Malicious PDF — malware analysis report

Static analysis result for SHA-256 30868066f32b6b92…

MALICIOUS

PDF

43.2 KB Created: 2020-08-09 13:57:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f8def167f6d9ba2dfecc9f541bc2ddf1 SHA-1: 186baa8deca91fa2a227b6162eb63929f89d95ab SHA-256: 30868066f32b6b92af0c6c8a0a133e7d34dfb4149b7575203677539bb24225e3
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=dream+theater+images+and+words+guitar+tab+pdf'. This URL is likely part of a phishing or scam campaign, attempting to lure users with a seemingly relevant search result. The document also contains a large number of embedded links to various PDF files, many hosted on Shopify, which is flagged as a PDF link farm. While some Shopify links are benign, the primary redirector is malicious. No scripts were extracted, but the presence of the malicious redirector and link farm strongly suggests a social engineering attack.

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=dream+theater+images+and+words+guitar+tab+pdf
    • http://wolutebut.onwgaming.com/uploads/1/3/1/4/131408027/22fdee7b5.pdf
    • http://files.airelectric.co/uploads/1/3/0/7/130775977/72ae59.pdf
    • http://zizatuv.hubbellbros.com/uploads/1/3/0/7/130738837/jikifexugulerur_jupiminabudu_papisok_jikit.pdf
    • http://files.launasorensen.com/uploads/1/3/1/3/131398449/nofekepemupugo_supafarajo.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/fawalonilon.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/42778697636.pdf
    • https://cdn.shopify.com/s/files/1/0440/4844/9686/files/chakravarthy_sulibele_books.pdf
    • https://cdn.shopify.com/s/files/1/0432/9072/2469/files/lupidezupejatowuvivugadog.pdf
    • https://cdn.shopify.com/s/files/1/0431/3592/6434/files/52384497314.pdf
    • https://cdn.shopify.com/s/files/1/0436/3105/0915/files/free_harley_davidson_service_manual.pdf
    • https://cdn.shopify.com/s/files/1/0431/5080/3099/files/54849196602.pdf
    • https://cdn.shopify.com/s/files/1/0437/4098/7544/files/36663058528.pdf
    • https://cdn.shopify.com/s/files/1/0441/0900/4952/files/mabulolanolawelik.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/20880330559.pdf
    • https://cdn.shopify.com/s/files/1/0429/8843/7655/files/39197990481.pdf
    • https://cdn.shopify.com/s/files/1/0433/2421/1354/files/ielts_writing_task_2_practice.pdf
    • https://cdn.shopify.com/s/files/1/0431/5473/5264/files/nuxejomivax.pdf
    • https://cdn.shopify.com/s/files/1/0432/8764/2270/files/jozirevizurupokolixukoxe.pdf
    • https://cdn.shopify.com/s/files/1/0430/1642/1529/files/duwumopopuboketotovadiva.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.

FilenameKindSourceSize
font_00_sfnt_off00006a22.bin
251b90bc978f4e93cd739ad0d455dca612a35e89073a6335b79304bd242701ae		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6A22 5652 bytes
font_01_sfnt_off00007d44.bin
a918210609218767cf7637861b38d3e28237d3a4225d571b8152c660a97f1bf8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7D44 10044 bytes

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