Malicious PDF — malware analysis report

Static analysis result for SHA-256 896f6556d58d34b1…

MALICIOUS

PDF

60.7 KB Created: 2020-08-12 12:12:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 081bb26a345944e2b21451289d55201e SHA-1: abec080c13034d785bc5a01c6b3a84ceec08dc1d SHA-256: 896f6556d58d34b13066f0e4dcdae4234306cedd66b73d3b26d2f631170e65a9
152 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, forming a link farm designed to direct users to external resources. One of these links, 'https://ttraff.com/pify?keyword=ugly+kid+joe+everything+about+you+tab+pdf', is identified as a malicious redirector. The document body, though heavily obfuscated, also contains this URL and other links hosted on Shopify, suggesting a lure to a malicious site disguised as a document. No scripts were extracted, and the primary malicious activity is link redirection.

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/pify?keyword=ugly+kid+joe+everything+about+you+tab+pdf
    • http://files.auzpexbeauty.com/uploads/1/3/2/6/132680796/2759134.pdf
    • http://bazedal.hillviewdartmouth.co.uk/uploads/1/3/0/9/130969206/ea81dbba33.pdf
    • http://files.apologeticsinthechurch.com/uploads/1/3/1/4/131406659/xobivixisuretilak.pdf
    • http://files.girlwithmanyjobs.com/uploads/1/3/1/0/131070030/vojodaxowisavenabek.pdf
    • http://lewumuv.aerosportoutfitter.com/uploads/1/3/1/1/131164250/2adce598fa31.pdf
    • https://cdn.shopify.com/s/files/1/0431/9277/8901/files/zaxuxezuxonumof.pdf
    • https://cdn.shopify.com/s/files/1/0431/0263/4148/files/sql_interview_questions.pdf
    • https://cdn.shopify.com/s/files/1/0434/4568/2328/files/nurikozatafef.pdf
    • https://cdn.shopify.com/s/files/1/0431/4152/9762/files/weposixenifulenawojapujid.pdf
    • https://cdn.shopify.com/s/files/1/0434/6635/8934/files/pugufujetipigofo.pdf
    • https://cdn.shopify.com/s/files/1/0433/2286/7880/files/vomasapegaxawod.pdf
    • https://cdn.shopify.com/s/files/1/0429/6087/9772/files/80157642939.pdf
    • https://cdn.shopify.com/s/files/1/0438/3821/0205/files/zibezemorotox.pdf
    • https://cdn.shopify.com/s/files/1/0434/4473/2065/files/ndlea_shortlisted_candidate_2020.pdf
    • https://cdn.shopify.com/s/files/1/0431/5398/1589/files/493643444.pdf
    • https://cdn.shopify.com/s/files/1/0429/3161/7945/files/butter_bob_briggs_wikipedia.pdf
    • https://cdn.shopify.com/s/files/1/0428/6241/1935/files/peluwudawovaseto.pdf
    • https://cdn.shopify.com/s/files/1/0436/5297/2697/files/68189743292.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007b27.bin
a0e53c66f21cad131c36941f10852988d2694a63e5e0d5c069f5f0d79e5de9aa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7B27 5440 bytes
font_01_sfnt_off00008da5.bin
3d3eb51ee985f633065d7596ab0898d1c425011114f20ea9a6fda9e9252573ba		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8DA5 16204 bytes
font_02_sfnt_off0000bffa.bin
532315dfdc59b350d447ad91845dd8cc72a836e684f536ab9a4305dc5b53fb8e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBFFA 16204 bytes
font_03_sfnt_off0000d52a.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD52A 4324 bytes

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