Malicious PDF — malware analysis report

Static analysis result for SHA-256 bb11eeddbfff8073…

MALICIOUS

PDF

57.3 KB Created: 2020-08-11 23:00:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 59a18bccbaeff799e66ba15982a7f753 SHA-1: 4d27bec5e7a837a430d44a3d359e5cfc05fe3da5 SHA-256: bb11eeddbfff807388f1d820f5e5031f0ab7ba30dba634e9c29f6e7e87cb7e3f
120 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with many links pointing to benign Shopify URLs but one critical link to a known malicious redirector. The document body, though heavily obfuscated, contains the text 'Movie soundtrack sheet music pdf' and the malicious URL, suggesting a lure to trick users into clicking the redirector. The redirector likely leads to a malicious payload or phishing page.

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=movie+soundtrack+sheet+music+pdf
    • http://files.redcoatmodels.com/uploads/1/3/0/7/130740175/6877460.pdf
    • http://files.bromleyfriendsforum.org/uploads/1/3/0/7/130775145/5894322.pdf
    • http://wivuvovuv.selfstorageoftx.com/uploads/1/3/1/8/131858661/1058269.pdf
    • http://files.iguanamercenary.com/uploads/1/3/1/4/131407152/raxotobuxiw-gapifijibabol-megasej-nunijebafaso.pdf
    • https://cdn.shopify.com/s/files/1/0431/6128/8868/files/tamil_christian_calendar_2020.pdf
    • https://cdn.shopify.com/s/files/1/0428/3321/5654/files/familyinfocenter_brighthorizons_com.pdf
    • https://cdn.shopify.com/s/files/1/0438/4735/2480/files/73943492046.pdf
    • https://cdn.shopify.com/s/files/1/0431/5706/1788/files/wonufadexo.pdf
    • https://cdn.shopify.com/s/files/1/0440/1335/5166/files/zend_avesta_part_2.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/49816413057.pdf
    • https://cdn.shopify.com/s/files/1/0435/6099/2927/files/poberugixijixinarajufizim.pdf
    • https://cdn.shopify.com/s/files/1/0432/5015/5688/files/86352044546.pdf
    • https://cdn.shopify.com/s/files/1/0432/2931/5229/files/powerdrive_v2_i_pilot.pdf
    • https://cdn.shopify.com/s/files/1/0430/3912/9751/files/effects_of_air_pollution_on_plants_animals_and_humans.pdf
    • https://cdn.shopify.com/s/files/1/0431/7990/1085/files/murexepo.pdf
    • https://cdn.shopify.com/s/files/1/0433/5173/6488/files/80903436940.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_off0000931f.bin
6460444503b0ecb84d621f7b57d0d521a3b8e4d69c64bd20b6bd576344c41fc1
pdf-font-stream PDF embedded font (sfnt) at offset 0x931F 5492 bytes
font_01_sfnt_off0000a5aa.bin
cb159cc9d714520fdf604515834a8e5d6ccdf81551317d8133b939af7313f940
pdf-font-stream PDF embedded font (sfnt) at offset 0xA5AA 6068 bytes
font_02_sfnt_off0000b55a.bin
5bbb45ae37ecc3aa60c5ea8304e72cb78e6b76ad1a9fc469e3a7029d51d646eb
pdf-font-stream PDF embedded font (sfnt) at offset 0xB55A 10208 bytes