PDF malware analysis — malicious · b07a3aed77b1d079

MALICIOUS

PDF

45.8 KB Created: 2020-09-17 20:57:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 0e3bd5fb8ddc742fb7c9bad705033735 SHA-1: 379844a3d9e21f5f8ac4a9b5c3123a3131636d0e SHA-256: b07a3aed77b1d0797a4101b81020b4e831659bd9e94937ca4f72b81599e268cd

128 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a malicious redirector link disguised as a "gift card" offer, which is a common lure for phishing attacks. The document body, though heavily obfuscated, contains the target URL. The PDF also hosts a large number of external links, many of which point to benign content, but the presence of the malicious redirector is a strong indicator of malicious intent. The primary malicious IOC is the redirector URL.

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.
Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON

Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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=epic+summoners+gift+card
- http://bulepo.mariamamyra.com/uploads/1/3/0/7/130739906/wizoginajalonirajano.pdf
- http://files.apbparts.com/uploads/1/3/1/4/131413148/tunatategij.pdf
- https://03987c09-2b5c-4f03-b24f-4b16585ce95d.filesusr.com/ugd/df7b34_90ab12787298400fbf1840eef183b511.pdf?index=true
- https://0e82eb6c-97d4-4a28-809f-c4c5d1fab826.filesusr.com/ugd/dec231_b49a0f6e46ba4019aa70cd7599007fac.pdf?index=true
- https://3103d7c7-cacf-4fb0-b134-24940062aa32.filesusr.com/ugd/23a6c3_c74fd26e2bf849208883d230609e5274.pdf?index=true
- https://e4760666-f80c-43cd-a634-8f8430c58e5f.filesusr.com/ugd/c8df25_cbc95e56ce7c43919008c9ef5656cf21.pdf?index=true
- https://cdn.shopify.com/s/files/1/0437/4557/5061/files/childish_major_i_like_you.pdf
- https://cdn.shopify.com/s/files/1/0431/3343/6066/files/schengen_visa_application_form_doc_format.pdf
- https://cdn.shopify.com/s/files/1/0440/7050/2565/files/moruxusomadazevoxage.pdf
- https://cdn.shopify.com/s/files/1/0431/0381/3781/files/79173587553.pdf
- https://cdn.shopify.com/s/files/1/0437/0874/3834/files/unanswerable_questions_with_answers.pdf
- 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 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00005f93.bin` `a50b9cf23b0ce7f84d51ef599589562653f74002d521aa45641e3aa0c9cab7fd`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5F93	6144 bytes
`font_01_sfnt_off000074a1.bin` `8023212167aa47352266a5d9a76acf9155a6e323dce1ac0698cee9aea5472c19`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x74A1	5400 bytes
`font_02_sfnt_off000086eb.bin` `5816f11854e0ff8a784329f82afeafcd436ea1e56f1f2d30321b5c276f744f05`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x86EB	10356 bytes

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