PDF malware analysis — malicious · f3460f59bd09320c

MALICIOUS

PDF

50.4 KB Created: 2020-10-15 12:31:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22

MD5: 51ce6040a065188b8ea9e9f6161dad44 SHA-1: f7e728b2472649b2a3dedede9cafe36a0bb92102 SHA-256: f3460f59bd09320ccf9fe8836c6fe4027f213c9dd01e2af0d2d88616018ccd57

124 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document contains numerous embedded links, including one identified as a malicious redirector. The document body text and extracted URLs suggest a lure for software downloads, likely leading to malware. The ML classifier strongly indicated maliciousness, and the presence of a redirector URL points to a phishing or malware distribution attempt.

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 is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM

Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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/123?keyword=kmplayer+pro+apk+codec In PDF document text
- https://site-1039140.mozfiles.com/files/1039140/rawamuli.pdfIn PDF document text
- https://site-1037224.mozfiles.com/files/1037224/84514126009.pdfIn PDF document text
- https://site-1043366.mozfiles.com/files/1043366/scanner_app_download_for_android_phone.pdfIn PDF document text
- https://site-1040050.mozfiles.com/files/1040050/47952472831.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366377/normal_5f8722ecc99e4.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4365607/normal_5f86fa49d5bc1.pdfIn PDF document text
- https://site-1036691.mozfiles.com/files/1036691/5798774488.pdfIn PDF document text
- https://site-1036628.mozfiles.com/files/1036628/xepinezukugajijigofaramuj.pdfIn PDF document text
- https://site-1041688.mozfiles.com/files/1041688/17669321521.pdfIn PDF document text
- https://site-1040665.mozfiles.com/files/1040665/tuligubikagisiwavinid.pdfIn PDF document text
- https://site-1039199.mozfiles.com/files/1039199/61227798483.pdfIn PDF document text
- https://site-1038952.mozfiles.com/files/1038952/51600053243.pdfIn PDF document text
- https://site-1043405.mozfiles.com/files/1043405/17074059240.pdfIn PDF document text
- https://site-1042922.mozfiles.com/files/1042922/21764627184.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://cdn.shopify.com/s/files/1/0440/4409/1557/files/kopigaxavisepegutezuza.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0498/7958/0830/files/rebamegutor.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/8217/8979/files/jefidalovagemotigo.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/27a518aa-7e75-426f-9eb1-47feb5729a91/16667349008.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/497b1488-b822-475a-84ce-5e2d71f23f29/runumoli.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/9cc170dd-9588-4581-9f37-8be1876f442b/gomanipux.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
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off000066c0.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x66C0	4732 bytes
SHA-256: `4dc702a5fd8d8c7455333b404616cc75230398e80dc01e6ded5e88e54ad2a128`
`font_01_sfnt_off000076d1.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x76D1	9968 bytes
SHA-256: `25ae6b0b0d8f169ba546beb86292f839c8d7adfd58d3781af720c7f08bcfb26e`
`font_02_sfnt_off00009922.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9922	16060 bytes
SHA-256: `bb4620ae2308066493f479cb0495314a41e91f5b0bfb2a754d9bad2ef34af03d`
`font_03_sfnt_off0000adb8.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xADB8	4324 bytes
SHA-256: `a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f`

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