Malicious PDF — malware analysis report

Static analysis result for SHA-256 6f69e2cf4d2531c3…

MALICIOUS

PDF

53.0 KB Created: 2020-08-13 23:23:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0c26f7cb9c294e350c88dca8f06c3b8a SHA-1: 0e0a9a15f259c8a685c7625194c017238ce6dcc9 SHA-256: 6f69e2cf4d2531c3d0ddc3df158f6b5f4bb33b1375f6a7cb78e9268edca3eaf3
154 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with a critical heuristic firing for a malicious redirector. The document body, though heavily obfuscated, contains a URL that matches the redirector found by heuristics. The presence of numerous external links suggests a link farm or redirection attempt, likely to deliver a malicious payload or phish for credentials.

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=ascension+wow+build+guide
    • http://files.mrbuker.com/uploads/1/3/0/7/130775677/4680a1c963f0.pdf
    • http://gijerat.alpacacentral.ca/uploads/1/3/1/4/131408024/684df4034b.pdf
    • http://files.stonerfitness.club/uploads/1/3/1/8/131872178/3871158.pdf
    • http://files.colfaxrock.com/uploads/1/3/2/6/132696048/zobadasovomibavin.pdf
    • http://files.dlsu-aki.com/uploads/1/3/1/4/131438460/puzuv-kedabibuf-rasogaratum-xeneju.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0432/8233/3856/files/89359477017.pdf
    • https://cdn.shopify.com/s/files/1/0432/2426/8968/files/caballo_de_troya_4_alconet.pdf
    • https://cdn.shopify.com/s/files/1/0427/8131/1132/files/93708027961.pdf
    • https://cdn.shopify.com/s/files/1/0437/8414/3010/files/pojubigom.pdf
    • https://cdn.shopify.com/s/files/1/0438/1143/8752/files/jiposasorabivatipoluf.pdf
    • https://cdn.shopify.com/s/files/1/0438/9378/4728/files/17468501776.pdf
    • https://cdn.shopify.com/s/files/1/0438/4843/3829/files/14794910539.pdf
    • https://cdn.shopify.com/s/files/1/0433/1739/5614/files/saritifogezunorifejixev.pdf
    • https://cdn.shopify.com/s/files/1/0433/5144/1562/files/66854822700.pdf
    • https://cdn.shopify.com/s/files/1/0434/6108/3301/files/batowowedesovefamezobifag.pdf
    • https://cdn.shopify.com/s/files/1/0432/8692/1382/files/possessive_pronouns_exercises_with_answers.pdf
    • https://cdn.shopify.com/s/files/1/0431/1918/1978/files/black_nobility.pdf
    • https://cdn.shopify.com/s/files/1/0427/9074/8316/files/27339978183.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_off0000893e.bin
b7f317aa0f29cd34df008dc84d8f376d2685882a57a4a5cd0d86477d0adf885a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x893E 2828 bytes
font_01_sfnt_off00009339.bin
745c82f68409776673b71a5b55bc27b7447f487214b5dc9353ee7711d8cedcdb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9339 5020 bytes
font_02_sfnt_off0000a469.bin
18ceb755dace4f636f505dae69acb2347ecfa841cf9dce92e0973a055a8d38b7		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA469 10024 bytes

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