Malicious PDF — malware analysis report

Static analysis result for SHA-256 2c6c848f3eb0dabf…

MALICIOUS

PDF

45.4 KB Created: 2020-08-11 09:22:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 38fba1212c106367a22f2e34d9b3b137 SHA-1: 36d98619dc486f0f861d9c989167a0d10aca997b SHA-256: 2c6c848f3eb0dabfbd437b841c3c5e6909a2e73ee7eb47ad509279813ecc0296
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

This PDF file was flagged by a machine learning model as malicious and contains numerous embedded links. One of these links, 'https://ttraff.ru/pify?keyword=amperemeter+adalah+pdf', points to known malicious redirector infrastructure. The document body appears to be malformed but contains a reference to the same malicious URL, suggesting the primary intent is to redirect users to harmful content. The presence of a large number of external PDF links, many hosted on Shopify, indicates a potential link farm or SEO poisoning attempt to distribute malicious content.

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.ru/pify?keyword=amperemeter+adalah+pdf
    • http://files.oace.co/uploads/1/3/1/3/131381781/parotakime.pdf
    • http://files.richardellishair.co.uk/uploads/1/3/1/4/131411474/musegi_lidudigo_xesoz_dilabupeb.pdf
    • http://files.hannasophian.com/uploads/1/3/1/4/131454098/womozuzuparo.pdf
    • http://files.jacobhughesphotography.com/uploads/1/3/2/6/132696018/kedoxak_ruzafaluzazu_jerud.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xoxolesusoziviro.pdf
    • https://cdn.shopify.com/s/files/1/0431/7842/6534/files/arris_tg2482a_port_forwarding.pdf
    • https://cdn.shopify.com/s/files/1/0435/1878/7736/files/bucket_list_template.pdf
    • https://cdn.shopify.com/s/files/1/0439/0384/4520/files/3598184253.pdf
    • https://cdn.shopify.com/s/files/1/0431/3487/7847/files/ccna_exam_certification_guide.pdf
    • https://cdn.shopify.com/s/files/1/0431/2737/3986/files/zorotoj.pdf
    • https://cdn.shopify.com/s/files/1/0429/0668/1497/files/69359026744.pdf
    • https://cdn.shopify.com/s/files/1/0433/2421/1354/files/lisuluvad.pdf
    • https://cdn.shopify.com/s/files/1/0440/5837/8392/files/1958460430.pdf
    • https://cdn.shopify.com/s/files/1/0428/4085/0598/files/waminuxefipovisuxobovuge.pdf
    • https://cdn.shopify.com/s/files/1/0434/1379/9066/files/mean_deviation_for_grouped_data.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rejukimuvili.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_off000073cc.bin
586ff43975e5fa46346a2d0e31a2f88c25d8e58a1e83fc873e163dfa19a43621		 pdf-font-stream PDF embedded font (sfnt) at offset 0x73CC 5092 bytes
font_01_sfnt_off000084f6.bin
47763ee2fb6e49955bc9ad9cad8dc07164bfd1f01ac1f64df444cc09d2a79b9d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x84F6 10420 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.