Malicious PDF — malware analysis report

Static analysis result for SHA-256 82e38454db122f68…

MALICIOUS

PDF

47.9 KB Created: 2020-08-26 10:26:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 51363ed62d35cc86b47d271bf9d30dee SHA-1: 9b2fdbf12e031743a0f55797678e3283fcc63639 SHA-256: 82e38454db122f68a2016d52a74043387dfbca1e829902db7bd9cc6042587b52
168 Risk Score

Malware Insights

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

The PDF contains numerous links, with one specifically pointing to a known malicious redirector. The document also includes a visual download button and a lure suggesting a password-protected archive, indicating a social engineering attempt to trick the user into downloading malicious content. The presence of a link farm suggests an attempt to game search engine results.

Heuristics 5

  • 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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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.ru/pify?keyword=pokemon+black.+sav
    • http://files.borntoblossom.org/uploads/1/3/1/6/131606631/wilajowewi-torukilebido-gowurajerixa.pdf
    • http://juzoro.lindakaehne.com/uploads/1/3/1/6/131606490/jowex.pdf
    • http://files.boobsandgaming.com/uploads/1/3/1/4/131453610/fumijumebunagubabise.pdf
    • http://files.capturedbyporches.com/uploads/1/3/0/7/130775743/zebipunutixinizezi.pdf
    • https://cdn.shopify.com/s/files/1/0429/1421/8151/files/beratusovisevovototi.pdf
    • https://cdn.shopify.com/s/files/1/0435/0545/1174/files/68166080441.pdf
    • https://cdn.shopify.com/s/files/1/0438/0409/8722/files/91128848389.pdf
    • https://cdn.shopify.com/s/files/1/0435/2681/5895/files/lokefumatofase.pdf
    • https://cdn.shopify.com/s/files/1/0433/1687/1326/files/pl_sql_programming_tutorial.pdf
    • https://cdn.shopify.com/s/files/1/0435/1649/3976/files/93241806760.pdf
    • https://cdn.shopify.com/s/files/1/0432/1378/3203/files/rpg_maker_xp_android_apk.pdf
    • https://cdn.shopify.com/s/files/1/0434/5361/2199/files/84022311709.pdf
    • https://cdn.shopify.com/s/files/1/0439/3612/0990/files/blueprint_3_student_book.pdf
    • https://cdn.shopify.com/s/files/1/0432/0146/2436/files/god_of_war_3_ps3_trophy_guide.pdf
    • https://cdn.shopify.com/s/files/1/0435/1954/1416/files/72719939536.pdf
    • https://cdn.shopify.com/s/files/1/0452/4739/8050/files/kinugubojagojidunodinewu.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006751.bin
6b1ae038a771f5d9af4a45b19643d3589c2240c8cd4a5c7d99c42c5d995c37bd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6751 3908 bytes
font_01_sfnt_off0000752c.bin
426f5f47dce40ef8fc0be3171364ec446ac539713a734ac3e42a4c008671c889		 pdf-font-stream PDF embedded font (sfnt) at offset 0x752C 5144 bytes
font_02_sfnt_off000086a8.bin
7a767565e6db14565d1450b984f34c22597bcc68d9450ed4c818dcb9f5f86fef		 pdf-font-stream PDF embedded font (sfnt) at offset 0x86A8 13316 bytes

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