Malicious PDF — malware analysis report

Static analysis result for SHA-256 cc00a9bda0dfb0d2…

MALICIOUS

PDF

43.5 KB Created: 2020-08-07 02:27:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f525ddada9b462c40c3a16d1a7ebd424 SHA-1: a7c0ee0474b4ba17cf2056be9721e1a75ed7d53d SHA-256: cc00a9bda0dfb0d20b4000f748d2a71fe0ff82d6e6d0cfa6e4699a8bbb9d5a11
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains numerous embedded links, with a critical heuristic firing indicating it links to known malicious redirector infrastructure. The document body, while containing garbled text, includes a URL that mirrors the search query 'harry potter and the cursed child full story pdf', suggesting a lure to trick users into clicking malicious links. 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.ru/wb?keyword=harry%20potter%20and%20the%20cursed%20child%20full%20story%20pdf
    • http://files.promival.com/uploads/1/3/1/3/131398598/nibexivugutisenexap.pdf
    • http://jeladuw.drawinginchurch.com/uploads/1/3/0/8/130874064/xeminugabekad-kopabiseg-zaxobivuf.pdf
    • http://files.balasanabarbarayoga.com/uploads/1/3/1/4/131483266/5268468.pdf
    • http://files.liftsmartperformance.com/uploads/1/3/0/7/130740442/babujokaferov.pdf
    • http://files.twistssponge.com/uploads/1/3/2/6/132683087/f0bf328d.pdf
    • https://cdn.shopify.com/s/files/1/0435/1878/7736/files/introduction_to_discrete_mathematics_book.pdf
    • https://cdn.shopify.com/s/files/1/0429/4977/1430/files/caustic_embrittlement_in_boilers.pdf
    • https://cdn.shopify.com/s/files/1/0431/8344/0036/files/25989086110.pdf
    • https://cdn.shopify.com/s/files/1/0428/1748/7011/files/69185451496.pdf
    • https://cdn.shopify.com/s/files/1/0436/7450/1273/files/77548407893.pdf
    • https://cdn.shopify.com/s/files/1/0432/7692/7141/files/55927962929.pdf
    • https://cdn.shopify.com/s/files/1/0432/8567/6192/files/dezajulimed.pdf
    • https://cdn.shopify.com/s/files/1/0438/2624/9885/files/paxigegomanuvebi.pdf
    • https://cdn.shopify.com/s/files/1/0430/3598/4029/files/pofolifotojetubovoj.pdf
    • https://cdn.shopify.com/s/files/1/0429/4275/9071/files/latipepinixemafiwame.pdf
    • https://cdn.shopify.com/s/files/1/0429/1716/7267/files/raxuradetev.pdf
    • https://cdn.shopify.com/s/files/1/0438/1658/3325/files/wogim.pdf
    • https://cdn.shopify.com/s/files/1/0436/1686/2371/files/poulan_pl3816_manual.pdf
    • https://cdn.shopify.com/s/files/1/0431/0892/5600/files/faxenidupilogixezidesofaw.pdf
    • https://cdn.shopify.com/s/files/1/0433/4141/4552/files/15365116393.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/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006b70.bin
01a7704bbea3b95479ce7f33b74b682db6d7585a5fd0dc640164526bbb5a8c1e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6B70 5308 bytes
font_01_sfnt_off00007d80.bin
0968599cb814d04c4176ba7f80d4566ce1531adc7a5653d74c38da7ebf8a2973		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7D80 10332 bytes

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