Malicious PDF — malware analysis report

Static analysis result for SHA-256 60d136650d26130c…

MALICIOUS

PDF

45.7 KB Created: 2020-07-27 12:28:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: dd705da90d1f5c831dfa8ffe00bc998f SHA-1: a1614779861581197385f936e3028200da6d1d5f SHA-256: 60d136650d26130c8e64032af74e40b2c1dc7a2ce1a7ec1660b0565c1c334bdc
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a link to a known malicious redirector, which is likely intended to lead the user to a phishing or malware distribution site. The document also features a large number of external PDF links, suggesting a link farm for SEO manipulation or to obscure malicious destinations. No scripts were extracted, but the presence of malicious links and the heuristic firings strongly indicate a phishing or redirection attack.

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=joint+commission+survey+activity+guide+july+2019
    • http://files.coachdavidhenley.com/uploads/1/3/2/3/132303150/7319031.pdf
    • http://files.stemacademyband.com/uploads/1/3/1/4/131454345/kurub_jesulademeseza.pdf
    • http://files.parishofhoylandsaintandrew.com/uploads/1/3/1/4/131438741/xivajesenam_kizagowo_poniwonaluwiw.pdf
    • http://files.dsilvadesigns.com/uploads/1/3/0/8/130815311/9e52a6847d120.pdf
    • http://files.dobbelduo.com/uploads/1/3/1/4/131407029/7a91a485e1.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0430/2998/7489/files/79300323834.pdf
    • https://cdn.shopify.com/s/files/1/0432/2462/9411/files/dositojewugiborozob.pdf
    • https://cdn.shopify.com/s/files/1/0429/2552/3103/files/doponapitunaparudolizidas.pdf
    • https://cdn.shopify.com/s/files/1/0433/1310/2998/files/78446223794.pdf
    • https://cdn.shopify.com/s/files/1/0431/5293/3024/files/vekimexosam.pdf
    • https://cdn.shopify.com/s/files/1/0428/3544/3875/files/92601311472.pdf
    • https://cdn.shopify.com/s/files/1/0427/4031/8375/files/dunijazoxakuzibodexafu.pdf
    • https://cdn.shopify.com/s/files/1/0435/4949/1359/files/kegesenavo.pdf
    • https://cdn.shopify.com/s/files/1/0427/9628/6111/files/33069299803.pdf
    • https://cdn.shopify.com/s/files/1/0430/3477/1610/files/560086436.pdf
    • https://cdn.shopify.com/s/files/1/0435/2635/7152/files/pamiginefiguvuguxojin.pdf
    • https://cdn.shopify.com/s/files/1/0431/3861/3399/files/76767579529.pdf
    • https://cdn.shopify.com/s/files/1/0430/1848/5923/files/10965020849.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007252.bin
4701249759954f68acca31c9f2ff28cdd17c61ece5c99d4a09a707556ebc2f38		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7252 5852 bytes
font_01_sfnt_off00008632.bin
ee38ee0acffa5a647c5b1c198c69287197a0513043bd18f9ddf554863d3736d3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8632 10364 bytes

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