Malicious PDF — malware analysis report

Static analysis result for SHA-256 dbaac45c9d6fd72a…

MALICIOUS

PDF

78.2 KB Created: 2020-09-16 21:51:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3b2c03c7dad2a7a16aa6759e68daac13 SHA-1: 30c7f136e03c618a61a4a000f7a6f063375c0f04 SHA-256: dbaac45c9d6fd72ad136fa4ed6a857bfc383dd264d8e7ead464df194a54d96af
120 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.me, which is likely used to obscure the final destination of the malicious payload. The document also contains a large number of links to other PDFs hosted on Shopify, suggesting a link farm or SEO poisoning tactic to improve search engine ranking for the malicious content. No scripts were extracted from this sample.

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.me/wix?keyword=fgo+jp+translation+apk
    • http://files.atmospheremartialarts.com/uploads/1/3/2/7/132740291/34df9636dde7.pdf
    • http://xuvat.pdxfastpitch.com/uploads/1/3/1/8/131857211/wiwim_sosasexobazi_pufexulakimam_dajudedovo.pdf
    • http://daluzu.viciwreford-sinnott.com/uploads/1/3/2/8/132814989/1879116.pdf
    • http://kezowuji.melissalamoureuxlmft.com/uploads/1/3/1/4/131453872/bb8f3ac3152.pdf
    • http://gekabew.mrkearns.com/uploads/1/3/2/6/132683438/rofibovodililavez.pdf
    • https://cdn.shopify.com/s/files/1/0428/5700/5215/files/katar.pdf
    • https://cdn.shopify.com/s/files/1/0440/2987/0230/files/32959058014.pdf
    • https://cdn.shopify.com/s/files/1/0438/4522/2550/files/migebinafuzilutowobix.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mesibilefonupas.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xagene.pdf
    • https://cdn.shopify.com/s/files/1/0433/2797/9678/files/laporan_gastropoda.pdf
    • https://1a4bc26b-6346-40b5-9423-01b1b9c9f91f.filesusr.com/ugd/3225da_8ed3b1f0731b4e88a956b1eb5bce429c.pdf?index=true
    • https://a05d3a2c-9eb0-40a6-8470-b8374f777f1a.filesusr.com/ugd/9c0842_a44c9d2f11bf40558b44183d164122eb.pdf?index=true
    • 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 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006a23.bin
f7b8e218bffe806fe02bfcec621bdbbe66a7471c6ad4c9ee5a32787d1b9048e7
pdf-font-stream PDF embedded font (sfnt) at offset 0x6A23 29184 bytes
font_01_sfnt_off0000c4d1.bin
f6025591317a3d45bb825ae6577dc0c3d9822e6a8f90dd3b784198c910ce3d9b
pdf-font-stream PDF embedded font (sfnt) at offset 0xC4D1 4752 bytes
font_02_sfnt_off0000d4fd.bin
0c6c189292b6d519156a58f7b7fb50dc96a407a305788ea557b5a323bf62c838
pdf-font-stream PDF embedded font (sfnt) at offset 0xD4FD 15872 bytes
font_03_sfnt_off000105f8.bin
e069964e178c9237939278569639717db0920ee5b5d77961236348d9f3bb0bc0
pdf-font-stream PDF embedded font (sfnt) at offset 0x105F8 16308 bytes
font_04_sfnt_off00011ba3.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3
pdf-font-stream PDF embedded font (sfnt) at offset 0x11BA3 4324 bytes