Malicious PDF — malware analysis report

Static analysis result for SHA-256 b60e2c49026ab2aa…

MALICIOUS

PDF

53.0 KB Created: 2020-08-03 07:27:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 82065848517e4c65ad62d9aa08506a74 SHA-1: 385b5ea58581f5c7bd886cd3fa2414c76d699f83 SHA-256: b60e2c49026ab2aabca02011e98cf3e93ba7e513c756d0a8052613b0b03d4282
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to external PDF files hosted on Shopify. One of the primary links, 'https://ttraff.ru/pify?keyword=conceptual+physical+science+6th+edition', is identified as a malicious redirector. This suggests the document is part of a link farm or SEO poisoning campaign designed to drive traffic to malicious infrastructure, likely for further exploitation or phishing.

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.ru/pify?keyword=conceptual+physical+science+6th+edition
    • http://files.sbresourcegrp.com/uploads/1/3/1/8/131856290/sototubov_nowos_gejezixamuveg.pdf
    • http://files.angelaherbert-hodges.com/uploads/1/3/0/7/130739895/7811517.pdf
    • http://files.mitsuhiro-ikeda.com/uploads/1/3/1/6/131606733/wefirom.pdf
    • http://files.fearlessgift.org/uploads/1/3/1/8/131872107/4069010.pdf
    • http://files.haley-grace.com/uploads/1/3/1/3/131379732/447d739.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/dotedijulukamani.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/11286786524.pdf
    • https://cdn.shopify.com/s/files/1/0428/3334/6719/files/dadoxigavukowoxuf.pdf
    • https://cdn.shopify.com/s/files/1/0435/7577/1304/files/18469263641.pdf
    • https://cdn.shopify.com/s/files/1/0429/3555/0111/files/pulumowojepujefuwabelupap.pdf
    • https://cdn.shopify.com/s/files/1/0433/0287/9387/files/tudarekefaj.pdf
    • https://cdn.shopify.com/s/files/1/0432/2210/6271/files/lejatipa.pdf
    • https://cdn.shopify.com/s/files/1/0429/7926/2615/files/33504119671.pdf
    • https://cdn.shopify.com/s/files/1/0433/8365/2506/files/33580008227.pdf
    • https://cdn.shopify.com/s/files/1/0432/6152/6166/files/periodic_table_black_and_white_2017.pdf
    • https://cdn.shopify.com/s/files/1/0437/2935/4903/files/rufewaregi.pdf
    • https://cdn.shopify.com/s/files/1/0430/8199/0304/files/61305390635.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_off0000802b.bin
ccb89ef3b7d997d103be9c21c5dabb6a4e2aa034b8707a5a08536ed4ac63cf47
pdf-font-stream PDF embedded font (sfnt) at offset 0x802B 5228 bytes
font_01_sfnt_off000091ed.bin
5f7d70176a684fcb4d61245bffad5a0c9188d4d416cc6cbc0c274af87f73dd7d
pdf-font-stream PDF embedded font (sfnt) at offset 0x91ED 11004 bytes
font_02_sfnt_off0000b70d.bin
0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333
pdf-font-stream PDF embedded font (sfnt) at offset 0xB70D 4324 bytes