PDF malware analysis — malicious · 9d118de22f811f1d

MALICIOUS

PDF

43.5 KB Created: 2020-08-19 02:41:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: d0005a9d80655993746522e950cf70c9 SHA-1: 59e63de7a0e15ced6c2f5f48283a7cdac56e1344 SHA-256: 9d118de22f811f1dcea62ad7892e7a004679caa1f5daad5d4fbcacf23d8fe025

152 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a large number of embedded links, many of which point to external resources. One critical heuristic identified a link to known malicious redirector infrastructure at `https://ttraff.com/pify?keyword=bongo+movie+gabo+zigamba`. The document body, though partially obfuscated, also contains this URL and other links, suggesting a lure to potentially malicious content.

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=bongo+movie+gabo+zigamba
- http://lovaze.wmochrist.org/uploads/1/3/1/4/131437535/jijozogeb_kulix_gufeza.pdf
- https://cdn.shopify.com/s/files/1/0438/4253/5581/files/vifujuzanakokiwijonopetol.pdf
- https://cdn.shopify.com/s/files/1/0428/2833/3219/files/99104638674.pdf
- https://cdn.shopify.com/s/files/1/0438/6573/5328/files/25190356429.pdf
- https://cdn.shopify.com/s/files/1/0436/9599/7096/files/calendario_2020_escolar_2020_sep_190_dias.pdf
- https://cdn.shopify.com/s/files/1/0431/8828/9694/files/kobibewi.pdf
- https://cdn.shopify.com/s/files/1/0429/0415/8364/files/kasuvadisalatesa.pdf
- https://cdn.shopify.com/s/files/1/0431/0610/7552/files/acl_tear_exercises.pdf
- https://cdn.shopify.com/s/files/1/0431/0781/1495/files/puzzle_bobble_free_games.pdf
- https://cdn.shopify.com/s/files/1/0427/8370/3206/files/wisifodipurotokasiguvovex.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_off00006165.bin` `b67b4a6f8e33dcc2e02b24e9150846f2869b7b1b810c7bb6066d65645a4c2817`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6165	4704 bytes
`font_01_sfnt_off0000714c.bin` `c6bc5532155a17c7facc6921fee5f1c9d7b409c91ef31cdd1e6dbb65f595e484`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x714C	10012 bytes
`font_02_sfnt_off00009399.bin` `1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9399	4324 bytes

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