Malicious PDF — malware analysis report

Static analysis result for SHA-256 7b7ab1e141e70339…

MALICIOUS

PDF

46.0 KB Created: 2020-08-10 14:38:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: fa1a328c37fa68fc179e39840718a1dd SHA-1: 90d576d90ba815ef252374d086f9c53a1ddea081 SHA-256: 7b7ab1e141e703397641a10b4f97e1993e6f39d0ce838018e5906abfdbbc5aa3
202 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF contains multiple embedded links, with one identified as a malicious redirector. The document also includes a lure to copy/paste clipboard content into a shell, suggesting an attempt to trick the user into executing commands. The presence of numerous links, many pointing to Shopify, indicates a potential link farm used for SEO poisoning or distributing malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LURE
    Document tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=bootable+pendrive+using+cmd+pdf
    • http://levoxala.advancedtechpac.com/uploads/1/3/1/4/131483200/mepiziselu.pdf
    • http://wufixigot.mindfuldemocracy.org/uploads/1/3/0/9/130969204/vefopemaxafu_zafedaj_genenonujunu.pdf
    • http://wuxobora.lp-learningcenter.com/uploads/1/3/0/8/130814229/cede5835.pdf
    • http://files.pfmorgans.com/uploads/1/3/2/6/132681164/2290242.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://cdn.shopify.com/s/files/1/0432/4196/3679/files/bewuzopalurizosemuze.pdf
    • https://cdn.shopify.com/s/files/1/0430/7235/6509/files/neurotransmissor_acetilcolina.pdf
    • https://cdn.shopify.com/s/files/1/0436/4071/7462/files/85897849648.pdf
    • https://cdn.shopify.com/s/files/1/0439/1596/8680/files/stay_hungry_stay_foolish_book_review_download.pdf
    • https://cdn.shopify.com/s/files/1/0429/7791/9129/files/kajurinowesegopevow.pdf
    • https://cdn.shopify.com/s/files/1/0437/1123/4199/files/believer_imagine_dragons_partitura.pdf
    • https://cdn.shopify.com/s/files/1/0429/8211/3433/files/fachttps_www._google._com.pdf
    • https://cdn.shopify.com/s/files/1/0430/5698/8311/files/lamenizemozojemubekifatax.pdf
    • https://cdn.shopify.com/s/files/1/0431/3510/7233/files/1235973502.pdf
    • https://cdn.shopify.com/s/files/1/0432/2482/6014/files/tineboduvofovemu.pdf
    • https://cdn.shopify.com/s/files/1/0433/8424/2337/files/pisos.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000677f.bin
8e8089ebaf5089ec8d583bea8b417e3fcd0a5757288343b710e045bce2dd3127		 pdf-font-stream PDF embedded font (sfnt) at offset 0x677F 5604 bytes
font_01_sfnt_off00007a6c.bin
05465cf81671e08dc1d7cc4f3857b06f1f2f513c3b669bc0a5b853482e560bf3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7A6C 10144 bytes
font_02_sfnt_off00009d24.bin
0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9D24 4324 bytes

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