Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce0dc153d7dfd9d8…

MALICIOUS

PDF

54.5 KB Created: 2020-08-08 13:07:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f077781b0ccbb537a76a9eee35b4a6a1 SHA-1: 327861757f342b861b75fb7d493f52381f1bdaea SHA-256: ce0dc153d7dfd9d8817b6aec14ee2757c91e4a16ddbf268db676c400dfc20cef
152 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 pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains a URL that appears to be the same redirector. This suggests the primary purpose is to lure users to a malicious site, likely for further exploitation or phishing.

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=ap+calculus+ab+limits+and+continuity+pdf
    • http://files.naacpmaryland.org/uploads/1/3/0/7/130776042/badikubukisadok_fapata_jemivir_murebagezoneme.pdf
    • http://files.seabrookband.org/uploads/1/3/0/8/130814805/filukinaw.pdf
    • http://vagemaviz.newwoodfordhs.com/uploads/1/3/1/4/131407406/7253464.pdf
    • https://cdn.shopify.com/s/files/1/0431/7904/9121/files/matuniromaxisuju.pdf
    • https://cdn.shopify.com/s/files/1/0436/4979/4213/files/sherlock_holmes_malayalam.pdf
    • https://cdn.shopify.com/s/files/1/0428/6241/1942/files/wosekusazib.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/wadilizesiwegokadokepub.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tikifulodu.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/24221046066.pdf
    • https://cdn.shopify.com/s/files/1/0430/9693/2505/files/67803298089.pdf
    • https://cdn.shopify.com/s/files/1/0433/6133/7494/files/koxefevoxuz.pdf
    • https://cdn.shopify.com/s/files/1/0431/7662/4279/files/vefem.pdf
    • https://cdn.shopify.com/s/files/1/0429/6966/1589/files/24009209354.pdf
    • https://cdn.shopify.com/s/files/1/0431/4578/9606/files/renewable_energy_definition.pdf
    • https://cdn.shopify.com/s/files/1/0431/4673/9878/files/wazodokulepalawusutolena.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000759e.bin
89b003f84b89131ab61260b1717064d1de775dfcecd407884905f5c7473509e0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x759E 5436 bytes
font_01_sfnt_off0000880e.bin
56a53b80793a57ae0a2ff185a047ca1e37b57a0e8d64e13b04e3c35c58b8895d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x880E 1956 bytes
font_02_sfnt_off00009131.bin
a83bd5ac6a6d70082363aa568b4360559bb3b35679cfb1dc1eb94b8b44135861		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9131 11056 bytes
font_03_sfnt_off0000b594.bin
1659acb61f231779b055239db44c1b0ac96004b910fff61a47d8ce8555ac19a9		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB594 16484 bytes

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