Malicious PDF — malware analysis report

Static analysis result for SHA-256 096c08876c784129…

MALICIOUS

PDF

69.1 KB Created: 2020-11-22 08:53:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 728ba3fcaa019401cac2d20ba430e461 SHA-1: d102ad9d84bde63d4d2c1e6e9d38c73a4d31f0c7 SHA-256: 096c08876c78412974e60906d5d9828c7a7d9c345a39da32118ed1602f828319
94 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link pointing to 'https://cctraff.ru/123?utm_term=free+lightorama+sequences'. The ML classifier also flagged this PDF with high confidence. While no scripts were extracted, the presence of a malicious URL strongly suggests an attempt to lure the user to a compromised site, likely for further exploitation or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 3

  • 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.
  • 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://cctraff.ru/123?utm_term=free+lightorama+sequences
    • https://giwakatunu.weebly.com/uploads/1/3/1/4/131437107/xaloni.pdf
    • https://gasomuvujutomeb.weebly.com/uploads/1/3/4/3/134356107/531d62c3c4.pdf
    • https://zokoniwimotapo.weebly.com/uploads/1/3/4/5/134579139/regafilu.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/wozoxub/26813864675.pdf
    • https://s3.amazonaws.com/jepinebawo/fake_tickets_ticketmaster_resale.pdf
    • https://s3.amazonaws.com/bevarolimesale/annapolis_movie_mp4.pdf
    • https://uploads.strikinglycdn.com/files/2de2b296-8df2-418c-a31c-2a43465661fa/83970524166.pdf
    • https://s3.amazonaws.com/nokiva/reliance_annual_report_2018-_19.pdf
    • https://uploads.strikinglycdn.com/files/ac09834b-6ec8-4169-836a-950b231c6ec3/gulavosusejatinagajide.pdf
    • https://s3.amazonaws.com/voxulija/45789760340.pdf
    • https://s3.amazonaws.com/lomuper/english_language_test_waiver_request_template.pdf
    • https://uploads.strikinglycdn.com/files/46d87182-ee16-4626-a2d5-38d1cf1ce66c/new_england_outerwear.pdf
    • https://uploads.strikinglycdn.com/files/180adc23-f89f-4263-8a09-9c0278e340bb/kegexafakumilufi.pdf
    • https://s3.amazonaws.com/fezenur/pedezexasumuponobopexuda.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_off0000d0b6.bin
78ef7d506cf99e7cb381a4e4da69608b1c06f3021a93c3f74849cc7ba36f50a0
pdf-font-stream PDF embedded font (sfnt) at offset 0xD0B6 5292 bytes
font_01_sfnt_off0000e28e.bin
6b19cf79664024584a769d5d23446414bb7564eef94477b7242343c7693ad62d
pdf-font-stream PDF embedded font (sfnt) at offset 0xE28E 11124 bytes