PDF malware analysis — malicious · a6cc2c6e027ebd94

MALICIOUS

PDF

42.9 KB Created: 2020-08-15 18:02:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: fd955130bbedcaafbe8c069fde84b348 SHA-1: 75158704e62c99d85c1ac80524c871237122dc3f SHA-256: a6cc2c6e027ebd948185edc0964f87420ab372be75280de89b363f0a3a7c8784

152 Risk Score

Malware Insights

MITRE ATT&CK

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

The PDF contains multiple embedded links, with one pointing to a known malicious redirector at `ttraff.ru`. The document body, though heavily obfuscated, appears to contain text related to a 'kingdom hearts official guide pdf', suggesting a lure to disguise malicious intent. The presence of a link farm further indicates a malicious purpose, likely for phishing or malware distribution.

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.ru/wb?keyword=kingdom%20hearts%20official%20guide%20pdf
- http://files.parmsongs.com/uploads/1/3/0/8/130874284/2757613.pdf
- http://files.drcoachkellipt.com/uploads/1/3/1/4/131409557/wusojiwo-pekimajej-gufor-pupabixazopaf.pdf
- http://files.katesmathlessons.com/uploads/1/3/1/4/131454355/20e70fae4ea1.pdf
- https://cdn.shopify.com/s/files/1/0434/6957/0198/files/45154701016.pdf
- https://cdn.shopify.com/s/files/1/0431/1960/7962/files/zodamewobezaso.pdf
- https://cdn.shopify.com/s/files/1/0429/0209/3987/files/v_k_letter_whatsapp_status_video.pdf
- https://cdn.shopify.com/s/files/1/0451/4558/7877/files/breathe_on_me_breath_of_god_chords.pdf
- https://cdn.shopify.com/s/files/1/0433/4364/2773/files/6953370591.pdf
- https://cdn.shopify.com/s/files/1/0437/7241/2055/files/jabilifemoregavuzi.pdf
- https://cdn.shopify.com/s/files/1/0431/1125/2132/files/bagaleb.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_off00005a93.bin` `6123335662ef7b1828b85fd39d38f561b4a8abcc81f354b06660d59e8bc1a0c4`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5A93	4256 bytes
`font_01_sfnt_off00006952.bin` `8c6863a5ec1e13f458d511e5e2dedf63a223dc31a6a7d868f00467c900974c65`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6952	5536 bytes
`font_02_sfnt_off00007bf8.bin` `b7be3900b485c1651c85506dde68ad46ff6d9673395841ac8e7979a4749ec797`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7BF8	10128 bytes

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