PDF malware analysis — malicious · c1637a77e4677e84

MALICIOUS

PDF

36.3 KB Created: 2020-10-04 11:22:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26

MD5: d1bc01167cab42098f1ecd711d19e1a9 SHA-1: 3917f0c359da139dd084fdd0d4655ce18c7df56b SHA-256: c1637a77e4677e84110ed1bf632de605635786d4b0b234e6902e37eab6b88052

94 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a deceptive message mimicking a security warning to trick users into clicking a malicious link. The primary link, 'https://ttraff.cc/pify?keyword=application+blocked+by+java+security+windows+10', is flagged as a malicious redirector. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest an attempt to download a second-stage payload, aligning with common phishing and malware delivery techniques.

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.cc/pify?keyword=application+blocked+by+java+security+windows+10 In PDF document text
- http://files.woodsideschool.org/uploads/1/3/0/7/130776821/xumawesujiwax-bubuxarojesom-werigelixoda.pdfIn PDF document text
- http://jadal.smokeyfiresidecreations.com/uploads/1/3/0/7/130738914/vorirovibu.pdfIn PDF document text
- http://sufowif.gardentherapybliss.ca/uploads/1/3/1/4/131407552/vuzekafa.pdfIn PDF document text
- http://pixox.plan-itgreen.com/uploads/1/3/1/4/131438684/paparotu.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/6995/4456/files/xesevi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0460/1967/4271/files/suweraxoralom.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3121/5774/files/chromag_wideangle_frame_2020.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/2a58ec7c-bfbf-45a5-bb76-74885b6e4b67/24265612385.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/3b6956ac-c51b-4f19-b6d4-b657f69e260d/61221133785.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 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00004e74.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x4E74	5784 bytes
SHA-256: `c0bc3fa370c0b1616b1b3d286248a2a5753eaac6fc4b3d82cb4ebabdb0c3f762`
`font_01_sfnt_off00006251.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6251	10116 bytes
SHA-256: `3e2ee558856377844f448314281893317ca273ac32c3b0dea7a96e133fadd03d`

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