Malicious PDF — malware analysis report

Static analysis result for SHA-256 988bf2e37780dc31…

MALICIOUS

PDF

14.0 KB Created: 2019-04-30 18:39:39 +01:00 Authoring application: mPDF 5.7
MD5: 43c80fe417e00da03369abc1bb1a7446 SHA-1: fa0a9bca8b9f46614b892e6926c595c7dfa100b8 SHA-256: 988bf2e37780dc3188ec00f339dd82987932e79b3d2307a95d6c408ee7ede99f
60 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

The PDF contains a link farm with 21 external links, all pointing to the same domain 'loaminoo.linkpc.net'. While the individual linked PDFs are marked as benign, the sheer volume and the nature of the domain suggest a potential attempt to manipulate search engine results or to distribute malicious content indirectly. No scripts were extracted, and the document body was heavily obfuscated, limiting further analysis of the immediate intent beyond the link farm.

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.lin
    • http://loaminoo.linkpc.net/4096091093090094/Snow-Dog-by-Jim-Kjelgaard.pdf
    • http://loaminoo.linkpc.net/9098093096090093/Chip-the-Dam-Builder-by-Jim-Kjelgaard.pdf
    • http://loaminoo.linkpc.net/2099096097091/Wolf-Brother-by-Jim-Kjelgaard.pdf
    • http://loaminoo.linkpc.net/4099095093090093/A-Nose-For-Trouble-by-Jim-Kjelgaard.pdf
    • http://loaminoo.linkpc.net/6097096098094090/Red-Lion-Blue-Lion-WARS-The-Battle-of-Phobos---Gongen-Part-2-of-3-by-Sabrina-Fried.pdf
    • http://loaminoo.linkpc.net/2095093095095098/A-Lion-Called-Christian-The-True-Story-of-the-Remarkable-Bond-Between-Two-Friends-and-a-Lion-by-Anthony-Bourke.pdf
    • http://loaminoo.linkpc.net/5091092095093093/3-1-3-gatsu-no-Lion-1-March-comes-in-like-a-lion-1-by-Chica-Umino.pdf
    • http://loaminoo.linkpc.net/1090095097098095/The-Clay-Lion-The-Clay-Lion-1-by-Amalie-Jahn.pdf
    • http://loaminoo.linkpc.net/1094098095099092/Lion-s-Blood-Lion-s-Blood-1-by-Steven-Barnes.pdf
    • http://loaminoo.linkpc.net/1097096093097095/The-Hound-by-H-P-Lovecraft.pdf
    • http://loaminoo.linkpc.net/4091094090097096/Hound-Dog-amp-Bean-by-B-G-Thomas.pdf
    • http://loaminoo.linkpc.net/8094098091092094/The-Hound-of-the-Baskervilles-by-Janet-Borsbey.pdf
    • http://loaminoo.linkpc.net/8094098092094095/The-Hound-of-the-Baskervilles-by-Anthony-Hinds.pdf
    • http://loaminoo.linkpc.net/8098093098090090/Slaughter-s-Hound-by-Declan-Burke.pdf
    • http://loaminoo.linkpc.net/3099098095099091/The-Real-Inspector-Hound-by-Tom-Stoppard.pdf
    • http://loaminoo.linkpc.net/5095095090091090/Crap-Hound-5-by-Sean-Tejaratchi.pdf
    • http://loaminoo.linkpc.net/8094098090094091/The-Hound-of-the-Baskervilles-by-Henry-Brook.pdf
    • http://loaminoo.linkpc.net/5092095092097096/The-Hound-of-the-Baskervilles-by-Arthur-Conan-Doyle.pdf
    • http://loaminoo.linkpc.net/8094098090098092/The-Hound-of-the-Baskervilles-The-Graphic-Novel-by-Vinod-Kumar.pdf
    • http://loaminoo.linkpc.net/1094090092094096/The-Hound-of-the-Baskervilles-by-Arthur-Conan-Doyle.pdf

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