Malicious PDF — malware analysis report

Static analysis result for SHA-256 77c62d7acf458351…

MALICIOUS

PDF

56.0 KB Created: 2020-08-11 01:34:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: af4435c62242c972e0e0c69c91d8ce84 SHA-1: 2bb6793d14a730d7d9964de3acf348b7be003ab1 SHA-256: 77c62d7acf45835137fffefdd89b2da22f876e54d80641392671767cc6614366
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many pointing to what appears to be a link farm designed to host other PDFs. One prominent link, https://ttraff.cc/pify?keyword=technological+innovation+in+education+pdf, is identified as a malicious redirector. This suggests the document's primary purpose is to direct users to malicious infrastructure, likely for further exploitation or phishing.

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=technological+innovation+in+education+pdf
    • http://files.cads-tt.com/uploads/1/3/0/9/130969965/2f712.pdf
    • http://files.charlotteponyclub.com/uploads/1/3/1/0/131069897/paxumaputane_biwexukuduri_zukajapa_xoxuwekitev.pdf
    • http://files.tskjrphotos.com/uploads/1/3/2/6/132682063/gipezawasisabiwonike.pdf
    • http://files.rwsstem.com/uploads/1/3/0/7/130739288/fetefaf-sanozosi-gopuziwipamixaf.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://cdn.shopify.com/s/files/1/0428/6165/8279/files/78543373029.pdf
    • https://cdn.shopify.com/s/files/1/0428/6811/3574/files/halle_barry_in_monster_ball.pdf
    • https://cdn.shopify.com/s/files/1/0434/8998/4678/files/definition_of_balanced_diet.pdf
    • https://cdn.shopify.com/s/files/1/0430/2172/9955/files/kogoxujurevi.pdf
    • https://cdn.shopify.com/s/files/1/0432/6899/7284/files/27270526533.pdf
    • https://cdn.shopify.com/s/files/1/0432/5149/9170/files/29182774469.pdf
    • https://cdn.shopify.com/s/files/1/0429/2267/2284/files/mowimurixazokola.pdf
    • https://cdn.shopify.com/s/files/1/0434/8785/4749/files/81044835311.pdf
    • https://cdn.shopify.com/s/files/1/0433/8139/1514/files/tajebawejujozuzalaxuje.pdf
    • https://cdn.shopify.com/s/files/1/0438/6720/9883/files/proyecto_arpanet.pdf
    • https://cdn.shopify.com/s/files/1/0430/5246/6325/files/zuravi.pdf
    • https://cdn.shopify.com/s/files/1/0429/9803/8679/files/89564810855.pdf
    • https://cdn.shopify.com/s/files/1/0428/7981/1750/files/31339333840.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008f50.bin
ea6592bdcdd98f9dbec814c603a5b706d542a3adc3be61c621e3e7a6243bce8f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8F50 5036 bytes
font_01_sfnt_off0000a071.bin
3f01274a10b3fa90a60c840567e899e97a140272f6e4dc91a93827424413778e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA071 10544 bytes
font_02_sfnt_off0000c47c.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC47C 4324 bytes

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