Malicious PDF — malware analysis report

Static analysis result for SHA-256 1c33c6795787607f…

MALICIOUS

PDF

44.0 KB Created: 2020-08-02 01:32:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ba755488bb037bdeae40053aa1370032 SHA-1: de543bd27f6c4aed211c2d88bb45a5f27707cc45 SHA-256: 1c33c6795787607f3790702956561e72218fca54980d3604d3c3017c6b5e507e
150 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a redirector service. The primary malicious link, 'https://ttraff.cc/pify?keyword=auto+click+cookie+clicker', is designed to redirect users to potentially harmful content. The document body, though heavily obfuscated, contains this URL and other links, suggesting a social engineering attempt to drive traffic to malicious infrastructure.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=auto+click+cookie+clicker
    • http://files.muscogeerea.com/uploads/1/3/0/8/130814280/geredafaletulev.pdf
    • http://files.aroundthesunmontessori.com/uploads/1/3/1/4/131437139/jugefenisatu.pdf
    • http://files.inspiralnyc.com/uploads/1/3/0/7/130740017/5221655.pdf
    • http://files.fauxmesticgoddess.com/uploads/1/3/1/8/131856381/gevaxil.pdf
    • http://files.bethanylutheranrlf.com/uploads/1/3/1/3/131381819/sizumomonogup.pdf
    • https://github.com/builtinnya/UncannyCoo
    • https://cdn.shopify.com/s/files/1/0437/6992/1690/files/43739362183.pdf
    • https://cdn.shopify.com/s/files/1/0433/5760/1943/files/jigote.pdf
    • https://cdn.shopify.com/s/files/1/0435/5771/6119/files/90465125977.pdf
    • https://cdn.shopify.com/s/files/1/0431/3110/9540/files/jexabuduweged.pdf
    • https://cdn.shopify.com/s/files/1/0437/2119/5688/files/coleman_tent_air_conditioner.pdf
    • https://cdn.shopify.com/s/files/1/0437/8984/4631/files/engineering_design_by_dieter_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0431/1954/2434/files/posibubexutanokufufo.pdf
    • https://cdn.shopify.com/s/files/1/0438/8116/9051/files/rovipuniwilesag.pdf
    • https://cdn.shopify.com/s/files/1/0431/7141/4167/files/80366153710.pdf
    • https://cdn.shopify.com/s/files/1/0428/0533/0083/files/limukuratuteroliraxafowex.pdf
    • https://cdn.shopify.com/s/files/1/0433/5003/2549/files/47613315603.pdf
    • https://cdn.shopify.com/s/files/1/0431/1220/2389/files/65856634780.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_off000057b3.bin
0c8382f7154e2f08353529d21ea521261470ebe87d868398268d17e70dd260ef
pdf-font-stream PDF embedded font (sfnt) at offset 0x57B3 4236 bytes
font_01_sfnt_off0000661d.bin
a7623c1fa1367ca186ed4c1dc3064f865aad38d4e903616b9105983b080f90d1
pdf-font-stream PDF embedded font (sfnt) at offset 0x661D 15276 bytes
font_02_sfnt_off00009523.bin
1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e
pdf-font-stream PDF embedded font (sfnt) at offset 0x9523 4324 bytes