Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e46ce1f40e362d1…

MALICIOUS

PDF

53.3 KB Created: 2020-08-04 22:47:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 04ff94bc27d36aa75d153dc39219fed0 SHA-1: af3bdcdc950c7cf843c565b60cc3371afa7c1c9a SHA-256: 2e46ce1f40e362d11af0337f3dd2f39608633d4a65b83c0dfa09efc8fc746191
150 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains the same URL, suggesting a social engineering lure. The presence of numerous external PDF links, many hosted on 'cdn.shopify.com', indicates a link farm designed to obscure the ultimate destination. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.com/pify?keyword=technical+drawing+paper+pdf
    • http://files.montanaarabianhorses.com/uploads/1/3/0/7/130776120/39c798a6a4.pdf
    • http://norexasu.swallowfall.com/uploads/1/3/1/4/131453541/fijufanakizobi_jivikipif_tobutom.pdf
    • http://files.hccflmetz.com/uploads/1/3/1/8/131856050/xolelibalumifapeko.pdf
    • http://files.rossdillon.com/uploads/1/3/1/8/131871994/voxelorujavonu.pdf
    • http://files.mobilebirdgrooming.net/uploads/1/3/0/7/130776351/371a096d.pdf
    • https://cdn.shopify.com/s/files/1/0431/8520/9507/files/luripetibamuvek.pdf
    • https://cdn.shopify.com/s/files/1/0431/9048/5150/files/46252185419.pdf
    • https://cdn.shopify.com/s/files/1/0429/6779/3817/files/molupixufalibefatuzakofu.pdf
    • https://cdn.shopify.com/s/files/1/0432/0329/7438/files/gekavulotoxijadupivijiba.pdf
    • https://cdn.shopify.com/s/files/1/0429/1382/4927/files/bekajodufukalexikapaxi.pdf
    • https://cdn.shopify.com/s/files/1/0437/4449/3720/files/git_branch_set_upstream_to.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gofifarigomikidapowokov.pdf
    • https://cdn.shopify.com/s/files/1/0431/1043/2929/files/baneful_magick_download.pdf
    • https://cdn.shopify.com/s/files/1/0434/3798/1852/files/lumefebofexebofesizut.pdf
    • https://cdn.shopify.com/s/files/1/0434/4276/5976/files/54890997518.pdf
    • https://cdn.shopify.com/s/files/1/0440/5529/8213/files/verujusup.pdf
    • https://cdn.shopify.com/s/files/1/0432/4953/3088/files/56047778236.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_off00008595.bin
74c730074233458d15cbf0ab67216fa326aa9d3c7b5f3e251d4495c0d0554a23
pdf-font-stream PDF embedded font (sfnt) at offset 0x8595 4880 bytes
font_01_sfnt_off00009624.bin
b4a03b5465d2df73c5886c39407888452057227970ddfe550c4ad7128c15b2be
pdf-font-stream PDF embedded font (sfnt) at offset 0x9624 10584 bytes
font_02_sfnt_off0000ba4f.bin
a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f
pdf-font-stream PDF embedded font (sfnt) at offset 0xBA4F 4324 bytes