Malicious PDF — malware analysis report

Static analysis result for SHA-256 e366b5c287181349…

MALICIOUS

PDF

125.4 KB Created: 2020-08-11 12:39:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 683d9811cad5e19bc6fef5c79e2e64f8 SHA-1: a17f98067370b39279f0c3545f71a9e7bb9bd845 SHA-256: e366b5c287181349870162f32faf0108a591293d21e1b92732d054f255aba07e
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=streamline+english+directions+pdf'. This URL is likely part of a phishing or social engineering campaign designed to trick users into clicking through to malicious content. The document body, though heavily obfuscated, contains the same redirector URL, reinforcing its role as a lure. The presence of a link farm heuristic further suggests a malicious intent to distribute links.

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.cc/pify?keyword=streamline+english+directions+pdf
    • http://jajerap.hanadiphotography.com/uploads/1/3/1/3/131378950/a7de3df0e4a.pdf
    • http://files.2d3dsouth.org/uploads/1/3/2/6/132681877/c914f7efef4.pdf
    • http://files.emiliafaro.com/uploads/1/3/1/1/131164129/9241430.pdf
    • http://files.nutrition-girl.com/uploads/1/3/2/6/132695755/faborajo-vokosusobif-wofapexal.pdf
    • https://cdn.shopify.com/s/files/1/0429/7264/3491/files/31526263069.pdf
    • https://cdn.shopify.com/s/files/1/0428/7237/3411/files/40179791734.pdf
    • https://cdn.shopify.com/s/files/1/0439/2157/2008/files/givafajuvatu.pdf
    • https://cdn.shopify.com/s/files/1/0430/2422/0321/files/tiwupinimito.pdf
    • https://cdn.shopify.com/s/files/1/0435/4496/9367/files/approach_to_oliguria.pdf
    • https://cdn.shopify.com/s/files/1/0436/6853/7497/files/witelopitikanukokadabix.pdf
    • https://cdn.shopify.com/s/files/1/0428/6437/8022/files/convert_number_to_date_in_excel.pdf
    • https://cdn.shopify.com/s/files/1/0434/1402/8444/files/weed_firm_replanted.pdf
    • https://cdn.shopify.com/s/files/1/0433/6451/5994/files/18658098608.pdf
    • https://cdn.shopify.com/s/files/1/0430/4309/4677/files/jirivofavatosukulelizifik.pdf
    • https://cdn.shopify.com/s/files/1/0431/0364/9954/files/49539789794.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zosogorimojafi.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_off0001887d.bin
667e778503b5f98cb3cf74736f952245a90a77220b649968e9ccd86a4d063952
pdf-font-stream PDF embedded font (sfnt) at offset 0x1887D 5672 bytes
font_01_sfnt_off00019b8b.bin
0c74d2c2937c267e5ab3cd479c67cf8ccb113aa03cf7eabb564ef3e911b9c3cb
pdf-font-stream PDF embedded font (sfnt) at offset 0x19B8B 19956 bytes
font_02_sfnt_off0001d2b0.bin
43e84046d57c5d8edad47de9228ce36feb53c5e515436c294a71041590f3a3a6
pdf-font-stream PDF embedded font (sfnt) at offset 0x1D2B0 16132 bytes