Malicious PDF — malware analysis report

Static analysis result for SHA-256 ca108781a0ef478e…

MALICIOUS

PDF

61.2 KB Created: 2020-08-29 06:30:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bfe815518ccdda293aaa7ce0a91d5bca SHA-1: 9eb5a38b52403ca108ccff31cae3cbfe35f91f95 SHA-256: ca108781a0ef478e8e841edc171993cedb04c35d29023fd2008deb869a9be567
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link, which is also present in the document body. This link, 'https://ttraff.link/wix?keyword=tacho+pro+v+2008+manual+pdf', is designed to lure users to malicious infrastructure. The PDF also contains a link farm heuristic, indicating a large number of external links, with 'https://cdn.shopify.com/s/files/1/0434/7111/0308/files/kasinuvosu.pdf' being the first identified. The ML classifier strongly supports the malicious verdict.

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.link/wix?keyword=tacho+pro+v+2008+manual+pdf
    • https://cdn.shopify.com/s/files/1/0434/7111/0308/files/kasinuvosu.pdf
    • https://cdn.shopify.com/s/files/1/0437/4550/9537/files/table_flip_ascii.pdf
    • https://cdn.shopify.com/s/files/1/0431/2032/8864/files/algebra_1_summer_review_packet_with_answers.pdf
    • https://cdn.shopify.com/s/files/1/0440/8701/7637/files/bmi_berekenen_nieuwe_formule.pdf
    • https://cdn.shopify.com/s/files/1/0429/8126/1466/files/mobojine_for_pc.pdf
    • https://cdn.shopify.com/s/files/1/0431/3461/5708/files/zigumavotaxowo.pdf
    • https://cdn.shopify.com/s/files/1/0430/0485/4426/files/kaplan_medessentials_vs_first_aid.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/sejil.pdf
    • https://cdn.shopify.com/s/files/1/0429/6884/2393/files/82426043713.pdf
    • https://cdn.shopify.com/s/files/1/0428/2250/0518/files/89964308887.pdf
    • https://cdn.shopify.com/s/files/1/0435/7190/4673/files/tuxexoxiw.pdf
    • https://cdn.shopify.com/s/files/1/0434/8333/2773/files/kuvexuladodotofab.pdf
    • https://cdn.shopify.com/s/files/1/0430/2834/9085/files/noxupepuwogisavetivuzobaj.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_off00009127.bin
fbdb96a803d9053eeeab106d48ceacd2c0584c32415e0efc1ae0d5f3a848e608		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9127 4992 bytes
font_01_sfnt_off0000a22c.bin
e3a67a62977de8063db37d76962056554b063f60f3339469fb9853d2bab2d2e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA22C 5692 bytes
font_02_sfnt_off0000b55e.bin
817e25eb83d857da63ad4d94f66d08df1ca6b25f3b7e4671d9d5b29842207ca6		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB55E 16232 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.