PDF malware analysis — malicious · b88d137df032eafe

MALICIOUS

PDF

64.6 KB Created: 2020-08-23 08:59:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: fbf03042fdf776deb9f45aa8d5144607 SHA-1: 33f469d975698276b011403568a4c6654107c6ac SHA-256: b88d137df032eafee9847171a37a9847fa52751cd94738a7f734e0a97daeb426

128 Risk Score

Malware Insights

MITRE ATT&CK

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

The PDF file contains multiple heuristics indicating malicious intent, including a critical finding of a redirector link to 'ttraff.com' and a PDF link farm. The document body, though partially garbled, contains text related to 'get your guide berlin phone number' and the malicious URL, suggesting a lure. The presence of numerous embedded links, many pointing to Shopify domains, further supports the link farm heuristic. The primary malicious IOC is the redirector URL, which likely serves as the initial stage for delivering a payload.

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.
Fake invoice / payment lure low SE_INVOICE_LURE

Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
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.com/pify?keyword=get+your+guide+berlin+phone+number
- http://xilobuder.millseatonpublic.com.au/uploads/1/3/2/6/132695306/kekewuwaven.pdf
- http://vusazoru.motonorm.com/uploads/1/3/0/8/130874493/kawin-taken-gepas.pdf
- http://files.moniquenicolecaston.com/uploads/1/3/0/9/130969522/fagakiko_purowuwojasitel_torizeve_juwufijide.pdf
- https://cdn.shopify.com/s/files/1/0428/5035/3318/files/8390358637.pdf
- https://cdn.shopify.com/s/files/1/0437/1746/0120/files/71947155973.pdf
- https://cdn.shopify.com/s/files/1/0433/7087/2986/files/44683833351.pdf
- https://cdn.shopify.com/s/files/1/0434/9139/3698/files/lonot.pdf
- https://cdn.shopify.com/s/files/1/0430/9614/6073/files/penudo.pdf
- https://cdn.shopify.com/s/files/1/0438/4695/9261/files/investment_banker_resume.pdf
- https://cdn.shopify.com/s/files/1/0439/8658/3710/files/breaking_into_wall_street_investment_banking_interview_guide.pdf
- https://cdn.shopify.com/s/files/1/0445/6284/1759/files/basic_computer_training_file.pdf
- https://cdn.shopify.com/s/files/1/0428/0582/1599/files/56436766215.pdf
- https://cdn.shopify.com/s/files/1/0430/0659/1127/files/ruvobugelaregarevofazu.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 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000bfe9.bin` `33b15d227d9fa1b1d4a2792aab65a712700ee99da48d772a8f1c2c74170cee44`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xBFE9	5256 bytes
`font_01_sfnt_off0000d1a5.bin` `77d66a151fbfff2ccb5a6be1d1fd596343673b9fc93f60515ffa4bb00b4309c6`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD1A5	10484 bytes

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