Malicious PDF — malware analysis report

Static analysis result for SHA-256 4d46fc13416726a4…

MALICIOUS

PDF

40.8 KB Created: 2020-08-24 04:32:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6ac1541485b3e29d2ac903e4be6c843b SHA-1: dd6b89a44da096ebaf00e2107ac2842941c63e36 SHA-256: 4d46fc13416726a4fbae354985b4e221659caedb3bdfdec0dc3ef4845c8f84fb
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to a redirector service. The document body text, though heavily obfuscated, contains references to 'crack after effect cc 2017', suggesting a lure for pirated software. The primary malicious IOC is the redirector URL, which likely leads to further malicious content or downloads.

Heuristics 3

  • 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 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=crack+after+effect+cc+2017+bagas31
    • http://dufigor.abbystafford.com/uploads/1/3/2/6/132682646/370bada60.pdf
    • http://foroke.crawlspaceencapsulations.com/uploads/1/3/0/7/130776760/kuvovagaw.pdf
    • http://files.metiworld2020.org/uploads/1/3/1/8/131871859/memiwodubosukeg-nekel-taderebux.pdf
    • http://sasufo.helpurchild.net/uploads/1/3/1/6/131606271/gufoxufu_romugiv_tizitazejodup_fokoxaso.pdf
    • https://cdn.shopify.com/s/files/1/0433/4911/5029/files/14799317461.pdf
    • https://cdn.shopify.com/s/files/1/0438/8493/7384/files/chakra_balancing_meditation_script.pdf
    • https://cdn.shopify.com/s/files/1/0431/9795/6256/files/55017241016.pdf
    • https://cdn.shopify.com/s/files/1/0435/5561/8977/files/2665083002.pdf
    • https://cdn.shopify.com/s/files/1/0432/8056/4392/files/2885062921.pdf
    • https://cdn.shopify.com/s/files/1/0430/2074/6906/files/27635629172.pdf
    • https://cdn.shopify.com/s/files/1/0432/7315/8821/files/jubalolevolowakufisa.pdf
    • https://cdn.shopify.com/s/files/1/0431/8678/2369/files/23579804065.pdf
    • https://cdn.shopify.com/s/files/1/0433/8457/0019/files/kovaak_s_fps_aim_trainer_scenarios.pdf
    • https://cdn.shopify.com/s/files/1/0431/6784/2455/files/iso_iec_17025_quality_manual.pdf
    • https://cdn.shopify.com/s/files/1/0429/0222/5059/files/76044526421.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005ded.bin
6015cedeec330f20bbabf0fbd355c508ae93a141947dc61987c8e2236a4c5845		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5DED 5696 bytes
font_01_sfnt_off0000716b.bin
0f2f7343030132b5aed54abb64e286a0f36934f0076cb8df749e1bfd0f633672		 pdf-font-stream PDF embedded font (sfnt) at offset 0x716B 11292 bytes

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