Malicious PDF — malware analysis report

Static analysis result for SHA-256 24a2deae67873b10…

MALICIOUS

PDF

46.0 KB Created: 2020-08-11 07:57:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e3cb4c6f35df436a87d7cc667b559093 SHA-1: 6046dacfb071e235f8363b48aedef108c3fae3f4 SHA-256: 24a2deae67873b10b0d110a2d10d1279f02c588b52021466bf9421cd2323dc88
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links, many of which point to Shopify domains, but one critical link directs to a known malicious redirector. The document body text and embedded links suggest a lure for "belt conveyor pdf download" to trick users into clicking the malicious URL. The ML classifier also strongly indicated maliciousness.

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=belt+conveyor+pdf+download
    • http://gibojo.rivergrilleeaston.com/uploads/1/3/2/6/132695492/jidilejosilowaz.pdf
    • http://renilu.sydniessweetlife.com/uploads/1/3/1/1/131164250/639989fc334.pdf
    • http://files.westernpneumatics.com/uploads/1/3/2/6/132681992/luzosowafesututu.pdf
    • http://riwolid.laidprettyboutique.com/uploads/1/3/1/4/131452836/mexutodig.pdf
    • http://files.scripturesdramatized.com/uploads/1/3/1/4/131438142/gijumivaw.pdf
    • https://cdn.shopify.com/s/files/1/0432/3685/1874/files/jiletav.pdf
    • https://cdn.shopify.com/s/files/1/0431/4251/2797/files/hillsborough_county_electronic_report_cards.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/66689816557.pdf
    • https://cdn.shopify.com/s/files/1/0437/7142/9015/files/microbiology_laboratory_textbook.pdf
    • https://cdn.shopify.com/s/files/1/0435/2563/6250/files/din_en_iso_9001_revision_2020.pdf
    • https://cdn.shopify.com/s/files/1/0437/0006/0310/files/loser_by_jerry_spinelli.pdf
    • https://cdn.shopify.com/s/files/1/0431/5722/5638/files/mario_theme_song_sheet_music.pdf
    • https://cdn.shopify.com/s/files/1/0428/4016/2460/files/46313580513.pdf
    • https://cdn.shopify.com/s/files/1/0441/2129/2952/files/magic_of_incarnum_3._5.pdf
    • https://cdn.shopify.com/s/files/1/0445/8535/3380/files/adobe_reader_8._1_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0431/6761/3087/files/nabogifakupepubedek.pdf
    • https://cdn.shopify.com/s/files/1/0432/0192/1184/files/50365846683.pdf
    • https://cdn.shopify.com/s/files/1/0428/8937/9993/files/hp_omen_control.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000057c4.bin
2fe4c3651f53e709c30a5cdb689e98d24a63bba088bfe6655dbd33f380181ae2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x57C4 5716 bytes
font_01_sfnt_off00006bbf.bin
be62c3af0bcedc0f2e8e3998dd6f876f21109648e695171123ba22e136255ced		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6BBF 5276 bytes
font_02_sfnt_off00007dd8.bin
26f481ea33b1231a1476b03dd8b122a065109f3209bd38ad37f5fca5e653e61c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7DD8 14580 bytes

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