Malicious PDF — malware analysis report

Static analysis result for SHA-256 a47aa8aca90e98cf…

MALICIOUS

PDF

33.1 KB Created: 2020-08-19 01:25:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1e543c692a1440edeb13dff43eb607ad SHA-1: 41d851d9cbdee284f817e0149388afcbad704159 SHA-256: a47aa8aca90e98cfa2d5aa67025fa973c8ce1f727537fb6a3fe54bb4337e5645
152 Risk Score

Malware Insights

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

The PDF contains a prominent link to 'ttraff.com', identified as a malicious redirector. This URL is presented within the document body, disguised as a link to sheet music, suggesting a social engineering lure. The presence of numerous other PDF links, many pointing to Shopify, indicates a link farm strategy, likely to improve SEO for malicious content or to obscure the true destination. No scripts were extracted, and the document body itself is heavily obfuscated, but the primary malicious intent is clear from the redirector URL.

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.com/pify?keyword=pink+panther+bb+clarinet+sheet+music
    • http://files.issl.space/uploads/1/3/0/7/130776561/vetifijus.pdf
    • https://cdn.shopify.com/s/files/1/0434/3303/3877/files/aqa_a_level_economics_revision_notes.pdf
    • https://cdn.shopify.com/s/files/1/0446/0825/8211/files/list_of_sports_and_games.pdf
    • https://cdn.shopify.com/s/files/1/0434/0734/3772/files/revenge_minecraft_song.pdf
    • https://cdn.shopify.com/s/files/1/0464/5348/9832/files/mugopabin.pdf
    • https://cdn.shopify.com/s/files/1/0443/4133/0076/files/sixajigukavezoza.pdf
    • https://cdn.shopify.com/s/files/1/0431/7901/6360/files/mufedokufizima.pdf
    • https://cdn.shopify.com/s/files/1/0431/1842/8326/files/public_policy_in_canada_miljan.pdf
    • https://cdn.shopify.com/s/files/1/0432/2010/7428/files/simple_autobiography_template.pdf
    • https://cdn.shopify.com/s/files/1/0428/2312/3100/files/43032469002.pdf
    • https://cdn.shopify.com/s/files/1/0431/0233/9232/files/anamnesis_veterinaria.pdf
    • https://cdn.shopify.com/s/files/1/0431/1062/9532/files/duwalarorinakise.pdf
    • https://cdn.shopify.com/s/files/1/0435/9002/5375/files/convert_to_word_desktop_software_for_pc_registration_key.pdf
    • https://cdn.shopify.com/s/files/1/0431/7587/0613/files/jixit.pdf
    • https://cdn.shopify.com/s/files/1/0429/1995/2550/files/fiwavelobezikij.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_off000045c2.bin
f25fd0e9ebee4f8a2d6e02b42c531701759ce64c3bdba4ad2f239e8979982cd2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x45C2 5380 bytes
font_01_sfnt_off000057ce.bin
176cd94daa51d04c614ca50b9304c25173819f730460ff794b256c22d90041aa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x57CE 9276 bytes

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