Malicious PDF — malware analysis report

Static analysis result for SHA-256 8c056c416481c482…

MALICIOUS

PDF

41.8 KB Created: 2020-08-01 14:26:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3ce574ebb0601018d2282f830de86777 SHA-1: 416e162f21353a4343fa73496edf2b197512cc5b SHA-256: 8c056c416481c48295b3947705513507932e2d4e70eaa7926be7c9899f4cf26d
120 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded links, identified as a PDF link farm, designed to redirect users to external websites. One of these links, 'https://ttraff.ru/pify?keyword=jet+boy+jet+girl', is flagged as a known malicious redirector. The document's primary function appears to be to distribute these links, likely as a lure for further malicious activity.

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=jet+boy+jet+girl
    • http://files.artofeyewear.com/uploads/1/3/1/4/131405977/wiwapab_nixeleku_palesa_lovefu.pdf
    • http://files.treignathletics.org/uploads/1/3/1/0/131070561/zosofefe.pdf
    • http://files.michaeljaigrant.com/uploads/1/3/1/0/131070313/jividedijusaki.pdf
    • http://files.carlycsinn.com/uploads/1/3/1/4/131406800/ruvef_jajudatudozebus_guferowisesot.pdf
    • https://cdn.shopify.com/s/files/1/0439/8029/2254/files/fikana.pdf
    • https://cdn.shopify.com/s/files/1/0427/9864/5404/files/welovikopirubiwigazonu.pdf
    • https://cdn.shopify.com/s/files/1/0428/4514/3207/files/volinejubivewotiwotukifi.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/53681635306.pdf
    • https://cdn.shopify.com/s/files/1/0427/5470/3526/files/72521636300.pdf
    • https://cdn.shopify.com/s/files/1/0428/7237/3411/files/neboburitezi.pdf
    • https://cdn.shopify.com/s/files/1/0434/4279/8757/files/47269317954.pdf
    • https://cdn.shopify.com/s/files/1/0427/5470/3526/files/lifenize.pdf
    • https://cdn.shopify.com/s/files/1/0433/9302/4158/files/ziwuremexodefat.pdf
    • https://cdn.shopify.com/s/files/1/0434/5665/9621/files/zelabufudavino.pdf
    • https://cdn.shopify.com/s/files/1/0434/3264/0664/files/kigagifedafavinovegulasa.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_off00005517.bin
51a4a730473f381594492e7de78fdec87e4f933d1f7d2b3d50ae90ae146922d5
pdf-font-stream PDF embedded font (sfnt) at offset 0x5517 4736 bytes
font_01_sfnt_off000065b1.bin
72d32e700045d63e4d54315b63c5abd59dc90bb5f8344fdae1ae9d7da1a09d65
pdf-font-stream PDF embedded font (sfnt) at offset 0x65B1 4772 bytes
font_02_sfnt_off0000760e.bin
6bc27289efe5533862eb82be5270a2db1f4531abda6b0651449acbc1e62edbdb
pdf-font-stream PDF embedded font (sfnt) at offset 0x760E 10524 bytes