Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e1604fa635677b0…

MALICIOUS

PDF

44.4 KB Created: 2020-08-13 09:18:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2b7bd590d305fbd80429a3c04affd127 SHA-1: a23ab5395b2b0b3b197f3d27dbbb28f6f6e0963f SHA-256: 0e1604fa635677b0fa436a402d0379b8ba979e46f12e94c961e505865f949df5
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a critical heuristic firing for linking to known malicious redirector infrastructure, specifically pointing to 'ttraff.com' with a keyword suggesting a lure for 'adobe pdf reader free download'. The document body also contains this URL and other links, some of which are hosted on potentially suspicious domains. The ML classifier strongly flagged this PDF as malicious, indicating a high probability of malicious intent.

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/wb?keyword=adobe%20pdf%20reader%20free%20download%20offline
    • http://jijavakif.areabrooklyn.com/uploads/1/3/0/7/130776795/lixilopi.pdf
    • http://zomap.merrillscottagecountrylocksafe.ca/uploads/1/3/1/4/131406893/578aea5c.pdf
    • http://files.liberalcoalition.com/uploads/1/3/2/6/132681342/d6ade.pdf
    • http://files.threeaineconsultancy.com/uploads/1/3/1/0/131070125/587526f65.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://cdn.shopify.com/s/files/1/0430/7641/9744/files/66293076467.pdf
    • https://cdn.shopify.com/s/files/1/0429/1916/6105/files/sekiro_black_scroll.pdf
    • https://cdn.shopify.com/s/files/1/0432/3786/7687/files/chac_mool_libro.pdf
    • https://cdn.shopify.com/s/files/1/0438/6023/0294/files/linux_add_text_to_command_line.pdf
    • https://cdn.shopify.com/s/files/1/0428/5267/9836/files/38341416169.pdf
    • https://cdn.shopify.com/s/files/1/0433/4216/8218/files/8050272034.pdf
    • https://cdn.shopify.com/s/files/1/0436/5395/5742/files/xaxulu.pdf
    • https://cdn.shopify.com/s/files/1/0433/1533/1227/files/sunufonivazapeju.pdf
    • https://cdn.shopify.com/s/files/1/0428/2214/0063/files/pafevunusipavedopase.pdf
    • https://cdn.shopify.com/s/files/1/0435/1187/3695/files/disozasubovabuvotazoke.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_off00006317.bin
b8590f20f76cfeb92d94050ef617d1ac645094ddf0ee02b3a39ab569f1d33e04		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6317 4784 bytes
font_01_sfnt_off00007362.bin
fc417ebfe8c9f904d74d3ee8b23c580233c4a88afafa9884fa437e06d942f45f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7362 10292 bytes
font_02_sfnt_off000096a3.bin
b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x96A3 4324 bytes

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