Malicious PDF — malware analysis report

Static analysis result for SHA-256 ddb321a909e92eb3…

MALICIOUS

PDF

37.1 KB Created: 2020-09-07 23:50:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 49bd9283b70f1cacbee627751592a250 SHA-1: 4ee827504b45c3a25ee5d55ce28b2777759e294b SHA-256: ddb321a909e92eb3630869fd17c79e26bb5191512d7f044ffae885b96871888a
120 Risk Score

Malware Insights

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

The PDF file exhibits characteristics of a link farm, with numerous embedded URLs. One critical heuristic identifies a malicious redirector link, suggesting the primary intent is to lure users to malicious sites. The document body contains garbled text and embedded URLs, further supporting the link farm attack pattern. No scripts were extracted from this sample, limiting the ability to determine further payload delivery or execution.

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.link/wix?keyword=babies+photo+hd
    • https://cdn.shopify.com/s/files/1/0434/4568/2328/files/212_419_4555.pdf
    • https://cdn.shopify.com/s/files/1/0428/0100/4707/files/puritan_bennett_840_service_manual.pdf
    • https://cdn.shopify.com/s/files/1/0433/9505/5777/files/glomac_berhad_annual_report.pdf
    • https://cdn.shopify.com/s/files/1/0433/6012/5080/files/zemewaliliwunegowotibo.pdf
    • https://cdn.shopify.com/s/files/1/0430/8706/9335/files/91834876548.pdf
    • https://static.usrfiles.com/ugd/359e64_cd58030840704265b4bdb7a71e2a3890.pdf
    • https://static.usrfiles.com/ugd/e4a001_d7e4edba1a4a471a94ac3a38e8431db3.pdf
    • https://static.usrfiles.com/ugd/d1fcfc_d7c30351bc4e4f7f99291deda21da530.pdf
    • https://static.usrfiles.com/ugd/0789d5_b033eb1d04694db0a95bf525bdef9c38.pdf
    • https://static.usrfiles.com/ugd/105a8c_0a19f8ad62c04690886e6c7f4e899cf0.pdf
    • https://static.usrfiles.com/ugd/b6aaa0_f28c0a480bab4aadab07131842c4d05f.pdf
    • https://static.usrfiles.com/ugd/e1a791_d10e9103eebb4a60a151ef75e8ed1f90.pdf
    • https://static.usrfiles.com/ugd/c4b402_fa12a084e05f452aa1765cf3ae9085d9.pdf
    • https://static.usrfiles.com/ugd/913720_34f2891ea04d4b44aac0ccac9cc38d1b.pdf
    • https://static.usrfiles.com/ugd/078c79_7dfd00dec0cf4bca92335fddb22538e3.pdf
    • https://static.usrfiles.com/ugd/ba3095_ea43695116c7468c80122a550f933cf3.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_off000049aa.bin
64e557d210a478796772a69b277fda5cbab7034caf10ec23217e8857a63dbaaf
pdf-font-stream PDF embedded font (sfnt) at offset 0x49AA 4788 bytes
font_01_sfnt_off000059f3.bin
bfd8a64bfcc4688ee32b21d33f3dd13bc1ec3c15099b60a3402417744c65ce49
pdf-font-stream PDF embedded font (sfnt) at offset 0x59F3 9176 bytes
font_02_sfnt_off0000794c.bin
ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230
pdf-font-stream PDF embedded font (sfnt) at offset 0x794C 4324 bytes