Malicious PDF — malware analysis report

Static analysis result for SHA-256 f5de47644d533ed2…

MALICIOUS

PDF

61.7 KB Created: 2020-08-30 07:08:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f2d390cd73c0e94e94a54a42beb16b58 SHA-1: 4de071b66ef4486c037955e67873621fe22077cd SHA-256: f5de47644d533ed20d223f103f3a323e0156243aa318119c68c39190bcc5b286
152 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.link, disguised with a search query for 'trane xv90 parts manual'. This suggests a phishing or malware distribution attempt. The document also hosts a large number of external PDF links, many pointing to Shopify, which is indicative of a link farm used for SEO manipulation or to obscure malicious destinations. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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=trane+xv90+parts+manual
    • https://cdn.shopify.com/s/files/1/0431/0702/5056/files/60415061446.pdf
    • https://cdn.shopify.com/s/files/1/0427/8091/7926/files/kejudegotoribel.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/banefidofekadozimodomi.pdf
    • https://cdn.shopify.com/s/files/1/0432/3095/3627/files/69424122986.pdf
    • https://cdn.shopify.com/s/files/1/0439/8471/5934/files/mathematics_grade_10_textbook.pdf
    • https://cdn.shopify.com/s/files/1/0433/3230/5054/files/lean_six_sigma_black_belt_training.pdf
    • https://cdn.shopify.com/s/files/1/0465/1450/3830/files/shoulder_exercises_adhesive_capsulitis.pdf
    • https://cdn.shopify.com/s/files/1/0432/9429/4171/files/95380095469.pdf
    • https://cdn.shopify.com/s/files/1/0433/3839/9902/files/fakugi.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/riwemabosemuridaredexe.pdf
    • https://cdn.shopify.com/s/files/1/0432/9593/2574/files/license_code_for_easeus_partition_master_13.0.pdf
    • https://cdn.shopify.com/s/files/1/0430/7235/6509/files/65656329076.pdf
    • https://cdn.shopify.com/s/files/1/0429/3961/3347/files/nonelawuvi.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_off00009a3b.bin
0328450307141776542ce3d15a0ff2ecd0fd77039e7a405f808448fede697418
pdf-font-stream PDF embedded font (sfnt) at offset 0x9A3B 5064 bytes
font_01_sfnt_off0000ab57.bin
1abed15ec87c2d38572757a03004e18774b02768db2a346dc5fc51c288826773
pdf-font-stream PDF embedded font (sfnt) at offset 0xAB57 15936 bytes
font_02_sfnt_off0000dbe0.bin
7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71
pdf-font-stream PDF embedded font (sfnt) at offset 0xDBE0 4324 bytes