Malicious PDF — malware analysis report

Static analysis result for SHA-256 560d80393dadfc56…

MALICIOUS

PDF

48.6 KB Created: 2020-08-13 22:44:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 789776af678f94d89681dc3eae217d66 SHA-1: 0893d157b3e9f6d3005862444edf6a7bab7924b6 SHA-256: 560d80393dadfc565e75d52b6ccfd6bf1ff3c037e89dffc46eda1df593d3f77a
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.cc/pify?keyword=antivirus+android+tv'. Additionally, it exhibits characteristics of a PDF link farm, with numerous external links, many hosted on cdn.shopify.com. The document body, though heavily obfuscated, contains the same suspicious URL. The primary attack vector appears to be social engineering, using a seemingly relevant keyword to entice clicks to a malicious site.

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=antivirus+android+tv
    • http://files.chicagoschoolofgrappling.com/uploads/1/3/1/4/131409170/312064.pdf
    • http://files.daniellewestdyk.com/uploads/1/3/1/4/131437636/gituse.pdf
    • http://files.forestgatetherapy.ca/uploads/1/3/0/7/130738998/lotutaxati_junef_vativivovefon.pdf
    • http://files.happytimedaycare.org/uploads/1/3/0/8/130814421/a7408e4c7b9f.pdf
    • https://cdn.shopify.com/s/files/1/0435/6135/3371/files/anisocorie_etiologie.pdf
    • https://cdn.shopify.com/s/files/1/0428/6241/1942/files/gasarirusirosipexezibixi.pdf
    • https://cdn.shopify.com/s/files/1/0429/8234/2815/files/binge_eating_disorder_scale.pdf
    • https://cdn.shopify.com/s/files/1/0435/6440/0798/files/metodesopinijaxiveguvos.pdf
    • https://cdn.shopify.com/s/files/1/0431/4618/2822/files/parasitic_diseases_in_humans.pdf
    • https://cdn.shopify.com/s/files/1/0429/6025/7177/files/capitalization_and_punctuation_worksheets_2nd_grade.pdf
    • https://cdn.shopify.com/s/files/1/0435/4303/6053/files/xikomobetakugiselefa.pdf
    • https://cdn.shopify.com/s/files/1/0432/2089/3864/files/givikesapukonolodoju.pdf
    • https://cdn.shopify.com/s/files/1/0431/1243/1776/files/kefedabese.pdf
    • https://cdn.shopify.com/s/files/1/0435/2655/3755/files/keronibinatulujejikixutam.pdf
    • https://cdn.shopify.com/s/files/1/0430/9218/1153/files/93341872869.pdf
    • https://cdn.shopify.com/s/files/1/0433/7431/3621/files/punctuation_worksheets_for_grade_3_with_answers.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_off00007674.bin
ef7008638d5b3ab1ecdefade471632a593c6aa4aaa134a69517040813573ad1e
pdf-font-stream PDF embedded font (sfnt) at offset 0x7674 4600 bytes
font_01_sfnt_off00008612.bin
5fdf0f0a77799694f37c9c5954173e049469ca9fc7b67bae29eddd834dae540d
pdf-font-stream PDF embedded font (sfnt) at offset 0x8612 9644 bytes
font_02_sfnt_off0000a714.bin
1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e
pdf-font-stream PDF embedded font (sfnt) at offset 0xA714 4324 bytes