Malicious PDF — malware analysis report

Static analysis result for SHA-256 4ee4b86923cf5815…

MALICIOUS

PDF

42.5 KB Created: 2020-08-25 15:40:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2b89921e954ed7778244557427edd344 SHA-1: 0cf9bd47827cc034b0a8e3d08a0dd2b99e06e183 SHA-256: 4ee4b86923cf5815c65e47fe41d1e6522c9fea3f3b77e00e950c8496bc754a95
154 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded links pointing to Shopify-hosted PDF files, indicating a link farm likely used for SEO manipulation or to distribute further malicious content. One of the embedded URLs, https://ttraff.cc/pify?keyword=pvc+corrugated+sheet+sizes, is flagged as a malicious redirector. The ML classifier also strongly indicated maliciousness. No scripts were extracted, limiting the analysis of direct execution capabilities.

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.cc/pify?keyword=pvc+corrugated+sheet+sizes
    • http://files.radmanusa.com/uploads/1/3/0/8/130874233/fisanomuditijapi.pdf
    • http://weras.thesoulcenter.ca/uploads/1/3/1/4/131407558/mulite.pdf
    • http://files.lcdigitalconnect.com/uploads/1/3/1/0/131071252/dapawozijigawe.pdf
    • http://ritixer.ravenstreasures.org/uploads/1/3/0/7/130775478/sosotabowaxegifago.pdf
    • https://cdn.shopify.com/s/files/1/0432/6742/4409/files/96539730206.pdf
    • https://cdn.shopify.com/s/files/1/0433/9341/7367/files/64379581810.pdf
    • https://cdn.shopify.com/s/files/1/0437/1808/2709/files/7984149304.pdf
    • https://cdn.shopify.com/s/files/1/0438/9994/5112/files/zuvebikibepodokepanexu.pdf
    • https://cdn.shopify.com/s/files/1/0431/6083/0116/files/siwemogawagisobipimigeje.pdf
    • https://cdn.shopify.com/s/files/1/0427/7298/8071/files/tadik.pdf
    • https://cdn.shopify.com/s/files/1/0434/5213/7625/files/15427724357.pdf
    • https://cdn.shopify.com/s/files/1/0432/6873/5140/files/xutopo.pdf
    • https://cdn.shopify.com/s/files/1/0430/7533/8389/files/teorias_e_abordagens_da_administrao.pdf
    • https://cdn.shopify.com/s/files/1/0431/6423/7988/files/goterazuduvuxowifet.pdf
    • https://cdn.shopify.com/s/files/1/0429/8126/1466/files/rezafajakikubepikedupe.pdf
    • https://cdn.shopify.com/s/files/1/0433/8660/1639/files/rixuxebisagefemirajugexu.pdf
    • https://cdn.shopify.com/s/files/1/0431/8858/4605/files/josaxinirefesatekonita.pdf
    • https://cdn.shopify.com/s/files/1/0430/9496/6429/files/brian_wilson_beach_boys_net_worth.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_off000066b8.bin
952d7182c6565b4073826f04b6fcef84d83627031953e9ac18dd52f8a600846b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x66B8 5280 bytes
font_01_sfnt_off000078af.bin
a85f8fa23d5c3b5d113a50d5dc48634383ba90b5bbf6314c75de4c94eccc87c3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x78AF 10876 bytes

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