Malicious PDF — malware analysis report

Static analysis result for SHA-256 0747419c5f8455c4…

MALICIOUS

PDF

111.8 KB Created: 2020-08-13 10:50:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9bb64d160089149b12f2fa398b43308e SHA-1: 16512eba2db3d9772de5f76055d1d505ad1c121e SHA-256: 0747419c5f8455c4ff1556dcc954b200be6d6b23ac695dee94170301378f9673
154 Risk Score

Malware Insights

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

The PDF contains numerous links, including one pointing to a known malicious redirector, suggesting a phishing or scam attempt. The document body, though partially corrupted, includes the URL and keywords related to sound pollution, reinforcing the lure. The ML classifier also strongly indicated maliciousness.

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.com/wb?keyword=sound%20pollution%20information%20pdf%20in%20telugu
    • http://files.bahamassportsnetwork.com/uploads/1/3/0/7/130775027/xodazel_gazutovapotawe_dabalex.pdf
    • http://files.melissahillart.com/uploads/1/3/2/6/132682684/79b9e7cd4da8069.pdf
    • http://files.marthatorresfoodstylist.com/uploads/1/3/2/7/132710780/721845.pdf
    • http://files.marauderbots.com/uploads/1/3/0/7/130776110/249660.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://fedorahosted.org/lohit
    • http://www.daltonmaag.com/
    • https://cdn.shopify.com/s/files/1/0433/7578/8184/files/fizusafibikonukefedixuxej.pdf
    • https://cdn.shopify.com/s/files/1/0431/9887/3763/files/adj_clause_exercise.pdf
    • https://cdn.shopify.com/s/files/1/0432/4907/4336/files/20289387623.pdf
    • https://cdn.shopify.com/s/files/1/0430/7995/8679/files/32633920550.pdf
    • https://cdn.shopify.com/s/files/1/0431/6119/0559/files/mulurorabaxazuditepa.pdf
    • https://cdn.shopify.com/s/files/1/0428/5543/2348/files/bozebemugefemikikifezop.pdf
    • https://cdn.shopify.com/s/files/1/0440/5959/0806/files/nanomaterials_textbook.pdf
    • https://cdn.shopify.com/s/files/1/0437/3803/8423/files/22909817323.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/babape.pdf
    • https://cdn.shopify.com/s/files/1/0433/5131/0488/files/70284538270.pdf
    • https://cdn.shopify.com/s/files/1/0431/9900/4827/files/nopixu.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000df97.bin
df5d58bc1445c0cebd9570f9020d49093d7c9948f86eaa7d7c1c445423cf8f83		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDF97 5168 bytes
font_01_sfnt_off0000f108.bin
45930442e0cef24179fd9d6d482ce1f420647f4ae5d03a788ddc78adb99781ac		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF108 83108 bytes
font_02_sfnt_off0001813a.bin
b64b4244eead6a9bb8a3efbdb9026faccc293856e4d2bcca489f95b125b187de		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1813A 9152 bytes
font_03_sfnt_off0001a095.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1A095 4324 bytes

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