Malicious PDF — malware analysis report

Static analysis result for SHA-256 f31f66010c14d350…

MALICIOUS

PDF

45.3 KB Created: 2020-09-02 15:08:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f82ae137230bd6f220c21942b46de94f SHA-1: 91f76b6ddd88583350139c651becc58fbc36e217 SHA-256: f31f66010c14d350f50195d90f998e08f38b8001d92af797999386d0b09a613d
152 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector, which is a common tactic for delivering malware or phishing pages. The ML classifier strongly indicated maliciousness. The document body and embedded links suggest an attempt to disguise the malicious link as relevant content, likely for a scam or phishing campaign. No scripts were extracted, limiting the analysis of direct execution behavior.

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=south+africa+latest+house+music+2018
    • https://static.usrfiles.com/ugd/ae059d_36dba500b20b4749849171bea6208546.pdf
    • https://static.usrfiles.com/ugd/b8c837_3242fbb5d0d34c3583bbbcd71ecc4925.pdf
    • https://static.usrfiles.com/ugd/73cb9e_ad759c3a66524c98b2bd836af935c5af.pdf
    • https://static.usrfiles.com/ugd/0789d5_8e64e08e9e364d678b5f9f25f1174f85.pdf
    • https://static.usrfiles.com/ugd/b8c837_151d0201c8e44307b452a5ebf81ff981.pdf
    • https://static.usrfiles.com/ugd/0ebc1f_bf4a7cbbeb15473c87415c4c84282f39.pdf
    • https://static.usrfiles.com/ugd/625844_1b11cc7a68d844bb9f47eb683bd18521.pdf
    • https://cdn.shopify.com/s/files/1/0428/1945/3095/files/aiag_statistical_process_control_spc_2nd_edition.pdf
    • https://cdn.shopify.com/s/files/1/0437/8735/4270/files/ahriman_exile.pdf
    • https://cdn.shopify.com/s/files/1/0432/8492/2526/files/two_week_calendar_template_printable.pdf
    • https://cdn.shopify.com/s/files/1/0439/7151/0430/files/13114411688.pdf
    • https://cdn.shopify.com/s/files/1/0429/6137/1290/files/gerame.pdf
    • https://static.usrfiles.com/ugd/2f3ac6_f85eb8e023b2474e8e2d40f714358307.pdf
    • https://static.usrfiles.com/ugd/c63dba_aab17140189744689a9bd2e193fafe62.pdf
    • https://static.usrfiles.com/ugd/1be480_2cef038ae32f4967a3d59f20583b6197.pdf
    • https://static.usrfiles.com/ugd/b8c837_d46dfc5edf7f4833a626abf19ee6e198.pdf
    • https://static.usrfiles.com/ugd/b8c837_9b0baae31ebb478ab4b0076d79f0c987.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_off0000713d.bin
917dd7202433da833ab0a63c08c550aec72ea9757cd820c85cf9617af2738578		 pdf-font-stream PDF embedded font (sfnt) at offset 0x713D 5744 bytes
font_01_sfnt_off000084a3.bin
fcd4988e82c9e158a5afed919027d313d2691645055f48e8e1ea6caab21621aa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x84A3 10428 bytes

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