PDF malware analysis — malicious · 97dabd38e263eec6

MALICIOUS

PDF

46.0 KB Created: 2020-08-14 19:39:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: d3f71bec65d1ae1b1bce9a1e8057f574 SHA-1: 22efe7b4edb58b88b0f97d8dcf22a4f77acf323a SHA-256: 97dabd38e263eec6028046f45afdd2222d9dad772f42b4bf0b5b7010a82a6f1d

152 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a mass external link farm, with multiple links pointing to shopify.com domains and a primary malicious redirector at ttraff.cc. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK specifically flags the ttraff.cc URL, indicating it leads to known malicious infrastructure. The document body text, though garbled, contains the phrase 'Picture of a western union form' and the malicious URL, suggesting a lure for a scam or phishing 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 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://ttraff.cc/pify?keyword=picture+of+a+western+union+form
- http://files.stephanierachelschwartz.com/uploads/1/3/1/4/131453623/9552b63a.pdf
- https://cdn.shopify.com/s/files/1/0433/7342/8888/files/19492394048.pdf
- https://cdn.shopify.com/s/files/1/0437/1152/9114/files/77572930972.pdf
- https://cdn.shopify.com/s/files/1/0437/8814/0696/files/nordic_trac_cx_1000.pdf
- https://cdn.shopify.com/s/files/1/0430/6426/2818/files/when_titans_clashed.pdf
- https://cdn.shopify.com/s/files/1/0428/8489/0790/files/nawew.pdf
- https://cdn.shopify.com/s/files/1/0432/7096/3350/files/pejozanadofezazisowosi.pdf
- https://cdn.shopify.com/s/files/1/0436/3298/4222/files/67175224048.pdf
- https://cdn.shopify.com/s/files/1/0431/6138/7170/files/21705959614.pdf
- https://cdn.shopify.com/s/files/1/0435/4700/0983/files/10984301648.pdf
- https://cdn.shopify.com/s/files/1/0438/6599/7472/files/13277902051.pdf
- https://cdn.shopify.com/s/files/1/0433/6166/5192/files/spatial_join_qgis.pdf
- https://cdn.shopify.com/s/files/1/0431/7623/1063/files/kojubaduwarojon.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_off0000774d.bin` `cd6f00a40f3c1f208873870a596e7c2d6386ffa645541dd02615060be72e53e3`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x774D	5088 bytes
`font_01_sfnt_off0000888d.bin` `f7ab65333a45e900b0ae9a0154374cc0365f0106a516dbd3ed96e53c5091dd20`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x888D	10272 bytes

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