Malicious PDF — malware analysis report

Static analysis result for SHA-256 d87eb7fbcdef76fd…

MALICIOUS

PDF

39.0 KB Created: 2020-08-19 06:00:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d6d9a3174eebe9c4d67b526812fcbf45 SHA-1: 87e31963174e5d80c33b9730b93e10fb73e44a46 SHA-256: d87eb7fbcdef76fd2d4c4e2bf6dcc7ac238f5b85861532ea78e811e9ef271611
152 Risk Score

Malware Insights

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

The PDF contains embedded links, one of which, 'https://ttraff.ru/pify?keyword=adobe+illustrator+cc+free+trial', is flagged as a malicious redirector. The document body also contains text related to 'Adobe illustrator cc free trial', suggesting a lure to trick users into clicking the malicious link. The presence of numerous external PDF links, many hosted on shopify.com, indicates a link farm strategy, likely to improve SEO for 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=adobe+illustrator+cc+free+trial
    • http://files.missourifertility.com/uploads/1/3/0/7/130740524/wivuw-kudewaxitikode-xalifidunagina-wedebub.pdf
    • http://files.djheylove.com/uploads/1/3/1/3/131383380/vazudebobanutik-guwadekoz.pdf
    • https://cdn.shopify.com/s/files/1/0440/4844/9701/files/xegoxoxikarasonuj.pdf
    • https://cdn.shopify.com/s/files/1/0437/6671/0426/files/tixolufujuzopejazateru.pdf
    • https://cdn.shopify.com/s/files/1/0431/2078/7613/files/timamokimadakazaki.pdf
    • https://cdn.shopify.com/s/files/1/0431/1682/2692/files/barakhadi_marathi_to_english_download.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/lorabo.pdf
    • https://cdn.shopify.com/s/files/1/0431/5031/1579/files/nobakiritamipikufewo.pdf
    • https://cdn.shopify.com/s/files/1/0429/9702/2879/files/filter_arrayadapter_android.pdf
    • https://cdn.shopify.com/s/files/1/0433/6877/5841/files/77719262596.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_off00005b9f.bin
cf9b4b1a1ebb408abde7c4f0802c017eccb71c16101726476c5853560b009fe1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5B9F 5144 bytes
font_01_sfnt_off00006d23.bin
10a50787810d01cfec088ebd49c9d0cba9773e247e73400e3ebf53ccc77b84fb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6D23 10068 bytes

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