Malicious PDF — malware analysis report

Static analysis result for SHA-256 068da911fd4d09c1…

MALICIOUS

PDF

45.4 KB Created: 2020-09-01 23:28:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 52525e8c3cab933fd0085f60d4e26188 SHA-1: b81490a305e93a46d49b1c338dc8ad43e1aaf2e4 SHA-256: 068da911fd4d09c16d039291ea65fef5c13867862db0c77997c013f58999d799
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a link to a redirector, ttraff.com, which is associated with malicious activity. The document body, though obfuscated, contains keywords related to a game and a URL, suggesting a lure to a malicious download or phishing site. The presence of numerous external PDF links further indicates a link farm designed to distribute malicious content.

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=arma+3+zombies+and+demons+apk
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://static.usrfiles.com/ugd/fe83c3_ad6e9191fb3c4d08a277a3c0c4c20791.pdf
    • https://static.usrfiles.com/ugd/20d83a_d0a09805385e4a30b3a6f23a004257d4.pdf
    • https://static.usrfiles.com/ugd/277b62_980a53af90bb49af909a920e1a823769.pdf
    • https://static.usrfiles.com/ugd/b8c837_60f4ede20a4144f5b5a21b7249dfbbcc.pdf
    • https://static.usrfiles.com/ugd/b8bbd7_2b53f12735b74f8493da4be13d5a3ff2.pdf
    • https://static.usrfiles.com/ugd/12f4eb_45e13195d1364fe180d44bef6c3f9589.pdf
    • https://cdn.shopify.com/s/files/1/0434/5564/3813/files/28496722241.pdf
    • https://cdn.shopify.com/s/files/1/0428/7237/3411/files/nazorufitivek.pdf
    • https://cdn.shopify.com/s/files/1/0432/3000/3367/files/nemivaxoluruwixixezuxivob.pdf
    • https://cdn.shopify.com/s/files/1/0433/4131/6249/files/accomplishment_report_sample.pdf
    • https://cdn.shopify.com/s/files/1/0445/4455/7220/files/combiner_2_en_un_seul.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_off000065a9.bin
1af216b8c3bacc5104201cdfac2e297116c9214a0270d983772dc4f9092b4bd4
pdf-font-stream PDF embedded font (sfnt) at offset 0x65A9 5188 bytes
font_01_sfnt_off00007720.bin
6b3651ad194b130dff23db8b570e94895759851352a8dbea8134d2ceb538c2a8
pdf-font-stream PDF embedded font (sfnt) at offset 0x7720 10704 bytes
font_02_sfnt_off00009af7.bin
b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c
pdf-font-stream PDF embedded font (sfnt) at offset 0x9AF7 4324 bytes