Malicious PDF — malware analysis report

Static analysis result for SHA-256 6fb80f7150ce1834…

MALICIOUS

PDF

48.2 KB Created: 2020-10-16 11:00:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 771f89aa187062a8194f64403ba70d47 SHA-1: 334e02aaddbb958d836351dde6c58777dee02a30 SHA-256: 6fb80f7150ce1834b7213c3e64d813dbd82ffc7e69bab7dcb00438738fd62d68
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://ggtraff.ru/123?keyword=bases+psychologiques+du+coaching+professionnel+pdf In PDF document text
    • https://cdn-cms.f-static.net/uploads/4366313/normal_5f870f68d4405.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366042/normal_5f890cd349603.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367268/normal_5f88b710f15c6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368229/normal_5f88d240ab0ab.pdfIn PDF document text
    • https://jatorogerujew.weebly.com/uploads/1/3/2/7/132710569/sijuwoxujupid.pdfIn PDF document text
    • https://zoxuzuxebexot.weebly.com/uploads/1/3/0/9/130969059/jogowezokuvaxu.pdfIn PDF document text
    • https://genamimiwovem.weebly.com/uploads/1/3/1/6/131636881/fabepinoxovexuwuzo.pdfIn PDF document text
    • https://bigogewoxof.weebly.com/uploads/1/3/0/7/130739615/femoxazuji.pdfIn PDF document text
    • https://mabanopovofed.weebly.com/uploads/1/3/1/4/131453130/026c38ab7d.pdfIn PDF document text
    • https://zesopupejilit.weebly.com/uploads/1/3/0/7/130738861/zofosowoz-dijewejelenub-joditoxu-kukowizutus.pdfIn PDF document text
    • https://vuxozajuje.weebly.com/uploads/1/3/1/3/131379873/rezareludufiven-voxodopi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.opentle.orgIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/ad04aad3-9b40-459c-926c-1ab0955cac4d/36986266703.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8d6bd7ed-b973-487c-9918-cdd6c15d3109/zalunugoru.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/11dca09e-6699-4342-a1db-e9acb161f673/57979963581.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9e1f7967-352f-4666-b0c1-65191ff11f7f/xigurifudukar.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/13b4712a-08cf-4b28-91c0-6bf6d16b2e40/putavezorifewomazet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3173/9033/files/murefu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0495/2018/1414/files/shiva_purana_kannada_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/0793/4103/files/chapter_7_the_nervous_system_answer_key.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0477/3920/7836/files/mega_man_5_boss_weakness_chart.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0477/2941/0204/files/bupujidekozepak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8211/1390/files/all_your_yesterdays.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0501/6407/2613/files/novidiwojipilo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/8187/8689/files/bowman_lake_california_fishing.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text
    • http://www.gnu.org/licenses/gpl.htmlIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005bf6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5BF6 5496 bytes
SHA-256: 880f1500a501e6d35ba5b116359e45d39da76b001db32ac672f386e38039dc39
font_01_sfnt_off00006e7f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E7F 7644 bytes
SHA-256: da7c53c6cfbb1b18b66a08fabf2a2aed8554f542f400e30e6b7f5ad2d79b0dd1
font_02_sfnt_off00008324.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8324 9712 bytes
SHA-256: 405bf2f198f189b413315f3f29e459664f7d9d730db4b57ea1b8c9e6ad5004d8
font_03_sfnt_off0000a442.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA442 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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