Malicious PDF — malware analysis report

Static analysis result for SHA-256 c2e5af56268a881a…

MALICIOUS

PDF

17.7 KB Created: 2019-05-02 05:22:06 +01:00 Authoring application: mPDF 5.7
MD5: 9b5c55d03c7f4714e9815f0fd37cd4d1 SHA-1: 372968abc44812c7a9e580026744e7f54ee82290 SHA-256: c2e5af56268a881ac8f0617cc6fdb859c8615b6d5524c9792bfdb55ee0f9652e
90 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF contains a large number of embedded URLs pointing to external PDF files, a technique often used for SEO poisoning or to redirect users to malicious content. The ML classifier strongly indicated maliciousness. No scripts were extracted, and the document body was heavily obfuscated, preventing a deeper analysis of the specific lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9925

Heuristics 2

  • 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 http://loaminoo.linkpc.net/1092098092093099/The-Sultan-s-Seal-Kamil-Pasha-1-by-Jenny-White.pdf
    • http://loaminoo.linkpc.net/1092092093093094/A-Sultan-s-Ransom-Shadow-Soldiers-2-by-Loreth-Anne-White.pdf
    • http://loaminoo.linkpc.net/4091098091091094/Cowboy-SEAL-Christmas-Navy-SEAL-Cowboys-3-by-Nicole-Helm.pdf
    • http://loaminoo.linkpc.net/3093097090096098/Romancing-the-SEAL-Hero-s-Honor-Book-2-SEAL-Military-Romance-Series-by-Abigail-Austin.pdf
    • http://loaminoo.linkpc.net/3093096099099099/Romancing-the-SEAL-The-Call-of-Duty-Book-1-SEAL-Military-Romance-Series-by-Abigail-Austin.pdf
    • http://loaminoo.linkpc.net/3092099096098093/HOT-SEAL-Bride-HOT-SEAL-Team-4-by-Lynn-Raye-Harris.pdf
    • http://loaminoo.linkpc.net/3099095091096099/HOT-SEAL-Rescue-HOT-SEAL-Team-3-by-Lynn-Raye-Harris.pdf
    • http://loaminoo.linkpc.net/4097095096094094/SEAL-Under-Covers-SEAL-Brotherhood-3-by-Sharon-Hamilton.pdf
    • http://loaminoo.linkpc.net/3099090096091091/Hot-SEAL-HOT-SEAL-Team-1-by-Lynn-Raye-Harris.pdf
    • http://loaminoo.linkpc.net/4095098095097096/Accidental-SEAL-SEAL-Brotherhood-1-by-Sharon-Hamilton.pdf
    • http://loaminoo.linkpc.net/3095098096094092/People-Park-by-Pasha-Malla.pdf
    • http://loaminoo.linkpc.net/9099096096091/The-Withdrawal-Method-by-Pasha-Malla.pdf
    • http://loaminoo.linkpc.net/4091093099099099/Get-Things-Done-and-Feel-Great-115-Holistic-Ways-to-Increase-Productivity-and-Boost-Your-Energy-by-Kamil-C-Kowalski.pdf
    • http://loaminoo.linkpc.net/2091095090090092/The-Journey-Prize-Stories-22-The-Best-of-Canada-s-New-Writers-by-Pasha-Malla.pdf
    • http://loaminoo.linkpc.net/1097097096099097/Shapeshifter-Romance-Saved-by-the-Tiger-SEAL-Paranormal-BBW-Shifter-Army-Navy-Seal-Protector-Romance-Fantasy-Urban-Military-Adventure-Older-Man-Short-Stories-by-J-K-Hudson.pdf
    • http://loaminoo.linkpc.net/2090091090094096/Jenny-and-the-Cat-Club-A-Collection-of-Favorite-Stories-about-Jenny-Linsky-by-Esther-Averill.pdf
    • http://loaminoo.linkpc.net/3096091091099098/A-Gift-for-the-Sultan-by-Geoffrey-E-Fox.pdf
    • http://loaminoo.linkpc.net/6093098093096098/I-Am-a-Visitor-on-This-Earth-by-Faiza-Sultan.pdf
    • http://loaminoo.linkpc.net/1093092097094095/The-Sultan-of-Byzantium-by-Sel-uk-Altun.pdf
    • http://loaminoo.linkpc.net/1091097090094091097/The-Sultan-s-Sissy-by-Melinda-Streng.pdf
    • http://loaminoo.linkpc.net/4095098095097096/Accidental-SEAL-SEAL-Brotherhood-1-by-Sha

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