Malicious PDF — malware analysis report

Static analysis result for SHA-256 d0b051af7a6855b9…

MALICIOUS

PDF

62.5 KB Created: 2020-08-01 22:29:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0f59750e3be52c2b47bc8da6a1c37cdc SHA-1: aa0d721816e9b6e2b3f842569c3ca1d5e032e038 SHA-256: d0b051af7a6855b90bea9216db93243c7a0e7454cd022c6b8f81413c2829b670
152 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with a critical heuristic firing indicating it's a link farm pointing to known malicious redirector infrastructure. The primary redirector URL is `https://ttraff.cc/pify?keyword=wii+ware+game`. The ML classifier also strongly flagged this PDF as malicious. The document body appears to be heavily obfuscated or corrupted, but the presence of the redirector URL suggests a phishing or malware distribution attempt.

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/pify?keyword=wii+ware+game
    • http://files.medaryville.net/uploads/1/3/1/8/131856232/fisibesirejozazo.pdf
    • http://files.teakslockservice.com/uploads/1/3/0/7/130739826/d0a002d9d55ac.pdf
    • http://files.shopbelieveboutique.com/uploads/1/3/0/8/130814169/kajesakese.pdf
    • http://files.justanhrgirl.com/uploads/1/3/0/7/130774993/vemawe-giretinaduzu.pdf
    • https://cdn.shopify.com/s/files/1/0433/5039/2984/files/27925473959.pdf
    • https://cdn.shopify.com/s/files/1/0436/0264/1059/files/kapelewapifisafawigotutiw.pdf
    • https://cdn.shopify.com/s/files/1/0427/6604/1244/files/53424602695.pdf
    • https://cdn.shopify.com/s/files/1/0433/9305/6933/files/14540222454.pdf
    • https://cdn.shopify.com/s/files/1/0436/0352/5794/files/46956738353.pdf
    • https://cdn.shopify.com/s/files/1/0432/8564/3420/files/gre_word_list_with_pictures.pdf
    • https://cdn.shopify.com/s/files/1/0438/0724/4450/files/sikiwoxizaje.pdf
    • https://cdn.shopify.com/s/files/1/0433/0605/7883/files/248151310.pdf
    • https://cdn.shopify.com/s/files/1/0432/3573/7764/files/xufenelideduwoxaxig.pdf
    • https://cdn.shopify.com/s/files/1/0432/0677/0849/files/fibowerefi.pdf
    • https://cdn.shopify.com/s/files/1/0440/9176/8984/files/drake_to_much_mp3.pdf
    • https://cdn.shopify.com/s/files/1/0434/9755/4084/files/zedagigimixenowamuw.pdf
    • https://cdn.shopify.com/s/files/1/0437/6877/4814/files/32396770857.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000a7fd.bin
6509a4695e2a5a36edd9aeccd3084be772ce22af7a19c1ce7772333d5e8eb260		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA7FD 4392 bytes
font_01_sfnt_off0000b6ea.bin
5be5da4c0fd3db9aa62767769c7088ee9236ef51c3ec69f3b494a06a4ffc0bc9		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB6EA 12584 bytes
font_02_sfnt_off0000dee7.bin
b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDEE7 4324 bytes

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