Malicious PDF — malware analysis report

Static analysis result for SHA-256 2be1c1b297cb3630…

MALICIOUS

PDF

45.7 KB Created: 2020-10-28 18:30:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 879c4d8661572a93dfcd755e32ed4e38 SHA-1: 5085f92306a87c24a831ac8bad175f9c22ee08c7 SHA-256: 2be1c1b297cb36303d5e4b79420f197e91cba6c764b81c6f0ede75986819ee90
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a link to a known malicious redirector, indicating an attempt to lead the user to a harmful site. The document body, though heavily obfuscated, contains the same URL. The presence of embedded URLs and the ML classifier's high confidence score suggest malicious intent, 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://ggtraff.ru/strik?keyword=policy+making+process+pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/tenunud/maxatasifuvike.pdf
    • https://cdn.shopify.com/s/files/1/0501/8550/2908/files/cours_figure_de_style.pdf
    • https://uploads.strikinglycdn.com/files/ad018384-20a2-471b-b09d-b9ab9e372bb2/wewimunez.pdf
    • https://uploads.strikinglycdn.com/files/ccee5fc6-c381-4209-a6e4-252e95e0f348/vurufawiguponif.pdf
    • https://cdn.shopify.com/s/files/1/0468/0145/3205/files/37733673051.pdf
    • https://s3.amazonaws.com/bupijila/area_code_601_location.pdf
    • https://uploads.strikinglycdn.com/files/f08615a2-67e8-4cd1-89b1-e2e8a4bce53c/wekufivovidadidi.pdf
    • https://s3.amazonaws.com/tobojelusiwi/42547893058.pdf
    • https://cdn.shopify.com/s/files/1/0431/1344/7584/files/ver_los_simpsons_capitulos_completos.pdf
    • https://s3.amazonaws.com/zidenigad/characteristics_of_light.pdf
    • https://cdn.shopify.com/s/files/1/0501/3474/5253/files/2020_population_and_housing_census_ghana.pdf
    • https://cdn.shopify.com/s/files/1/0463/0301/9170/files/cellular_structure_and_function_packet_answers.pdf
    • https://s3.amazonaws.com/belopudevuzuza/golden_rule_of_capital_accumulation.pdf
    • https://s3.amazonaws.com/tipikaxe/dakuzegimere.pdf
    • https://s3.amazonaws.com/memul/official_letter_writing_examples.pdf
    • https://uploads.strikinglycdn.com/files/c4317456-5430-44ce-bd99-df35d0dcc818/94710443884.pdf
    • https://cdn.shopify.com/s/files/1/0486/2682/7432/files/speak_study_guide_answers.pdf
    • https://s3.amazonaws.com/liwafo/zabexolotemutet.pdf
    • https://cdn.shopify.com/s/files/1/0439/8877/9166/files/ez_isomerism_khan_academy.pdf
    • https://cdn.shopify.com/s/files/1/0493/0070/1343/files/92637957689.pdf
    • https://cdn.shopify.com/s/files/1/0501/8697/7441/files/jebuso.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.

FilenameKindSourceSize
font_00_sfnt_off000073b2.bin
73d91f3635963b2b1fb7a8812a0c1ef00b4de16b32a65d1fac48ab2842ea657e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x73B2 5644 bytes
font_01_sfnt_off000086e2.bin
11a99aba609eac65695aa1d36f40298bc36964b999be0e5d7a794105be6f3ab1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x86E2 10100 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.