Malicious PDF — malware analysis report

Static analysis result for SHA-256 070b6030fd495739…

MALICIOUS

PDF

43.4 KB Created: 2020-08-30 02:33:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 63c4c7f8b6d790b227f0380388e8a427 SHA-1: f713a0c46e64477cd79181f7ae1150d7fd33470d SHA-256: 070b6030fd49573918abf69c277f8d257034962c5dcf1495af7e64821404bd2f
154 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to malicious infrastructure, specifically identified by the 'PDF_MALICIOUS_REDIRECTOR_LINK' heuristic. The document body also contains a URL that appears to be a lure for 'Gta 5 jester classic', further supporting a phishing or scam attempt. The presence of numerous external PDF links suggests a link farm, a common tactic for SEO manipulation or distributing 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://ttraff.cc/wix?keyword=gta+5+jester+classic
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0435/4804/9572/files/beautiful_in_white_free_piano.pdf
    • https://cdn.shopify.com/s/files/1/0436/8983/6697/files/valenuxanebut.pdf
    • https://cdn.shopify.com/s/files/1/0438/4836/8288/files/faxepamelepojutora.pdf
    • https://static.usrfiles.com/ugd/b8c837_cf26840b3271456e9800660efd4b4d8a.pdf
    • https://static.usrfiles.com/ugd/b8c837_a52dcec19ad449e08cce8e75e85e1561.pdf
    • https://static.usrfiles.com/ugd/9ec29b_9944c3b574ad49c48afaeae64d2ef45e.pdf
    • https://static.usrfiles.com/ugd/e2f7e1_a83bf8d1da4c4a3f86329513e3af230e.pdf
    • https://static.usrfiles.com/ugd/3f80ec_d69b7667bf504bbd814445d0488f04d9.pdf
    • https://static.usrfiles.com/ugd/ee6770_2a86022701e14e3c87ba758fc847d018.pdf
    • https://cdn.shopify.com/s/files/1/0432/5317/0334/files/buvutibo.pdf
    • https://cdn.shopify.com/s/files/1/0459/7340/5863/files/highlight_duplicate_cells_in_google_sheets.pdf
    • https://cdn.shopify.com/s/files/1/0430/6888/3098/files/zixigubemaker.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_off00006804.bin
887a2b596b5363cb00700c473cd9402ded23b91a5be4c90da347bfaa76e2d079
pdf-font-stream PDF embedded font (sfnt) at offset 0x6804 5024 bytes
font_01_sfnt_off00007936.bin
5a9332bde2eb031508c3b1299f38b9cf476f905ec798a5c202a5854284324ec0
pdf-font-stream PDF embedded font (sfnt) at offset 0x7936 12120 bytes