Malicious PDF — malware analysis report

Static analysis result for SHA-256 da100ebe9b991f2e…

MALICIOUS

PDF

41.5 KB Created: 2020-09-19 03:14:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 31b7c9cac3d5761e6739dc131548a1b5 SHA-1: 2283e6af88f677ce9cfc119e029579bcef67e111 SHA-256: da100ebe9b991f2ee364cdc583d1706489cf17bebc33c514bfe1dc9c60fbaf1f
184 Risk Score

Malware Insights

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

The PDF contains numerous embedded URLs, with a critical heuristic firing for a link to a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'Avengers Endgame' and the malicious URL, suggesting a lure for users seeking the movie. The ML classifier strongly indicates maliciousness. The primary attack vector appears to be directing users to the malicious URL for further compromise.

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://ttraff.club/wix?keyword=avengers+endgame+full+movie+online+reddit In PDF document text
    • http://kalijewib.emmanuelcrespoartworks.com/uploads/1/3/2/6/132683334/8767597.pdfIn PDF document text
    • http://files.mazarchery.com/uploads/1/3/2/8/132815872/46b0c6.pdfIn PDF document text
    • http://dedesavi.thecleverquill.ca/uploads/1/3/0/7/130776228/0e6723e719aa.pdfIn PDF document text
    • http://files.csd4tech.com/uploads/1/3/1/4/131438557/8568111.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://7ecef1d8-b3c2-42cf-8008-98a66ac2c56a.filesusr.com/ugd/e2a635_d4d1bb1a429e45ca92e34ae08a0cc24b.pdf?index=trueIn PDF document text
    • https://ec1fb280-d572-4340-b084-e5b3a0d4289a.filesusr.com/ugd/c83fdb_f7acf657e0da480dbffb93ffc2de6057.pdf?index=trueIn PDF document text
    • https://741186c2-acb8-4415-b86d-7f3f35c83dfe.filesusr.com/ugd/b1b3ad_6471db8d35e142d3a2f03983573f15fb.pdf?index=trueIn PDF document text
    • https://42a515c8-d11a-490d-bc24-92c53ae5a882.filesusr.com/ugd/04c368_5a787c07bab94807a631ef7dcaf544ee.pdf?index=trueIn PDF document text
    • https://fbc0a444-d5df-4746-9076-35e49b8262e3.filesusr.com/ugd/140efa_3883624cca094a4e94e3885a9a7b23f1.pdf?index=trueIn PDF document text
    • https://cdn.shopify.com/s/files/1/0464/8573/3528/files/79574742262.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6208/3232/files/adivasi_dj_mix_song.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4469/9288/files/engineering_maths_formulas_download.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006357.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6357 5276 bytes
SHA-256: 218a0473c4a0630d77984dc8c926d5ccb28744a82311b59fb41bfe3cd1984559
font_01_sfnt_off0000753f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x753F 10404 bytes
SHA-256: a13851649aa2760816ea6b31a9cb56e6ad1fa27b2d2cedca62576d79d85799e0

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