Malicious PDF — malware analysis report

Static analysis result for SHA-256 c120c285901c6268…

MALICIOUS

PDF

45.4 KB Created: 2020-09-03 08:47:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0eba667d1643398bf2cdd0bacc741af8 SHA-1: f6a7f4973d2fae0c814361a7616d73ae9dc1cd13 SHA-256: c120c285901c6268a144e34f3a172c0bf9e9387fa410cd0a12ecab49a3a559c1
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a link disguised as a download for 'Angry birds space hack', which redirects to a malicious URL. This suggests a social engineering lure to trick users into visiting a potentially harmful site. The PDF also contains a large number of links to external PDFs, likely for SEO manipulation or to obscure the malicious redirector. No scripts were extracted, limiting the analysis of direct payload execution.

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.me/wix?keyword=angry+birds+space+hack
    • https://static.usrfiles.com/ugd/cbdbb6_4163ff70b0ad4e65a6cdcf699a7fea7a.pdf
    • https://static.usrfiles.com/ugd/cc15ef_bb7c796eea54487586f924aa14af3000.pdf
    • https://static.usrfiles.com/ugd/221eaa_34d59e56a35f43e08fe49215c25ba869.pdf
    • https://static.usrfiles.com/ugd/b8c837_00f6da6b9eb74805bdcb834ec91d1cc1.pdf
    • https://static.usrfiles.com/ugd/bf650e_42b153c7f2474076957db555709b9627.pdf
    • https://static.usrfiles.com/ugd/221eaa_5ef61c01dcd342948eef03290e041a05.pdf
    • https://static.usrfiles.com/ugd/4cf28d_a209b33855d943168f8b6bb4c25ac2a2.pdf
    • https://static.usrfiles.com/ugd/4b68be_e3ceb113e61944b394aa7737448c62a6.pdf
    • https://static.usrfiles.com/ugd/b222ea_5ec282a68765463a83fa235a998946d4.pdf
    • https://static.usrfiles.com/ugd/df4650_559e7693dd9f41ba8b35694bf67cd683.pdf
    • https://cdn.shopify.com/s/files/1/0435/8724/0093/files/76518660553.pdf
    • https://cdn.shopify.com/s/files/1/0429/0543/6326/files/womazoxu.pdf
    • https://cdn.shopify.com/s/files/1/0431/7495/3120/files/kafaxemasosalodogasa.pdf
    • https://cdn.shopify.com/s/files/1/0437/3318/8759/files/wurasavodofoduxu.pdf
    • https://cdn.shopify.com/s/files/1/0437/0972/6870/files/microwave_engineering_pozar_4th_edition.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/
    • https://cdn.shopify.com/s/fil

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006873.bin
4b1ef3ae7eb5c6a4b3303e837eb70e7d3cd5f3921f64080dc27bf90aa59d783e
pdf-font-stream PDF embedded font (sfnt) at offset 0x6873 5596 bytes
font_01_sfnt_off00007b7b.bin
f5240fd077f9611760899a0bcf13761e8d6ce560d48ddcb9d4057e595fa5dacf
pdf-font-stream PDF embedded font (sfnt) at offset 0x7B7B 14540 bytes