Malicious PDF — malware analysis report

Static analysis result for SHA-256 5508dc706b315b34…

MALICIOUS

PDF

50.7 KB Created: 2020-09-06 03:19:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 43d08b788ebad55a57f53f5727d73cc9 SHA-1: 91df13c29c5c701cc53d6158df1b0ddccc15926b SHA-256: 5508dc706b315b34af655af2164a309994520fe51ae2898abd44190bfae26b42
128 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell T1566.002 Spearphishing Attachment T1071.001 Web Protocols

The PDF contains a malicious redirector link disguised as a download button, aiming to lure users to a malicious site. The document body contains text related to 'Defender 3 mod apk latest version', suggesting a lure for potentially unwanted software or malware. The presence of a link farm further indicates an attempt to manipulate search engine results or distribute malicious content.

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.
  • 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
  • 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.me/wix?keyword=defender+3+mod+apk+latest+version
    • https://cdn.shopify.com/s/files/1/0428/7689/5398/files/lagigizubimojijavinejoman.pdf
    • https://cdn.shopify.com/s/files/1/0434/7727/0692/files/76077860878.pdf
    • https://cdn.shopify.com/s/files/1/0431/8747/0494/files/5846947127.pdf
    • https://cdn.shopify.com/s/files/1/0428/9904/6553/files/xamarin_forms_acr._userdialogs_example.pdf
    • https://cdn.shopify.com/s/files/1/0429/8748/7385/files/jonbenet_ramsey_autopsy.pdf
    • https://cdn.shopify.com/s/files/1/0427/6230/5702/files/jajezuturoderizejowawane.pdf
    • https://cdn.shopify.com/s/files/1/0439/9860/9566/files/jifinodax.pdf
    • https://cdn.shopify.com/s/files/1/0449/0277/6999/files/nejeb.pdf
    • https://cdn.shopify.com/s/files/1/0430/9372/1255/files/jozibogu.pdf
    • https://cdn.shopify.com/s/files/1/0433/5520/9879/files/android_apidemos_github.pdf
    • https://cdn.shopify.com/s/files/1/0438/6727/5424/files/77266699720.pdf
    • https://cdn.shopify.com/s/files/1/0456/8625/9871/files/jivulebofuvewoz.pdf
    • https://cdn.shopify.com/s/files/1/0435/6141/8913/files/canarias7_portada.pdf
    • https://cdn.shopify.com/s/files/1/0439/4300/2270/files/training_and_capacity_building_fssai.pdf
    • https://cdn.shopify.com/s/files/1/0437/7103/5809/files/26086957529.pdf
    • https://cdn.shopify.com/s/files/1/0465/4769/7814/files/71476629866.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/
    • https://cdn.shopify.com/s/files/1/0428/9904/6553/files/xamarin_forms_acr._userdialogs_ex

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007982.bin
df1c948e265040a9f207d78aa9ec85239e6b739f4c5ebc62b74546580beabc8c
pdf-font-stream PDF embedded font (sfnt) at offset 0x7982 5260 bytes
font_01_sfnt_off00008b55.bin
b7b31360aea446b9dac68aed0f1fb3a9e7e22fb50a2f35d6870188805aac699e
pdf-font-stream PDF embedded font (sfnt) at offset 0x8B55 10476 bytes
font_02_sfnt_off0000af31.bin
ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230
pdf-font-stream PDF embedded font (sfnt) at offset 0xAF31 4324 bytes