Malicious PDF — malware analysis report

Static analysis result for SHA-256 a5f7f2cf95fbf65a…

MALICIOUS

PDF

40.7 KB Created: 2020-08-21 02:18:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d2cc27d3060a19d614be871eb76c818e SHA-1: ea7262eb6fc8ab9f7260c07b4ddb07a332a23997 SHA-256: a5f7f2cf95fbf65a68d4e85d45f47e4ec2bcd5cb46c46cf6b24f0c364f5ce685
152 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, which is also present in the document body. This link, 'https://ttraff.cc/pify?keyword=vidmate+apk+free++for+ios', is designed to lure users to malicious infrastructure. The PDF also contains a large number of external links, many hosted on cdn.shopify.com, suggesting a link farm or SEO poisoning tactic. The ML classifier strongly indicates maliciousness.

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=vidmate+apk+free++for+ios
    • http://files.haidagwaiimagazine.com/uploads/1/3/2/6/132680853/2099364.pdf
    • http://files.beachcitiesrockclub.com/uploads/1/3/0/7/130775490/8695016.pdf
    • http://pasitano.helenheinmiller.com/uploads/1/3/2/6/132695471/8369833.pdf
    • https://cdn.shopify.com/s/files/1/0430/0052/9049/files/mexeridibuf.pdf
    • https://cdn.shopify.com/s/files/1/0428/4992/7327/files/profecia_celestina_gratis.pdf
    • https://cdn.shopify.com/s/files/1/0432/5251/4979/files/aktu_odd_semester_date_sheet_2018-_19.pdf
    • https://cdn.shopify.com/s/files/1/0432/3508/2402/files/75662879303.pdf
    • https://cdn.shopify.com/s/files/1/0428/9629/4051/files/canon_lide_110_scanning_software.pdf
    • https://cdn.shopify.com/s/files/1/0433/8037/5704/files/solid_waste_management_project_report.pdf
    • https://cdn.shopify.com/s/files/1/0430/3749/1354/files/92831620644.pdf
    • https://cdn.shopify.com/s/files/1/0430/1701/1353/files/ratalulalenu.pdf
    • https://cdn.shopify.com/s/files/1/0437/6395/7918/files/13220839477.pdf
    • https://cdn.shopify.com/s/files/1/0437/0789/1877/files/kepomelaluxomagegotosesug.pdf
    • https://cdn.shopify.com/s/files/1/0431/3497/6157/files/chocolatier_2_game_free.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/dejotoxirebogoro.pdf
    • https://cdn.shopify.com/s/files/1/0430/0092/2261/files/tajevokovu.pdf
    • https://cdn.shopify.com/s/files/1/0429/8119/5927/files/78898190705.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_off0000627a.bin
f61b282f0c664658d9d9384cc3d8dbccaf4bfe7928886f50f9521b9736fcb66f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x627A 5184 bytes
font_01_sfnt_off0000740c.bin
5875c3519c6d18711ad20fb4816bec02f3e2854f1ef737ba52a5e90f3024b14e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x740C 9884 bytes

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