Malicious PDF — malware analysis report

Static analysis result for SHA-256 015786f22d634195…

MALICIOUS

PDF

35.6 KB Created: 2020-08-23 15:44:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3667d3338ae479a3e650dfbb2b504035 SHA-1: 02163c4b3a6a84cb8be0f9bd6ea3ea297991855d SHA-256: 015786f22d634195c20d05d3a2e16ae74f518177c4907e901cb410edfd0c50f9
154 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic firing for a malicious redirector. The document body, though partially corrupted, contains text suggesting a lure for a 'Concise amharic dictionary pdf'. The primary malicious IOC is the redirector URL, which likely leads to further malicious content or exploitation.

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=concise+amharic+dictionary+pdf
    • http://files.naturalbalancetherapies.org/uploads/1/3/1/4/131406449/mevokejedixixar-ligomagase.pdf
    • http://files.kellylyonns.com/uploads/1/3/1/4/131454620/222325.pdf
    • http://files.sataunton.org/uploads/1/3/0/9/130969545/ecbcc9162a6c2.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://cdn.shopify.com/s/files/1/0434/0681/9493/files/8586494921.pdf
    • https://cdn.shopify.com/s/files/1/0450/5174/0310/files/nbi_clearance_application_form_download.pdf
    • https://cdn.shopify.com/s/files/1/0429/8558/6849/files/modern_approaches_to_the_study_of_political_science.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/82973104521.pdf
    • https://cdn.shopify.com/s/files/1/0447/2363/4330/files/speaking_english_like_an_american.pdf
    • https://cdn.shopify.com/s/files/1/0437/4393/6673/files/36826305797.pdf
    • https://cdn.shopify.com/s/files/1/0439/6960/9886/files/13057934434.pdf
    • https://cdn.shopify.com/s/files/1/0429/2873/4367/files/wutifi.pdf
    • https://cdn.shopify.com/s/files/1/0438/1740/2530/files/bacteriologia_medica_ana_maria_castro.pdf
    • https://cdn.shopify.com/s/files/1/0435/2560/3488/files/kuzarilapitesunifemax.pdf
    • https://cdn.shopify.com/s/files/1/0434/1720/6946/files/95454832343.pdf
    • https://cdn.shopify.com/s/files/1/0434/7009/4501/files/dudomig.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_off00004320.bin
0df9ef96a1aac2cecf0baf2e51901f6744e67a8bcdb5021be71cf6f99e14b812		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4320 5276 bytes
font_01_sfnt_off000054e0.bin
737815aa9fad4287839fa7937a18f6796ca0eae2efd358bb72d9c146a1a44fdb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x54E0 9004 bytes
font_02_sfnt_off00007388.bin
0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7388 4324 bytes

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