/1/0429/2853/7753/files/68063151510.pdf
    • https://cdn.shopify.com/s/files/1/0430/5246/6325/files/1318390229.pdf
    • https://cdn.shopify.com/s/files/1/0434/5144/9504/files/18390118561.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_off00006400.bin
6fe3e3ca92e8f591064443978a56b4b44f09ded8fe1993e0af02132c24a5e364		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6400 5448 bytes
font_01_sfnt_off0000768b.bin
c5cf287eddb65a0d0e91b970356235b4f84c4bf498f9540011e6429dc38ff975		 pdf-font-stream PDF embedded font (sfnt) at offset 0x768B 10084 bytes

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