Malicious PDF — malware analysis report

Static analysis result for SHA-256 5fb2455e60b6c92d…

MALICIOUS

PDF

42.3 KB Created: 2020-11-04 16:46:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7e19e9b9b8caa097f370dd31a97b82ea SHA-1: 129aa58d69121d2d43739f27ab09f2eb7d5e6af7 SHA-256: 5fb2455e60b6c92dc32c571e413368fbd7bd8a35bf030dd412264416dfded460
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link to a known malicious redirector, ggtraff.ru, which is disguised as a search result for a product manual. This suggests a phishing or scam attempt to redirect users to malicious content. The PDF also contains a large number of external links, many of which point to benign-looking PDF files, indicating a potential link farm or SEO manipulation tactic to improve search engine ranking for malicious content.

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://ggtraff.ru/strik?keyword=at+t+samsung+galaxy+s6+owners+manual
    • https://nubojubixuxo.weebly.com/uploads/1/3/1/4/131410311/pisukelufeda.pdf
    • https://rajomiluti.weebly.com/uploads/1/3/2/6/132682989/8d4c1a2.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/f39745bd-115e-4fca-811a-8b1bcde91cca/maquete_de_saneamento_bsico.pdf
    • https://uploads.strikinglycdn.com/files/0e919d43-e05a-42cd-af24-95ce5e090b29/21768448637.pdf
    • https://uploads.strikinglycdn.com/files/f75ae627-eb92-488b-8eb1-14449040bf46/stump_root_device_is_patched.pdf
    • https://uploads.strikinglycdn.com/files/f71dec99-119c-4825-8a68-30a7846a32d7/toxutudoramekar.pdf
    • https://uploads.strikinglycdn.com/files/ef0e9623-400d-442f-8ab0-fe4564c4ddd1/cuisinart_deep_fryer_target.pdf
    • https://uploads.strikinglycdn.com/files/08494eb8-15ab-4899-96f1-6dbbd72517a0/battlefront_2_cheats_ps2.pdf
    • https://s3.amazonaws.com/xanebavifamopez/audit_report_of_tata_motors.pdf
    • https://s3.amazonaws.com/legenapi/tovumuk.pdf
    • https://s3.amazonaws.com/tadovu/nosuzumiz.pdf
    • https://s3.amazonaws.com/gomakobez/sikumo.pdf
    • https://s3.amazonaws.com/xanebavifamopez/rirawoxe.pdf
    • https://uploads.strikinglycdn.com/files/da4d7a0a-5d07-4cff-a4a5-3e91d1e4b072/11863991862.pdf
    • https://uploads.strikinglycdn.com/files/83f8a578-d0d6-4054-a24e-f841f62717dd/50720827507.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_off000067a1.bin
1820beec6eb31a0262fb47ac701b7e64ab1d1d67f496343a448a2acf3e681026		 pdf-font-stream PDF embedded font (sfnt) at offset 0x67A1 5412 bytes
font_01_sfnt_off00007a0a.bin
d616d8882629500ae06fd8018062666218a4b56bfe952388dd81696a85a96243		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7A0A 10168 bytes

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