Malicious PDF — malware analysis report

Static analysis result for SHA-256 d7e5700b34d4c6f7…

MALICIOUS

PDF

46.9 KB Created: 2020-08-20 07:46:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b3803ab194f0c60b17058a3aa48d47d9 SHA-1: 4f2c78473162e10c01e0aa4bab8f6d656727cd9d SHA-256: d7e5700b34d4c6f7d2f30b015e7b03ee24a2596439d51acbb4a1766bbd059a55
158 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains embedded JavaScript and multiple links, one of which points to a known malicious redirector infrastructure. The document body text and embedded links suggest a lure for downloading content, likely leading to malware. The presence of embedded JS and the redirector link indicate an attempt to deliver a malicious payload or redirect the user to a phishing site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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.cc/pify?keyword=burying+the+ex+full+movie++300mb
    • http://vukasefap.super-sounds.com/uploads/1/3/0/9/130969280/4124705.pdf
    • http://begime.biglittlebrains.com/uploads/1/3/1/1/131164250/jogixa.pdf
    • https://cdn.shopify.com/s/files/1/0430/6223/1201/files/2013_ford_focus_owners_manual.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/97072231683.pdf
    • https://cdn.shopify.com/s/files/1/0430/6668/7642/files/katukopuwadozid.pdf
    • https://cdn.shopify.com/s/files/1/0463/0960/5541/files/award_certificate_templates_free_printable.pdf
    • https://cdn.shopify.com/s/files/1/0434/8156/3286/files/wakag.pdf
    • https://cdn.shopify.com/s/files/1/0447/9208/6685/files/branches_of_government_project.pdf
    • https://cdn.shopify.com/s/files/1/0432/9812/8036/files/free_enchanted_forest_wedding_invitation_template.pdf
    • https://cdn.shopify.com/s/files/1/0433/3145/3081/files/legola.pdf
    • https://cdn.shopify.com/s/files/1/0434/1838/6588/files/zunosigo.pdf
    • https://cdn.shopify.com/s/files/1/0436/7322/3321/files/gipinugexep.pdf
    • https://cdn.shopify.com/s/files/1/0432/7401/0782/files/solafit.pdf
    • https://cdn.shopify.com/s/files/1/0435/0076/5336/files/43879242533.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 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004635.bin
07f5065ae659237f99dfff0be9f307bc2adc94b8f244748697bee8a6c403fd7b
pdf-font-stream PDF embedded font (sfnt) at offset 0x4635 5520 bytes
font_01_sfnt_off000058f1.bin
87985804ebf98b1030980f20b4e39595e1aa76caccafc3e7d64f2ca02509db1c
pdf-font-stream PDF embedded font (sfnt) at offset 0x58F1 20968 bytes
font_02_sfnt_off00007922.bin
5e0676e134781f2a21c06a0d045eebc95ad2f72f5ed7fc876ffdcead7ccbe471
pdf-font-stream PDF embedded font (sfnt) at offset 0x7922 2276 bytes
font_03_sfnt_off000082eb.bin
36ebd19562643ff10b12611582aa0c311f64c27ad5ac60e82da2fdbe962c4798
pdf-font-stream PDF embedded font (sfnt) at offset 0x82EB 9864 bytes
font_04_sfnt_off0000a4c0.bin
e5f30af547b55dfbbae63869c45e93d04e829a64999393572a2275da8290585e
pdf-font-stream PDF embedded font (sfnt) at offset 0xA4C0 2056 bytes