Malicious PDF — malware analysis report

Static analysis result for SHA-256 dedd24ed56bf89a8…

MALICIOUS

PDF

41.8 KB Created: 2020-11-02 22:21:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: c1c07819913b40f91fc2fb365a2de370 SHA-1: 120debaae33aeb4bbe66177f324fb3a31528c91d SHA-256: dedd24ed56bf89a8728f8b770ff954482e5e7862433acbad311036fcc2720b3c
94 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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.
  • 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/123?keyword=mobdro+premium+apk In PDF document text
    • https://cdn-cms.f-static.net/uploads/4370076/normal_5f949a16c81db.pdfIn PDF document text
    • https://tovozilulu.weebly.com/uploads/1/3/0/8/130873983/kuronozomo.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/37a80013-2bd3-48c8-957d-33fd2b855cc5/gagatololorisimubumifedik.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c3425305-ae28-4073-af1e-0240ad40fc90/dragon_ball_z_games_for_psp.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/7586/5250/files/mouse_lemur_life_cycle.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/27cf8cd7-694b-46f3-9c89-50f5eb38f4e1/xazak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0495/9843/1396/files/kumot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/4325/3152/files/pokedowewetixepakosov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3923/3960/files/specialized_enduro_comp_2020_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0499/2889/6674/files/ramen_in_microwave.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5f55bd3c-83fc-4cec-8c37-975c65a060c2/97903375410.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000059ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x59FF 4800 bytes
SHA-256: bed3501125b2606fc61bd1071ce3c2112cde4b20c1c31903e84bd7484f353f7a
font_01_sfnt_off00006a46.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A46 10060 bytes
SHA-256: 4bc515ee948194ea8a4dc9d912779b74ea5159ece81f458718ee0e4db1156ca2
font_02_sfnt_off00008cbe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8CBE 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f