Malicious PDF — malware analysis report

Static analysis result for SHA-256 47f3ed63fe50c0b0…

MALICIOUS

PDF

60.5 KB Created: 2020-08-31 02:12:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d914155c48bc368e7fd4e426b5d8b8ec SHA-1: 7c972f54099a629df68ec27025252bf98813b712 SHA-256: 47f3ed63fe50c0b0aa252969d4d576e9aaca350890504f1216c7863b8eada960
152 Risk Score

Malware Insights

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

The PDF was flagged as malicious due to embedded links pointing to known malicious redirector infrastructure. The primary malicious URL identified is https://ttraff.cc/wix?keyword=listas+de+acuerdos+tribunales+agrarios. The document body contains garbled text but includes the same URL, suggesting it is the intended lure. The presence of numerous external PDF links also indicates a link farm, a common tactic for SEO poisoning 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=listas+de+acuerdos+tribunales+agrarios
    • https://static.usrfiles.com/ugd/b8c837_e340b4e0341b4c08a2f918c0e687e228.pdf
    • https://static.usrfiles.com/ugd/b8c837_32af411ec13b4b5586ca4b5e2a8b5380.pdf
    • https://static.usrfiles.com/ugd/b8c837_a11de11dcac94997b71c16250d4e173c.pdf
    • https://static.usrfiles.com/ugd/02beb7_3f9d7b391f0b42819e90da5e25a884a6.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/86477918810.pdf
    • https://static.usrfiles.com/ugd/ca9b0a_5ebe6ba52f314af098f4023e74556c0f.pdf
    • https://static.usrfiles.com/ugd/6f58fb_723a33dfd67241b79c4ad5669c64ea83.pdf
    • https://static.usrfiles.com/ugd/b8c837_bdc34efc87aa42328f72b61516303866.pdf
    • https://cdn.shopify.com/s/files/1/0438/4591/0678/files/weririsubok.pdf
    • https://cdn.shopify.com/s/files/1/0459/9942/3647/files/aadhaar_enrollment_form.pdf
    • https://cdn.shopify.com/s/files/1/0431/4952/5156/files/vewimupu.pdf
    • https://cdn.shopify.com/s/files/1/0460/3310/9156/files/nalogulopidide.pdf
    • https://cdn.shopify.com/s/files/1/0428/1624/1831/files/html5_canvas_tutorial.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008b8d.bin
f09d4c225250d7a1eb9e447dbaab50ab9d243104f10001372e4c55119d0a9daa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8B8D 5068 bytes
font_01_sfnt_off00009cc2.bin
5f14f80f414e7638303a8f9e95efd66b73daaf8f0f9b2b6fff548111d7b75545		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9CC2 10796 bytes
font_02_sfnt_off0000c012.bin
ee989ca3c01167a929a766065888a0399def1744bbc45a0f6c3b11f69e640321		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC012 16076 bytes
font_03_sfnt_off0000d4bc.bin
1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD4BC 4324 bytes

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