PDF malware analysis — malicious · 1f037a09ab32f4bb

MALICIOUS

PDF

46.0 KB Created: 2020-09-17 09:55:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 75dfdc42db06607158ccaf449c773523 SHA-1: b270022d56a732fb1026a044e19f180c39a02854 SHA-256: 1f037a09ab32f4bb5dc996e9693dcbca79c4c41f150fed18f192f406ede20733

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.001 Malicious Link T1059.001 PowerShell

The PDF file contains a large number of embedded links, many of which point to external PDF files. One of the primary links, 'https://ttraff.me/wix?keyword=act+4+study+guide+the+crucible', is identified as a malicious redirector. The document body, though heavily obfuscated, contains this URL, suggesting the intent is to lure the user into clicking the malicious link. The presence of numerous other PDF links indicates a potential SEO poisoning or link farm tactic to distribute malicious content.

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.
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.
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.me/wix?keyword=act+4+study+guide+the+crucible
- http://gadizip.davidhamishwill.com/uploads/1/3/1/3/131383914/weromebadeson.pdf
- http://files.mgle-germanschool.org/uploads/1/3/2/8/132814898/4323125.pdf
- http://files.californialightingconcepts.com/uploads/1/3/0/7/130740568/lawemugevix.pdf
- http://files.toniandgarry.com/uploads/1/3/1/6/131606677/wewiranumosi_kamaze_zakitejamepir_dofugawofovofe.pdf
- http://files.lhasaapsocanada.com/uploads/1/3/1/8/131871593/vidovozabasinekodaju.pdf
- http://jegoni.nltcassville.org/uploads/1/3/0/8/130814088/girozexug.pdf
- https://bc29a76b-27ac-4580-8345-bf0342d454de.filesusr.com/ugd/479fa9_7ea9cf280e2b4b31a7e28f86c5ea8026.pdf?index=true
- https://2ecd4c26-14b9-4998-b74f-69bc37f5c6e2.filesusr.com/ugd/01bc73_055d01e6549741edb4d36091107dc038.pdf?index=true
- https://0f206a51-f1dd-4855-8a6c-8a160f40f72b.filesusr.com/ugd/f2c1dc_cd62bc2829a54a70866c014e5201b250.pdf?index=true
- https://f8667bbe-7968-4ea2-83ae-d2bb5329f5ac.filesusr.com/ugd/834936_20b1eed964d84013863db4185a71118a.pdf?index=true
- https://b7f97063-1994-4e7a-9f30-ed75cdafd9b1.filesusr.com/ugd/610d21_8c296b8fe9de4c9c8e37ebff3747576c.pdf?index=true
- https://7a496d75-ed34-4bc8-b450-f4fe9da14328.filesusr.com/ugd/227d0f_13e84df818b249ccb370e18b2e0f667a.pdf?index=true
- https://38ba3e7b-a060-48a0-bdbf-76d4eddcdddc.filesusr.com/ugd/38eac1_9268f50edb6040fc9a7b4a212ffc6911.pdf?index=true
- 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.

Filename	Kind	Source	Size
`font_00_sfnt_off00006da8.bin` `5cf6cde59753c979fc3657d576f837008dbd825574e264c7d1943c1171f9ff74`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6DA8	5312 bytes
`font_01_sfnt_off00007fc3.bin` `ff2cafc494e966b575ff191ea595027055d3a8b02151553bf22805b79c06b45a`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7FC3	13708 bytes

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