Malicious PDF — malware analysis report

Static analysis result for SHA-256 6be0136241ecae00…

MALICIOUS

PDF

42.6 KB Created: 2020-09-03 23:06:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c3abbc54ed8d9a997dc9148811fb5c19 SHA-1: bcda893e59ff2242b93f53e870d3fac21123c6b6 SHA-256: 6be0136241ecae006d2bfbca73a202b7e24edfcb40aace5beeeb3b03d4c06163
154 Risk Score

Malware Insights

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

This PDF document contains multiple embedded links, with one prominent URL pointing to a redirector service. The document body, though heavily obfuscated, contains text related to 'Uefa champions league pc game' and a URL that appears to be a lure. The presence of a malicious redirector and a large number of external PDF links suggests an attempt to drive traffic to potentially malicious sites or phishing pages, likely delivered as a spearphishing attachment.

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.me/pify?keyword=uefa+champions+league++pc+game
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://static.usrfiles.com/ugd/bdeb4c_0b6134889da1457693c87672c07dddf5.pdf
    • https://static.usrfiles.com/ugd/3aee12_64a8cb5d1b94497c8b11b0e5311e00b6.pdf
    • https://static.usrfiles.com/ugd/724bd4_b79e01f3d1894083b845a2ecc52940b5.pdf
    • https://static.usrfiles.com/ugd/b8c837_9e66fdcf727c4596b36f7747d3006f46.pdf
    • https://static.usrfiles.com/ugd/49be48_e4a9d417c6df40a8b2ed14dfe92c2305.pdf
    • https://static.usrfiles.com/ugd/c4ccc4_2603788ee14f49eb9bbe879478f2eb73.pdf
    • https://static.usrfiles.com/ugd/17beed_b7d77c88e52943b9b8a1dfa50d5fe89d.pdf
    • https://static.usrfiles.com/ugd/b96e41_4ff8eb9d8a5d4c25836fdb864c220168.pdf
    • https://static.usrfiles.com/ugd/1be480_9426809fc24345f58d1a5b1ddcf6279e.pdf
    • https://static.usrfiles.com/ugd/10e3af_5301075371004ef39ef0cbf42a53a4d8.pdf
    • https://static.usrfiles.com/ugd/735424_5ef34a5261354218826197b797e80414.pdf
    • https://static.usrfiles.com/ugd/963627_3d10d5c1384d411980cb21a962ce6013.pdf
    • https://cdn.shopify.com/s/files/1/0437/2683/1784/files/nuxevudeparakepixon.pdf
    • https://cdn.shopify.com/s/files/1/0428/2286/0966/files/gusaxutoko.pdf
    • https://cdn.shopify.com/s/files/1/0435/8835/4211/files/creepy_piano_music.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_off0000669e.bin
4b667a1aa39fdf0e9feeedf5c31eaa5cb1459769033ac454388c6ff19edbdde4
pdf-font-stream PDF embedded font (sfnt) at offset 0x669E 5324 bytes
font_01_sfnt_off0000789d.bin
238be99c77d88608a1d283a323ae9a44227a2301f067433b0f1aae8fbbf7e90d
pdf-font-stream PDF embedded font (sfnt) at offset 0x789D 10832 bytes