Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e6e62c37caaa6e9…

MALICIOUS

PDF

46.1 KB Created: 2020-08-31 04:14:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2de72ecb008a24aeb6b1476a8a43582a SHA-1: b54feac4c88d5e6f940dd033e2c35250023be757 SHA-256: 7e6e62c37caaa6e9ff93b0d7fc4ea667566a1030bab58096a9bcaef12e36edd7
152 Risk Score

Malware Insights

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

The PDF contains embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text suggesting a lure for '3d çizgi film indir' (3D cartoon download), aligning with the malicious redirector's keyword. The PDF structure and embedded links are indicative of a phishing or malware delivery attempt.

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.ru/wix?keyword=3d+%25C3%25A7izgi+film+indir
    • https://cdn.shopify.com/s/files/1/0433/7932/7126/files/goniw.pdf
    • https://cdn.shopify.com/s/files/1/0437/6127/0935/files/beiman_priya_all_song.pdf
    • https://cdn.shopify.com/s/files/1/0430/7678/0192/files/76159101495.pdf
    • https://cdn.shopify.com/s/files/1/0435/8579/8301/files/assistant_project_manager_job_description.pdf
    • https://static.usrfiles.com/ugd/b8c837_ba1c95c30cf7409fb381c6f1eafe6daf.pdf
    • https://static.usrfiles.com/ugd/e2c6c1_e519464766d1474a9cbd677ed19f94cc.pdf
    • https://static.usrfiles.com/ugd/3ceeb9_0dafd74eafcb47e2ab2dfc78c93c6330.pdf
    • https://static.usrfiles.com/ugd/b8c837_9457d1d0d431470e8844057789c5ded9.pdf
    • https://static.usrfiles.com/ugd/defcb2_ffdda4325ead4299ae9573650ba13bff.pdf
    • https://static.usrfiles.com/ugd/b8c837_c76a66380c9f4b50990411721f5d42fe.pdf
    • https://static.usrfiles.com/ugd/b8c837_15216b0e15844e7fbff76eea20b523a7.pdf
    • https://static.usrfiles.com/ugd/41a0b6_1e0d6df823ee488d884d8660ec7cfc26.pdf
    • https://static.usrfiles.com/ugd/6f58fb_b2ba6ed10b9e4d27ae57ffa6c4ff6e34.pdf
    • https://static.usrfiles.com/ugd/b8c837_fe1cf5927d1e4b91a05f92b4c3a8a57b.pdf
    • https://static.usrfiles.com/ugd/c7ef1a_6112d62499a7419ea54c23f306056a44.pdf
    • https://static.usrfiles.com/ugd/a2e20a_64ba0228997b4e5c87540f17a3c34e65.pdf
    • https://static.usrfiles.com/ugd/0ebc1f_8dd734136e6e46ed97ecd79802ea4a95.pdf
    • https://static.usrfiles.com/ugd/b8c837_ad64b139ef814e4697fa16b5cca6eaac.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_off00006853.bin
f46399f50f6f792599e9fb4a595081df9196260be06be0ca8bdabcc80cc610eb
pdf-font-stream PDF embedded font (sfnt) at offset 0x6853 4620 bytes
font_01_sfnt_off000077d4.bin
858c368f3c162c9a2a4bd3436d53c8d6db0085fe15553eed85a3231130a68184
pdf-font-stream PDF embedded font (sfnt) at offset 0x77D4 11348 bytes
font_02_sfnt_off00009b4f.bin
1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e
pdf-font-stream PDF embedded font (sfnt) at offset 0x9B4F 4324 bytes