Malicious PDF — malware analysis report

Static analysis result for SHA-256 5e08b4915519f803…

MALICIOUS

PDF

44.0 KB Created: 2020-08-24 23:22:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5f681d1bd0579c3dff6cc601c08cd49b SHA-1: efd6058cd40438ebcfb71bf4cea8ba4f26e36c39 SHA-256: 5e08b4915519f8038d93e40c407bc6d317a534ad0ad0e8f5ad2721c767309111
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1204.002 Malicious Link

The PDF contains a lure for a "Chrome browser for windows 7" which is associated with a malicious redirector link. The heuristic 'SE_ADVANCE_FEE_SCAM_LURE' indicates the document's content is designed to trick users into a scam, likely by leading them to malicious infrastructure via the embedded links. The ML classifier strongly supports the malicious nature of the file.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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=chrome+browser++for+windows+7
    • http://gowefib.thorsonpto.org/uploads/1/3/2/6/132696067/9dc36ecc91.pdf
    • http://files.mrpowellscience.com/uploads/1/3/2/7/132740614/5739026.pdf
    • http://files.rosekyungwonkim.com/uploads/1/3/1/4/131453555/0c4f872bcd.pdf
    • http://guweguxo.milbur.org/uploads/1/3/1/4/131409508/wiwapuporisan.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0431/8288/2980/files/blood_types_and_diet.pdf
    • https://cdn.shopify.com/s/files/1/0432/1860/0095/files/deborah_harkness_all_souls_trilogy_free.pdf
    • https://cdn.shopify.com/s/files/1/0431/2236/0481/files/adrenalina_y_noradrenalina.pdf
    • https://cdn.shopify.com/s/files/1/0436/4946/6526/files/characteristics_of_life_lab_worksheet.pdf
    • https://cdn.shopify.com/s/files/1/0440/8265/9493/files/98738374764.pdf
    • https://cdn.shopify.com/s/files/1/0433/9128/7461/files/android_command_line_tools.pdf
    • https://cdn.shopify.com/s/files/1/0438/5452/8677/files/acta_constitutiva_de_una_asociacion_civil_en_mexico.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mowojemabedeju.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000692a.bin
fc647a1216f0dd71623337da28d5da266a1acacce1617c9a8090cdecb17aa78f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x692A 5124 bytes
font_01_sfnt_off00007a8c.bin
4432d4bb12254853d0abddeddc841063712955239f7d626c381ea99fa3c01da1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7A8C 12872 bytes

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