Malicious PDF — malware analysis report

Static analysis result for SHA-256 a2dad82bb7473b47…

MALICIOUS

PDF

44.1 KB Created: 2020-08-14 04:58:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 575633399a1ef04fcc09f2125e6e3975 SHA-1: 04b09639458f9a16d9c110c63625442bd91facff SHA-256: a2dad82bb7473b47c9b945fe255fb26ed4ee66866682be3bba09b0de9e5d1d76
120 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded links, identified as a PDF link farm. One of these links, 'https://ttraff.com/pify?keyword=owl.+carousel.+min.+js+free', points to a known malicious redirector. The document body, though heavily obfuscated, also contains this URL, suggesting it is the primary lure. The presence of numerous other PDF links, many hosted on Shopify, indicates an attempt to obscure the malicious destination and potentially leverage benign-looking domains for distribution.

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=owl.+carousel.+min.+js+free
    • http://povup.lorisproject.com/uploads/1/3/1/4/131437601/41927.pdf
    • http://files.agorapublications.net/uploads/1/3/2/6/132682570/4da5af8.pdf
    • http://files.thestockmansbreakfast.com/uploads/1/3/0/7/130740033/60895d03037f1e2.pdf
    • https://cdn.shopify.com/s/files/1/0450/3742/0708/files/inspirational_business_success_stories.pdf
    • https://cdn.shopify.com/s/files/1/0447/5971/1898/files/seaborn_bar_plot.pdf
    • https://cdn.shopify.com/s/files/1/0433/5216/2462/files/zasoz.pdf
    • https://cdn.shopify.com/s/files/1/0427/5293/4044/files/baboxovizozazaravemin.pdf
    • https://cdn.shopify.com/s/files/1/0432/6726/0576/files/bihar_ssc_notification_2020.pdf
    • https://cdn.shopify.com/s/files/1/0433/4059/5352/files/vipajobuwonizowalofedude.pdf
    • https://cdn.shopify.com/s/files/1/0433/7234/7550/files/39897199313.pdf
    • https://cdn.shopify.com/s/files/1/0431/7249/5524/files/buzonatiwemap.pdf
    • https://cdn.shopify.com/s/files/1/0433/5016/3609/files/atls_10th_edition_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0432/6031/3768/files/12825434111.pdf
    • https://cdn.shopify.com/s/files/1/0434/1992/6679/files/andhra_bank_atm_card_application_form.pdf
    • https://cdn.shopify.com/s/files/1/0431/6885/8272/files/4562129403.pdf
    • https://cdn.shopify.com/s/files/1/0430/8579/1393/files/zekuwujofijosavonivo.pdf
    • https://cdn.shopify.com/s/files/1/0431/0443/6390/files/11967925895.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_off000066cd.bin
8655e1ef426c5860c4482f14c47707aed21271c4674e113b33f3715660a789a3
pdf-font-stream PDF embedded font (sfnt) at offset 0x66CD 5256 bytes
font_01_sfnt_off000078a4.bin
f1de42af4d478472ceaadb43145dd0cdbde3446bb1c0c2f01fced3e436265613
pdf-font-stream PDF embedded font (sfnt) at offset 0x78A4 13560 bytes