Malicious PDF — malware analysis report

Static analysis result for SHA-256 f038b89b424b616d…

MALICIOUS

PDF

53.7 KB Created: 2020-08-21 20:41:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9406c356895d93f8803a5dd845cd7e1b SHA-1: b565ce0d0567572be16626c2998f4006d0063a23 SHA-256: f038b89b424b616d5a56c5063658da0aea5aa72d3d46fa960311b12261cc39b2
120 Risk Score

Malware Insights

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

The PDF was identified as malicious due to its inclusion of a large number of external links, a technique often used for SEO manipulation or to host malicious content. One critical heuristic flagged a link to a known malicious redirector, ttraff.cc, which likely serves as the initial point of compromise. The document body contains garbled text but also includes the same redirector URL and several Shopify-hosted PDF links, reinforcing the link farm attack pattern.

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=sairat+dj+song++mp4
    • http://zemepo.kyocreations.com/uploads/1/3/1/8/131856214/zudumazesagib.pdf
    • http://files.nspirehomesolutions.com/uploads/1/3/1/3/131380343/6a4acd81f7193f.pdf
    • http://files.trigvintage.com/uploads/1/3/1/4/131409761/giravodowe.pdf
    • https://cdn.shopify.com/s/files/1/0431/7364/2389/files/bakteri_agrobacterium_tumefaciens.pdf
    • https://cdn.shopify.com/s/files/1/0430/6246/0577/files/30270259183.pdf
    • https://cdn.shopify.com/s/files/1/0432/1456/9631/files/flutter_android_sdk_manager_tool_not_found.pdf
    • https://cdn.shopify.com/s/files/1/0436/4127/4521/files/kent_repertory.pdf
    • https://cdn.shopify.com/s/files/1/0438/1881/1552/files/jumidobovusujosiruviwa.pdf
    • https://cdn.shopify.com/s/files/1/0440/5706/7685/files/tuwemogodopobep.pdf
    • https://cdn.shopify.com/s/files/1/0432/9802/9733/files/7228117665.pdf
    • https://cdn.shopify.com/s/files/1/0431/4087/4408/files/alcatel_3025_user_manual.pdf
    • https://cdn.shopify.com/s/files/1/0452/7711/8625/files/wowudupabirisokovupemi.pdf
    • https://cdn.shopify.com/s/files/1/0428/0025/1036/files/billing_information_incorrect_apple.pdf
    • https://cdn.shopify.com/s/files/1/0432/4950/0315/files/benzi_desenate_romanesti.pdf
    • https://cdn.shopify.com/s/files/1/0439/4798/3006/files/zami_audre_lorde_espaol.pdf
    • https://cdn.shopify.com/s/files/1/0438/1586/2434/files/pig_latin_python.pdf
    • https://cdn.shopify.com/s/files/1/0440/8596/9048/files/xarikez.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_off00006e72.bin
000a0208b0cb5230a65849aa8021136a27e752a27b174c1445682b7ce9e8ea5f
pdf-font-stream PDF embedded font (sfnt) at offset 0x6E72 5512 bytes
font_01_sfnt_off0000811b.bin
f4f261a0e3e54d0c0b4ee34ebd711520e300329efc85f3d88d9098c4090e982c
pdf-font-stream PDF embedded font (sfnt) at offset 0x811B 15860 bytes
font_02_sfnt_off0000b29c.bin
e93acd332f5893643511f4cefd38969ad5c744ad1b08842a788b6be7d277dd15
pdf-font-stream PDF embedded font (sfnt) at offset 0xB29C 16204 bytes