Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e8b0af4c0b8e6ea…

MALICIOUS

PDF

37.7 KB Created: 2020-09-02 04:37:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: cd351c3a1b6cdb33740c3ad9ae61367b SHA-1: eed64c3193595f4103d49435a9131ecd5ccba7b3 SHA-256: 0e8b0af4c0b8e6ea85c379eef3b2867ecb09fe924e24883dbf46412f68a61126
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF was flagged as malicious due to a critical heuristic identifying it as a redirector link to known malicious infrastructure. Additionally, it contains a large number of embedded links, characteristic of SEO link farming. The embedded URL 'https://ttraff.club/wix?keyword=dance+practice+bts+fake+love+metrolagu' is a primary indicator of malicious intent, likely serving as a lure or redirector.

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.club/wix?keyword=dance+practice+bts+fake+love+metrolagu
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0428/8253/1481/files/bharat_movie_video_songs_720p.pdf
    • https://cdn.shopify.com/s/files/1/0432/0470/6464/files/vibiborajutimenedamirazaw.pdf
    • https://cdn.shopify.com/s/files/1/0432/0192/1184/files/annex_18.pdf
    • https://static.usrfiles.com/ugd/affb4a_fdbb8c5a051543cbbdf1442fb62ef6c4.pdf
    • https://cdn.shopify.com/s/files/1/0462/1588/9050/files/fifowosekafezaz.pdf
    • https://cdn.shopify.com/s/files/1/0434/2182/7222/files/retunulape.pdf
    • https://cdn.shopify.com/s/files/1/0440/1384/6693/files/74976894182.pdf
    • https://cdn.shopify.com/s/files/1/0432/8371/0117/files/farilugudaresajufo.pdf
    • https://static.usrfiles.com/ugd/cec570_bb1494991d634ba99762942f88a695cc.pdf
    • https://static.usrfiles.com/ugd/b8c837_50d717412911452c9e850a5bb5fc6dc9.pdf
    • https://static.usrfiles.com/ugd/b8c837_81a5806766dd485aabe553f12ed1508c.pdf
    • https://static.usrfiles.com/ugd/d01287_60045796c9eb42969ab9d2d1e889e1ca.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_off000047d5.bin
8f52519d2cdf9f570fd9e6b791a19ae1111ea67c4af8762997e0e6c0aeb5dec1
pdf-font-stream PDF embedded font (sfnt) at offset 0x47D5 3516 bytes
font_01_sfnt_off00005468.bin
939a79740df505b51b86d6900e58a9c1aba30d66a1857599a356e358d4a6a67d
pdf-font-stream PDF embedded font (sfnt) at offset 0x5468 5600 bytes
font_02_sfnt_off0000676c.bin
ce9d21df7542fdfdb6d347a448db8555188f30529c6c02d0f64debf270a6822b
pdf-font-stream PDF embedded font (sfnt) at offset 0x676C 10016 bytes