Malicious PDF — malware analysis report

Static analysis result for SHA-256 e2c289b01d708ed7…

MALICIOUS

PDF

43.4 KB Created: 2020-10-15 08:11:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: b02c6de8b524dd549128da62c229ebf5 SHA-1: fdc3d36073a7c4d7372714e024e63e2914acf12b SHA-256: e2c289b01d708ed7f535059e047839bdf6ed29b5868d7f09c2434998a54edf6b
184 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF file contains a large number of embedded links, many of which point to external PDFs hosted on disposable domains. One link, https://gettraff.ru/123?keyword=wow+warlock+destruction+pvp+guide, is identified as a malicious redirector. The document's structure and link farm indicate a likely attempt at SEO manipulation or to redirect users to malicious content, rather than providing legitimate information.

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://gettraff.ru/123?keyword=wow+warlock+destruction+pvp+guide In PDF document text
    • https://site-1043771.mozfiles.com/files/1043771/43071661565.pdfIn PDF document text
    • https://site-1043928.mozfiles.com/files/1043928/vivovudufadifenesuja.pdfIn PDF document text
    • https://site-1042448.mozfiles.com/files/1042448/rixejebumorixavupitarat.pdfIn PDF document text
    • https://site-1040567.mozfiles.com/files/1040567/nobody_casting_crowns_lyrics.pdfIn PDF document text
    • https://site-1040256.mozfiles.com/files/1040256/veligosotavesuzagi.pdfIn PDF document text
    • https://site-1042988.mozfiles.com/files/1042988/vexemifutokomoxamo.pdfIn PDF document text
    • https://site-1039472.mozfiles.com/files/1039472/82681584404.pdfIn PDF document text
    • https://site-1038815.mozfiles.com/files/1038815/85590730401.pdfIn PDF document text
    • https://site-1040399.mozfiles.com/files/1040399/rewujimikunip.pdfIn PDF document text
    • https://vilukenuxe.weebly.com/uploads/1/3/2/8/132814007/tamivejogu-fipurigewa-rofeku.pdfIn PDF document text
    • https://sepikupi.weebly.com/uploads/1/3/0/7/130738949/5b9fb40.pdfIn PDF document text
    • https://dutitujazekap.weebly.com/uploads/1/3/0/8/130814390/kubokujada-kijezubat-muxin.pdfIn PDF document text
    • https://pigogokeda.weebly.com/uploads/1/3/1/8/131857695/mamip.pdfIn PDF document text
    • https://kelobutino.weebly.com/uploads/1/3/0/9/130969458/sugebo.pdfIn PDF document text
    • https://site-1036764.mozfiles.com/files/1036764/72969037245.pdfIn PDF document text
    • https://site-1042498.mozfiles.com/files/1042498/3651581020.pdfIn PDF document text
    • https://site-1039147.mozfiles.com/files/1039147/trials_of_apollo_indonesia.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/e239ea4b-f5e2-431b-a9ef-c4d9a2fb77ed/74939620282.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3bcf2cfc-8656-4e6a-99d2-bf964d4bbbe9/61751865397.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4916/2654/files/trade_policy_instruments_definition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0389/6217/files/pufitagisadujem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0956/3035/files/43533928595.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5289/1298/files/intermediate_accounting_chapter_14_long_term_liabilities_solutions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0497/3890/7809/files/70723417703.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006b5c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B5C 5468 bytes
SHA-256: 96780aba6ba4e9a5cae37d1ed3a672df1b70a7bde20f2794e1b2ca37b1330bfa
font_01_sfnt_off00007e24.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E24 9980 bytes
SHA-256: 0ce122f177a39a6a8b9bbd6e6cceb6fa4a2b35ee12a56350b522ef9df605e3aa