Malicious PDF — malware analysis report

Static analysis result for SHA-256 015e78047f7bb028…

MALICIOUS

PDF

41.4 KB Created: 2020-08-30 04:54:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9756469964f83b653cf60100976df152 SHA-1: 13bea9b46adee2b89058baf9cf375e3a14fc69a0 SHA-256: 015e78047f7bb028c5ba38424c16ad6977e8d77fca93c8a282cce583fba9c240
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains numerous embedded links, with a critical heuristic identifying a malicious redirector. The document body, though heavily obfuscated, contains text related to downloading software and includes the primary malicious URL. The presence of a link farm suggests an attempt to distribute malicious content or engage in SEO poisoning.

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/wix?keyword=descargar+forza+horizon+2+para+pc+es
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0435/0181/3915/files/sexenepebilamiz.pdf
    • https://cdn.shopify.com/s/files/1/0428/8764/3303/files/elite_knight_armor_ds3.pdf
    • https://cdn.shopify.com/s/files/1/0432/0460/8155/files/47683469375.pdf
    • https://static.usrfiles.com/ugd/865d50_00e0cefec60a4a25a95e4b038c8ac7bf.pdf
    • https://static.usrfiles.com/ugd/b8c837_fe4db59a38d34125ab614f0278647cb5.pdf
    • https://static.usrfiles.com/ugd/b8c837_f998caf58f444d5c9ba04198824a294b.pdf
    • https://static.usrfiles.com/ugd/e3ed1f_697e32fe921d4ba69ad50337a64809ca.pdf
    • https://static.usrfiles.com/ugd/12f4eb_ed4d7250273141238e2cff63a6417a5b.pdf
    • https://cdn.shopify.com/s/files/1/0428/2312/3100/files/43735466919.pdf
    • https://cdn.shopify.com/s/files/1/0430/7006/2754/files/30154173559.pdf
    • https://cdn.shopify.com/s/files/1/0431/6993/9612/files/xikepu.pdf
    • https://cdn.shopify.com/s/files/1/0433/7749/2118/files/all_electronic_components.pdf
    • https://cdn.shopify.com/s/files/1/0438/3725/9936/files/gangster_movies_2019.pdf
    • https://cdn.shopify.com/s/files/1/0428/2381/1239/files/zomugasunajegiw.pdf
    • https://cdn.shopify.com/s/files/1/0431/4877/1477/files/alan_wake_xbox.pdf
    • https://cdn.shopify.com/s/files/1/0461/1997/7124/files/brother_in_arms_apk_game.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_off0000624c.bin
7c6525186524f695b93559bb87507d7d09e1594b671470e3d55746a0be2705aa
pdf-font-stream PDF embedded font (sfnt) at offset 0x624C 5428 bytes
font_01_sfnt_off000074cd.bin
18578b16e746776578dfd99243930a8aa978bfffe8bf2cc99c80db6ec3ad8db4
pdf-font-stream PDF embedded font (sfnt) at offset 0x74CD 10648 bytes