Malicious PDF — malware analysis report

Static analysis result for SHA-256 d2ee0b964b27ffba…

MALICIOUS

PDF

48.9 KB Created: 2020-08-04 04:43:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 173ed1084c4f3168595a83602eb681e2 SHA-1: 4ba9f042c96a34a1860c08ab00cc14f571a9a6b7 SHA-256: d2ee0b964b27ffbad0c34f242604b3288debcf611665272cc80feda58b2f905a
152 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one critical heuristic firing indicating a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains text related to 'lean agile software development' and a URL that appears to be a lure. The primary malicious URL identified is https://ttraff.com/pify?keyword=lean+agile+software+development+achieving+enterprise+agility+pdf, which likely serves as a gateway to further malicious content.

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.com/pify?keyword=lean+agile+software+development+achieving+enterprise+agility+pdf
    • http://files.garygintherstudios.com/uploads/1/3/2/7/132712115/4249207.pdf
    • http://files.alexanderecology.com/uploads/1/3/1/4/131438563/lokegikosexiras.pdf
    • http://votexetuj.jemskpropertyventuresinc.com/uploads/1/3/1/4/131438641/93bd15146622314.pdf
    • http://files.trefonen.org/uploads/1/3/1/1/131163533/63df3d00ca5db4.pdf
    • https://cdn.shopify.com/s/files/1/0428/4717/4812/files/napawawol.pdf
    • https://cdn.shopify.com/s/files/1/0434/7789/3270/files/28349266118.pdf
    • https://cdn.shopify.com/s/files/1/0434/1848/4888/files/70885580619.pdf
    • https://cdn.shopify.com/s/files/1/0434/5013/8784/files/75101941401.pdf
    • https://cdn.shopify.com/s/files/1/0430/3470/6069/files/ace_stream_chromecast.pdf
    • https://cdn.shopify.com/s/files/1/0432/2898/7547/files/rulesoliwurelusisarafu.pdf
    • https://cdn.shopify.com/s/files/1/0437/3836/6104/files/66172187541.pdf
    • https://cdn.shopify.com/s/files/1/0432/5857/7046/files/63097201011.pdf
    • https://cdn.shopify.com/s/files/1/0437/2122/8442/files/newegasakuxaradofoxapom.pdf
    • https://cdn.shopify.com/s/files/1/0435/5581/5583/files/vejibudeninasoxuvebepa.pdf
    • https://cdn.shopify.com/s/files/1/0431/5512/8480/files/54747682232.pdf
    • https://cdn.shopify.com/s/files/1/0434/2241/7046/files/48561162005.pdf
    • https://cdn.shopify.com/s/files/1/0428/2833/3219/files/lezexufagapa.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/
    • https://cdn.shopify.com/s/files/1/0428/2833/3219/fil

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007156.bin
2efbc81bc8a15cd1b04af93cf90202ee4486986404ffa972a4501903ec2d2afe
pdf-font-stream PDF embedded font (sfnt) at offset 0x7156 5552 bytes
font_01_sfnt_off0000842d.bin
6ab3e28ff3eba895d818777f3f3321299ea789097e9f125ac853a7a8e5c77aa8
pdf-font-stream PDF embedded font (sfnt) at offset 0x842D 10340 bytes
font_02_sfnt_off0000a75f.bin
b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c
pdf-font-stream PDF embedded font (sfnt) at offset 0xA75F 4324 bytes