PDF malware analysis — malicious · 1bdc6b6869823e78

MALICIOUS

PDF

47.5 KB Created: 2020-10-29 12:14:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-26

MD5: 07fc9ba9d9e688b207dbc025cad668ed SHA-1: 72e5a0956ccfe330fa192d1617f28e44306102be SHA-256: 1bdc6b6869823e78d12ede0ce38c8372d835cc9aea97494c4186889f3a04a7d5

154 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links, with one identified as a known malicious redirector. The document body, though heavily obfuscated, contains a reference to the same malicious URL. This suggests the primary goal is to redirect the user to malicious infrastructure, likely for further exploitation or phishing.

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 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.
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/aws?keyword=the+amulet+of+samarkand+review In PDF document text
- https://cdn-cms.f-static.net/uploads/4402014/normal_5f94671415d6f.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4367279/normal_5f87cfb08ce60.pdfIn PDF document text
- https://tarirubawapub.weebly.com/uploads/1/3/1/6/131606173/lupadutapa_kosub.pdfIn PDF document text
- https://xulajaxosu.weebly.com/uploads/1/3/4/3/134366267/wenazopetoxa-xezal-nunif-dasasekuna.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4374532/normal_5f8a6b44188aa.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4367650/normal_5f93452febb35.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4374013/normal_5f8efb26d7f53.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4373508/normal_5f8d27c96f366.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4393209/normal_5f96ffca614a8.pdfIn PDF document text
- https://tarirubawapub.weebly.com/uploads/1/3/1/6/131606173/fuluperomuvo.pdfIn PDF document text
- https://xojisige.weebly.com/uploads/1/3/1/6/131637148/bimumuwijujonilad.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4370778/normal_5f884409ea2fe.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4370764/normal_5f8da9808323a.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4409411/normal_5f95f85546bcf.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://uploads.strikinglycdn.com/files/53f4c425-e712-4eb1-bed9-500e8e19534a/zimawukixotezagikewigonav.pdfIn PDF document text
- https://s3.amazonaws.com/temujonuwu/sabowubujavoredudub.pdfIn PDF document text
- https://s3.amazonaws.com/mufukep/batikikarokorixuxa.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/7458e270-a495-40b8-ac4d-eb7543717e2c/lagejojezodane.pdfIn PDF document text
- https://s3.amazonaws.com/jamokaroxoj/17887732635.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/433c695a-5bc0-411a-b1ac-a778f8d6a956/72712723651.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/df079b10-38a2-45e0-b6f7-b8c3d44dd1f0/mupala.pdfIn PDF document text
- https://s3.amazonaws.com/zirojopemup/35416071543.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/d81285d6-23c6-425d-b966-06a5eef9b3fe/tous_unis_dans_l_esprit.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/cf174310-4e3f-4209-9d1d-1a5ac710efb2/saving_throws_5e_tie.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/b695ad92-19ec-4a27-b378-bb66e420d6e0/bilkent_kapsamlC4B1_burs.pdfIn PDF document text
- https://s3.amazonaws.com/kikunojulejuj/keto_diet_recipes_book_free.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/0402c44b-2f93-43d8-98ea-6230fe6d5149/wetawezar.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/291a9279-ba49-422f-9067-ad4d175daf9c/toshiba_satellite_c55d-b5160_user_manual.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_off00007454.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7454	5312 bytes
SHA-256: `6fc5483e80a3ca4099c8e80cc4e4f9955b385b947fba5e17ea1ac0a21b8aa866`
`font_01_sfnt_off0000864c.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x864C	15800 bytes
SHA-256: `fdb8730e99b64224dc9f3f436cec590eb98773855733023a85f00b4eeef16dc4`

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