Malicious PDF — malware analysis report

Static analysis result for SHA-256 738c51fed002b281…

MALICIOUS

PDF

50.2 KB Created: 2020-07-22 11:02:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4f6521c0ea5110f450412dd461e0c2ea SHA-1: 3f1e4e4fdb40746b3770131b5c51516393266683 SHA-256: 738c51fed002b28187369c009d77eb4bc7e9b1aa3f2c1c1e5d385c395385a49d
154 Risk Score

Malware Insights

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

The PDF contains numerous links, with a critical heuristic identifying a link to known malicious redirector infrastructure at 'ttraff.com'. This suggests the document is designed to redirect users to malicious sites, likely for phishing or to download further malware. The presence of a large number of external PDF links also indicates a link farm, a common tactic for SEO manipulation or distributing malicious content.

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=anlage+av+2018+pdf
    • http://files.littlechurchinthepines.org/uploads/1/3/0/9/130969026/wimedalilan_miwim.pdf
    • http://files.gnomiesworld.com/uploads/1/3/1/6/131606366/9048024.pdf
    • http://files.cony.studio/uploads/1/3/1/4/131454306/6609176.pdf
    • http://files.lacert.org/uploads/1/3/1/6/131637881/4934386.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0430/5698/8317/files/7743984453.pdf
    • https://cdn.shopify.com/s/files/1/0433/9377/7827/files/rikugupefikenozutolanilu.pdf
    • https://cdn.shopify.com/s/files/1/0437/6782/4533/files/fujago.pdf
    • https://cdn.shopify.com/s/files/1/0431/0741/8273/files/63276704677.pdf
    • https://cdn.shopify.com/s/files/1/0429/8991/2218/files/53934923564.pdf
    • https://mijukuwojaw.files.wordpress.com/2020/06/dofapitasi.pdf
    • https://laderafi767971175.files.wordpress.com/2020/07/kipovoj.pdf
    • https://ribodijexob.files.wordpress.com/2020/06/56752665884.pdf
    • https://tesigoxexo.files.wordpress.com/2020/07/miwozijelofipisozon.pdf
    • https://cdn.shopify.com/s/files/1/0434/7055/3250/files/vigosatekudobexulef.pdf
    • https://cdn.shopify.com/s/files/1/0433/0638/5573/files/wopugurilevafekaworugaj.pdf
    • https://cdn.shopify.com/s/files/1/0428/7502/7619/files/60300461920.pdf
    • https://cdn.shopify.com/s/files/1/0431/3592/6434/files/najukiwowixozuj.pdf
    • https://cdn.shopify.com/s/files/1/0430/4211/1637/files/bejiwigatasuzusuzewuje.pdf
    • https://cdn.shopify.com/s/files/1/0431/7092/2655/files/77999108755.pdf
    • https://cdn.shopify.com/s/files/1/0431/4916/4705/files/bekunanujimoniwegu.pdf
    • https://cdn.shopify.com/s/files/1/0429/2159/0951/files/24521291484.pdf
    • https://cdn.shopify.com/s/files/1/0434/5780/6486/files/moxegumigetalanuzavujot.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_off000085b2.bin
e0462a3601acc875f8373de41c8d430ed245a31128f4cec602542bf1c4245403		 pdf-font-stream PDF embedded font (sfnt) at offset 0x85B2 5056 bytes
font_01_sfnt_off000096f5.bin
4df1ef6cebea378319d9cc113994a770539477d07c75609b4262351a1f80946b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x96F5 10396 bytes

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