Malicious PDF — malware analysis report

Static analysis result for SHA-256 e397c0a233ae4741…

MALICIOUS

PDF

41.6 KB Created: 2020-08-08 08:09:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1c4d76e9eed34067ffcb850d3907712f SHA-1: 967831958fcbf4928e236186da8397821c12611e SHA-256: e397c0a233ae474165476119d00b830bbd2ffbee51e7d2297db2538816ec2aef
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 pointing to Shopify domains, but one critical link directs to a known malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/pify?keyword=sop+bed+making+pdf', which is flagged as malicious. This suggests the PDF is designed to lead users to malicious infrastructure, likely for further exploitation or credential harvesting.

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=sop+bed+making+pdf
    • http://sobin.kriyaarts.com/uploads/1/3/1/3/131379578/murod_keleki_tofewosat.pdf
    • http://files.joeraineri.com/uploads/1/3/0/8/130874587/noluduwodugok.pdf
    • http://files.twohandsrescue.org/uploads/1/3/1/4/131407877/18d68b9c.pdf
    • http://pidetodi.heathercarreiro.com/uploads/1/3/0/7/130776088/1d8c72e.pdf
    • https://cdn.shopify.com/s/files/1/0432/1977/9742/files/27177805744.pdf
    • https://cdn.shopify.com/s/files/1/0431/7839/3762/files/dungeon_master_s_handbook_5e_free.pdf
    • https://cdn.shopify.com/s/files/1/0432/4818/9603/files/392251504.pdf
    • https://cdn.shopify.com/s/files/1/0433/1097/3083/files/wimusifuvalefogovudibabov.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/sivezijikok.pdf
    • https://cdn.shopify.com/s/files/1/0438/1471/5549/files/diagnosis_angina_pectoris.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/72645751706.pdf
    • https://cdn.shopify.com/s/files/1/0434/0583/6444/files/estadistica_anderson_sweeney_williams.pdf
    • https://cdn.shopify.com/s/files/1/0438/2123/6384/files/44545489104.pdf
    • https://cdn.shopify.com/s/files/1/0435/6443/3566/files/66303074948.pdf
    • https://cdn.shopify.com/s/files/1/0431/2301/5841/files/propiedades_de_la_moringa.pdf
    • https://cdn.shopify.com/s/files/1/0438/2995/2674/files/25936178546.pdf
    • https://cdn.shopify.com/s/files/1/0446/6235/8179/files/biblia_catolica_descargar.pdf
    • https://cdn.shopify.com/s/files/1/0429/5757/0207/files/65050279759.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000065d3.bin
235db0fb1b9f09f20a0f1cc6defbc61c378e71e3176a42731eab8a53b9c67f2e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x65D3 5364 bytes
font_01_sfnt_off00007808.bin
b666c5cf79ab90786f8a4234433f6e757ff132ebd3a8afe7e457578385e2cf43		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7808 9804 bytes

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