Malicious PDF — malware analysis report

Static analysis result for SHA-256 989ba4e933af5709…

MALICIOUS

PDF

47.8 KB Created: 2020-08-14 09:51:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b3699c8e4c337341281088b366958cb5 SHA-1: 042f28900a01ac4f8238b1288661037c165b7736 SHA-256: 989ba4e933af570954cbf352739b7cc1e73322580f3956c84bd956cf7a97015f
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a heuristic firing indicating it links to known malicious redirector infrastructure, specifically a URL related to a 'hellfire ring lvl 70 guide'. The document body, though heavily obfuscated, also contains this URL. The PDF also exhibits characteristics of a link farm, with numerous embedded links pointing to external resources, many hosted on Shopify. This suggests a social engineering attempt to drive traffic to malicious sites under the guise of providing useful information.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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.
  • 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=hellfire+ring+lvl+70+guide
    • http://mebirax.stickandstrum.com/uploads/1/3/1/6/131637881/rotise.pdf
    • http://files.impactdesign.co/uploads/1/3/1/4/131483031/6393183.pdf
    • http://fewul.driver4uiceland.com/uploads/1/3/0/7/130775403/kotemigunas-vumovif-noropen.pdf
    • http://dekegomu.kitsbycarla.com/uploads/1/3/1/6/131606149/1b6047eda6b2b9a.pdf
    • https://cdn.shopify
    • https://cdn.shopify.com/s/files/1/0432/0300/2523/files/vekiturexivaro.pdf
    • https://cdn.shopify.com/s/files/1/0432/0329/7437/files/gidolubekex.pdf
    • https://cdn.shopify.com/s/files/1/0431/6738/3713/files/soufi_mon_amour_en_anglais.pdf
    • https://cdn.shopify.com/s/files/1/0433/7015/2088/files/vasidopevalukul.pdf
    • https://cdn.shopify.com/s/files/1/0454/5403/3054/files/data_analysis_with_open_source_tools_download.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mipin.pdf
    • https://cdn.shopify.com/s/files/1/0429/2309/8279/files/sedaj.pdf
    • https://cdn.shopify.com/s/files/1/0430/4535/5674/files/vosodenerofidodajojada.pdf
    • https://cdn.shopify.com/s/files/1/0437/3928/3608/files/business_process_improvement_examples.pdf
    • https://cdn.shopify.com/s/files/1/0448/3471/7858/files/altivar_31_programming_manual.pdf
    • https://cdn.shopify.com/s/files/1/0433/1582/2747/files/76162711935.pdf
    • https://cdn.shopify.com/s/files/1/0430/9018/2304/files/fulugulakim.pdf
    • https://cdn.shopify.com/s/files/1/0434/4302/8120/files/xezaxelozadilapixige.pdf
    • https://cdn.shopify.com/s/files/1/0434/7189/6736/files/essential_grammar_in_use_supplementary_exercises_fourth_edition.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_off00007354.bin
eda15da2f11004123932340cd4df268d9dc7d6052ab4d2a9bd726b4cc7793659
pdf-font-stream PDF embedded font (sfnt) at offset 0x7354 4932 bytes
font_01_sfnt_off00008437.bin
d423e5644bd6759db5509234bd73d082769c6ea67ab8a3a513cf0fd1c1016285
pdf-font-stream PDF embedded font (sfnt) at offset 0x8437 14956 bytes