Malicious PDF — malware analysis report

Static analysis result for SHA-256 802acd26f05961f2…

MALICIOUS

PDF

46.3 KB Created: 2020-08-08 21:33:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ea7b4391fb0a82a20027f4625ff06ec9 SHA-1: 1a6b682b6190c01c6215ce42f20bdc3d0d1c7e63 SHA-256: 802acd26f05961f2f8ffb0f06199e89f15eeb61fed21ac139168c975c934577a
154 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, also contains the URL 'https://ttraff.cc/pify?keyword=algorithme+de+tri+shell+pdf', suggesting a lure to download further malicious content. The ML classifier strongly indicated maliciousness, and the presence of a link farm further supports a malicious intent to drive traffic to potentially harmful sites.

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=algorithme+de+tri+shell+pdf
    • http://files.darajamesdesigns.com/uploads/1/3/0/7/130775916/salurisesizoru.pdf
    • http://files.doorwaytodignityabuserecovery.com/uploads/1/3/1/4/131409017/buwifolukupodofivo.pdf
    • http://jadadezab.jdprestaurants.com/uploads/1/3/2/6/132695663/pedan_dinake_tinevuvetokel.pdf
    • http://files.gtbrabecgriefrecovery.com/uploads/1/3/1/3/131384660/zasewatusik.pdf
    • https://cdn.shopify.com/s/files/1/0437/1821/3797/files/52934415263.pdf
    • https://cdn.shopify.com/s/files/1/0429/1664/2975/files/xomukivozaximijugidixirak.pdf
    • https://cdn.shopify.com/s/files/1/0427/4988/6620/files/ielts_writing_task_2_academic_vocabulary.pdf
    • https://cdn.shopify.com/s/files/1/0431/6508/9941/files/hook_to_load_checkout_scripts.pdf
    • https://cdn.shopify.com/s/files/1/0431/6073/1803/files/zoxidonasukuz.pdf
    • https://cdn.shopify.com/s/files/1/0432/9180/3801/files/the_tragedy_of_cambodian_history.pdf
    • https://cdn.shopify.com/s/files/1/0431/6381/1997/files/towunoxu.pdf
    • https://cdn.shopify.com/s/files/1/0437/6995/4456/files/29885745632.pdf
    • https://cdn.shopify.com/s/files/1/0429/5658/7174/files/system_dynamics_an_introduction_rowell.pdf
    • https://cdn.shopify.com/s/files/1/0427/7318/4678/files/32021144440.pdf
    • https://cdn.shopify.com/s/files/1/0438/3608/0288/files/70113527093.pdf
    • https://cdn.shopify.com/s/files/1/0433/1238/2117/files/ranorosita.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_off00006c7e.bin
cc29443ac4afbd1fc9e569535d8204c02ce92902a5578e23f728846cc716cc45		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6C7E 5232 bytes
font_01_sfnt_off00007e23.bin
90a247f11867e50739a534b797a8002e91d848048ce9893a9bd2839e477ffab7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7E23 14692 bytes

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