Malicious PDF — malware analysis report

Static analysis result for SHA-256 3a9b26ca6f949a76…

MALICIOUS

PDF

27.4 KB Created: 2019-05-03 06:06:53 +01:00 Authoring application: mPDF 5.7
MD5: 5f3832b3e5d84ec48f85714a1759e7f4 SHA-1: 4a72271aae605c1fd0103da5b151449a0a3c642c SHA-256: 3a9b26ca6f949a76f8e8eba6dc4a33ef39cb8a29c701a11cc354815e04d64014
60 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links, identified by the PDF_SEO_LINK_FARM heuristic, pointing to external PDF files. While many of these URLs were labeled as confirmed_benign, the sheer volume and the nature of the heuristic suggest a malicious intent, possibly for SEO manipulation or to distribute further malicious content. No scripts were extracted from this sample.

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://cefasfese.4pu.com/2732733738739/Fight4u2-A-Guide-for-Those-with-Cancer-or-Chronic-Illness-by-Cheryl-Merkel.pdf
    • http://cefasfese.4pu.com/2736738732735730/Say-Yes-to-Success-Despite-Your-Chronic-Illness-10-Weeks-to-Overcoming-the-Obstacles-of-Chronic-Illness-and-Finally-Achieving-What-You-Want-in-Life-by-Kristi-Patrice-Carter.pdf
    • http://cefasfese.4pu.com/1731735732736738736/LIVING-WITH-CHRONIC-ILLNESS-by-Cheri-Register.pdf
    • http://cefasfese.4pu.com/3734735734739733/You-Don-t-Look-Sick-Living-Well-with-Invisible-Chronic-Illness-by-Joy-H-Selak.pdf
    • http://cefasfese.4pu.com/4734731733731730/When-Someone-You-Love-Has-a-Chronic-Illness-Hope-and-Help-for-Those-Providing-Support-by-Tamara-McClintock-Greenberg.pdf
    • http://cefasfese.4pu.com/3739733732738736/Dancing-with-Monsters-Chronic-Illness-as-Creative-Transformation-by-Kate-Wolfe-Jenson.pdf
    • http://cefasfese.4pu.com/1731735732735739738/Do-I-Have-an-Environmental-Disease-Recognition-and-Prevention-of-the-Causes-of-Cancer-and-Chronic-Diseases--by-Walter-Wortberg.pdf
    • http://cefasfese.4pu.com/1731739732739732731/Spontaneous-Recovery-Unexpected-Health-After-Chronic-Or-Incurable-Illness-The-Medical-Phenomenon-by-Claire-Warox.pdf
    • http://cefasfese.4pu.com/3734734730733733/Breaking-Out-of-Environmental-Illness-Essential-Reading-for-People-with-Chronic-Fatigue-Syndrome-Allergies-and-Chemical-Sensitivities-by-Robert-Sampson.pdf
    • http://cefasfese.4pu.com/6739736736738733/Healthcare-Partnerships-for-Pediatric-Adherence-Promoting-Collaborative-Management-for-Pediatric-Chronic-Illness-Care-by-David-D-Schwartz.pdf
    • http://cefasfese.4pu.com/1730738734739737735/Enigma-merkel-In-Europa-il-potere-donna-Angela-Merkel-by-Ubaldo-Villani-Lubelli.pdf
    • http://cefasfese.4pu.com/4739736733731737/Running-on-Empty-The-Complete-Guide-to-Chronic-Fatigue-Syndrome-by-Katrina-Berne.pdf
    • http://cefasfese.4pu.com/1730738735731736734/Klaus-Merkel-The-Reading-of-Time-in-the-Text-of-Nature-by-Klaus-Merkel.pdf
    • http://cefasfese.4pu.com/2732733739735/Fibromyalgia-And-Other-Chronic-Painful-Conditions-The-Patient-s-Guide-And-Survival-Manual-For-Obtaining-Proper-And-Effective-Medical-Care-by-Jeffrey-B-Loomer.pdf
    • http://cefasfese.4pu.com/2732733736736734/Helping-Someone-with-Mental-Illness-A-Compassionate-Guide-for-Family-Friends-and-Caregivers-by-Rosalynn-Carter.pdf
    • http://cefasfese.4pu.com/7733739731739730/Fuck-Off-Cancer-Breast-Cancer-Shaken-Not-Stirred-by-Linda-Brossi-Murphy.pdf
    • http://cefasfese.4pu.com/3733738730734734/I-Am-Cancer-Free-The-Author-s-True-Story-about-Her-Bout-with-Cancer-by-Brenda-Mohammed.pdf
    • http://cefasfese.4pu.com/4735735730737/The-Cancer-Poetry-Project-Poems-by-Cancer-Patients-and-Those-Who-Love-Them-by-Karin-B-Miller.pdf
    • http://cefasfese.4pu.com/1730738734733735731/Writing-amp-Healing-A-Mindful-Guide-for-Cancer-Survivors-by-Pamela-Post-Ferrante.pdf
    • http://cefasfese.4pu.com/9736739734732738/The-Silver-Lining-An-Insightful-Guide-to-the-Realities-of-Breast-Cancer-by-Hollye-Jacobs.pdf
    • http://cefasfese.4pu.com/4734731733731730/When-Someone-You-Love-Has-a-Chronic-Illness-Hope-and-Help-for-Those-Providing-Support-by-Tamara-McClintock-Greenber

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