Malicious PDF — malware analysis report

Static analysis result for SHA-256 6049b158da58ab76…

MALICIOUS

PDF

43.9 KB Created: 2020-08-13 23:41:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: fe23b8cd569c1b768c130c68fbd41a0d SHA-1: f6157a2276f3be2537223337ed053aa502badc83 SHA-256: 6049b158da58ab76d6dfefda023ea9c156acd60cd238e07d14290925982443fd
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a link that redirects to malicious infrastructure, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document also features a large number of external PDF links, suggesting a link farm for SEO manipulation or to obscure malicious activity. The embedded URL `https://ttraff.cc/pify?keyword=acronis+2016+bootable+usb` is a primary indicator of malicious intent, likely serving as a lure for further compromise.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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=acronis+2016+bootable+usb
    • http://files.celestialinternationalholdings.com/uploads/1/3/1/3/131379217/xulalipowubaxib-remizopikepig-sazatib-xijuvov.pdf
    • http://files.amargeauxrai.com/uploads/1/3/2/3/132302833/jitebijezuroge_xetufujefaw.pdf
    • http://kowefi.abivaonlineresources.com/uploads/1/3/1/3/131381497/9891872.pdf
    • http://files.blackskullcompany.com/uploads/1/3/0/7/130738876/vutafifur.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0431/6404/1365/files/invisibility_potion_eso.pdf
    • https://cdn.shopify.com/s/files/1/0446/3286/6979/files/waltz_for_debby_cannonball_adderley.pdf
    • https://cdn.shopify.com/s/files/1/0438/3938/9856/files/assertion_and_reasoning_questions_biology.pdf
    • https://cdn.shopify.com/s/files/1/0430/8231/7975/files/93177495796.pdf
    • https://cdn.shopify.com/s/files/1/0431/1531/5349/files/zirewepinevano.pdf
    • https://cdn.shopify.com/s/files/1/0445/6418/5247/files/origen_de_los_alimentos_transgenicos.pdf
    • https://cdn.shopify.com/s/files/1/0433/7424/8097/files/ribipixafofagaroge.pdf
    • https://cdn.shopify.com/s/files/1/0431/1128/4893/files/bigesunob.pdf
    • https://cdn.shopify.com/s/files/1/0431/9212/3560/files/pdf_watermark_remover_crack.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/51994241049.pdf
    • https://cdn.shopify.com/s/files/1/0431/9097/6673/files/dikipojipup.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/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006d3a.bin
5e5adde03fa03296993fb2cebe37ed85182b2c39addaf86620973b3fabeb35bd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6D3A 5404 bytes
font_01_sfnt_off00007f97.bin
b59af94fc093d6dd40c97c4503c86170f7cacf8ee515433f3c3091bc9bae4ee5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7F97 10360 bytes

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