Malicious PDF — malware analysis report

Static analysis result for SHA-256 04d3a75cceb9eb82…

MALICIOUS

PDF

44.7 KB Created: 2020-08-12 01:58:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: d7a24f0db532bb9b5f595a407624f1e7 SHA-1: 6174e78ea3dc5acc91fafc62cfb8de8f368dfbcd SHA-256: 04d3a75cceb9eb8275cfb8d3fdb59cbc853121880f54af5630d46d9de5daf5f5
154 Risk Score

Malware Insights

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

The PDF contains numerous links, masquerading as a "cluster computing pdf download", which redirect to a malicious domain (ttraff.com). This indicates a phishing or scam attempt designed to lead users to malicious infrastructure. The ML classifier strongly supports the malicious verdict.

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/pify?keyword=cluster+computing+pdf+download In PDF document text
    • http://files.ncgconsultants.com/uploads/1/3/1/6/131636965/zuwapudip.pdfIn PDF document text
    • http://gofififus.lakemacartstudio.com.au/uploads/1/3/1/6/131607600/xosulofajawuwi-tomobelumijiwif-loxox-masem.pdfIn PDF document text
    • http://files.spaidsllc.com/uploads/1/3/0/8/130813510/e7a54f.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3653/2136/files/64849379760.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/6461/9171/files/grey_knights_codex_7th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3316/5986/files/pozopa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4211/1650/files/61774600309.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8105/6931/files/50637217028.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4379/8683/files/building_automation_systems_a_to_z.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1456/9631/files/mathematics_book_for_gate.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9478/5694/files/12605627079.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9866/9220/files/sigem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6397/4805/files/zijezemi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4428/1247/files/zitun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8768/1954/files/88311705416.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007130.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7130 5472 bytes
SHA-256: ad8fc777117ae9b462ed1717af802c557fc5585c4b1d97f9b8946fe60419cdf5
font_01_sfnt_off000083c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83C0 9952 bytes
SHA-256: d413081afc7e40c7f24a2fc839794ed29cdd74d96251a2875997de994f6e7c64

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