Malicious PDF — malware analysis report

Static analysis result for SHA-256 fb2e2262a423a368…

MALICIOUS

PDF

46.1 KB Created: 2020-09-22 03:56:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 02839572422b80dbed78028722ecb3ed SHA-1: e205fd541a11e04ecef140d9c0705a097f6a56bf SHA-256: fb2e2262a423a36814464f9e690889201ce98dfc2057e3f58ecf08ddd77619d2
150 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, a common tactic for SEO poisoning or link farming to drive traffic to malicious sites. One prominent URL, 'https://ttraff.me/wix?keyword=percy+jackson+%2526+the+olympians+the+lightning+thief+free+movie+download', is flagged as malicious. The document body, though heavily obfuscated, appears to contain references to this malicious URL and other benign-looking PDF links, suggesting a lure to a malicious redirector.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • 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.
  • 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.me/wix?keyword=percy+jackson+%2526+the+olympians+the+lightning+thief+free+movie+download
    • https://0f6ea249-4b94-481b-8678-62616e7f69d2.filesusr.com/ugd/3ed902_7760812dc3be4c5194767b0365136bf7.pdf?index=true
    • https://96e82be5-4f5d-4807-ae4a-1a784e1e9872.filesusr.com/ugd/760101_e509998240aa4ad4b0763de31f273af7.pdf?index=true
    • https://3896f5ab-712c-44d2-9159-4fabd7bf900e.filesusr.com/ugd/de3d83_b7e7c74167514722be18c6b75f569966.pdf?index=true
    • https://cf3f7caf-237b-484d-9244-d4cae63ece8f.filesusr.com/ugd/314c35_17d61c9201b1400b9c2687dd58c89fbd.pdf?index=true
    • https://5557da2e-f850-4701-bfff-1d82f7e64d98.filesusr.com/ugd/271e65_eab85c7dd85643d7b23f568a47e96017.pdf?index=true
    • https://cdn.shopify.com/s/files/1/0431/5679/9647/files/estudio_biblico_bautismo_en_agua.pdf
    • https://cdn.shopify.com/s/files/1/0428/2505/6412/files/level_142_pictoword_answer.pdf
    • https://6c9d46b9-cb58-4918-a4dc-e9acac2a6959.filesusr.com/ugd/07ef24_2e8adead08084af69fe325a01c9c1530.pdf?index=true
    • https://75c7f3e8-6b1b-4619-bc72-5accf04f800c.filesusr.com/ugd/113e89_7a63c6356acd46c2a61ce6ac70854eae.pdf?index=true
    • https://210507fe-73ec-493e-af3d-195a3484306d.filesusr.com/ugd/5a1791_4e6f648a0cb54024900863a976465ad8.pdf?index=true
    • https://cdn.shopify.com/s/files/1/0432/5477/5970/files/neduxovowumodolukivu.pdf
    • https://cdn.shopify.com/s/files/1/0437/0258/3449/files/plantar_fasciitis_survival_guide.pdf
    • https://cdn.shopify.com/s/files/1/0437/1995/0485/files/zebegijebinefamugamite.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_off00007841.bin
29331f8f49b41bc286dca8f487a30eded9c890c77d7af84c6199ac86b63b45da
pdf-font-stream PDF embedded font (sfnt) at offset 0x7841 5004 bytes
font_01_sfnt_off00008965.bin
ef3d8c13170b87dcde66e8b2badb5f8df6b6a71252cd3a059cbc8081c365cb1f
pdf-font-stream PDF embedded font (sfnt) at offset 0x8965 10192 bytes