Malicious PDF — malware analysis report

Static analysis result for SHA-256 6690bd5c93c748f8…

MALICIOUS

PDF

50.3 KB Created: 2020-10-02 05:26:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: ff48bcbe7580a9def4c4ab55453d38c6 SHA-1: 2c568ad4c3dc53b1da1c0cadcadd707e88a6956b SHA-256: 6690bd5c93c748f8df34f549b52f7c5095872c79273c672d8b850d1c3364c53e
94 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing indicating it links to known malicious redirector infrastructure. The embedded URL 'https://ggtraff.ru/strik?keyword=mmr+formula+lol' is the primary indicator of malicious intent. While no scripts were explicitly extracted, the PDF structure and the presence of embedded URLs suggest an attempt to lure the user to a malicious site, likely for phishing or further malware delivery.

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://ggtraff.ru/strik?keyword=mmr+formula+lol In PDF document text
    • https://site-1040329.mozfiles.com/files/1040329/nixoramoma.pdfIn PDF document text
    • https://site-1038693.mozfiles.com/files/1038693/xiliperovaregugivodiwij.pdfIn PDF document text
    • https://site-1036760.mozfiles.com/files/1036760/rulijuramomije.pdfIn PDF document text
    • http://files.liquidsunshinedesigns.net/uploads/1/3/1/6/131606644/6427307.pdfIn PDF document text
    • http://wirejipev.rjgehringer.com/uploads/1/3/1/0/131070001/zodozuzet_xejovetib_bifozobageso_jevokosibo.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/f510b397-729b-4924-81a2-fbab2cbfc9f0/pawoporesedun.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b081ed39-3423-4054-9269-de4973f2be7e/zufavupomakubivub.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/91edb8cf-f9b6-4d4d-9737-5a5f252be155/ruwikofebujovoxigozupuset.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d73b86c4-c481-410f-8f14-52769d7091d7/dagixuxo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/60689523-ec87-4801-b66f-4136f26f2bfb/fefuvovozokol.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0fb38b5f-3766-4dff-a6ea-d35719b561a0/jigawubomuxaxanifomi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b8b6dca5-317d-429c-87ff-9ad566fa449c/zofoladevitulipavas.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_off00006cce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CCE 4272 bytes
SHA-256: b9ecc421129b072e5d2fa223e430596078eb65b67108588de99aac5f34d757ab
font_01_sfnt_off00007b42.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B42 15400 bytes
SHA-256: 5dd729755d3c0cfa731449a7193a2f1c78a4c654895b335c483c60553acaaee7
font_02_sfnt_off0000ac25.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAC25 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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