PDF malware analysis — malicious · 0a60258643cbaa61

MALICIOUS

PDF

40.7 KB Created: 2020-08-19 04:03:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 2cbd7a4c69c70ad42ac57d666d69949a SHA-1: 49810c6715ceac75eaa7e55eb80dc17970edb826 SHA-256: 0a60258643cbaa61e6dc13899efbfa45860b2f0f50281d2874eb1c0c1d67e1e8

154 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF file contains a large number of embedded links, many of which point to Shopify domains hosting other PDFs, forming a link farm. One of the primary links, https://ttraff.com/pify?keyword=life+cycle+of+bacteriophage+pdf, is identified as a malicious redirector. This suggests the document's purpose is to lure users into clicking these links, potentially leading to malware downloads or phishing sites.

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.com/pify?keyword=life+cycle+of+bacteriophage+pdf
- http://files.mikewmorgan.com/uploads/1/3/0/7/130775506/0d53aa98450f.pdf
- http://misapug.libertyruth.com/uploads/1/3/2/8/132816066/nojarexosinope.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0437/1392/1175/files/65320603770.pdf
- https://cdn.shopify.com/s/files/1/0429/1588/9305/files/50681106843.pdf
- https://cdn.shopify.com/s/files/1/0432/6912/8354/files/69311276405.pdf
- https://cdn.shopify.com/s/files/1/0434/7881/0789/files/31605613628.pdf
- https://cdn.shopify.com/s/files/1/0439/1780/3675/files/undo_last_git_commit.pdf
- https://cdn.shopify.com/s/files/1/0428/7270/1095/files/etiologi_abortus_inkomplit.pdf
- https://cdn.shopify.com/s/files/1/0433/8450/4474/files/cctv_camera_price_list.pdf
- https://cdn.shopify.com/s/files/1/0430/9650/6521/files/labetalol_hcl_davis.pdf
- https://cdn.shopify.com/s/files/1/0430/8733/1481/files/a_question_of_power_bessie_head.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/
- http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00005df7.bin` `a4b9f2e60e432232aa5e9c59235f069010f7e08049d39b4b96fadaf6f4d89afc`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5DF7	5420 bytes
`font_01_sfnt_off0000705c.bin` `eb41decd48af57e74ebcc2458ff32e1c60d6a3ebb26567aea679c48b1d56fe39`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x705C	11460 bytes

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