Malicious PDF — malware analysis report

Static analysis result for SHA-256 61f7183a4e989e9d…

MALICIOUS

PDF

61.2 KB Created: 2020-08-31 09:23:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e63dff2c51485f26a831cb42620e4baa SHA-1: 4d5c3a20f1c54c996dfd76ee108ffd5762bda2c6 SHA-256: 61f7183a4e989e9d6796d36158a110012396c216c47586ca62b00199a223ee66
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains a large number of embedded links, many of which point to a link farm designed to manipulate search engine results. One prominent URL, 'https://ttraff.com/wix?keyword=trails+in+the+sky+sc+import+save', is flagged as a malicious redirector. This suggests the document's primary purpose is to direct users to malicious infrastructure, likely for further exploitation or phishing.

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/wix?keyword=trails+in+the+sky+sc+import+save
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://static.usrfiles.com/ugd/b8c837_9dc96796af0d4b2895c31bd864571d53.pdf
    • https://static.usrfiles.com/ugd/fd3290_8c7a833cf5964a7ebe788119bac50f98.pdf
    • https://static.usrfiles.com/ugd/a4e402_fbd7a8ccc9f54ab7b3560fc8eda7b993.pdf
    • https://static.usrfiles.com/ugd/df4650_22146cfd0354462ea99dbd635fc9e4f7.pdf
    • https://cdn.shopify.com/s/files/1/0434/1871/4264/files/84408916657.pdf
    • https://cdn.shopify.com/s/files/1/0439/0027/2792/files/entrepreneurship_development_agrimoon.pdf
    • https://cdn.shopify.com/s/files/1/0436/5529/9237/files/balance_of_payment_of_pakistan.pdf
    • https://static.usrfiles.com/ugd/c0b427_60f02813c817493295689e340891b668.pdf
    • https://static.usrfiles.com/ugd/55f640_40eab0ba83094dc1bf378331f8b0319c.pdf
    • https://static.usrfiles.com/ugd/253000_49f59db4fbc14fada9a34cd5966162a2.pdf
    • https://static.usrfiles.com/ugd/b972d5_7c2022f747f24ecf847b61d9c3f8aac3.pdf
    • https://static.usrfiles.com/ugd/aff7ca_2446671dd9ee45579c66d4d18223b28f.pdf
    • https://cdn.shopify.com/s/files/1/0433/7205/2643/files/standar_isi_biologi_sma_kurikulum_2020.pdf
    • https://cdn.shopify.com/s/files/1/0433/9010/7815/files/adultery_paulo_coelho_download.pdf
    • https://cdn.shopify.com/s/files/1/0447/2363/4330/files/lewumujiwasomezububerode.pdf
    • https://cdn.shopify.com/s/files/1/0429/4865/7311/files/article_370_urdu.pdf
    • https://cdn.shopify.com/s/files/1/0431/8691/3439/files/please_answer_both_of_the_questions_below.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/
    • http://scripts.sil.org/OFL

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000970c.bin
217c0fae665e23429c8fff711f0681fabfdcbff178613540bd0c2674f5cc282d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x970C 4868 bytes
font_01_sfnt_off0000a7fe.bin
5a078685aeabc089848c1da1e18222d9c38f456b0ece2492ed6337ba4c3bc230		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA7FE 5348 bytes
font_02_sfnt_off0000ba04.bin
e311a7aa9ffc70afe8521f69413f2835af1a56b0447512dbea58c36577b6ed1f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBA04 14312 bytes

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