Malicious PDF — malware analysis report

Static analysis result for SHA-256 e6e88c46f6cf6f3c…

MALICIOUS

PDF

90.9 KB Created: 2020-08-28 00:10:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c5e2200723a0412bb4b6664da02b809c SHA-1: 802b2916beb12e1da82fc3bc2999641ca350827a SHA-256: e6e88c46f6cf6f3c091bb8a6f2cd237e8a4073954d126e5e9d79075e123d60b9
152 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to Shopify domains, but one critical link redirects to a known malicious domain. The document body, though partially corrupted, contains text related to a popular show's subtitles and a URL that appears to be a lure. The ML classifier strongly indicated maliciousness, and the presence of a redirector link suggests a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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=we+got+married+joonmi+ep+22+eng+sub
    • http://files.pennyspersonaltouch.com/uploads/1/3/1/3/131398204/wafepaxisora-zonula-nusibizekej.pdf
    • http://pubanus.ostendmarineservices.com/uploads/1/3/2/7/132712072/a3b9d378a3a3b.pdf
    • http://xazidelug.preppantherplace.com/uploads/1/3/2/3/132302868/1542293.pdf
    • http://riwabepi.timsbikeshop.com/uploads/1/3/0/8/130814526/f8f592e527e066.pdf
    • https://cdn.shopify.com/s/files/1/0432/1555/2672/files/82737356508.pdf
    • https://cdn.shopify.com/s/files/1/0428/8475/9711/files/downloading_github_files_linux.pdf
    • https://cdn.shopify.com/s/files/1/0429/9682/6273/files/67790807977.pdf
    • https://cdn.shopify.com/s/files/1/0433/4957/3784/files/16834078173.pdf
    • https://cdn.shopify.com/s/files/1/0444/7302/4679/files/46463153914.pdf
    • https://cdn.shopify.com/s/files/1/0433/4000/5541/files/cahier_des_charges_biocoop_2020.pdf
    • https://cdn.shopify.com/s/files/1/0431/6345/1560/files/76104864197.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/54313135065.pdf
    • https://cdn.shopify.com/s/files/1/0427/5719/3895/files/beta_blockers_dosage_forms.pdf
    • https://cdn.shopify.com/s/files/1/0437/8217/6920/files/knee_exercises_for_pain.pdf
    • https://cdn.shopify.com/s/files/1/0432/6857/1296/files/conjugate_method_spreadsheet.pdf
    • https://cdn.shopify.com/s/files/1/0431/0306/0128/files/sop_98_1.pdf
    • https://cdn.shopify.com/s/files/1/0438/0891/5613/files/protein_electrophoresis_methods_and_protocols.pdf
    • https://cdn.shopify.com/s/files/1/0438/7880/9768/files/poguzava.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 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b5db.bin
72e089928a6c42632d307b46e3a52063b16d70d4529b517b03dd50362bbdaf17		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB5DB 11804 bytes
font_01_sfnt_off0000db95.bin
b5c25dbf127fada2c5cec7a7d0769fb7cb1320a6fa6d99345721df5ae54dfd81		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDB95 5608 bytes
font_02_sfnt_off0000ee93.bin
6637ba508c7c4afa7e125c492879fd3d5144f03beada3b5427b81e4419539883		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEE93 11304 bytes
font_03_sfnt_off00010e77.bin
a36eee06fef6ce219692c4ec918276ac99413e4fd1e3666e4031624f9289d620		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10E77 1800 bytes
font_04_sfnt_off00011704.bin
999be376a8b061b9b5360f117635c675010ca0e0793064945f8c4296b41cab56		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11704 15872 bytes
font_05_sfnt_off000147ff.bin
d286e8b4d1cdafc5f769987bdccf7a6368ad55d0d3b8f98fd56bc2ae223999f8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x147FF 16076 bytes

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