Malicious PDF — malware analysis report

Static analysis result for SHA-256 1010b02e617209c5…

MALICIOUS

PDF

47.0 KB Created: 2020-08-13 21:27:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0c3b315155376e8438ee8ce2c5148931 SHA-1: 348db6db8355c1a3633c76384209a22bad097d0e SHA-256: 1010b02e617209c514551815087d07e7eef9a5509a5eef6a3a2fa60a8e53f46c
154 Risk Score

Malware Insights

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

The PDF contains numerous links, including one pointing to a known malicious redirector at 'ttraff.ru'. The document body, though heavily obfuscated, contains text suggesting a lure related to a 'video converter app for android'. The presence of embedded URLs and the ML classifier's high confidence score indicate malicious intent. The document likely serves as a phishing lure to redirect users to malicious infrastructure.

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.ru/pify?keyword=video+converter+app+for+android
    • http://files.birminghamwalkingtours.co.uk/uploads/1/3/2/7/132740873/0e29ab8316b183c.pdf
    • http://files.beverleywa.com/uploads/1/3/0/7/130775346/sirivogewimipe.pdf
    • http://files.michellewalkermusic.com/uploads/1/3/0/7/130740180/kazapejo.pdf
    • http://files.chicostate2037.org/uploads/1/3/1/3/131398088/zalibosa_muziw_genaza.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0432/3134/6856/files/mejix.pdf
    • https://cdn.shopify.com/s/files/1/0431/5506/2938/files/digepojaduzefuf.pdf
    • https://cdn.shopify.com/s/files/1/0436/9098/3574/files/asme_sec_viii_div_1_appendix_4.pdf
    • https://cdn.shopify.com/s/files/1/0436/9675/0742/files/122411783.pdf
    • https://cdn.shopify.com/s/files/1/0433/5455/4533/files/gmc_canyon_manual_transmission.pdf
    • https://cdn.shopify.com/s/files/1/0447/3815/0549/files/abortion_meaning.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/53607129813.pdf
    • https://cdn.shopify.com/s/files/1/0440/8056/2326/files/52360590133.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/63529720688.pdf
    • https://cdn.shopify.com/s/files/1/0439/0954/6136/files/real_clouds_skyrim.pdf
    • https://cdn.shopify.com/s/files/1/0435/2330/9727/files/use_of_english_words_in_sentences.pdf
    • https://cdn.shopify.com/s/files/1/0440/8400/2981/files/sisenutetefefubemu.pdf
    • https://cdn.shopify.com/s/files/1/0433/7913/0524/files/porimurununodatub.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000789a.bin
313f60146c9af0714fb62af2c426bb947602acc4f75dbc5db3017cca820385a8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x789A 4964 bytes
font_01_sfnt_off00008990.bin
a98084edd2bb1067f1430772abf96faf777bb28cdbfbc440463df0a1dc0b97fb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8990 10516 bytes

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