Malicious PDF — malware analysis report

Static analysis result for SHA-256 2850db9099560bfa…

MALICIOUS

PDF

44.3 KB Created: 2020-08-27 15:38:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 976fed9beb9995d8766425f439b746ba SHA-1: 49ab197ac4a309cb76d4a3b0c62a135b9211bb42 SHA-256: 2850db9099560bfa3ae8b46be314d8084e1a0d6d53973eb91cb50ea4de94b11e
150 Risk Score

Malware Insights

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

This PDF file contains numerous embedded links, with a critical heuristic identifying a link to a known malicious redirector at 'https://ttraff.club/pify?keyword=gta+5+huntley+s'. The document body, though heavily obfuscated, contains text that appears to be a lure related to 'Gta 5 huntley s', likely intended to entice users to click the malicious link. The presence of a large number of external PDF links also suggests a link farm or SEO poisoning attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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.
  • 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.club/pify?keyword=gta+5+huntley+s
    • http://momejowo.eastlakecongregational.org/uploads/1/3/1/6/131637836/nawomiwe_xabilusiz_wegedewisazama.pdf
    • http://ranaxug.talks.ccsdtitle1.org/uploads/1/3/1/4/131438013/tezepad.pdf
    • http://dulob.s-townhs.org/uploads/1/3/2/3/132303072/wivitosipadijomiru.pdf
    • https://cdn.shopify.com/s/files/1/0436/9963/4330/files/software_baidu_pc_faster_terbaru_free.pdf
    • https://cdn.shopify.com/s/files/1/0433/4567/4389/files/tha_carter_3_deluxe_edition_download.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/jenodilibaxu.pdf
    • https://cdn.shopify.com/s/files/1/0430/0800/0163/files/auggie_and_me_online_free.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/rikujolam.pdf
    • https://cdn.shopify.com/s/files/1/0431/5165/5076/files/your_game_booster_pro_2018_apk.pdf
    • https://cdn.shopify.com/s/files/1/0431/0358/4409/files/58446909949.pdf
    • https://cdn.shopify.com/s/files/1/0435/8651/9203/files/9970842290.pdf
    • https://cdn.shopify.com/s/files/1/0434/6911/1449/files/nawekarofi.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xigidewepiwunabifaw.pdf
    • https://cdn.shopify.com/s/files/1/0437/2060/5848/files/tefanuvowemava.pdf
    • https://cdn.shopify.com/s/files/1/0428/7230/7875/files/microsoft_office_2016_free_crack_file.pdf
    • https://cdn.shopify.com/s/files/1/0433/3967/7861/files/16372762866.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_off00006590.bin
7a05683d2d3f8cd35f815faeaae2b153913a8d5452a72ca93692694feb291388
pdf-font-stream PDF embedded font (sfnt) at offset 0x6590 4936 bytes
font_01_sfnt_off00007668.bin
da52cf5ca1fb026cff27191073ab204a3bc86a547947877dead1c1a88f648279
pdf-font-stream PDF embedded font (sfnt) at offset 0x7668 15156 bytes